KERN, JEAN G. and others Special protective garment for aviators (Seenotschutzgerat) 1945 7 p Description of a garment designed to protect aviators and navy personnel against freezing in cold ocean water. The garment was developed by Prof. Mecheels; it consisted of 3 layers and contained a special powder in the middle layer, which was to form a protective foam upon contact with salt water. The powder consisted of 24.4% Mersolat H-30 and 41.46% NaHCO₃, and 34.14% citrio acid. Composition of another, less effective, powder is also given: 24.4% IGEPON AP extra conc. and 30.9% NaHCO₃ and 30.9% Benzoic acid. The preparation of Mersolat H-30 and Igepon AP extra conc. is oulined in the appnendix. A person equipped with the garment can exist in 0 degrees C water for 3 hours or more. APPAREL AND OTHER FINISHED PRODUCTS MADE FROM FABRICS AND SIMILAR MATERIALS
Germany
BSIR 1( 1): 1, 1946-01-11 ADAMSON, D.W. Account of Prof. R. Kuhn on "3065", a benzil derivative 1945 6 p Brief account of synthesised simple derivatives of benzil which been found to have the same order [of effectiveness] as penicillin, and in some cases more effective[ness]. Most effective, termed "3065," is the 2:2' dehydroxy- 5:5' -dibromo benzil. "3065" is stable towards heat, is little soluble in water, but is soluble in weak alkalis and forms a water soluble complex with boric acid. Brief report is also given on the therepeutic value of unsaturated cyclic hydrocarbons, such as cyclo-octane tetraene and cyclodecane pentane. Cyclodecane pentaene, a deep blue liquid, is stable for several months in the pure state, and for years in the presence of phenols. It has the important property of being active against B. Coli infections and high activity against inflammation. Used has prophylactually or applied 2 hours after contamination, it has proved very effective against mustard gas burns. Report PB 5 gives further information. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 1, 1946-01-11 ADAMSON, D.W. Further details on synthesis of "3065" 1945 6 p Additional information to Report, PB 1, "Account of Prof. R. Kuhn on '3065,' a benzil derivative." Report gives informaton on the following: (a) Further details on synthesis of 3056; (b) Synthesis of 3214 (an analogue of 3065); (c) Position with regard to samples; (d) Clinical report; [and] (e) Further information on cyclodecane pentaene. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 1, 1946-01-11 ALDRICH, R.C. Synthetic lubricating oil production in France US Naval Technical Mission in Europe Letter Report 80-45 1945 9 p This report deals with production of synthetic lubricants in two French plants, one at Lille and the other at Marseille. Processes are briefly described, and products discussed, as to yield and quality. Analysis of the products produced are tabulated and uses indicated. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 1, 1946-01-11 The report number was added from the linked document, not the BSIR citation. ATWELL, H.V. SCHROEDER, W.C. Synthetic lubricating oil plant, Rheinpreussen, Homberg 1945 17 p Description of plant and process of manufacture. The lubricating oil synthesis consists broadly of chlorinating a Fischer-Tropsch middle oil, reacting this with naphthalene ln the presence of aluminum chloride as catalyst separating the sludge, neutralising, and fractionally distilling the lube oil product. Includes some photographs of plant and equipment. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 1, 1946-01-11 BEESTON, A.W. CROSS, L.C. DRIVER, J.E. German chemical warfare activities, Paris area 1944 9 p Survey of chemical warfare plants in Paris area. No evidence of any offensive CW work (research on manufacture) carried on in France by Germans. German interest in French CW centered on DM and the Engin-Z and,to a less extent, on mustard gas and arsine. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 1, 1946-01-11 BELLAMY, L.J. NILLSON, K.T. Dr. Michael Jahrstorfer Lab. Director, I.G. Oppau, evacuated to Heidelberg 1945 2 p Describes work of Dr. Jahrstorfer on synthetic waxes, made from Montan wax extracted from lignite, with benzene and alcohol, then bleached with cromic and sulphuric acids. Used (a) as substitute for carnauba wax by esterification with glycols (b) in phlegmatising explosives, by detonising (c)for making a grease with mineral oils, which is claims.: has advantages as regards stability at high temperatures [and] (d) to obtain long chain paraffin waxes of high melting point, by ketonising followed by hydrogenation. He has also worked on the Schollar process for obtaining sugar from wood. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 1, 1946-01-11 BELLAMY, L.J. HENDRICKS, T.A. Elektrochemisches Werks Munchen A.G 1945 5 p This factory has been engaged in the production of hydrogen peroxide 82% (T stoff) and of sodium and calcium permanganate (Z stoff made from the potassium salt), as well as closely associated with the whole development of chemical fuels and explosives derived from the reaction of T stoff with hydrazine hydrate, permanganates, alcohols and easily oxidisable materials. They have also been closely concerned with the development of catalysts for use during manufacture of ingredients and during the use of the finished products. The development of production methods for hydrazine hydrate and its solutions in methyl alcohol/water mixtures are given as well as the difficulties which had to be overcome. These solutions are the basic fuels used in conjunction with peroxide and are prepared to very strict Luftwaffe specifications. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 1, 1946-01-11 BELLAMY, L.J. NILSSON, K.T. HAUGHT, J.W. I.G. plastics activity 1945 3 p Information is given on the work of the I.G. Plastics Laboratory on the manufacture of plastics and their use. The following subjects are covered: Polyvinyl acetate, Polyacrylic esters, Polystyrene, Polyvinyl chloride, Chlorinated polyvinyl chloride, Igamide (nylon), Polyethylene (lupolene), Vinylidene chloride polymer, Melamine resins, and Urea resins. "I.G." stands for the German conglomerate IG Farbenindustrie AG. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 1, 1946-01-11 BELLAMY, L.J. NILLSON, K.T. I.G. production of synthetic fatty acids 1945 3 p Brief information is riven on the synthetic fatty acids industry in Germany, dealing with production, separation and utilisation of fatty acids, other agents added to soaps to improve performance, grease manufacture and thickening agents. Brief information is also 'loan of a soap powder substitute which contained no fatty acid, but possibly made from hydrocarbons by treatment with sulphur dioxide and chlorine. This product appeared under the trade name, "Mersol". "I.G." stands for the German conglomerate IG Farbenindustrie AG. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 1, 1946-01-11 BELLAMY L.J. NILLSON, K.T. I.G. production of synthetic fatty acids 1945 3 p Description of methods of producing synthetic fatty acids, based on interviews with Dr. Keünecke. Synthetic fatty acids were produced by a similar method at I.G. Oppau, I.G. Heidebreck, Upper Silesia, end at Deutsche Fettsaurewerke Witten Ruhr. Method consists of the oxidation of paraffins (normally from the TTH Hydrogenation process on lignite) using the same technique employed by the Jasco Co. of America which held licences from I.G. A small proportion of I.G. Kaurit-Leim ( a phenol formaldehyde resin) was sometimes added to softer [sic] soap made from synthetic fatty acids, but no additives were used to improve detergent properties. In connection with the development of tropical greases, it was learned that the addition of 2% of calcium benzoate to a soda base grease made with synthetic fatty acids would render it water resistant without lowering the melting point which was about 2000C. Aluminum stearate and similar products from mixed fatty acids were made on the pilot plant scale for use in waterproofing and also as thickening agents for lubricating oils. "I.G." stands for the German conglomerate IG Farbenindustrie AG. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 1, 1946-01-11 BIDLACK, V.C. CURTIS, F. J. HARRIS, J. M. Anorgana GmbH Werk Gendorf. Chemical warfare 1945 37 p In addition to general information on Anorgana GmbH, a subsidiary of I.G. Farbenindustrie AG, technical data is given on chemicals manufactured from acetylene, processes evolved by Dr. Reppe for development of acetylene compounds, lacquers, varnishes, waxes and emulsions, pharmaceuticals, and miscellaneous items, namely, Igepon G, (a detergent) Ramasite, (a water proofing agent), Blattan, (a contact insecticide), and polystyrene. Formula charts are included for acetylene+formaldehyde, Y -butyrolactone, and acetylene+acetaldehyde. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 2, 1946-01-11 BIDLACK, V.V. Chemische Werke Albert Biebrick, near Wiesbaden 1945 6 p This report deals with resin coatings made by this plant. The coatings are chiefly phenolic resins in suitable solvents. A number of these are described. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 2, 1946-01-11 BIDLACK, V.C. and others Dr. Alexander Wacker - Gesellschaft Für Elektrochemische Industrie Burghausen, Germany 1945 30 p Report on one of outstanding German companies engaged in the manufacture of chemicals from acetylene which they produce from calcium carbide. Outlines organization, raw materials requirements, products and capacities, and pending research products. Descriptions of processes in producing: (1) Butanol and Butyraldehyde; (2) Chlorinated Hydrocarbons; (3) Alcohol Solvents; (4) Ethyl Acetate - "Etrol"; (5) Acetic Anhydride; (6) Insecticides; (7) Artificial Shellac; and (6) Polyvinyl emulsions. Contains several diagrams. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 2, 1946-01-11 BLANCHARD, KENNETH G. An evaluation of the work on antimalarials of the I.G. Farbenindustrie, Elberfeld, Germany - visited 30 May-1 June 1945 1945 20 p As in the United States, the Germans have assayed for antimalarial activity, numerous substances prepared for other purposes. i.e. dyes, insecticides, anesthetics. etc. This report discusses screening methods, clinical examination of drugs, causal prophylaxis, cure of avian infections. synthetic antimalarial drugs. and various antimalarial compounds (Endochin, Plasmochin series, Acridines, Dimeplasmin and Diapromin). CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 2, 1946-01-11 BROWN, J.S. ALDRICH, R.C. Liquid oxygen plants in France and Belgium 1945 6 p Visit in February and March 1945 to Liege, Uokange, Briey and Wittring (Saarguemines). The Germans did not use existing plants for military purposes but built special units such as at Liege and Wittring. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 2, 1946-01-11 BULLARD, R.H. Societe Belge De L'Azote 1944 7 p An investigation of conditions in a Belgium chemical plant producing various nitrogen compounds. Products mainly fertilizers, were used mostly in Belgium and little shipped to Germany. "Slow-down" and sabotage made this industry of little use to Germans. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 2, 1946-01-11 BULLARD, R.H. Societe Belge L'Azote Liege - Miscellaneous chemicals 1945 6 p Brief report on products produced and methods used at this plant manufacturing inorganic and organic chemicals. Chief raw material was coke oven gas. During the war this plant produced compressed methane gas for use as motor fuel as follows: Coke oven gas, which contains CO₂, CO,CH₄ C₂H₄H₂ and N₂ was scrubbed to remove the CO₂. Gas was then cooled to liquify the CO, CH₄ and C₂H₄, thus separating from the H₂ and N₂. The CO is removed from the CH₄ and C₂ H₄ by fractionation and the methane is compressed into cylinders for use. An original method of producing acetone consists of reacting alcohol and water over a catalyst in one step, according to the equation: CH₃ CH₂ OH + H₂O = CH₃ CO CH₃+C0₂ + H₂. Catalyst used was not disclosed. Notes on methods of producing other products are also given. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 2, 1946-01-11 CALCOTT. W.S. WHITE, L.M. I.G. Farben A.G. Bunawerk 1945 14 p Report of a visit to this plant, giving lists of raw materials purchased, products made and processes used to make them, including catalysts, temperatures, pressures, etc., capacity, source of raw materials, and raw materials and finished products on hand. This plant produced Buna S, other Bunas, and chemicals for its production, as well as utilizing by-products. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 2, 1946-01-11 CALCOTT, W.S. BOYNE, J.G. LEAPER, P.J. I.G. Farben, A.G. Leuna, Germany 1945 8 p This plant was extensively damaged by bombing. Estimated to still have a synthetic ammonia capacity of 150 T/day. Chief products made were alcohols, lubricating oils, phenols, emines, and adipic acid for "Luran.", the I.G. "Nylon", "Mersel" and "Mersolat" - soap substitutes, aldehydes, acids, etc. Processes used briefly indicated. Production figures before bombing given, and organic research program outlined. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 2, 1946-01-11 CALCOTT, W.S. I.G. Farbenindustrie Plant, Frose, Germany. Fuels and lubricants 1945 3 p This plant is primarily for the production of tetraethyl lead and ethyl fluid. It is undamaged and ready to operate. Ethyl Gasoline Corp. process used. 300 metric tons per month of tetraethyl lead made. Operation details briefly given. Management Orders filed with MIRS. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 2, 1946-01-11 CHAFFEE, C.C. ATWELL, H.V. I.G. Farbenindustrie. Mainkur -Hoechst 1945 33 p Information obtained from the plant manager, Dr. Giesler, regarding organization, principal products, manufacturing processes and lines of research; also on the crude oil demulsifying agents known as "Dismulgans". There are related processes (in German) for manufacture of: "Humectol CX (Dismulgan V), Kaurit MKF, Trypaflavin (a prophylactic for colds), Thiodiphenylamin S, Dismulgan IV and Dismulgan VII. Interesting facts, mainly production statistics are given on ocenolsulfate, melamine, maprehal (a condensation product of melamine and formaldehyde), Pollon I (acronyl plastic used for waterproofing textiles) and phenothiazine. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 2, 1946-01-11 CHINARD, FRANCIS T. and others I.G. Farbenindustrie A.G. Abteilung: Behring Werke A.D., Lahn, Germany 1945 19 p This plant is the largest producer in Germany of therapeutic antisera, vaccines, and related products. Plant is undamaged. A complete list of standard biological products made is given. Comparison of methods used for antisera with U.S. methods is briefly made. Methods of production are briefly described. Photographs are presented illustrating the technique used in obtaining infected louse material for Typhus vaccine. Stocks on hand on 4/1/45 and for comparison in 1935 and 1931 are given. Monthly production capacity is also listed. Recommendations for continued use of the plant are given. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 3, 1946-01-11 CJITTICK, M.B. SHERWOOD, T.R. French and Belgium chemical industry 1944 13 p Gives bits of information regarding French, Belgian and German chemical industries and chemists through visits to Sec. des Usines Chimiques Rhone-Poulec and Societe d'electrochimie, d'electro-metallurgic, et des Acieries electriques d'ugine in France and Comptoir Belge de'l'Azote (Cobelaz) and Union Chimique Belge in Belgium, and visits to M. Jean Lecomte at the Sorbonne and Prof. O. Dony at University of Brussels. Lists chemicals manufactured by these companies, amounts demanded and supplied to Germany, and companies affiliated with "Cobelaz". CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 3, 1946-01-11 CULLUMBINE, H. SEYDEL, PAUL V. MUNN, JAMES F. Interviews on chemical warfare 1944 15 p Interview reported with Prof. Bacq, in charge of Belgian Medical C.W. Research. Brief discussion of Prof. Bacq's experiments on physiological action of vesicants "H, PS, CN and similar agents". Interview reported with Dr. Moritz Ney, Robert Thill, Dr. Keller and Dr. D'Huart. Dr. Ney and Thill were interested in anti-gas work, Dr. Keller was chief chemist at a plant making steel casings and Dr. D'Huart was chief chemist at a plant making HE and armor piercing shells. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 3, 1946-01-11 CURTIS, FRANCIS J. I.G. Farbenindustrie A.G., Elberfeld & Leverkusen 1945 11 p Information is given on isocyanate polymers produced by these plants. Products called "Desmodurs", "Desmosits" and "Desmophens" with various suffixed letters and numbers are mentioned, preparation directions and structural formulas given. These materials are polymerized with polygols, etc. to form injection or molding plastics such as "Igamid U", which is described, or resinous adhesives such as "Polystal," used for plywood. Diisocyanates reacted with diols or other difunctional reactive groups to form infusible cross-linked products, useful as lacquers for wood, rubber, leather, paper, etc. The processes for making ethyl and benzyl cellulose and "Cellaprit" - cellulose acetate 50% water wet, are given in some detail. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 3, 1946-01-11 CURTIS, FRANCIS J. and others Miscellaneous chemicals - I.G. Farbenindustrie A.G., Elberfeld and Leverkusen 1945 53 p This report deals chiefly with the plant at Leverkusen. The Elberfeld plant is mentioned only very briefly. The products made are listed, and capacities given. Production of the following miscellaneous chemicals are discussed in some detail. a. Acrylonitrile (acetylene and nitrile) b. Phosgene. c. "Porofor N"- a product soluble in Buna giving off N₂ during vulcanization to make a superior, small pored foamed rubber. Specific gravity of the product is 0.2 - 0.6. "Porofors DB and 254" are also mentioned. d. Chlorobenzene. e. Nitrochlorobenzene. f. Diphenyl ( and polydiphenoyls). g. Chiorodiphenyl. h. Salicylic Acid. i. Sodium Salicylate. j. Phenol. k. "Tanigans" - artificial tanning agents made from waste sulfide liquor. l. "Persistol" - a water repellent, mixture of Zr 0Cl₄ and paraffin emulsified with "Igepon". Said to be as good as Zelan and wash-proof. m. "Mersolat" a suspending agent. At. Elberfeld, process and equipment for production of hexamethyletetramine is described. In appendices, the organizational set-up, processes in use, and a complete products list are given. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 3, 1946-01-11 CURTIS. FRANCIS J., and others Pharmaceuticals and insecticides at I.G. Farben plants, Elberfeld and Leverkusen 1945 127 p This report together with Report PB 248, "Pharmaceuticals at the I.G. Farbenindustrie Plant, Germany: a supplementary report", presents the complete story of pharmaceutical research, products and operations at the I.G.. Farbenindustrie plants at Elberfeld and Leverkusen. The subjects dealt with include sulfonamides and sulfones. antimalarials, remedies for tropical diseases, remedies for virus diseases, anesthetics - both general and local, antibacterial agents - penicillin as well as a new substance, dibromsalicil, described by Dr. Richard Kuhn of Heidelberg, hormones, vitamins, periston - a blood substitute, and a number of miscellaneous topics. The reports contain extensive data on Sontochin and the testing of other antimalarial, complete descriptions of such sulfonamides as Badional, Marfanil end Tibatin, methods for the preparation of synthetic oestrone, and Peristone, and finally an index of documents obtained at the I.G. Plant. Elberfeld. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 3, 1946-01-11 CURTIS, H.A. Production and uses of calcium carbide in Germany 1945 22 p Quotes from several sources regarding situation in 1936, as of May 1942, the expansion then definitely scheduled, and final production goal set by the R.W.A., and developments since May 1942. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 3, 1946-01-11 DEWEY, D.R. Wartime research on synthetic fuels: Kaiser Wilhelm Institut für Kohlenforschung US Naval Technical Mission in Europe Letter Report110-45 1945 9 p Research on the Fischer-Tropsch synthesis has been directed along the line of iso-paraffin synthesis. Good yields have been obtained at 300 atm. and 420-450°C over an alumina-thoria catalyst. Also reported are synthesis of aromatics and the use of zinc-oxide-alumina and iron catalysts. The report number was added from the linked document, not the BSIR citation. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 3, 1946-01-11 FOGLER, M.F. SMADEL, J.E. New liquid incendiary agent (CIF3) 1944 13 p Report on fluorine compound developed by Germans as liquid incendiary agent. Development of chlorine trifluoride requested by German army for use in shells against aircraft and tanks. A liquid with a boiling point of 12°C, is stable when stored in iron pressure cylinders. Substance combines with all organic and a number of inorganic compounds so vigorously that heat generated will generally cause material to burst into flame. CIF₃ not developed industrially, and probably never used by German army. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 3, 1946-01-11 FOGLER, M.F. Production of Hydrazine Hydrate, I.G. Farben, A.G., Leverkusen, Germany 1945 8 p Hydrazine hydrate produced was for jet propulsion and rocket fuels. Equipment in good condition. Capacity 60 tons/ month. Complete sets of drawings and specifications for the plant are available. The process is described in some detail and a flow-sheet is given. A 95-98% solution is prepared. Concentrated NH₂NH₂. H₂0 vapors are a little known blood poison. Leaks must be prevented, and good ventilation provided. Also acts as a skin poison. It is important to protect eyes from spray or mist of the solution. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 3, 1946-01-11 FRASER, D.S. and others Report on Alpine Chemische Werke A.G. Schaflenau, Nr. Kufstein, Austria 1945 5 p List of chemical and pharmaceutical products manufactured at these works and their uses. The principal product was aqueous hydrogen peroxide manufactured by the electrolysis of ammonium hydrogen sulphate according to the Riedel de Haen Process. The electrolysis was conducted continuously until the concentration of ammonium persulphate reached 200 gm/1. Then it was hydrolyzed in the presence of a small amount of sulphuric acid giving hydrogen peroxide. Distillation gave a product containing 2 to 3% of hydrogen peroxide, which was then concentrated by distillation to 30%. A small quantity (200 kg/day) was concentrated from 50 to 90% by a special method still under development. This procedure employed four stages of distillation operated at 50°C temp. and at 80,60,20 and 15 to 18 mm. pressure respectively. Stainless steel (V2A) or glass tubes were employed for the distillation. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 4, 1946-01-11 GARVEY, B.S. Gustave Siegal A.G.. Feuerbach near Stuttgart 1945 5 p Description of processes of producing aluminum hydroxide pigment and silicate catalysts. The hydrated alumina pigment is produced by large scale titration of aluminum sulfate solution with sodium carbonate solution. Pigment reported to be as good for reinforcement as channel black and better for color. Research on magnesium silicate was incomplete although it is said to produce di-, tri-, and tetra- mers of isoprene or butadiene. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 4, 1946-01-11 GORDON, K. I.G. Farbenindustrie, Frankfurt; chemical warfare 1945 2 p Brief description of new poisonous gas, a new material which goes through all known gas masks. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 4, 1946-01-11 GORDON, K. Statistical data - I.G. Farbenindustrie - Hochst 1945 3 p This plant, having suffered no serious damage from bombing, is probably the largest potential producer of chemicals and drugs in Germany. The main items produced are: Organic and inorganic chemicals, organic chemicals from acetylene, plastics, textile dyes, azo colours, photographic dyestuffs and colours, textile auxiliaries, leather auxiliaries, emulsifiers for lubricants, anaesthetics, sedatives, hormon preparations, vitamins, chemotherapeuticals and antiseptics, synthetics, narcotics, serums and vaccines, veterinary pharmaceuticals, insecticides and fungicides. Paper lists prinicipal developments of war importance that have been done at this plant. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 4, 1946-01-11 GORMLEY, W.G. Hydrogen peroxide - Electro Chemische Werke Hollriegelskreuth 1945 17 p Process of concentration of thirty-five (35) percent solutions to eighty (80) percent or higher, which makes possible the use of peroxide as an efficient fuel in submarines, rockets, rocket aircraft, etc. is explained in this report. Operating details of large scale plant for production of this high test peroxide at Hollriegelskreuth are given. Details of this process were given to the Japanese. Also a process for producing hydrogen peroxide economically through an electric discharge is outlined, including some costs of production. The third part of the report reviews German peroxide production potential. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 4, 1946-01-11 HAENSEL, VLADIMIR Kaiser Wilhelm lnstitut für Kohlnforschung, Mulheim 1945 16 p Report on equipment and personnel of chemical laboratories and summary of research projects under investigation. A major research project has been the experiments on the Fischer -Tropsch synthesis, which was carried out partly in small glass or steel reactor tubes erected in an inclined position on normal laboratory benches and partly in rather semi-technical steel apparatus in the technical laboratory. Experiments have been conducted with ruthenium catalysts, cobalt catalysts, medium pressure catalysts, iron catalysts, and reports on methods and results in these experiments are given in this report. Other investigations included: work on iso-synthesis, aromatization, olefins in Fischer-Tropsch products, methylation, miscellaneous reactions employing aluminum chloride, preparation of alpha-olefins. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 4, 1946-01-11 HAENSEL, VLADIMIR COTTON, ERNEST Plant of Chemische Werke Huls, Huls, Germany 1945 8 p Description of a synthetic rubber plant using, as one of the principal materials, acetylene manufactured from natural gas. The plant was found practically intact when inspected April 11, 1945. The acetylene, ethylene oxide, acetophenone, acetylene hydrogenation and ethylbenzene plants and processes are described generally. Ethylene oxide is processed to produce ethylene glycol and di-glycol is produced by recycling the glycol through the same reactor. Diethylbenzene is shipped to aviation blending stations under the code name of "Kybol". CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 4, 1946-01-11 HALL, C.C. POWELL, A.R. Plant of Klocknerwerke, A. G. Castrop-Rauxel, Germany 1945 12 p Description of Fischer -Tropsch synthetic oil plant, of the unit for the separation of coke-oven gas into hydrogen, ethylene, etc. and of a large "Koksofengas Spaltung Anlage", or a plant for the thermal cracking or reforming of coke-oven gas at normal pressure. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 4, 1946-01-11 HALL, STANLEY A. Insecticides and fungicides at the I.G. Farbenindustrie plant, Hochat. 1945 15 p Report of investigation of insecticides produced at Hochat laboratories, particularly of a detailed investigation of "Gix", containing as an active ingredient 60% of 1-trichloro-2, 2-bis (p-fluorophenyl) ethane. Members of Hochat staff interpreted their results, obtained by generally poor testing methods, as unduly favorable to the performance of "Gix" as compared with DDT. "Nirosan" containing 1,3,6,8.-tetranitrocarbasole as active ingredient. "Dizan" containing N-(phenyldiazo) piperidine. Fungicides investigated: NAME: 23171W ACTIVE INGREDIENT: 1-thiocyano-2, 4-dinitrobenzene; NAME: Brassicol and Tritisan 5 ACTIVE INGREDIENT: pentachloronitrobenzene; NAME: Bulbosan ACTIVE INGREDIENT: 1,3,5-trichloro-2,4,6-trinitrobenzene; NAME: Brassisan ACTIVE INGREDIENT: 1,2,4-trichloro-3,5-dinitrobenzene; CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 4, 1946-01-11 HALL, STANLEY A. Insecticides, insect repellents. rodenticides and fungicides of I.G. Farbenindustrie, A.G., Elberfeld and Leverkusen. Germany 1945 48 p The subjects covered in this investigation comprise primarily insecticides and mosquito repellents. but also include rodenticides, fungicides and one organic miscellaneous chemical. As much of the research at the Elberfeld and Leverkusen laboratories has been closely interlocking, the results of investigations in these two places have been combined in this report. The German scientists have had an active interest in the field of insecticides and insect-repellents. but it is difficult to evaluate their results short of subjecting them to experimental tests in the U.S. Two organic fungicides and two new organic rodenticides were uncovered which may have some value. A new non-toxic organic compound for testing the germination of seeds was uncovered. This may be of use to seed specialists. This report should be read in conjunction with Off. Pub. Bd., Report, PB 240, "Manufacture of insecticides, insect repellents, rodenticides. I.G. Farbenindustrie, A.G.: Leverkusen and Elberfeld". CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 4, 1946-01-11 HALL, STANLEY A. Report on insecticides manufacturers in Hamburg 1945 2p Lists the insecticide manufacturers, relating the condition of the factory of each and what each produoes. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 5, 1946-01-11 HANDLEY, E.T., and others The Leverkusen Works of I.G. Farben - Miscellaneous chemicals 1945 50 p Report deals with the Central Research Laboratory, and Buna N production at this plant. Documents on "Igetex," "Regenerat" plasticizers, and research reports of plant personnel etc. were removed. Description of the Laboratory is given in considerable detail with a list of personnel. A pilot Plant "continuous tube polymerize in which it was claimed that reactions had been carried out to 60% in as little as 15 minutes" is described in detail. Formulas and reaction conditions for Buns N rubbers made at this plant are tabulated. Equipment and processes are described. Production data and coat calculations are presented. The rubber testing and polymer evaluation work of the laboratory is described in considerable detail, and the tests performed are discussed. Polymerization research at this plant is outlined, and a list of materials tested for polymers and copolymers is given. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 5, 1946-01-11 HANDLEY, E.T., and others Synthetic rubber plant, Chemische Werke Hüls 1945 125 p Part I. gives information on condition of plant, personnel, general description of the plant and outline of operations. Part II. contains technical information. Hüls is the only plant in Germany which manufactures acetylene by the electric are cracking of hydrocarbon gases. Acetylene is converted to acetaldehyde and butadiene is produced from the latter by the so-called aldol process. For styrene production, benzene is obtained from coal tar plants in the Ruhr and ethylene is produced at Hüls. Butadiene and styrene are polymerized continuously in emulsion to Buns. S. Four types of Bun. S have been produced at Hüls Buna S, Buns SS, Buna S[R] and Buna S3. Related organic chemicals including rubber softeners are also manufactured. Details of the butadiene, sytrene, and polymerization processes were obtained. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 5, 1946-01-11 HASCHE, R.L. BOUNDY, R.H. I.G. Farbenindustrie A.G. 1945 7p Description of capacity and production at plant mining and briquetting brown coal and generating power for the second largest calcium carbide plant in Germany. Products of chemical plant were, Calcium carbide, calcium cyanamide, aoetylene, acetaldehyde, acetone, Acetone was produced by a vapor phase catalytic method in accordance with the following equation. 2 CH₃C00H → (CH₃)₂CO + H₂0 + CO₂ CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 5, 1946-01-11 HASCHE, R.L. BOUNDY, R.H. The Oxo plant, Ruhrchemie Oberhausen-Holden 1945 4p The Oxo unit is adjacent to the Ruhrchemie plant at Oberhausen-Holden; a separate company called the Oxo Gesellschaft was formed sometime after 1938, and the stook is jointly held by Ruhrchemie, the I.G. and Henkel. The process is for the production of aldehydes and acids by the interaction of olefines and water gas, the products forming a very valuable class of detergents for synthetic fibres, being non-acid and non-alkaline. The process is briefly described and there is a sketch of the unit attached. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 5, 1946-01-11 HOEFFDING, O. Statistics of German production, consumption and stooks of liquid fuels, rubber and strategic chemicals 1945 16 p Pamphlet gives monthly statistics up to the fall of 1943 on the German supply situation with respect to liquid fuels, crude and synthetic rubber and selected strategic minerals. Included in liquid fuels are aviation gasoline, motor transport gasoline, motor transport diesel oil, diesel oil for the Navy, fuel oil for the Navy, production of aviation gasoline, motor transport gasoline production, diesel oil production, crude oil production in greater Germany. Figures on rubber include a survey of Buna and crude rubber supply position and crude rubber allooation quotas. Included in the figures on chemicals are toluol supply position, trinitrotoluol allocations, propellants position, propellants and explosives production and consumption by Wehrmacht, chemical warfare agents, T-stoff normal and T-stoff special. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 5, 1946-01-11 HORACK, H.M., and others Pharmaceuticals and insecticides at the I.G. Farbenindustrie plant, Hochst a. Main 1945 38 p This report deals with the activities of the pharmaceutical department of the I.G. Farbenindustrie plant at Hochst a. Main, Germany. The subjects discussed are the chemotherapy of infections and neoplastic diseases, analgesics, vitamins and other pharmaceuticals. Appendices contain lists of the scientific staff of the plant, pharmaceutical preparations made at Hochst, two articles on Rutanol and Nitroacridine (chemotherapeutic remedies developed for typhus), and photographs of the plant. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 5, 1946-01-11 HORNE, W.A. JONES, J.P. Fischer Tropsoh Unit, Leipzig Gas Works 1945 9p Description, diagram and illustrations of the Fisoher-Tropech plant at the gas works of Leipzig, Germany, being installed for the purpose of enriching the town gas for the city of Leipzig and at the same time to yield much needed recoverable liquid and solid hydro-carbon products. The plant was of usual design for operation at low pressure on cobalt catalyst. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 5, 1946-01-11 HOWARD, THOMAS W., and others Pharmaceutical targets in southern Germany 1945 17p This report presents information on products and processes at the following chemical companies: Schiring A.G., Berlin; Luitpolot-Werk. Munche-Thalkirchen; Alpine Chemische A.G. Kufstein, Austria; Chemische Fabrit Aubing. GmbH. Anbing near Munchen; F. Hoffman-La Roche A Co.. Grensach Baden. Schering research projects included work on hormones, new sulpha drugs known as Pyrimal and Globucid and unsuccessful attempts to produce penicillin and synthesise vitamin A. Luitpold Werk is a small factory manufacturing enzymes. Alpine Chemische A.G., owned by the Sobering company, mixes and packages pharmaceutical products. Synthetic operations at this plant are the manufacture of salicylic acid from phenol by the Kolbe process, purification by sublimation and manufacture of pure sodium salicylate. Chemische Pabrik Anbing, GmbH, owned by Schering and A.O. Hayl made the following synthetic products: acetylsalicylic acid, salicylic acid, salol, acetanilid, sulphonal, methylsulphonal, lactylphenetidine, acetanilid, veterinary products. F. Hoffman-La Roche and co., A.G. produced a variety of chemical products. A list of detailed chemical procedures obtained by investigators is given. The word "targets" in the titles refers to targets for exploitation by Allied intelligence forces. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 5, 1946-01-11 HUNTER, RALPH M. Dessauer Werke F[ü]r Zucker Und Chemische Industrie, Dessau - Alcohol 1945 4p This plant produced alcohol from wood. Maximum monthly production was 480,000 liters 94% ethanol and 1,600,000 kg. lignin (50% solution). Albuminous material produced was first used as stock feed, later refined for human consumption. Lignin was sold for use in plastics, or as used for fuel. The process is briefly described. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 5, 1946-01-11 HUNTER, R.M. The electrochemical industry, Burchausen Area 1945 38p Description of plant, equipment and processes at the following chemical factories: I.G. Farbenindustrie, Gendorf, producers of chlorine, hydrogen, ethylene, acetylene; Alexander Wacker Gesellschaft für Eleotrochemische, Burghausen, producer of chlorine, acetylene chlorination, calcium carbide, ferrosilicon; I.G. Farbenindustrie, Gerethofen, producer of chlorine and metallic sodium; Suddeutsche Kalkstiokstoff Werke A.G., Trostberg, producer of cyanamide; Vereinigte Aluminum werke, Ranehofen; Vereinigte Aluminum werke, Töging; Vereinigte Aluminum works, Pocking. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 6, 1946-01-11 HUNTER, R.M. I.G. Farbenindustrie A.G., Leuna - Nitrogen fixation plant 1945 5p The synthetic ammonia plant is described in some detail. The apparatus is shown in a diagram, and the process outlined. Catalyst composition is also given. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 6, 1946-01-11 INTERROGATION OF Dr. Muller Conradi, I.G. Farbenindustrie - Tetra ethyl lead-luboil-iso-octane 1945 6p Dr. Conradi, factory manager of the Oppau plant of I.G. Farben, was questioned on the following subjects: (1) Tetra Ethyl lead production in Germany and Japan. (2) Hydro-reflation plants in Japan. (3) Methods of producing Synthetic Luboil. (4) Experimental work on paraffin waxes to be oxidized for the manufacture of soap. (5) Method of producing iso-octane. [and] (6) Method of producing Oppanol, a polyisobutylene. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 6, 1946-01-11 KERN, J.G MURRAY, R.L. SUDHOFF, R.W. I.G. Farbenindustrie A.G., Ludwigshafen and Oppau, Wehrmachlt items 1945 69p Detailed report on processes and equipment in the mannfacture of items for the Wehrmacht and in research undertaken for them at these two plants. Products produced at Oppau were: 1. E.T. 110 Tanol. 2. E.T. 300 (C1-100). 3. Lubricants. 4, D.H.D. Benzine. 5. Paraflow. 6. Test motor fuels. 7. Wax 41a. 8. I.G. Wax S. 9. Self-igniting carbon or coal. 10. GM-1. 11. Dry ice. 12. Opponal B200. 13. Silical gel. 14. Hydrogen. [and] 15. Zurdol. Products produced at Ludwigshafen included many organic and inorganic chemicals among them: smoke acid (Nebelsaure): smoke powder; sodium sulfite; sodium cyanide; phosgene; liquid HC1; liquid ammonia; ethylene glycol; Glysentin. diethylene glycol; nitroalkanes; [and] organic glass. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 6, 1946-01-11 KERN, J.G. MURRAY, R.L. SULHOFF, R.W. Rohm and Haas, Darmstadt, Germany 1945 19p Visit in June 1945 to this plant. The types of products are pharmaceuticals, leather assistants and tanning agents, textile assistants, washing compositions, and plastics. Plastics are the most important, and a detailed discussion follows regarding plexiglas, plexigum, rohagite and other plastics. A list of Rohm and Haas products is given by name and a summary of sales from 1939 through 1944. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 6, 1946-01-11 KLEIDERER, IRVIN C. RICE, JUSTUS H. CONQUEST, VICTOR Pharmaceuticals at the I.G. Farbenindustrie plant - Elberfeld, Germany: a supplementary report 1945 141p This report, together with Report PB 237, "Pharmaceuticals and insecticides at I.G. Farben plants, Elberfeld and Leverkusen," presents the complete story of pharmaceutical research, products ,and operations at the I.G. Farbeninduetrie plants at Elberfeld and Leverkusen. The subjects dealt with include sulfonamides and sulfones; antimalarials; remedies for tropical diseases; remedies for virus diseases; anesthetics - both general and local; antibacterial agents - penicillin as well as a new substance, dibromsalicil, described by Dr. Richard Kuhn of Heidelberg; hormones; vitamins; periston - a blood substitute; and a number of miscellaneous topics. The reports contain extensive data on Sontochin and the testing of other antimalarials, complete descriptions of such sulfonamides as Badional, Marfanil and Tibatin, methods for the preparation of synthetic oestrogen, and Peristone, and finally an index of documents obtained at the I.G. Plant, Elberfeld. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 6, 1946-01-11 KRAUSEN, R.S. Dynamit AG., Duneburg - Substitutes for nitrated types of explosives 1945 2p Some information is given about Murol and Mansatz, two new tyres of explosives, which are substitutes for T.N.T. The plant Dynamit A.G. used the Barmar nitric acid process. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 6, 1946-01-11 LEAPER, P.J. I.G. Farbeninduetrie A.G. Plant Hoechst/Main 1945 9p Report on organic chemicals made in this plant. "Geserol" is I.G. [Farben] trade name for D.D.T. "Fluor-Geserol" is difluorodiphenyltrichloroethane, in which 2 F atoms take the place of Cl atom in the benzene nucleus. Also known as "GIX." Has lower m.p. than D.D.T., makes better emulsions and improved insecticidal properties, especially against mosquitoes. Detailed directions, flow sheets, etc. are in documents filed with MIRS. Organic chemicals and plastics manufactured are listed. Production of butanol or butyraldehyde by reduction of crotonaldehyde under differing conditions is mentioned, and methods are in documents filed with MIRS. "Uresin B" - a nitrocellulose plasticizer and emulsifier for other plastics was made by reacting butanol with urea and condensing with formaldehyde. "Igepons" - Sodium sultanates of aliphatic glycols are mentioned. Tanning materials called "Tanigans" - Complex resins formed by condensing a phenolformaldehyde reaction product with a complicated naphthalene sulfonic acid was prepared in a quantity of about 6000 tons in 1944. Production of glycerine from cheap sugars by hydrogenation is described. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 6, 1946-01-11 LEAPER, P.J. I.G. Farbenindustrie Mainkur, Frankfort on Main. 1945 5p Report of visit to plant chiefly engaged in dye manufacture including sulphur colors, vat dyes, and azo dyes. Largest non-dye item was melamine which the plant used for the manufacture of plastic and lacquers, and also shipped to other I.G. {Farben] plants. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 6, 1946-01-11 LEAPER, P.J. I.G. Farbenindustrie Wolfen Farbenfabrik Wolfen Near Halle - Miscellaneous chemicals 1945 8p Rather superficial examination of a small section of a heavily bombed chemical plant. Plant was completely shut down at [the] time. Principal products were inorganic and organic chemical compounds, dyes, and nitrogen products. Some chemical warfare materials were produced; also detergents and insecticides. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 6, 1946-01-11 LEAPER, PERCY J. Schimmel & Co., Miltitz near Leipzig - Pharmaceutical production 1945 3p Report on operations during war period of Schimmel and Co., the largest plant in Germany devoted to the manufacture of synthetic aromatic chemical and natural products for perfumery and cosmetic industry, which included work on insecticides, some fractionation work such as refining of fusel oil, and manufacture of synthetic Menthol and essential oils (for [the] Wehrmacht), a synthetic pharmaceutical, Menthyl Valesianate, used in air and sea sickness, and a number of synthetic chemicals, including Methoxy phenyl cinnamic acid, an intermediate for a tracer chemical used in making X-ray photographs of the gall bladder. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 6, 1946-01-11 LIEBHAFSKY, H.A. Hydrazine hydrate (B-stoff) as a fuel 1945 3p Brief discussion of the use of hydrazine hydrate as an adjunct to the combustion process in the manufacture of hydrogen peroxide. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 7, 1946-01-11 LIEBHAFSKY, H.A. The manufacture of hydrogen peroxide 1945 3p Brief description of the production of hydrogen peroxide at the Elektrochemishce Werke by the Pietzsch-Adolph process. "T-stoff" seems to have been derived from thymiol in three grades - TN for general use; TS for submarines; and TSS for torpedoes. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 7, 1946-01-11 PB317 LIVINGSTON, C.S. LEWIS, D.T. RECHEL, E.R. Dynamit A.G. plant at Troisdorf 1945 11p Description of manufacture of high explosives (tetryl and P.E.T.N.) and of initiators and detonators (lead azide, lead styphnate, gasless delay fuze powder), filling method and electric match heads. This report also includes a description of plastics moulded and manufactured and of the application of plastic materials to the manufacture of explosives. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 7, 1946-01-11 McAULAY, J. and others CIOS Trip No.215 - 17th May to 12th June 1945. Information on production of hydrogen perxoide - hydrazine hydrate and calcium permanganate 1945 7p Detailed report on methods of industrial production of hydrogen peroxide, emphasizing high concentration (80-85%), quantity production, and improved methods, especially direct synthesis through electrical discharge; hydrazine hydrate; calcium and sodium permanganate. CIOS stands for Combined Intelligence Objectives Subcommittee which was an organization working under the allied headquarters to exploite German industry after World War II. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 7, 1946-01-11 McCARTHY, C.L. Adrenochrome - an interview with Dr. Demater Buchnea 1945 4p Description of the method of preparation of adrenochrome from adrenaline a drug which acts as a blood catalizer of sugar in the treatment of diabetes. No information on the clinical use of adrenochrome is given, although it is stated that it is not a substitute for insulin but acts as an adjunct to it. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 7, 1946-01-11 McCARTHY, C.L. Chemical Research Laboratory of Dr. Bruno Bottcher, Kronach, Bavaria 1945 2p Brief description of the porcelain and plastic factories in which Dr. Bottcher is interested and of the chemical laboratory which he maintains for research on medical activities of the bi-products of the factories. Gives structure of one of the compounds of a new class of sulfurized organic compounds called "Trithjones". Other research activities are listed, namely: purification of Adrenochrozme, purification and concentration of Penicillin by electro-osmotic diaphragm process, new method for production of plastics from Xylol (patent applied for) and a "one-step" method for production of synthetic rubber. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 7, 1946-01-11 METCALF, H.B. Report on Hamburg Serum Works at Hamburg 1945 2p Lists the preparations made and the monthly production figure of each. Relates the recent history of the works, concluding that they are unimportant unless properly supervised. Samples were taken of the tetanus unconcentrated horse serum, the potency of which seemed high. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 7, 1946-01-11 MOIR, G.A.A. WALKER, A.S. HARRIS, J.M. I.G. Farbenindustrie, Bitterfeld; description of plant and production 1945 3p Brief description of the organization, personnel, plant production, and research carried on at this plant are given. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 7, 1946-01-11 MOIR, G.A.A. and others Interrogation of Dr. Kiebert, Dr. Redies, and Dr. Konrad of the I.G. Farbenindustrie (Bayer & Co.) at Leverkusen (target Nos. 8/12, 22/2, 24/1) (production of chlorine, miscellaneous chemicals, and insecticides) 1945 3p The plant is divided into 4 sections: (a) inorganic products, including chlorine, etc., (b) intermediates, including polymerization to Buna S and N, etc., (c) dyestuffs, including insecticides, and (d) maintenance, packing, etc. Subjects of special interest were synthetic rubber research, centralized at Leverkusen under Dr. Konrad; hemical warfare, charcoal, hydrazine (produced by a special methods and believed to be used in connection with rocket bombs) and research amongst the following: Lauseto and Lausito-Neu, insecticides, and two products not yet produced which are resistant to fungal action and suitable for use in marine paints, new tanning products, new fungicides for impregnation of textiles, leather, and wood, Sontochin, and a nylon type substance. The term "target" in the title refers to facilities slated for exploitation by allied investigators following World War II. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 7, 1946-01-11 MOIR, G.A.A.and others Interview with Dr. Klebert, [Dr.] Redies, and Dr. Konradi: synthetic rubber [and] chemical warfare 1945 4p Brief description of the plant and methods used at the I.G. Farbenindustrie plant at Leverkusen are given. Work here dealt with synthetic rubber, chemical warfare agents, such as hydrazine, insecticides, such as Lauseto and Lauseto-neu, and drugs, such as Sontochin. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 7, 1946-01-11 MURRAY, H.L. Gebr. Giulini GmbH, Ludwigshafen am Rhein 1945 6p Report of production processes and capacities for the following products: Al₂O₃; crystal soda (Na₂CO₃ 10H₂O); calcined Al₂O₃; hydrate of alumina; quicklime; sodium aluminate; gas purification Fe₂O₃; aluminum sulfate; potassium alum; ammonium alum; ammonium superphosphate; potassium ammonium superphosphate; sodium fluo-silicate; sodium phosphate. The key product of Giulini's operation is the production of Al₂O₃ from bauxite by a combination of the Bayer and Pyrogen processes. Economics were clained for this method, viz: (1) Na₂SO₄ was cheaper than Na₂CO₄. (2) The SO₂ could be recovered in the form of H₂S0₄. (3) The NaOH produced in the Pyrogen process could be used in the Bayer process. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 7, 1946-01-11 OWENS, J.H. I.G. Farbenindustrie Leunawerke, Leuna 1945 1p This report consists of a list of office records removed from the files of the Leuna Werke of the I.G. Farbenindustrie, for the years 1935 through 1944. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 7, 1946-01-11 PECK, R.G. COTTON, ERNEST Von ELBE, GUENTHER Uhde Gesellschaft Für Hochdrucktechnik, Dortmund and Bowinghausen, Germany 1945 2p Report on Friedrich Uhde, an independent chemical engineer until forced to combine with I.G. Farbenindustrie, and on his pressure research laboratory and engineering offices. Only development he discussed was the reaction of methane and high pressure (5000 ats). CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 7, 1946-01-11 PHELPS, H.J. The N.V. Organon Pharmaceutical factory, Oss, Holland 1945 27p This is a report of a visit to the N.V. Organon Pharmaceutical Factory at Oss, Holland. This factory had been under the control of Schering of Berlin throughout most of the occupation period, and had been an important center of manufacture for this concern after the bombing of their plants in the Berlin area. The report discusses new developments in vitamin, anti-louse powders, antibiotics, and antimalarials. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 8, 1946-01-11 PHILIPPE, C.D. CHURCH, M.G. RANSOM, D. Belgian plastic, industry 1945 21p Three reports are included under this heading. I. Interview with M. Leon Wangler. He was the agent in Belgium for several German producers of molding powders. Brief statements are given regarding the manufacturers of the products with which he was familiar. II. Interview with M. Julian Linet, director and manager of Professional Group of Moulders in Belgium. Discusses chiefly this groups activities under German occupation. III. Interview with M.F. Schryvers, head of Plastics Section of the Office des Produits Chimiques in Brussels. This interview deals also with conditions during German occupation. A list of Belgian moulders with capacity and specialties is given in an appendix. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 8, 1946-01-11 PRYOR, M.G.M German plastic developments 1945 3p Visit to Homogenholzwerk "Holig," a factory financed by F. W. Brugmann and Son at Baiersbronn, the factory being new and never having been in production. Among the processes and products were: Homogenholz (wall board); moulded products; low-density material called "Schaum-holz"; materials for stabilized skins including "Tronal" made of layers of fine glass fabric impregnated with a phenolic resin; and other resins. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 8, 1946-01-11 QUIRK, R.N. C.I.O.S. investigation of Ruhr synthetic oil, etc. plants; preliminary progress report 1945 9p A brief description of the condition and work carried on at several plants interested in synthetic oils, etc., is given. A brief summary is also given of the technical work carried an, such as; Preparation and purification of synthesis gas; Catalyst ovens; Catalysts; Method of operation of the process; The "0 x 0" process for the treatment of C₁₂ - C₁₇ olefines to produce aldehydes; Coal hydrogenation; The Pott-Broche process and the use of pitch; Vapour phase hydrogenation; The D.H.D. process for dehydrogenation napthenes to the spirit to aromatics; Use of propane and butane; Carbonisation and gasification; Lurgi pressure gasification process; Krupp-Lurgi low temperature carbonisation process; Brown coal low temperature carbonisation by the so-called "Spurgas" process; Coke ovens; Hard coal tar, and Brown coal tar. CIOS stands for Combined Intelligence Objectives Subcommittee which was an organization working under the allied headquarters to exploite German industry after World War II. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 8, 1946-01-11 RICHARDSON, R.E. C.R. Boehringer Sohn, Ingleheim an Rhein, Germany 1945 7p A brief report on this pharmaceutical firm discussing products and specialty pharmaceuticals. It is stated specifically that antimalarials were not made. In normal times, Boehringer extracted theobromine from cacao wastes, which as methylated to the trimethyl derivative, caffeine. Boehringer production of synthetic caffein was made by the standard Traube synthesis. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 8, 1946-01-11 RICHARDSON, R.E. and others I.G. Farbenindustrie A.G., Hochst am Main 1945 84p The Hochst plant, manufacturers of organio and inorganic chemicals, plastics and dyes, is described in some detail. This includes a description of the Chlorine and Methane Chlorination Plants and the Acetaldehyde Division. Processes are outlined for the production of sodium sulfide, manochloroacetic, sulfuric, and chlorosulfonic acids, synthetic tanning agents, vinyl acetate, polymers from vinyl acetate, the "Polyurethanes," also known as "Superpolyamides" and also (debatedly) "Nylons," synthetic carbazole, used for dyes and insecticides, and glycerogen, a substitute for glycerine. Insecticidal compositions made at the plant are listed. Tables show properties, compositions, etc. of acid proof cements. Information secured on the commercial applications of vinyl polymers in glues, paints, food preserving safety glass, cloth impregnation, artificial leather, and extruded tubing is given. There is also some information about pharmaceuticals and medicinals made at Hochst and their application. Photographs and diagrams are scattered through out the report. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 8, 1946-01-11 RICHARDSON, R.E. and others I.G. Farbenindustrie A.G., Hochst am Main, Germany - Wehrmacht items, miscellaneous chemicals 1945 48p Information is given on the following products; 1. Aluminum chloromethyl - a mixture of AlCl₂HG₃ and A1C1(CH₃)₂ (method of preparation given). Use - substitute for phosphorus, and as a Griguard agent. 2. Nitrous Oxide - used as fuel booster for planes. 3. Luminous paint pigment. 4. Smoke screen agent. 50-50 wt mixture of chlorosulfonic acid and sulfur trioxide. 5. Tetranitromethane, an explosive. Continuous process of preparation from acetylene is given in some detail. Lab. production of 10 kg/day attained in excellent yield. Properties described. 6. Infra-red camouflage dyes. 7. Mustard gas protectives. Three promising compounds are reported. 8. Products glowing in u.v. light if exposed to mustard gas. 9. Jet propulsion fuels. Diketene plant is described. 10. Bullet-proof glass. 11. Foodstuff preservatives. Basic idea was to coat foodstuffs with a polyvinylacetate film. 12. Anti-tank mines. 13. Self igniting cushion for landing field defense, to ignite on contact with airplane wheels. 14. Fire extingusher. Chlorobromomethane plant and process described, 15. Black powder substitute. Tetranitrocarbazole and tetranitrodiphenylaminesulfone sodium picrate and trinitro-N-ethylaniline. 16. Explosive intermediate. (H₂C =N-SO₃K)₃ called "Weissalz." 17. Products to prevent radar sound [sic] wave detection of U-boats. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 8, 1946-01-11 SCHADE, H.A. FORAN, E. ALDRICH, R.C. The Fischer-Tropsch process n.d. 25p I. Inspection of Fischer-Tropsch Plant at Harnes (Lille) France. Capacity 48 tons/day. Producing 36 tons/day (288 U. S. bbl.) due to Co shortage. Produces gasoline of octane rating - 50. 25% of product is diesel fuel of very good quality - octane no. of 90 or above. Heavy wax made is used in paints, varnishes, and polish. Butane gas is bottled at 300 p.s.i. for gas driven autos. Process is described in considerable detail. Design of cooling system of the reactors is discussed. Yields are (volume %): gasoline 60, diesel fuel 22, solid wax 10, gaseous products 8. II. Translation of prisoner of war, Ernst Nagelstein's report on FischerTropsch Process with special consideration of the Lutzkendorf Plant of the Wintershall Co. Discusses selection of feedstock and site, describes the process, and lists industrial and scientific concerns interested in the development of the synthesis. Discusses possible developments of the process. III. Manufacture and regeneration of catalyst. This is discussed in home detail. Commodore Schade was head of the Naval Technical Mission in Europe. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 8, 1946-01-11 SCHATZEL, R.A. WHITE, W.L. Hackethal Dreht Und Kabelwerke A.G., Hanover - Miscellaneous chemicals 1945 11p This was one of the prinicipal manufacturers of bare and insulated cables in Germany. Plant considerably damaged. Brief description of equipment and processes in rolling mill, enamelling, rubber and plastics insulating. Formulas and mixing procedure given for insulating compounds. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 8, 1946-01-11 SCHATZEL, R.A. WHITE, W.L. I.G. Farbenindustrie Laboratory, Leverkusen (miscellaneous chemicals) 1945 9p This report is a follow-up to check on specific products mentioned in another report. "I-Gummi" is a thermoplastic with good strength narrow temp. range.[sic] It is a long chain polyster of adipic acid and di-isocyanate, with glycerine and glycol (1:30 on mole basis). Formulas for various plasticizers used as Buna S softeners are given. A short description of various Bunas (12 of them) is given, including co-polymer ratios and some physical characteristics. Bunas suitable for cable insulation are discussed. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 9, 1946-01-11 SCHWARZ, EUGENE E. Medical supplies plant of Drs. Degan and Kuth, Duren 1945 5p Report of investigation of successful bombing of factory making dressing materials, bandages and cotton, ointments, sulfonilamide, and certain cardiaca and Valeriana preparations. No documents or supplies found. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 9, 1946-01-11 SEYDEL, PAUL V. SEEMILLER, J.C. Chemical installations in the Cologne Area 1945 23p Plants were visited to obtain basic information on the materials being manufactured. I. Deutsche Gold - Und Silberscheideanstalt Werk, Knapsack, produced Cl, Na, some CaCl₂ and heat treating salt mixtures. Processes and equipment described and some cost data given. II. Sachtleben, AG, Offices. List of correspondence files found in premises on various chemicals given. III. A.G. für Stickstoffdünger Fabrik produced CaC₂, CaCN₂, acetic acid, acetaldehyde, acetone, acetic anhydride and ferrosilicon. Plant considerably damaged. Equipment and processes briefly described. IV. Rheinische Friedrich-Wilhelms-Univeristy. V. Deutsche Gold - Und Silberscheideanstalt, Werk August Wegelin, produced carbon blacks for rubber, paper, cement, paints and other purposes. Capacity 10-12 tons per day. VI. C.F. Boehringer and Sons Offices. VII. Westdorp and Wehner made glass photographic plates. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 9, 1946-01-11 SKEY, A.J. NIELSSON, K.T. Dr. Julius Walter Reppe acetylene chemistry 1945 2p ref discussion of the following developments: 1. Reduction of acetylene requirement for butadiene 2. Development of synthetic blood plasma - Periston . 3. Development of the tackifier, Koresin, a polymerized isobutyloxysterol, for Buna. 4• Development of Densodrin, polyvinyloctodecylether, for Leather treatment. 5. Production of cyclopolyolofines from acetylene. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 9, 1946-01-11 SMADEL, JOSEPH E., and others Chemical Institute of Phillips University - University of Marburg 1945 8p Reports interviews with 3 members of the chemical faculty. Indication of experimental work on polymerization of alkalene oxides. Information about use of H₂0₂ (called "T-Stoff") in 60-85% strength for use in torpedoes briefly mentioned by Dr. Wilhelm Jost. Prof. Hans Meerwein stated he found new catalysts to convert pinene to camphene en route to synthetic camphor. These are thoric or tungsten acids an used at 180°C. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 9, 1946-01-11 SMADEL, JOSEPH E.,and others Institute für Fleckfieber und Virusforschung des O.K.H. 1945 16p History of this institute for spotted fever and virus research; description of present buildings, staff, typhus vaccines, animals available for laboratory use and laboratories. Techniques of production of louse typhus vaccine, mouse lung typhus vaccine, yolk sac typhus vaccine, yellow fever vaccine, and rabies vaccine are described. Appendices include an analysis of typhus vaccines prepared at the institute and a list of articles by Or. Herman Ever who has done much investigation in virus diseases and developed a rapid aggluturation test discussed in this report. Also included in this report are the description of a laboratory at Schwazenfeld and an underground hospital at Nürnberg. Oberkommando des Heeres (O.K.H.) was the German High Command of the Army. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 9, 1946-01-11 SMADEL, JOSEPH E. Interview with Dr. Engelbertz of Chemische Fabrik Greisheim Elektron (I.G. Farbenindustrie - Greisheim) 1945 4 p Plant produces, intermediates for dyes, pharmaceuticals and explosives, electrodes of carbon, flotation chemicals such as Na-,K-, C₂H₅-,isopr-, bu-, and bz-xanthates, (K-ethyl-xanthate is oxidised to the disulphide (dixanthagen) which is used to impregnate clothing for control of body 110e), "bonderizing chemicals," paint and varnish dryers, metallic potassium (used as a catalyst for buna polymerization), boron carbide (used for abrasives), and welding gases and equipment. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 9, 1946-01-11 SMADEL, JOSEPH E. Laboratory studies of typhus vaccines prepared by Behringverke, I.G. Farbenindustrie, Marburg, Germany1945 4p A report on samples of typhus vaccines prepared from infected rabbit lung and infected yolk secs of embryonated eggs. The samples prepared from rabbit lung had little detectable complement fixing antigen of typhus. In contrast the yolk sac vaccine had good quantities of this antigen. The results of complement fixation studies on the vaccines are presented. CHEMICALS AND ALLED PRODUCTS
Germany
BSIR 1( 1): 9, 1946-01-11 SMADEL, JOSEPH E. CURTIS, FRANCIS J. Manufacture of insecticides, insect repellents, rodentioides, I.G. Farbenindustrie A.G., Leverkusen and Elberfeld 1945 12p A report on the manufacture of insecticides and related products. It deals with Lausets-old, an analog of DDT, and other DDT types, giving preparation and methods of use. This report should be read in conjunction with Off. Pub. Bd., Report, PB 252, "Insecticides, insect repellents, rodenticides and fungicides of I.G. Farbenindustrie A.G., Elberfeld and Leverkusen". CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 9, 1946-01-11 STRICKLAND, O.W. French and Belgian explosives establishments 1945 48p Detailed description of methods of production and uses of the following items produced by I.G. Farbenindustrie A.G., Höchst Am Main for the Wehrmacht; Aluminum chloromethyl (methyl stoff); Nitrous oxide (GM-1); Explosive intermediate (Weisselz); Luminous paints; Substitute for blank powder in propellants (Treibsätze); Smoke -screen agent (Nebelsäure); Oil substitute (Steuerol); Tetra nitro methane (X-stoff); U-boat program; Infra-red camouflage (Infra-rot tarnung); Cloth treating agents to resist mustard gas (Selloxins); Product for detection of mustard gas in the dark; Fuel for jet propulsion (Sondertreibstoff): Bullet proof glass (Panzerglas); Protection of foodstuffs (Lebensmittel-Konservierung); Anti-tank mine (Haftmine); Landing field defense - Self igniting cushion (Brandkissen); Chlorobromonothane (Feuerloschnittel CB). CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 9, 1946-01-11 STRICKLAND, O.W. Intermediates for explosives production. I.G. [Farben Plant at] Ludwigshafen 1945 7p There is listed the materials supplied direct to the German Army by I. G. Ludwigshafen. There are given methods of production of the following intermediates which were issued to other factories for conversion into explosives: pentaerythritol, dinitro diphenylamine, ethlene diamine dinitrate or PH-Salz, and the insecticide known as Lauseto, prepared by the action of chloral upon a mixture of benzene and chlorobenzene, having one less chlorine atom than DDT. Col. Strickland also visited Lampaden, 10 miles S.E. of Trier, and saw ramps from which rockets mzy have been launched. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 9, 1946-01-11 SUDDHOFF, R.W. I.G. Farben, A.G. - Griesheim Elektron, Frankfurt Am Main - Miscellaneous chemicals. 1945 7p Report on products and special processes at this plant, Hydrogen, oxygen, nitrogen and acetylene were produced and distributed; also by-product neon and argon were produced, principally for electric lamp usage, and also some krypton and helium. Acetylene generators were fabricated. Griesheim introduced the first hydrogen welding equipment sold under the name "Autogen". Carbon for electrode manufacture for electrochemical operations was produced by the special coking of coal. The Organic Division's work was the production of intermediates for dyes and other uses. Operations comprised nitration, amidation and chlorination steps, following conventional schemes. A complete list of the products made is given in an Appendix to this report. Process of nitration and the production of meta dichlorobenzene and benzidene are described in some detail. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 10, 1946-01-11 SUDHOFF, R.W. I.G. Farbenindustrie A. G., Mainkur Works. Fechenheim 1945 3p Report of visit to plant of I.G. Farbenindustrie. Primarily a dyestuffs plant though recently considerable efforts have been made in the manufacture of intermediates for plastics and resins. Among the processes briefly described are those for producing Melamine or Azamine E, Maprenal MJB, Benzoguanamine, Maprenal BG, Kaurit MKF, (used as a treating agent for rayon), and phenothiaziae. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 10, 1946-01-11 SWANSON, A.A. Manufacture of Phlegmatized P.E.T.N. at Fabrik Zur Verwertung Chemischer Erzeugnisse GmbH Wolfratshausen. 1945 8p The process of Wolfratshausen (30 kilometers south by west of Munich) for manufacture of phlegmatized pentaerythritol tetranitrate (P.E.T.N.) is given. The steps in the process are: nitration, washing, recrystallization, phlegmatization, and drying. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 10, 1946-01-11 TARR, P.R. Chemical plant, Dr. Alexander Wacker, Gesellschaft für electrochemische industrie combat, Burghausen, Bavaria, Germany; Chemistry laboratory, laboratory removed from I.G. Farbenindustrie AG, Ludwigshafen, to Carl Freudenberg AG, Mullheimentalstr., Weinheim, Germany. 1945 1p Brief information on the manufacture of chemicals, solvents and plastics from the fundamental base of acetylene, together with the uses of plastic raw materials, primarily for surface cratings. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 10, 1946-01-11 TARR, P.R. Gaseilling plant and munitions dump, near St. Georgen, Bavaria; [Anorgana GmbH werk], Gendorf, Bavaria, Germany. 1945 2p This is a modern gas filling plant which is elaborately equipped to fill artillery shells, mines, and aerial bombs. Facilities are available for mixing agents and to thicken vesicants before filling into munitions. Data were obtained on organization of the German war effort and on a number of chemical processes, particularly for mustard gas and its raw material, as well as on the future plans of I.G. Farbenindustrie AG for the development of chemicals from acetylene. In the title the name of one facility was given as "Anorgana BmbH werke." CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 10, 1946-01-11 TOWNSEND, J.R. Dr. Richard Gotthold Vieweg, professor, Techniche Hochschule, Darmstat, 6 Gall Road, St. John's Wood, London. 1945 1p A test method for Q of dielectrics, mentioned by Prof. Vieweg, is briefly described. Substitute materials with which he had worked or was familiar are listed, namely: low pressure molded materials consisting of mixtures of phenol formaldehyde and sawdust; field wire insulation of extruded polyvynl chloride; Lupolen - a polyethylene mixtures of thiokol and waxes for submarine cable insulation; Plystyrene insulation stabilized from crazing [sic] by narrow band of polimers; silicone cement for cementing teeth to dentures; and two synthetic rubbers, Polyurettian and Polyisocyanides. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 10, 1946-01-11 TURNOCK, L.C. Henkel and Cie A.G., Dusseldorf - Miscellaneous chemicals. 1945 10p Principal subsidiaries and products; capital investment and present appraised worth; number and classification of employees; principal products, productive capacities, and unit costs; raw materials and sources; electrical energy, coal, water and steam requirements with costs; general sales policy and distribution of products of Henkel and Cie, [A.G.] as of June 25, 1945. The plant and equipment are practically undamaged. Essentials of the processes of manufacture of sodium perborate and synthetic glue are given. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 10, 1946-01-11 TURNOCK, L.C. Werke Koholyte Leulsdorf. 1945 10p Description of plant, products, raw material sources, processes, energy requirements, unit costs, distribution and sales policy. Products made were: chlorine, hydrogen, sodium hydroxide, potassium hydroxide, hydrochloric acid, calcium chlorate, calcium chloride, aluminum oxide and chromium oxide abrasive powders and mixes, [and] magnesium oxide. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 10, 1946-01-11 VOLWILER, E.H. Information on a material possibility used for in jet propulsion 1945 1p Brief description of the manufacture of hydrazine hydrate possibly used for jet propulsion, or rocket fuel, or both. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 10, 1946-01-11 VOLWILER, ERNEST H. Investigations by Professor Kuhn, Kaiser Wilhelm Institut Für Medizinsche Forschung 1945 6p More infromation is given on cyclodecapentaene. (See P.B. 1 and P.B. 5) Formula given as C₁₂H₁₂ (?). Had an inky-blue color reminiscent of the azulenes from camomiles. Absorption spectra also similar. Cyclo-octatetraene was found to be toxic and ineffective against the B. coli group. Cyclodecapentaene was not toxic to rats in 0.5 - 1 g doses. Product minimizes effects of mustard gas burns. Research on Vitamins A, E, B₆ and rutin, is mentioned. Large doses of E may prevent and cure fatty degeneration of the liver. Dibromosalicil works well against Staph albus infections, 300 times as effective as English Ca - penicillin. Various other halogen derivatives are mentioned as having possible specific action against various organisms. Thiophene and furane derivatives are also briefly mentioned in this connection. A proteclytic enzyme obtained from molds similar to Penicillium notatum is briefly mentioned. It is used to aid protein digestion. Product called "S-206". May have some value as a constituent of cleaning preparations to remove spots from clothing. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 10, 1946-01-11 WATSON, H.E. . Spangenburg Werke Schnachenburg Allee, 153 Hamburg; water resisting varnishes 1945 2p Imported sulphate pulp residues are purified and worked up into resin acids which are usually esterified. The process is comparatively new, and is analogous to the development of improved varnishes from shellac now taking place in England. The crude raw material is decomposed with sulphuric acid, washed and thoroughly dried. This product contains about 50% resin acids and is known as Rohtalloel. Rohtalloel is distilled giving 80% "Talloel". Talloel is esterified with glycerin, or glycerin substitutes. This produces a product which forms rather slow drying but very waterproof films. Talloel and its esters has not been considered as good as linseed oil and should be regarded only as a substitute. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 10, 1946-01-11 WEIR, H.M. Gesellschaft für Linde's Eismachinen Hollriegelskreuth 1945 31p Report of visit to Linde Company, near Munich, which makes equipment covering the entire field of temperatures below normal. Emphasis on commercial manufacture of oxygen (and nitrogen) and on the low temperature separation of hydrocarbon gases. Distinguishing features of the design of the plants is that heat recovery is widely practiced. Descriptions of processes for liquefaction of air, ammonia production, and separation of hydrocarbons. Contains eleven diagrams. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 11, 1946-01-11 WEIR, H.M. NEWMANN, L.L. Die Staatliche Materialprufungsanstalt An Der Technische Hochschule - Fuels and lubricants. 1945 18p This is a report of interviews with personnel at this institution. The work done on lubricant additives to increase allowable bearing loads is discussed. All the work had been directed toward organic phosphorus compounds. A thesis "Preparation of phosphorus compounds and their use in lubricants" by Gerd Muller, dated 12-1-44 is said to be an excellent summary of work done, and is to be microfilmed. Structural formulas of the additives are tabulated. In addition several tables of experimental results using these additives are given. Photographs of the test apparatus are included. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 11, 1946-01-11 WHITE, LESTER M. Deutsche Gold und Silber Scheide Anstalt, Degussa, Frankfort/Main. 1945 10p The main offices of Degussa and the adjoining offices of its subsidiary Holzverkohlungs-Verein (Hiag) were visited and information obtained about the following: sodium cyanide and potassium cyanide, other metal cyanides, sodium cyanate, sodamid, sodium metal, potassium metal, beryllium metal, lithium metal, Degesch, carbon black, ceramic materials and refractoeies, hydrogen peroxide, and other peroxygen compounds. Sodium cyanide was used in case hardening and heat treating of steels, production of acetone cyanhydrin used in production of Plexiglas, and for silver plating of airplane engine bearings. Sodium cyanate was used for production of Duloin, a sweetening agent, and Aminopyridine was made from sodamid and converted to Eubasin for use as a substitute for quinine-camphor solution in the treatment of tuberculosis and kidney diseases. Photographs show condition of the offices. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 11, 1946-01-11 WHITE, LESTER M. and others. Interview with Dr. Oskar Loehr, I.G. Farbenindustrie A.G., Frankfort on Main. 1945 6p Dr. Loehr's replies were short and evasive. A brief, general report is given on materials prepared for Buna S and N production, sodium, chlorine and chlorinated hydrocarbons, acetylene derivatives, DDT, and hydrogen peroxide. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 11, 1946-01-11 WHITE, T.N. Report on Leuna, Leunawerk, subsidiary of I.G. Farben (Target No. 28/6.04). 1945 3p The examiner found that about 90% of the files had previously been removed. He further removed c.40 reports of research projects - on plastics, cathylitical problems and organic combinations, to Dentine. A list of key research men at the plant is included in the report. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 11, 1946-01-11 WHITTAKER, H.W. Report on visit to Cave used for storage of hydrogen peroxide. 1944 11p Detailed report on a cave near Vaas in which hydrogen peroxide and permanganate had been stored: Description of the chambers; examination of valve from pump casing; examination of 2" plug-cook from main pipe line; examination of samples of peroxide and permanganate. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 11, 1946-01-11 WINSLOW, CARLILE P. Prof. Dr. Alfred Schmid, Konstanz, and Holig Homogenholz Werke GmbH, Baiersbronn 1945 14p Personal data on Prof. Alfred Schmid (eleotro chemistry specialist), owner of the "Holig" factory, in which synthetic wood, resins, glues were produced; finished products were flooring and cowling for aircraft. The report gives few technical details and is largely limited to Scbmid's personal and business connections. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 11, 1946-01-11 WOLDENBERG, MAX WHITE, LESTER M. Production of concentrated hydrogen peroxide solutions, Bad Lauterberg (Hartz) 1945 31p Description of plant and technical information on production and properties of concentrated hydrogen peroxide used by the Germans in auxiliary devices for launching airplanes, V1 and V2 bombs, naval torpedoes, jet propelled planes and unmanned tanks. Operations of the plant are divided into these four steps: 1. Electrolysis of ammonium bisulphate to form ammonium persulphate solution. 2. Conversion of ammonium persulphate to potassium persulphate crystals by reaction with potassium bisulphate, with regeneration of the ammonium bisulphate. 3. Hydrolysis of the potassium persulphate with live steam and rectification of the resultant H₂0₂-H₂O vapors to produce 30-40% H₂O₂, with regeneration and purification of the potassium bisulphate. 4. Concentration of the 30-40% H₂0₂ solution to 80-86% by vaporization and rectification under vacuum in special equipment. This step is new and the entire process is described in detail in this report. Research on peacetime uses of hydrogen peroxide, especially expansion of its chemical uses, had not yet begun. Report contains photographs of plant and layout and flow sheet diagrams. Recommendations for the future use of the plant and the product are given. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 11, 1946-01-11 ASSESSMENT REPORT 1945 4p Report on the condition, equipment, and documents and their disposal, of the Degaussing Laboratory, Physikalische Institute, University of Tübingen. In a Bericht presented by Dr. Piescke, describing the experimental arrangement and outlining the researches the following are included: the Helmholtz coil, the magnetometer of the Flux-gate type, demagnetizing coils, one a solenoid and the other the Droppel-U, MES-Coils, three magnetic ships models and Sperrbrecher research. Two articles on the magnetic amplifier are mentioned and it is pointed out that the best type of mu-metal developed by Siemens for transductors is designated as "Werkstoff 1040 (Siemens)." ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 11, 1946-01-11 BARKER, G.C. ROBSON, J.W. ABSON, W. Report on Talstation Lofer 1945 3p Work of the Talstation up to the end of 1944 was along these line: production of high intensity sound and its effect on human beings; a controlled rocket, radio and the infrared cell being used for control. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 11, 1946-01-11 CARMICHAEL, D. Interrogation of Dr. George Otto Erb, at Maria Veen a 5660, near Coesfeld, Electric detonators - types of fuzes. 1945 7p Dr. Erb worked in his own laboratory along such lines as: high speed electrical detonators, electric time and percussion fuzes using igniters and heat elements, base fuze with percussion and fixed delay, rocket propulsion devices, explosive propulsion for flying bombs, rocket propulsion for aircraft. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 11, 1946-01-11 DINGLEY, E.N., Jr. German Sonne navigational air radio station 1945 4p Very brief description of a German radio station in Bresles, France, which had been almost completely destroyed by bombing. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 12, 1946-01-11 DYER, C.L. Activities of Dr. Hans Erich Hollman - Radar, signals communications. 1945 8p Interview with Dr. Hans E. Hollman and Dr. Max Bense, German scientientists on April 22, 1945. Carried on laboratory research in fields of color film, steroscopic film, and other film techniques. Also theoretical and experimental work in short wave transmission, measurement of efficiency of induction heating apparatus, ultra sensitive vibration demonstration equipment and other scientific research. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 12, 1946-01-11 DYER, CARLETON L. Organization of Telefunken Radar, Signals Communications, Optical Devices. 1945 43p Report on the organization and work of Germany's largest firm in the radio and television fields: Tables of organization, list of location of plants, list of key personnel. Special discussions, (1) Artificial radar target; (2) artificial radar panorama targets; (3) lighthouse tubes; (4) cathode ray screen materials; (5) crystal detectors; [and] (6) microwave tube research. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 12, 1946-01-11 DYER, CARLETON L. Radar and communications targets in Belgium, Eindhoven and Aachen 1944 55p Reports visits to Radar School, Ghent, Aachen Technische Hochschule, and various firms and factories in Belgium engaged in manufacturing radar and communications equipment, and information obtained regarding personnel, activities of the firms, condition of the target, types of equipment found, etc. The term "target" in the title refers to facilities slated for exploitation by allied investigators following World War II. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 12, 1946-01-11 FRIEND, R.G. The Luftwaffe Signal School, Köthen. 1945 18p The school was badly damaged and looted before the investigating team arrived. The establishment layout is described. Investigation of the laboratories indicated that the work done was chiefly concerned with evaluation and study of British and U. S. equipment. Radar equipment, which was mostly damaged, is described. Several plates and drawings of this equipment are included. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 12, 1946-01-11 GREATBATCH, A.R. X-ray apparatus and radiological activities in France. 1945 6p Very brief reports on 5 French firms engaged in the manufacture of X-ray and radiological equipment. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 12, 1946-01-11 GRIGGING, RAVENEL HOLD, F.R. Drs. Kleen and Lerbs, Target No. C 1-633 1945 2p Information obtained from Dr. Kleen, head of the Telefunken Tube Research laboratories, and from Dr. Lerbs, in charge of the Magnetron group, regarding centimeter tube development. These men had diagrams (construction) of magnetrons, klystrons, and grounded grid triodes, mostly experimental. The term "target" in the title refers to facilities slated for exploitation by allied investigators following World War II. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 12, 1946-01-11 GUTEHOFFNUNGSHÜTTE. Sterkrade/Ruhr electrodes. 1945 4p This plant produced electrodes (lightly coated and heavily coated). Details on a new coating formula are given in this report. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 12, 1946-01-11 HABICHT, H.R. Hauptausschuss Elektrotechnik (list of underground plants of the electrical industry). 1945 3p Contains list of construction jobs, almost all underground supervised by Fritz Borho, loaned since 1942 to the Main Committee for Elektrotechnic - planning group - under Lueschen. List, as of Feb. 1945, gives name of contracting firm, location of the underground or evacuated plant and the code word of the enterprise. Borho explained the system in giving code names to underground plants. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 12, 1946-01-11 HANSELL, C.W. MacFARLAN, A.G. Report on private laboratory of Prof. Vierling. 1945 3p Visit to laboratory of Prof. Vierling at Feuerstein, on a hill above Ebermannstadt, north east of Forchheim, Prof. Vierling being professor of Fernmeldetechnik at the T.H., Hanover. The work done here was on speech communication systems known under the name of Gleichlauf, Anna, Baustein, and Nacht fee; the standard appeared to be that of a high class amateur group. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 12, 1946-01-11 HORSLEY, CAPERTON B. German X-ray and electro-medical industry. 1945 14p Report of inspection of Siemens-Reiniger-Werke A/G, Rudolstadt, largest European manufacturer of X-ray tubes and valve tubes for X-ray equipment; of Siemens-Reiniger-Werke A/G Erlangen, manufacturer of X-ray apparatus and other electro-medical equipment; and of Metallgussgesellschaft, Bolitz-Ehrenberg, producer of light metal castings for aircraft engines as well as X-ray equipment. Statistics of production and lists of X-ray manufacturers, physicists, radiologists, and X-ray clinics are given. Technical developments, trends and practices in the design and construction of X-ray tubes and valve tubes and in X-ray and other electro-medical equipment are summarized and German sources of supply for raw materials are enumerated. The author's name was given as HARSLEY. However, it should have been "HORSLEY." ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 12, 1946-01-11 HORSLEY, CAPERTON B. Hamburg, Fuhlsbuttel, Rentgenstrasse 24. 1945 3P Visit to C.H.F. Muller, A.G., in Hamburg where there were designed and manufactured various X-ray tubes and housingsand the "Cascade" high voltage generator for deutron acceleration. In addition they were to start production of a magnetron, designed by Telefunken; they had constructed an experimental 2 M.V. betatron and another 15 M.V. betatron. The recommendation is made that the plant be permitted to resume manufacture of medical X-ray equipment. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 12, 1946-01-11 HORSELY, CAPERTON B. Siemens-Rheiniger-Werke A/G. Erlangen (15 Kilometers north of Nurnberg) - X-ray apparatus. 1945 3p Outlines types of information obtained and items removed for further examination and study from this plant, which designs and manufactures X-ray apparatus and other electro-medical equipment, the largest plant of its kind in Germany. [It manufactured] X-ray tubes superior, in certain respects, to tubes now being manufactured in the United States. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 12, 1946-01-11 HELLER, M.F. Signal communication targets in Brussels. 1945 14p Account of a visit by the M.I. 8 representative on the CIPC Target Mission, relating to the guarding of targets, the demolitions carried out on signal targets, the booby traps, and the safes and strong boxes. (a) "CIPC" stands for "Combined Intelligence Priorities Committee" (b)The term "target" in the title refers to facilities slated for exploitation by allied investigators following World War II. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 13, 1946-01-11 HOLT, F.R. and others. C.H.F. Muller, A.G., Target No.1/132 e, X-ray equipment. 1945 4p Report on C.H.F. Muller firm, subsidiary of the Phillips organization, manufacturer of X-ray equipment. Details concerning infra-red tubes built into mobile sets and used in army tanks were revealed by Dr. Hans Ritz, Director of Research. Infra red receivers and searchlights made "seeing in the dark" possible. Chief military applications: night attacks by tanks, aircraft detection, naval gunnery control at night. Range of the set was 10-15 Km when relying on radiated heat. Ritz also stated that he had done research work in connection with splitting the atom. The term "target" in the title refers to facilities slated for exploitation by allied investigators following World War II. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 13, 1946-01-11 HORNER, W.A. Funk Versuchungs Anstella für Kriegsmarine Pelzerhagen near Neustadt, north of Lubeck. 1945 1p Description of the establishment which test[s] all operational radar equipment for the German Navy, develops transmitters, conducts underwater acoustic research, and other matters. There is listed also associated research stations. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 13, 1946-01-11 HUNT, G.L. TE KA DE electric valva factory - C.F. Weiss textile mills, Helmbrechts; Siemens Halske telephone equipment factory, Hannerman mills, Asch Czechoslovakia. 1945 2p Brief description of the work being carried on in these two factories. Te Ka De electric valve factory is entirely engaged in the manufacture of radio receiving valves. Types being made: -RG12D60 2T2, RL12T15. This type of valve manufacture is of conventional design. The main occupation of the Siemens Halske telephone equipment factory is the manufacture of 4-channel carrier telephone equipment with a frequency range up to 29 ks/sec. A subsidiary occupation was the manufacture of measuring equipment, e.g., wavemeters, attenuators, etc., for telephone or carrier-telephone frequencies, although some of the wavemeters covered S-band work and decimeter wavelengths. In connection with the S-band work, magnetrons and klystrons were being used experimentally. The magnetrons were of the split-anode type suitable for local oscillator use, and the klystrons were copies of the British types. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 13, 1946-01-11 HUNT, G.L. Telefunken, C.R. tube laboratory and factory, Bad Liebenstein; A.E.G. research labs., Electronic valve application laboratory and factory, Clausthal-Zellerfeld; E. Leybold's Nachfolger laboratory, Berg academy, Clausthal-Zellerfeld. 1945 2p At the Telefunken, C.R. tube laboratory and factory, research and development was carried out on electron optics, cathodes, CRT screens, photo-electric effects and secondary emmission. Double layer screens were produced as well as potassium chloride screens. It was intended that water-cooled valves, types LRS 250, RS 255 and RS 257, and magnetron type LMS 100 to be put into production at the A.E.G. research labs., Electronic valve application laboratory and factory. Development work at the E. Leybold's nachfolger laboratorium, radio and physics laboratory was done on radio sondes for German army and navy and infra-red receivers. Brief description of the work is given. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 13, 1946-01-11 HUNT, G.L. HACHEMEISTER, C.A. BORGARS, S.J. Electronic valve (tube) factories - Helmbrechts and Minden. 1945 17p Description of two German radio tube factories, including data on the plant, types of tubes manufactured, special processes, documents found. Photographs. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 13, 1946-01-11 INSTITUTE F[Ü]R Theorie der Elektrotechnik A.D.T.H., Stuttgart. 1945 2p Brief account of research projects at the Institute for Electrotechnic Theory; (1) Dr. Bader, mathematician, worked on network and filter problems, machine solutions of equations. (2) Dr. Breitlung worked on magnets, particularly hysterisis measurements, magnetic suspension of materials. (3) Dr. Kessler worked on D.C. amplifiers. No details are given. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 13, 1946-01-11 KOLKS, R.H. RIDDLE, J.M. HACHEMEISTER, C.H. Report on Physikalisch-Technische Reichsanstalt at Weida and Zeulenroda, Thuringen. 1945 3p Brief report on war research activities of German organization, the equivalent of the U. S. Bureau of Standards, including organization chart. At Zeulenroda, where high frequency laboratories are located, measurements were made on materials for absorbing electromagnetic radiation, namely Eisenpane and Moltspren. Magnetrons were designed and constructed for use in search receiver design and in frequency measuring experiments, centrimetric radiators were studied and designed, research was conducted on the design of search receivers and valves, etc. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 13, 1946-01-11 McLEAN, F.C. Television in France. 1944 5P Report on television equipment in the laboratories of COMPAGNIE De COMPTEURS at Montrouge and in the studies of RDF near the Eiffel Tower. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 13, 1946-01-11 MENARD, J. Z. German research and development in the radio station. 1945 31p Report of an investigation of two Black List Targets in the Lyon Area, of the production facilities of several French factories, and an attempt to obtain available information about German research and production in the field of Radar and controlled-missiles. Major observations: (1) Development of important equipment not intrusted to French by Germans. (2) Lyons laboratories of Le Materiel Telephonique developed several radar, pulse telephony, and pulse telegraphy equipment, not, however, up to Allied Standards. (3) Some information obtained on German radar activities. (4) Specifications for a number of German tubes listed. (5) location of German manufacturers and radar organizations listed. The word "targets" in the description refers to targets for exploitation by allied intelligence forces. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 13, 1946-01-11 MERTZ, P. TOWNSEND, J.R. McCARTHY, R.H. Phillips underground valve plant, Porta, Westfalia (target No. C-1/678). 1945 1p Report on examination of Phillips underground plant to obtain information on equipment and methods used in manufacture of valves and electric control spools for glider missiles. Production appeared to have been set up solely for the P-8000 tube, a miniature pentode, Grids, cathodes, heaters, plates and button type stems are made in the plant. The word "target" in the titles refers to targets for exploitation by Allied intelligence forces. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 13, 1946-01-11 MULLET, L.B. RAMM, E.T. WAYNE, E. Report on Fernmeldetechnisches Entwicklungslaboratium and interrogation of Dr. H. Kimmel 1945 3p Account of work being done by Kimmel at Olching (near Munich). He was mainly concerned with design and small-scale production of test and measuring gear; RC oscillator pulse and signal generators, high frequency attenuator, absorption wavemeters, Diode voltmeters, calibrated receivers. Other problems worked on by Dr. Kimmel were: a proposed AL aerial sSYSTEM; direction finding system known as "Susel"; regulated output receivers; indicator for 50 c/s phase difference measurements; and a time modulation system. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 13, 1946-01-11 NUTTING, D. C. Establishments ORA-Grandin M. Chauchat, Metox - Radar 1944 7p Brief reports of inspection of two French firms manufacturing radio equipment under German contracts. The Ora-Grandin firm manufactured an amplifier believed to be intended for Ultra-Sonic equipment and a receiver type R 600 built to German specifications. No work was done on Radar or any equipment involving pulse technique. The Metox firm manufactured various transmitter and receiver equipment for the German army and navy. This firm manufactured equipment from German blueprints and did no actual laboratory work for the Germans. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 14, 1946-01-11 PALMER, C.M. HEPBURN D. Vereinigte Bayrische Telefonwerke, A.G 1945 3p Condition and description of contents of medium sized factory making standard telephone equipment. Attached is a list of service equipment made by the various factories of Siemens and Halske. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 14, 1946-01-11 PARROTT, JOHN A. Siemens and Halske, Technical Bureau, Hamburg (sales and service actually) 1945 1p Lists officers and manufacturing plants of Siemens and Halske. Technical data of general character on Siemens Carrier, and voice frequency repeaters, and photographs of coaxiyl cables used for radio purposes were obtained. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 14, 1946-01-11 RADFORD, A.S. Messrs. Steeg and Reuter - Bad Homburg 1945 7P Report of condition of laboratories, wartime activities and technical developments of Steeg and Reuter, firm engaged during the war almost exclusively on the production of piezo electric crystals for frequency control and for pressure measurement devices. Rock salt prisms and polarisation equipment for infrared experiments have also been produced. Shortage of good quartz led to the development of methods for the most economical use of the material. Methods of determining the electrical axis of crystals and method of construction of wafer crystals are described. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 14, 1946-01-11 RAMM, E.T. MULLETT, L.B. Interrogation of Professor W. O. Schumann of the electro-physical laboratory, Munchen Beu 1945 5p Interview with W.O. Schumann, professor of theoretical physics. Discussion of pulse generating circuits, gas discharge tubes, especially oscillations in plasma and gas discharge phenomena at low pressures. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 14, 1946-01-11 REEVES, A.H. The Antenna Research Station belonging to Thekriegsmarin Establishment N.V.K. (Pelzerhaken and Sonderberg) 1945 1p The village of Bokel, near Rendsburg (Schleswig) is the location of this field station for antenna research. It is a broad band (15 to 50 m.) antenna system capable of giving a beam between 10 and 35 deg. (total) width (depending on the wave length) and capable of being rotated electrically to receive from any direction. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 14, 1946-01-11 REEVES, A.H. Dr. Dohler, late of Hamburg University (theoretical physicist) (experiments with spark-gap pulse transmitters, etc.) 1945 3p Reports work of Dr. Dohler leading to a prototype model of a spark-gap transmitter working reasonably well down to a wavelength of 60 cms. If his claims are true (probably the case) he has a practical spark transmitter for certain applications both in R.C.M. and for radar transmission. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 14, 1946-01-11 REEVES, A.H. Nachrichtenmittelversuchkommando, Funkversuchsstelle, Pelzerhaken (Neustadt - Radar Research and Development Establishment of German Navy). 1945 3p Report on the evacuation center for the principal Navy radar research and development establishment. German radar apparatus was found to be well designed and well engineered but the question of "Centimeter radar" had not been solved by Germany. Details are given concerning magnetron, modulation system, antenna system, scanning system, receiver, wavemeter for 10 cms., experimental magnetron, etc.) Also details on the 3 cm technique and the technique from 2.0 to 1.6 cms. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 14, 1946-01-11 SNOWDEN, M. REDGMENT, P. WHITMER, R.M. Interview with Dr. Oskar Heil, Konstanz research in velocity-modulated oscillator tubes 1945 4p Report on Dr. Oskar Heil's research in velocity-modulated oscillator tubes. Special data on the R.E/4-101, particularly its cavity design, electron focussing and the most desirable beam in electron optics. Heil's techniques for studying electron optics are described in detail. Special discussion of energy spectrum of electrons in the beam, transit time resonance, operation of an amplifier, positive ion focussing. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 14, 1946-01-11 SOUTHERN, R.W. COVENTRY, A.J. SS Oberabschnitt Nordsee Hamburg, Harvestehudeweg 8 a 1945 2p Two charts, giving the lay-out of the SS systems of radio communication. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 14, 1946-01-11 SPROULE, R.S. PETERSON, V.W. PATTISON, R.R. Investigation of gas turbine and jet propulsion work in Paris 1944 28p While results of the investigation were mostly negative in the gas turbine and jet propulsion field, points of interest obtained by Engine team of "T" force on visits to factories, caves, etc., in the Paris area were: Exhaust-driven turbo-superchargers on Heinkel 274 at Farman factory; the Electromechanique built, Brown-Beveri design, exhaust driven turbo-superchargers, mounted on the Hispano-Suiza Y.51 (12T) engine; the Rateau turbo-superchargers; a machine used by Gnome et Rhone for machining shrouded supercharger impellors, from a forging; a petrol driven starter motor to fit a standard eclipse flange designed by Air Equipment; tail assembly and ailerons in the H.I.P.A. Factory; a German atomic H.2 welding process called "Arcatom", details available at Societe de Soudure Autogene C. Francaise; etc. Appendix II comprises a list of documents and materials procured for further study. A visit to Paris gives amplification of points of interest to M.A.P. namely: A double fuel system developed for the 801 engine; a method of finning B.M.W. 801 cylinders with light allow strip; a method of chrome plating the bores of 801 cylinders; details of the Messerschmitt P.8 propeller hub; bakelite propeller mounting cones developed by Ratner; and an exhaust turbine supercharger from the B.B.603 H.E. 274, installation of Farmans. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 14, 1946-01-11 STEVER, H. GUYFORD. Radar and electronics targets, Cologne and vicinity 1945 35P Detailed reports on information obtained as a result of visits to twenty-nine establishments formerly engaged in radio and electronic production or research. These included industrial firms and universities. Most noteworthy is the report on the infra-red experiments undertaken at the Physikalische Institute, University of Bonn. The word "target" in the titles refers to targets for exploitation by Allied intelligence forces. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 14, 1946-01-11 WAYBURN, EDGAR Report on the Siemens-Reiniger Werke A/G at Erlangen 1945 3p A description of the plant of the largest manufactures of X-ray and other electro-medical equipment in Germany. Present output is less than 20% of prewar output. Mass radiographic apparatus (35 mm and 80 mm) examined. Investigator feels that 6 or 7 years ago Siemens-Reiniger manufactured mass miniature radiographic apparatus was superior to anything else in the world, but at present it lags behind British or American apparatus in most respects except for the lens. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 15, 1946-01-11 WHITMER, R.M. SNOWDEN, M. Report on Physical Department of University of Strasbourg at Seefeldon 1945 2p Detailed account of Dr. Offo Brandt's research in supersonics, particularly supersonic direction of torpedoes. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 15, 1946-01-11 WHITMER, R.M. and others. Report on Forschungs Anstalt der D.R.P. Post Dienstelle. F 1945 3p This report discusses work of the laboratories on television, control of glide bombs, electron multipliers, klystrons, magnetrons, and Hela (broad band intercept receiver). ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 15, 1946-01-11 WIEMANN, HERMAN and others. Targets in Mulhouse 1945 12p Summary of information obtained at Dolfuss-Meig Company, Mulhouse and at additional firms in Mulhouse manufacturing machine gun feeders, electric cable connections for antiaircraft guns, electric motors, uniforms, medical supplies, mm. guns, torpedo tails, heavy trucks, radio parts, relays for U-boats, 105 mm. shell cases, fuel injection pumps for Diesel motors. The word "target" in the titles refers to targets for exploitation by Allied intelligence forces. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 15, 1946-01-11 WILLIAMS, JAMES H. Interrogation of Dr. Carl Bosch: Cathode screens, Selenium dry rectifiers. 1945 3p Report on research work of Dr. Bosch on cathode ray screens, Selenium dry rectifiers, high tension insulators and machines, and biology incidentally. Contains some information on results of oral use of certain salts for treatment of rheumatism. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 15, 1946-01-11 WORDEN, L.R. DROGE, H. Radio Sonde transmitters Wurt Radio GmbH, Stuttgart and Neuhausen 1945 6p Description of radio Sonde transmitter developed by Germans just before the end of the war but never in production. In addition to relaying usual signals for barometric pressure, temperature and humidity, it permitted measuring of wind velocity without the necessity of following the balloon with a theodolite. Device has only 2 tubes and a conventional Radar station can be used as a ground station. Pamphlet includes wiring diagram and original German description. ELECTRICAL MACHINERY, EQUIPMENT, AND SUPPLIES
Germany
BSIR 1( 1): 15, 1946-01-11 BRIGHTMAN, HARRISON M. and others Deutsche Edelstahlwerke- Krefeld, Germany 1945 20p Complete layout of this steel mill, with buildings named is given in a drawing and attached list. The organization is described, and the various parts of the plant and equipment are discussed in some detail. Products made at this plant were high alloy steels only. Chemical specifications are given for steels produced. A stock list of materials on hand is also presented. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
Germany
BSIR 1( 1): 15, 1946-01-11 BRIGHTMAN, H.M. Gebrüder Bohler A. G. Buderich - Metallurgy 1945 28p Detailed report on the steel works Gebrüder Bohler, Buderich, manufacturer of high quality steels, steel tools, and forgings. Main items of production: Aircraft and diesel engine cylinder sleeves, armor-piercing shell steel, gun barrels, crabon tool steel, welding wire and electrodes, nitriding steel, high speed steel. Personnel employed: 4000 Topics covered in the report: (1) Powder metallurgy (hard cemented carbides), (2) The research laboratory. Equipment and main types of research are listed. (3) Raw materials and electric furnace steel melting (4) Ingot preparation prior to rolling on forgoing. (5) Heating for rolling and forging. (6) Rolling mills. (7) Forge shop. (8) Heat treatment. (9) Machine Shop. (10) Spring Shop. (11) Cold Finishing Shop. (12) Apprentice School. (13) Analyses and monthly tonnage figures of products under normal operations (14) List of steel-making raw materials. (15) A graph showing the rise and fall of production during the war years. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
Germany
BSIR 1( 1): 15, 1946-01-11 BRIGHTMAN, HARRISON M. and others August Thyssen Hutte, A.G. - Hamborn 1945 26p Report on an important steel plant, which had suffered considerably from bombing. Items discussed: Open hearth furnaces, basic Bessemer converters, electric furnaces, rolling mills, raw materials, by-products. The plant produced ingots and rolled steel. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
Germany
BSIR 1( 1): 15, 1946-01-11 BRIGHTMAN, HARRISON M. and others Friedrich-Alfred-Hutte at Rheinhausen-Metallurgy 1945 22p Report on one of the steel works of the Krupp Corporation, producing semi-finished material (including billets, slabs, and sheet bar), railroad accessories (rails, sleepers, tie plates, fish plates), shapes (beams, channels, angles), bars (rounds, squares, flats, hexagons). Information given: Personnel, extent and condition of plant, raw materials, coke ovens, sintering machines and screening plant, blast furnaces, basic Bessemer converters, open hearth and electric furnaces, surface conditioning, rolling mills, statistics on production, raw materials, inventory, etc. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
Germany
BSIR 1( 1): 15, 1946-01-11 BRUMER, SAMUEL Underground factory sites in Ansbach 1945 5p Reports inspection of seven underground factories in Ansbach, giving location, condition, description of contents, etc. One report deals with a special independent laboratory for tests and experiments in light metals conducted by Eugen Berblinger. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
Germany
BSIR 1( 1): 15, 1946-01-11 COLCLOUGH, T.P. Burbach Eisenhutte, Saarbrucken - Metallurgy 1945 8p The steel works at Burbach consist of coke ovens, blast furnaces, Thomas and Martin plants, and rolling mills - all for the manufacture of carbon steels. These works and their use are described. There is also an account of the recovery of vanadium. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
Germany
BSIR 1( 1): 15, 1946-01-11 COLCLOUGH, T.P. Rochling'sche Eisen Und Stahwerke GmbH 1945 26p Dr. H. Rochling has headed this company with the main works being at Volkingen in the Saar, near Thionville, and the Rochling works near Wetzler. The works are a good example of an integrated operation from ore preparation and manufacture of coke to the finished steel product, the capacity of each operation per year being given in an appendix. During the war the production of the Martin and electric furnaces has been practically confined to the production of alloy steel. This production for the years 1936 to 1944 is given in a table. Recent major developments are the manufacture of guns and steel castings, the cold-rolling of strip, the finishing of bars. Other developments: desulphurisation of liquid pig iron by the use of liquid soda ash; recovery of vanadium from pig iron; improvement of coke oven gas by the Still process; development of the all-basic Martin or O.H. Furnace. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
Germany
BSIR 1( 1): 15, 1946-01-11 COLCLOUGH, T.P. SIMPSON, J. Steel making in Belgium and Luxembourg during German occupation 1944 20p Steel production in Belgium during the German occupation is summarized. Detailed production records are said to have been collected by Major Harrison for the Economics division of SHAEF. Very little special quality steel of any type was made. Manufacture of H.P.N. (Hamborn, low P, low N steel made in Basic Bessemer converter) is described in some detail. Typical analyses are given as follows: C Mn S P N 0.05 0.34 0.022 0.043 0.008 0.04 0.28 0.025 0.037 0.009 Test procedures on this steel are described and results given. A list of uses for H.P.N. steel is also included. Recovery of Vanadium from pig iron is extensively discussed. The manufacture of shell steel is briefly indicated. Steps taken by the Germans to conserve Mn are briefly mentioned. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
Germany
BSIR 1( 1): 16, 1946-01-11 HUNTER, R.M. The electrochemical industry, Bitterfeld area 1945 26 p A general description of plants in this area is given. Production of magnesium, aluminum, magnesium alloying and fabrication, alkali and chlorine is given in detail, with processes, yields, capacity and equipment completely described. Production methods and equipment for production of alkali chlorates, graphite, metallic calcium, phosphorous (red and yellow), potassium bichromate, potassium permanganate, barium metal and bearing metal alloys are given also, but in briefer form. CHEMICALS AND ALLIED PRODUCTS
Germany
BSIR 1( 1): 16, 1946-01-11 LINK, ALBERT E. Synthetic Mica Process-Ostheim, Germany 1945 4p Synthetic mica has been produced by the KWI Ceramics Institute (Forschungsemeinschaft für Keramik, Glastechnik and Emailtechnik). The best synthetic mica is as good as natural mica. The mica blocks carry the same cleavage characteristics as natural mica. The general summary and technical details of the process are given. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
Germany
BSIR 1( 1): 16, 1946-01-11 McCARTHY, R.H. and others. Report on Osnabruck Kupfer und Kabel Werke KlosterStrasse, 29 1945 3P Report on telephone and telegraph products, especially wire manufacture, rolling, drawing, insulating and quadding or pairing, stranding, sheathing. German practice appears to be lower in quality and quantity than good American and British practice. The only unique nature was lack of annealing of copper wire at any stage. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
Germany
BSIR 1( 1): 16, 1946-01-11 MOTT, B.W. Aluminum Woerwerke, Erftwerke, Gravenbroich 1945 8p Detailed description of a plant for the production and recovery of aluminum: (1) Electrolytic production of aluminum from bauxite, (2) Production of anti-radio-location strip, (3) Recovery of swarf and dross, (4) Recovery of aluminum alloys from wreck aircraft. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
Germany
BSIR 1( 1): 16, 1946-01-11 REPORT ON (1) Drahtwerke Eidelstedt (C-22-1013a) (2) Rheinische Draht Und Kabelwerke (C-22-1013b) 1945 2p Report on Drahtwerke Eidelstedt, manufacturers of iron wire and screen and Rheinische Draht Und Kabelwerke, who draw and fabricate cable, bare-rubber, and high voltage paper insulated cable. A plastic extrusion machine for insulating three wires at a time is described in some detail. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
Germany
BSIR 1( 1): 16, 1946-01-11 SCHATZEL, R.A. WHITE, W.L. Felten & Guilleaume Carlswerke, Cologne - Miscellaneous chemicals 1945 5p This is one of the largest electric companies in Germany. This plant has two divisions, 1. "Copper and Cable" and 2. "Iron and Steel". The copper plant includes a refinery and rolling mill where copper, aluminum copper alloys and copper clad steel is rolled. Rolling practice is described. The wire drawing department is briefly discussed, and the materials used for wire insulation given, with formulas for compounding. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
Germany
BSIR 1( 1): 16, 1946-01-11 SCHATZEL, R.A. WHITE, W.L. Land Und Seekabelwerke - Cologne - Miscellaneous chemicals 1945 7p This plant produced insulated wire and cable. Mixing directions and formulae are given for insulating materials. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
Germany
BSIR 1( 1): 16, 1946-01-11 SCHATZEL, R.A. WHITE, W.L. Suddeutsche Kabelwerke, Mannheim - Miscellaneous chemicals 1945 7p This is a complete plant equipped to manufacture bare and insulated copper and aluminum cables. They also make Pyrotenax and all ceramic insulated cable. Formulas and mixing procedures are given for ignition cable, power cable, heavy duty jacket, "Igelit" -(for aircraft, post office cable, and general use) insulations, Pyrotenax cable production is described. This is a low voltage cable for use in hot locations, such as boiler rooms, explosive factories etc. It is an Al conductor, Al sheath cable with MgO as insulator between conductor and sheath. Filling and drafting procedure is given in detail. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
Germany
BSIR 1( 1): 16, 1946-01-11 SIDERY BONSEY I.G. Farbenindustrie (metallurgical and chemical) Bitterfeld near Leipzig 1945 2p At the Aluminum Works I and II, alumina is fed to Sonderberg furnaces via 4" pipe by means of air pressure, total capacity being 35,000 tons per annum. There is also described the casting shop for aluminum and magnesium and the extrusion and forging plant. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
Germany
BSIR 1( 1): 16, 1946-01-11 TAMPICO, J. ASHLEY, H.C. Report on Kaiser Wilhelm Institut für Metallfarschung Stuttgart, Seestrasse 75. 1945 2p Brief list of research projects at the Kaiser Wilhelm Institute for Metallurgy: (1) Combustion of aluminum and magnesium as fuels in atmosphere of steam and H₂0₂ (2)Alloy substitutes for platinum. (3) Corrosion of aluminum and magnesium alloys. (4) X-ray methods for study of metals - No details given. Names of research personnel are listed. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
Germany
BSIR 1( 1): 16, 1946-01-11 YOURY, F.W. THOMAS, GEORGE Light steel building products 1945 22p Extensive report on a representative sample of German light steel products. Germany is considered to be years behind Great Britain and the United States in the design and manufacturing of lighter fabricated steel products for use in building construction. Discussion of steel windows and doors, with outline drawing of industrial windows, casement windows, and doors. Special account of the use of steel for hangar doors and roofs. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
Germany
BSIR 1( 1): 16, 1946-01-11 BALDESCHWIELER, E.L. Production of synthetic fatty acids and edible fats - Deutsche Fettsaurewerke, Witten, 1945 10p Contains flow sheets for the oxidation plant for manufacture of fatty acids and for the manufacture of edible fats, with additional explanations of the processes for making these synthetic products. Diagram is provided of kettle used for oxidation. FOOD AND KINDRED PRODUCTS
Germany
BSIR 1( 1): 17, 1946-01-11 CROMARTIE, WILLIAM J. HENZE, CARLO Research in the field of fat and protein supply in Germany 1945 6p A brief survey is given of the work done in Germany for the purpose of compensating the acute fat and protein shortage. A description is given of the sources of raw material (tomato seed oil, grape seed oil, fish protein, oilseed proteins), and of a synthesis (total synthesis of fats and biochemical synthesis of fat and protein by fungi from sugar and nitrogen compounds). Finally the possibilities of economizing on fat by taking advantage of the metabolic transformation of carbohydrate into fat within the human organism are considered. FOOD AND KINDRED PRODUCTS
Germany
BSIR 1( 1): 17, 1946-01-11 DILL, DAVID B. Manufacture of Torula food yeast from sulphite liquors 1945 7p A dry yeast product containing one to three per cent moisture and 40 to 50 per cent protein is produced by a continuous process. The yeast is suitable as a human or animal food. Sulphite liquor produced as a by-product in the manufacture of cellulose from beech wood is neutralized with amnonia. This forms a growth medium for the Torula yeast. The process yields approximately 7 tons of dry yeast powder and fifty tons of cellulose per 100 tons of completely dry wood. FOOD AND KINDRED PRODUCTS
Germany
BSIR 1( 1): 17, 1946-01-11 SHELDON, L.M. Ashaffenburger Zellstoffwerke, A.G 1945 7p Description of plant and of processes in the production of wood cellulose. The following factors were considered as probably responsible for the high quality of the resultant product: 1. Viscosity control throughout the entire cycle; 2. Drying technique which involved exposure to temperatures not greater than 90 to 92°C while reducing the moisture content from about 30 to 7% or less; 3. Treatment of the pulp for reduction of ash by means of a final wash with dilute HCL solution. The chief use of the product was in the smokeless powder industry. LUMBER AND WOOD PRODUCTS (EXCEPT FURNITURE)
Germany
BSIR 1( 1): 17, 1946-01-11 WINSLOW, CARLILE P. Dr. Butefish, A director of I. G. Farbenindustrie and member of its executive technical committee, previously at Leuna, and an expert on coal hydrogenation 1945 4p Brief information collected on the following subjects: Hydrogenation of wood and lignin; destructive distillation of wood; wood-sugar-alcohol-yeast-feeding; utilization of lignin - plastics; glues and gluing; pulp and paper; wood preservatives; fireproofing; chemical seasoning; resin-treated compressed woods; painting and finishing; high-frequency heating; wood in aircraft; naval stores and gasogenes. LUMBER AND WOOD PRODUCTS (EXCEPT FURNITURE)
Germany
BSIR 1( 1): 17, 1946-01-11 WINSLOW, C.P. Pulp and paper activities in the Mannheim, Darmstadt, and Heidelberg area 1945 10p Lists the developments in the utilization of forest products, condition of mills, stocks of raw material an hand, and description of firms and institutions carrying on research in this field. LUMBER AND WOOD PRODUCTS (EXCEPT FURNITURE)
Germany
BSIR 1( 1): 17, 1946-01-11 COWDEROY, J. A. Daimler Benz plant at Wendlingen 1945 10p Report based on a visit to a completely destroyed Daimler Benz plant which manufactured cylinders and camshafts for types MB 501, MB 511, and MB 518, high speed diesel engines used in E-boats. The engines are briefly described, and differences between the various types are pointed out. MACHINERY (EXCEPT ELECTRICAL)
Germany
BSIR 1( 1): 17, 1946-01-11 DEN HARTOG, J.P. HART, H.H. Mechanical plants in Beltfort[, France] area 1944 6p Report on production and present condition of the following plants: Alsthom at Belfort (produced electric motors from 1 to 30 H.P., large steam turbines, generators, large water turbines). Peugeot at Montbeliard (produced trucks, auto engines, engine hoods for airplanes, tracks for German half-track vehicles). Etablissements Marti at Montbeliard (sole manufacturer of acoustic depth sounding equipment) Etablissements Japy Freres at Beaucourt (manufacturers of typewriters, alarm clocks, hand pumps, electric motors.) MACHINERY (EXCEPT ELECTRICAL)
Germany
BSIR 1( 1): 17, 1946-01-11 DEN HARTOG, J.P. SCHILLING, A.H. Mechanical and metallurgical targets, Savoy region 1944 7P Brief reports on French establishments in the fields of hydraulic engineering, aluminum, electric machinery. The word "target" in the titles refers to targets for exploitation by Allied intelligence forces. MACHINERY (EXCEPT ELECTRICAL)
Germany
BSIR 1( 1): 17, 1946-01-11 COWDEROY, J.A. M.A.N., Augsburg and Harburg - the Franciskaner Keller, Munich 1945 25p Reports of visits to M.A.N. works at Augsburg (producers of diesel engines) and to M.A.N. design offices at Harburg (gas turbine developments) and to Franciskaner Keller, Munich, which housed factories making small component parts for B.M.W.. aero engines, petrol transfer pumps for aero engines, and small sheet light alloy pressings for parts for airframes. Detailed information includes: Description of engines developed at M.A.N. works, complete test records of engines for Type XXI U-Boat, schematic drawing of M.A.N. proposed gas turbine propulsion unit. Investigations were under way on axial compressors. exhaust turbo superchargers, and component parts of various types of engines, and also on the measurement of air flow in pipes. MACHINERY (EXCEPT ELECTRICAL)
Germany
BSIR 1( 1): 17, 1946-01-11 ELLUM, G.F.C. and others. Report on J.M. Voith Maschinenfabriken 1945 3p Report of work done on 1. Voith-Stauber compressors to deliver oil free air or gas 2. axial flow compressors and 3. blade profile for water turbine runners. There is also a report on wind tunnel and air compressor blade tester. MACHINERY (EXCEPT ELECTRICAL)
Germany
BSIR 1( 1): 17, 1946-01-11 GARTER, D.H. and others. Interrogation of Herr Schaaf. Solid injection, jet engines 1945 2p Herr Schaaf related about work at B.M.W. in Munich on development of solid fuel injection engines. An analysis is given on the heat-resisting materials used by B.M.W. for making certain sheet metal pressings for jet engines, the chemical content of the combustion chamber and turbine blades. MACHINERY (EXCEPT ELECTRICAL)
Germany
BSIR 1( 1): 17, 1946-01-11 GILBERT-BERTHIEZ, F.C. Inspection of "Muller Montag", Vertical milling machine with copying attachment 1945 2p The Muller Montag was found to be a standard vertical milling machine of 15" x 24" in which a copying attachment had been incorporated. The machine, however, is not fully automatic and cannot be compared to the Keller machine. MACHINERY (EXCEPT ELECTRICAL)
Germany
BSIR 1( 1): 18, 1946-01-11 GREENOUGH, H.V., Jr and others Brown-Boverie company, plants and industries 1945 13p Brief description of type 26 and type 21 submarines, together with turbo-supercharges, propulsion motors, and turbines used in submarines. MACHINERY (EXCEPT ELECTRICAL)
Germany
BSIR 1( 1): 18, 1946-01-11 JUNKERS PLANT, Dessau 1945 2p Specifications for an 8 cyl. 90 degree V-engine, called type KM8, for use in naval torpedoes. This engine was manufactured by the Junkers Plant, Dessau. List of personnel in charge of engine development is given. MACHINERY (EXCEPT ELECTRICAL)
Germany
BSIR 1( 1): 18, 1946-01-11 KRIG, R.J.M. COWDEROY. J.A. HOGGER, H.C. M.W.M. Mannheim, Daimler Benz, Rothenbach Brown Boveri Co., Mannheim 1945 8p Reports of visits to Aero engine test plant, Daimler Benz; to M.W.M. factory at Mannheim (manufacturers of 1450 H.P. Krupp engines for U-boats); and to Brown Boveri Co. works at Mannheim (manufacturers of exhaust gas driven super-chargers and gas turbines and axial air compressors). Detailed descriptions of engines found are given. The only development of axial compressor was said to have been a secret project ordered by the German Air Ministry and thought to be for the B.M.W., manufacturers of aero engines. No drawings or information were found on this product. MACHINERY (EXCEPT ELECTRICAL)
Germany
BSIR 1( 1): 18, 1946-01-11 LLOYD, P. Gas turbine development 1945 30p Development and production of gas turbines at B.M.W., Daimler Benz, and Junkers, covering personnel, location of plants, design, performance, manufacture, production statistics, diagram of engines. The report gives data on jet and rocket propulsion engines. MACHINERY (EXCEPT ELECTRICAL)
Germany
BSIR 1( 1): 18, 1946-01-11 MURPHY, G. Diesel engine research and development in Germany during the war and pre-war period 1945 7p Diesel engine development in Germany has been directed mainly toward the improvement and weight reduction of conventional four-cycle engines, especially the six-cylinder 40/46 M.A.N. submarine engine. Detailed design information and reports on performance are given for the following engines: (1) M.A.N. double-acting, twenty-four cylinder Vee-type, two-cycle engines; (2) Junkers Juno 205 (opposed piston, aircraft diesel engine) used only experimentally; (3) M.A.N. submarine engines. MACHINERY (EXCEPT ELECTRICAL)
Germany
BSIR 1( 1): 18, 1946-01-11 OSBOURNE, ALAN SPOFFORD, WILLIAM P. Report on visit to offices and test shop of the Schmidtische Heissdampf GmbH 1945 2p Information on reciprocating steam engines of high thermal efficiency, the type and consumption of lubricating oil for these engines operating at pressures from 40 to 55 atms. Considerable information on the Schmidt high pressure steam installations was also obtained. MACHINERY (EXCEPT ELECTRICAL)
Germany
BSIR 1( 1): 18, 1946-01-11 PERRY, R. L. Report on refrigeration and cold storage plants in Germany 1945 3p Brief report on refrigeration and cold storage methods as well as research in cold storage problems, indicating that no significant advances had been made in Germany. MACHINERY (EXCEPT ELECTRICAL)
Germany
BSIR 1( 1): 18, 1946-01-11 SAUNDERS, O.A. Research and development of engines at Hermann Goering Institute - Volkenrode 1945 4p Research on heat transmission, combustion, flame propagation in pipes, and the measurements of gas temperature, shaft torque, R.P.M., and their applications to engines is summarized briefly in this report. Although work was not yet completed, investigations were of a high order. MACHINERY (EXCEPT ELECTRICAL)
Germany
BSIR 1( 1): 18, 1946-01-11 SEBRA, F. Luftfahrtforschungsanstalt, Hermann Goering-Volkenrode, Brunswick 1945 15p Report of visit to two of the five component institutes of the Herman Goering Research Institution. The work at the Motor Research Institute was under three main headings (a) engine research, (b) heat transfer, and (c) combustion, considerable attention being paid to gas turbines. The work at the Weapon Research Institute was mainly concerned with rocket fuels and gives considerable detail concerning the composition of hypergols and ergols. MACHINERY (EXCEPT ELECTRICAL)
Germany
BSIR 1( 1): 18, 1946-01-11 SIMONSON, E.T. German refrigeration industry 1945 64p Typical refrigeration equipment installations in various plants are described. Refrigerated rooms for test firing ammunition and for engine testing are also described, the latter in some detail and with several diagrams. Equipment manufactured by Linde Eismachinen A.G., is tabulated, briefly described and illustrated by a number of pictures. Brown Boverie equipment is also described. "Complete plans and specifications for the operation of U Boat Type XXI refrigeration equipment were obtained and are available from MIRS as document CIOS/MIRS/104". Research work on air conditioning of military tanks is in file as CIOS/MIRS/107. This work is considered good. Field refrigerators for troop use also considered good. MACHINERY (EXCEPT ELECTRICAL)
Germany
BSIR 1( 1): 18, 1946-01-11 SPOFFORD, WILLIAM P. OSBOURNE, ALAN Report on visit to Mannheim area. Description of plants 1945 3p Brief descriptions of conditions of plants in the area. Heinkel Hirth at Stuttgart, Escher Yyss at Ravensburg and Brown-Bover: at Eberbach were producing jet models or doing work in the gas turbine field. Motorenwerke at Mannheim produced light weight, high speed compact Diesels with precompression cylinders. MACHINERY (EXCEPT ELECTRICAL)
Germany
BSIR 1( 1): 18, 1946-01-11 STELLA, ARTHUR R. The Peugeot organization 1944 29p Report of prewar and wartime production of this industrial organization and particularly of the changes in production attempted by the Germans during their period of occupation. The Peugeot organization includes three main groups: Societe des Automobiles Peugeot at Sochaux (manufacturers of motor vehicles); Societe des Cycles Peugeot at Valentigney-Beaulieu (manufacturers of motor cycles); Peugeot Freres (manufacturers of Hotchkiss armament and tools and agricultural implements). Useful lists included are: names of German firms which removed machinery from Peugeot-Sochaux; list of documents brought back by investigators; information on German firms based on interrogation of workmen deported from Peugeot works. MACHINERY (EXCEPT ELECTRICAL)
Germany
BSIR 1( 1): 18, 1946-01-11 THOMAS, G. YOURY, F.W. German mechanical engineering industry 1945 28p Survey of plants in the mechanical engineering industry. Principal items covered: High pressure steam generators, hammer mills for pulverizing coal, rotary excavators, pumps, crushing, grinding and screening machines (for reducing rubble to fineness suitable for the manufacture of concrete), and hard coal graders. Data include name of firms, personnel, activities, descriptions of important machinery. MACHINERY (EXCEPT ELECTRICAL)
Germany
BSIR 1( 1): 19, 1946-01-11 BARNES, J.W. SUDWORTH, J. Dr. Maurer, V.D.O. Tachometer A.G., Reichelsheim 1945 7p Report of interview with Dr. Maurer, engineer in charge of Reichelsheim, experimental workshop of V.D.O. Tachometer A.G., company manufacturing speedometers before the war. Projects discussed are the buzz bomb (V.1); A.4 rocket (V.2); improved buzz bomb (V.3); V.4 (an air/air rocket with a speed in the vicinity of M[=]0.7-0.8); Glide bomb B.V. 246; air/air rocket (X.4);[and] butterfly (a ground/air version of X.4). ORDNANCE AND ACCESSORIES
Germany
BSIR 1( 1): 19, 1946-01-11 BEAN, C.M. Dynamit A.G. Small arms factory, Stadelin near Nurnburg. Map coordinate M 50/W0 3605 1945 5p The factory produced military ammunition and explosive rivets, ammunition for 9 mm and 8 mm as well as caps for 20 mm and a variety of detonators. The composition used for the explosive rivets was hexanitromannite, tetrazene and aluminum filings. Lead styphnate was produced on the site from styphnic acid via magnesium styphnate and lead nitrate ("rotes trizinat"). Tetrazene was also produced by the interaction of aminoguandine sulfate and sodium nitrite. The method of manufacture of caps is given. Calcium dichlorophthalate was found in quantity, for coloring yellow tracer compositions. The work of the laboratory research is evaluated as not producing any successful cap composition other than those already known. Considerable ballistics research was done but the records were not available at the time of this visit. ORDNANCE AND ACCESSORIES
Germany
BSIR 1( 1): 19, 1946-01-11 BETHELL, P. Chemische-Physikalische Versuchs Anstalt der Kriegsmarine. Explosives and repellents 1945 14P Report on composition and use of underwater explosives. This material was obtained from the explosives section of the C.P.V.A. [Chemische-Physikalische Versuchs Anstalt] Doenisch Nienhof which worked on problems involving explosives in all naval underwater weapons and advised the Army and Air Forces on underwater weapons. (Section corresponds to Division R.E.2c of the United States Navy, Bureau of Ordnance). The following types of high explosives used for main fillings are described: Schiesswelle neue Art S.16 Schiesswelle 18 or S.W. 18 S.17 Variant of S.W. 18 S.18 Schiesswelle 36, or S.W. 36 Schiessewelle 39 or S.W. 39 Compound fillings of S.W. 18 and S.W. 36 Trialen mixtures (Torpex type) Specifications for aluminum powder are given in Appendix A. Information given by C.P.V.A. to Japan is also included. ORDNANCE AND ACCESSORIES
Germany
BSIR 1( 1): 19, 1946-01-11 BRIERLEY, JAMES S. CONSTANCE, P.W. Assessment and partial investigation report on Skoda Werke (Target No. 2/27H) 1945 4p According to company officials, damage of the building containing most of the records and drawings of the Werke at Pilsen, Czechoslovakia, was complete. The investigators, however, believe these records were microfilmed and hidden away, safe and obtainable. Investigation was being done in new guns and carriages in calibre ranging from 5.0 cm. to 42.0 cm.; also development work was done on ammunition components. There is a list of material available for inspection, including a list of development projects and the characteristics of development items. The word "target" in the titles refers to targets for exploitation by Allied intelligence forces. ORDNANCE AND ACCESSORIES
Germany
BSIR 1( 1): 19, 1946-01-11 CARMICHAEL, D. Karl Badstein, D. Ing., Luroper Weg 5, Bringe, Hamburg. Target No. C 2/616. German armament industry 1945 3p Badstein was once attached to GHQ, Berlin, and also worked with Bergmann and Co. as a research engineer. His work included: a hollow charge shell for use in the 7.5 cm. equipment; long range projectiles; new method of making large guns. Apparently, the target number in the title referrs to targets for exploitation identified by Allied powers. The word "target" in the titles refers to targets for exploitation by Allied intelligence forces. ORDNANCE AND ACCESSORIES
Germany
BSIR 1( 1): 19, 1946-01-11 DAY, A. CREWS, J.M. German small arms plants 1945 33p Report of work done and weapons produced during and since the German occupation at Fabrique Nationale d'Armes de Guerre, Liege (manufacturers of small arms and munitions); Pierer, Liege (manufacturers of two-barrelled signal pistol) Societe de Precision Moderne, Paris; and Manufacture Nationale des Armes de Levallois, Paris (gun parts for 30 mm. aircraft gun Type MK 103). Detailed description of operations in the manufacture of 7.9 mm. and 30 mm steel cartridge cases are included. ORDNANCE AND ACCESSORIES
Germany
BSIR 1( 1): 19, 1946-01-11 DR. CHRISTIAN HENRY POLTZ, 9TH ARMY HEADQUARTERS, No.: C 28/1.20, C 2/516 1945 5p Interrogation of Dr. Poltz, specialist on smooth bore shell fin stabilized and fired at high muzzle velocity. The purpose of the interview was to obtain details concerning the organization of the Heereswaffenamt (German High Command Armament Research and Development Department). Note the numbers in the title apparently refer to the list of targets for exploitation by allied intelligence forces. ORDNANCE AND ACCESSORIES
Germany
BSIR 1( 1): 19, 1946-01-11 FISHER, RUSSELL A. Italian anti-tank shoulder weapon 1944 5P Description and diagram of an armor piercing anti-tank weapon capable of being fired from the shoulder. The weapon is designed for a low velocity high explosive projectile. ORDNANCE AND ACCESSORIES
Germany
BSIR 1( 1): 19, 1946-01-11 HICKMAN, C.N. Pictorial report V-1 launching system 1945 24p 35 photographs and brief description of V-1 launching sites and equipment, with emphasis on method of launching the robots. ORDNANCE AND ACCESSORIES
Germany
BSIR 1( 1): 19, 1946-01-11 HICKMAN, C.N. V-1 Launching Sites 1945 12p A chronological record of a 6-day expedition to visit V-1 rocket launching sites. Attached are two diagrams- 1. the slotted tube running the full length of the ramp as it is placed thereon and 2. the piston inside the slotted tube. ORDNANCE AND ACCESSORIES
Germany
BSIR 1( 1): 19, 1946-01-11 HICKMAN, C.N. Visit to underground V-1 manufacturing plant 1944 8p Illustrations and description of underground plant located in an iron mine near Verdun, designed mostly for manufacture of fuselage parts of the V-1 bomb. ORDNANCE AND ACCESSORIES
Germany
BSIR 1( 1): 19, 1946-01-11 HINES, G.H. and MESHANE, E.H. Researches of Col. J. N. Bingen 1944 17 p Results of interview with Col. Bingen (Belgian) on his research, the results of which he had offered to the British Government. 1. An ultra-chronograph which is said to be capable of measuring short time intervals with an accuracy of 0.5 seconds. When used in conjunction with special breakscreens on a short base it provides a convenient method of measuring M.V. of guns at all elevations with the accuracy required for experimental or calibration firings. 2. Col. Bingen developed a theory whereby multi-ply glass can be made bulletproof. In his experiments he made up windows for aircraft, which are 80 mm thick, and composed of laminations of glass and resin plastic of graded thicknesses. 3. Col. Bingen described some experiments on the rupture of stretched steel wires by falling weights striking transverse to the wire, and proposed the use of such wire and springs for use to protect targets from attack by light (incendiary) bombs. Col Bingen'. notes on this ultra chromograph and on these experiments are included in this report. Ordinance and Accessories
Germany
BSIR 1( 1): 20, 1946-01-11 HOLMES, J.G. and others Interrogation of Herr Stiele von Heydekampf. German tank and engine program 1945 9 p Von Heydekampf indicated the German tank program had three influences: the desire for powerful guns and thick armor; the trend toward gun carriages of limited traverse; economic considerations. He gave information on a weapon carrier, the engine program and transmissions. Ordinance and Accessories
Germany
BSIR 1( 1): 20, 1946-01-11 LIEBHAPSKY. H.A.. NORRIS. R.H., and BULL, E.H. Bayerische Motor Werke (BMW) 1944 10 p A report on the features of a German station for stationary tests on rocket motors. Some 6000 rocket-fuel combinations were tested: nitric acid was the only oxidant used in these tests but many reducing agents (fuels) were tried. Electrical measurements of thrust were made, but absence of the German operators made definite scientific data impossible. Contains several plates. Ordinance and Accessories
Germany
BSIR 1( 1): 20, 1946-01-11 LIVINGSTON, C.S, and RECHEL, B.R. Dynamit A.G. Plant at Sohulebusch. Artillery and weapons (explosives and repellents) 1945 4 p Brief description of an experimental T.N.T. plant that had refined completely undamaged. Nitration and purification processes are discussed in some detail and illustrated by 2 diagrams. Ordinance and Accessories
Germany
BSIR 1( 1): 20, 1946-01-11 LLOYD, P. Technische Akademie der Luftwaffe, Eckertal 1945 4 p Very brief report on Prof. Leist's and Nagel's research in jet propulsion. Projects at Eckerstal are briefly described: Law tension ignition system; ignition and stability of turbine combustion; torah igniter using fuel of the Riedel starter; tests on alternative fuels.
Germany
BSIR 1( 1): 20, 1946-01-11 LLOYD, P. Technische Akademie der Luftwaffe, Eckertal 1945 4 p Very brief report on Prof. Leist's and Nagel's research in jet propulsion. Projects at Eckerstal are briefly described: Law tension ignition system; ignition and stability of turbine combustion; torah igniter using fuel of the Riedel starter; tests on alternative fuels.
Germany
BSIR 1( 1): 20, 1946-01-11 MAGRUDER, L.B., Jr. Eisenwerke Oberdenau; documents and equipment listed 1945 3 p This Linz, Austria, plant has electric, open hearth, and Bessemer melting facilities, practically all the Bessemer steel being used for steel castings (principally for miscellaneous automotive parts at Steyr). The plant last: excellent modern one which was apparently designed for the production of armor and fabrication of major armored vehicle components. Lists are included f personnel interviewed, equipment evacuated and documents removed, Including a general assembly drawing of the Maus, 200 ton tank. Ordinance and Accessories
Germany
BSIR 1( 1): 20, 1946-01-11 MARTIN;, C.C., Jr. CONSTANCE, P.W. Planning board of Reich Research Council 1945 5 p This report gives information obtained at this organization (located in Lindon) which controlled all development and research activities within Germany and occupied countries. The Board maintained files of all research projects, institutions and personnel and records of results. Information was also obtained on certain specific research Projects, including: 1. An aerial rocket about 10 inches in diameter to be fired from fighter or fighter-bomber air-craft against bomber formations; 2. a similar aerial which uses the same body and propelling charge but a differentently constructed warhead; 3. Central mechanism end testing apparatus for accoustically guided torpedo GTE; 4. An anti-personnel weapon for use against infantry; 5. An anti-aircraft device. Ordinance and Accessories
Germany
BSIR 1( 1): 20, 1946-01-11 MORTENSEN, M.A. Seewerkes, Immenstaad Der Luftschiffbau Zepplin GmbH, Friedrichshafen 1945 5 p Report on Seewerke, established as an aircraft torpedo proving range and overhaul shop in 1942. Torpedoes to be proved were: LTIA-1, 2, and 3 and LTIB-1,2,3, and 4 and for acoustic systems. Ordinance and Accessories
Germany
BSIR 1( 1): 20, 1946-01-11 ROOP, W.P. German torpedo motor fluid (Ingoline) 1945 13 p German navy directives relating to the delivery of motor products for "ingoline" torpedoes. In French, with English translation attached. Ordinance and Accessories
Germany
BSIR 1( 1): 20, 1946-01-11 ROOSEVELT, C.V. The status of synthetic training in Germany 1945 9 p An evaluation of German military synthetic training methods and equipment. Potentialities of synthetic training were not fully appreciated by the German armed forces. Most of the trainers found would not be valuable to the American armed forces since they train only for German equipment or are inferior to devices already used here. Ordinance and Accessories
Germany
BSIR 1( 1): 20, 1946-01-11 SIMPSON, J.W., and TAILOR, G.W.R. Rheinmetall-Borsig Works, Unterluss; artillery and weapons 1945 7 p Report on the following artillery equipment or parts of equipment seen at this main testing range for all Rheinmetall Borsig guns: 5.5 cm. Automatic Equipment Flak MK.58 and Flak MK.59; 88 mm. Flak, remote power controlled mounting; 75 mm, pack howitzer; 37mm. A/TK.. equipment; 75 mm. pak 41 with muzzle squeeze; and 88 missle charging device.
Germany
BSIR 1( 1): 20, 1946-01-11 SMITH, FRED B. Vereinigte Apperattebau Aktiengesellschaft, a subsidiary corporatiom of Rheinmetall Borsig Aktiengesellschaft (Target No. C 19/191). Description of plant and personnel 1945 2 p Outlines visit to Wurzen, Grimma and Trebsen, the personnel visited and their duties. The Vereinigte Apparattebau Aktiengesellschaft was responsible for design of all army artillery carriages. Also visited was Dir. Edouard Mueller who was in charge of design of naval guns and mountings until Sept. 1, 1944.
Germany
BSIR 1( 1): 20, 1946-01-11 TEUTSCH, KURT Bleichert transportanlagen Gmb H, Leipzig, N 22, Kaiser Friedrich Str.34 1945 2 p Report on the condition of the Bleichert establishment, Target No. C 2/525, and of the production there of flak grenades and axles for the German infantry gun 1942. There were removed grenades and machines and the entire secret correspondence with the Oberkommando der Wehrmacht. Lists documents and equipment removed from XIVth Flakdivision and 4th Eisatzbattallion, Leipzig-Sohnau.
Germany
BSIR 1( 1): 20, 1946-01-11 WERNISCH, GEORGE Robot bomb factory, Thill, Luxembourg 1945 5 p Description of an iron mine which had been in the process being converted into an underground factory. Ordinance and Accessories
Germany
BSIR 1( 1): 21, 1946-01-11 AGAR, J.N. German anti-fouling compositions 1945 5 p A short review of German research on anti-fouling materials. Principal research activity during war was an attempt to reduce the content of copper and mercury in the anti-fouling composition, as these metals were in short supply and success was achieved. Research also carried out on the theory that fouling should not occur on positively charged but results at War's end were inconclusive. Primary Metal Industries
Germany
BSIR 1( 1): 21, 1946-01-11 COLCLOUGH, T.P. I. G. Farben - Oppau Works - Ludwigshafen 1945 15 p

Description of condition of plant and process of production of both carbonyl nickel and carbonyl iron powder at Oppau Works. Manufacturing method is based on principles whihc were developed by Mond Nickel Company in the manufacture of nickel and whihc have been adopted in recent installations of the production of Carbonyl Iron Powder in the U.K. and the U.S.

Both iron and nickel under suitable conditions of temperature and/or pressure combine with CO gas to form a Carbonyl and by variation of the temperature and/or pressure, these Carbonyls decompose witht he liberation of CO gas, which is recirculated, and the decomposition of metal.

 Primary Metal Industries
Germany
BSIR 1( 1): 21, 1946-01-11 DOVE, A.B. Elektrowerk-Weisweiler 1945 16 p Report on plant located at Weisweiler, near Eschweiler, indicating the plant had operated on ferro-alloys of silcon, manganese, chrome, molybdenum and tungsten. The report covers the plant layout, present equipment in plant, characteristics equipment in plant, list of equipment removed to other plants, electrical characteristics of furnaces, and data regarding number of furnaces operating from May 1943 to close of operations, about Sept. 6, 1944. There are photographs and a sketch. Primary Metal Industries
Germany
BSIR 1( 1): 21, 1946-01-11 WAGNER, EDMOND H., IVORY, W., and HOLMES, J.G. Tungsten carbide plants 1945 4 p Report on two French Tungsten Carbide Plants: Messrs. FILIERE UNION and SOCIETE L' LORRAINE DE CHARBON POUR L'ECTRICITÈ, both located in Paris. The firms were engaged in the production of cores for projectiles during the war. The report covers: Sources of raw materials, processes, plant, products, German activities. The appendix shows a table "New German Code-1941".--(Tool tips mad dies). Primary Metal Industries
Germany
BSIR 1( 1): 21, 1946-01-11 ALDRICH, R.C. Polhoehe measurement of lubricating oil 1945 4 p "Polhoehe" value is related to viscosity index. The method of determining the "Polhoehe" value of an oil is given. A nomograph taken from "Lubrifiants" a French booklet (File CIOS/MIRS/102) used for determining "Polhoehe" values is reproduced. Products of Petroleum and Coal
Germany
BSIR 1( 1): 21, 1946-01-11 ATWELL, H.V., and SCHROEDER, W.C. Steinkohlen-Bergwerk Rheinpreussen Moors-Meerbeck. Fuels and lubricants. CIOS target no. 30/5.05 1945 152 p Description of the Fischer-Tropach plant of the Steinkohlen-Bergwerk Rheinpreussen, giving details of the coking, synthesis and alcohol plants; listing annual production of primary products; giving information regarding other synthetic fuel plants. Data and distribution of the following products are given: liquefied gas (Flussiggas: Treibgas). stabilized benzine (Grund Benzin), Diesel fuel, Kogasin, hard paraffin and Gatsch. There are included 27 figures, 23 tables and appendices, A. listing seised documents; B. giving translations of documents relating to research activities; C. documents relating to relocating Moers equipment; and D. abstracts of patent applications relating to the Fischer Trobach process. Products of Petroleum and Coal
Germany
BSIR 1( 1): 21, 1946-01-11 COCHRAM, C. Gelsenburg A.G.-- bituminous coal hydrogenating plant 1945 5 p This plant hydrogenated bituminous coal at 700 ats. Some 2,000 - 4,000 tes/months of tar oils, mainly middle oils, were also processed. The petrol and middle oils made from coal and tar oils were treated in the vapour phase at 300 ats. pressure making petrol of 55% volatility of 100℃. and F.B.P. 155-160℃; the clear octane number was 72. Publication gives a description of the process. Products of Petroleum and Coal
Germany
BSIR 1( 1): 21, 1946-01-11 COTTON, ERNEST Preliminary oil team report on Ammoniakwerke Merseburg, GmbH plant on I. G. Farbenindustrie A.G. at Leuna, Germany 1945 2 p This is a general chemicals and synthetic oil plant manufacturing several products, such as synthetic aviation fuel, synthetic motor fuel, synthetic lubricating oil, fixed nitrogen, synthetic alcohols, and other chemicals. Brown coal is the principal starting material although some hard coal is used. Products of Petroleum and Coal
Germany
BSIR 1( 1): 21, 1946-01-11 EVANS, LOUIS P. Dipl. Chem. Paul Schneider 1945 3 p Dr. Schneider directed the production of fuels and lubricants from all sources throughout greater Germany during the war. Paper gives a brief description of the organization which he headed, as well as the types of products produced. Products of Petroleum and Coal
Germany
BSIR 1( 1): 21, 1946-01-11 FORAN, E.V., and ALDRICH, R.C. French shale oil industry 1945 51 p

This report based on an inspection trip of French units and pilot plants, deals primarily with methods of distilling shale with secondary consideration to the question of crude oil recovery. Subjects treated includes survey of oil shale resources, description of processes at distillation plants, summary of characteristics of products obtained. The following plants are described in detail: Societe Miniere des Sohistes, Autun; Societe Chimique de la Grande Parcisse, St. Hillaire; Petit Furnace; Societe Bitumes et Sohistes, Lavernke.

Appendices contain additional technical information including a detailed report of the Schist oil output at Autun and diagrams and flow sheets illustrative of distillation processes.

 Products of Petroleum and Coal
Germany
BSIR 1( 1): 21, 1946-01-11 FRASER, D.S. and others Interrogation of Drs. Julius Schmitt, Ludwig Schmitt, and Heinrich Schmitt, of Dr. Heinrich Schmitt-Werke, K.G., Berchtesgaden 1945 3 p Visit with Dr. Heinrich Schmitt, inventor of Schaumkohle (foamed coal) and his two brothers. The invention comprises wetting coal screened from 0.2 to 1.0 mm. with 4-10﹪ of a thermo-setting resin, such as phenolic resin. The foamed coal thus obtained with its high reactivity and permeability was claimed suitable for stationary and venicular gas producers, in gas engines and rockets, etc. Dr. Schmitt also gave information on artillery-shell cases made so as to fire an 88 mm. shell from a 105 mm. gun, the range being increased from 8 to 16 km. Products of Petroleum and Coal
Germany
BSIR 1( 1): 21, 1946-01-11 GETZ, C.A. and PFEIFFER, E.V. Report on coal-stripping method and equipment in Germany 1945 3 p Report on an unusual coal strip mine method: General description of construction and operation. Products of Petroleum and Coal
Germany
BSIR 1( 1): 22, 1946-01-11 GUNTHER, A.E. Germany and Austria, liquid fuels II. Crude oil production group 2B, chief producing companies 1945 5 p This report is an account of the relations which existed during wartime between the owners and operators of the Heide-Meldorf group of oilfields, the Deutsche Erdöl Aktiengesellschaft, and the German Navy. Drilling and production of oil wells was an ordinary commerical undertaking with the Navy as the largest consumer. Under a Navy contract attempts were made to produce oil by mining and distillation from a strongly impregnated chalk of Cretaceous (Senonian) age, called "Oil Chalk". Contract was never fulfilled due to technical difficulties and success of allied bombing. British Military Government have ordered Deutsche Erdöl to continue with mining of "Oil Chalk" for use as a substitute fuel. Products of Petroleum and Coal
Germany
BSIR 1( 1): 22, 1946-01-11 HALL, C.C. and POWELL, A.R. Krupp Treibstoffe Werke GmbH Wanne-Eickel - Fuels and lubricants 1945 8 p

This report is in two parts. I. Fischer-Tropsch Plant. II. Krupp-Lurgi Low Temperature Carbonization Plant. I. was badly damaged.

I. Production and purification of synthesis gas is described, and composition of the gas given. The synthesis process and apparatus is described in some detail. A drawing of the medium pressure oven is reported to have been obtained. Products are given on a percentage basis, and use indicated. Capacity about 65,000 tons per year.II. Description of the coking chambers given in some detail. Coking capacity of plant - 20,000 metric tons of owl per month. By-products briefly mentioned.

 Products of Petroleum and Coal
Germany
BSIR 1( 1): 22, 1946-01-11 HOLROYD, R. Visit of CIOS team to oil centers in Leuna, Lutzkendorf, Zeitz, Bohlen, Stressfurt, and factories in Russian occupied territories 1945 6 p Report on German synthetic fuel production and description of processes and production of synthetic fuels at the above listed plants and at Blechhammer, Brux, Politz, Heiderbrech, Moosbierbaum, and Ludwigshafen/Oppau. Adoption of automatic control and the use of a falling temperature gradient contributed to an increase in coal throughout at the Leuna hydrogenation plant. The chief research and development work at Leuna has been in connection with production of high aromatic content gasoline. Synthesis gas and hydrogen were made at Lutzkendorf by the Winterschall-Schmalfeldt process. At Blechhammer a pressure process was used for conversion of water gas to hydrogen. Products of Petroleum and Coal
Germany
BSIR 1( 1): 22, 1946-01-11 HOWES, D.A., ALLEN, J.G., and SCHINDLER, HANS Wirtschaftliche Forschungs GmbH - Stassfurt and Bad Berka 1945 7 p Detailed description of underground blending station at Strassfurt for the blending of motor gasoline and Diesel oils. Motor gasoline is blended from Hydro gasoline with or without benzol, plus TEL. Specifications are given for aviation diesel oil, for jet propulsion fuel, and for lubricating oil. A briefer note on the Bad Berke station, which had suffered damage by bombing, and a list of three other stations are also included. Products of Petroleum and Coal
Germany
BSIR 1( 1): 22, 1946-01-11 JONES, B.F. and others Wirftschaftliche Forschungs GmbH (WIFO), Pferdebachtat, Heiligenstadt 1945 5 p Descriptions of the installations and of the Wifo are given. This appears to have been a distribution center for gasoline and benzol, as well as a center for blending oils and is made of the organization of the Wifo. Products of Petroleum and Coal
Germany
BSIR 1( 1): 22, 1946-01-11 KUHNE, PAUL K. Preliminary oil team report on I.G. Farbenindustrie, Heidelberg 1945 3 p Method of preparation of aviation gasoline generally being followed in Germany where bituminous coal or brown coal is hydrogenated in several stages. The final blend with 5.6 Tel/Imp. gal. tests 95-96 octane no., Motor method, and 150 blending index, rich rating. This was obtained by the use of the D.H.D. process, involving operation with a moving catalyst bed. With the single step hydrogenation process, T.T.H. process, brown coal tar is hydrogenated in the liquid phase with 5055 catalyst yielding a low quality gasoline, 55 octane no., diesel oil and wax. The wax is well suited for synthetic lubricating oil manufacture by cracking to olefins, polymerizing with aluminum chloride and clay finishing. Products of Petroleum and Coal
Germany
BSIR 1( 1): 22, 1946-01-11 MAINE, G. Oil and Gas Fields in the County of Bentheim and Adjacent Counties 1945 4 p Detailed account of oil and natural gas fields in Bentheim county and adjacent counties of Meppen and Steinfurt, all near the German-Dutch border. Information on ownership, location, production, pipe lines, transportation, wildcatting areas. Products of Petroleum and Coal
Germany
BSIR 1( 1): 22, 1946-01-11 MURRAY, R. L. Dr. F. Raschig GmbH Chemische Fabrik Ludwigshafen Am Rhein 1945 6 p Report of visit made to plant producing the following products from coal tar; distilled tar for roads, middle oil, products from aqua ammonia, heavier oils for wood impregnation, benzol wash oil, coal tar pitch (for briquetting), miscellaneous fine chemicals, phenol formaldehyde moulding powders, phenol formaldehyde cast resins, plywood adhesives. Description of processes and production capacities is given. Synthetic phenol was produced by chlorination of benzene with HCL and air over a catalyst followed by catalytic hydrolysis the chlorobenzene with steam, thus regenerating the HCL. Products of Petroleum and Coal
Germany
BSIR 1( 1): 22, 1946-01-11 ODELL, WILLIAM W., and BALDESCHWIELER, EMILE L. French oil shale industry 1945 9 p This report describes oil shale distillation plants inspected at Autun, St. Hilaire, Lavernhe and Severac-le-Chateau and the Petit Retort developed at Grenoble. The Pumpherston type of retort used at Autun which exactly duplicates the Scotch units, has been superseded by unit developed at St. Hilaire known as Lantz retort. This apparatus is vertical, comprised of two distinct but connecting sections, each section traversable by a gas stream. Mareceaux retort used at Lavernhe and Severac-le-Chateau is vertical and comprises two concentric upright cylindrical shells which confine between them a mass of downwardly moving crushed shale. Crushed shale is charged into the upper portion of the retort and discharged continuously at bottom. The Petit Retort has been operated only on a pilot scale. In this process the oil wetted shale passes through a horizontal rotating, externally heated, cylindrical retort comprising two concentric cylinders. cylinders. Products of Petroleum and Coal
Germany
BSIR 1( 1): 22, 1946-01-11 ORIEL, J.A. Oil tragets in Ruhr and Hanover areas 1945 23 p Description of the underground lubricating oil plant at Porta; refinery of the Deurag/Nerag at Misburg; Nienhagen and neighboring oil fields; underground hydrogenation plant in the Bueckeberg Mountains; Ruhr Chemie installation at Holten. Lists of batch and dispersed distillation plants are given. This report also includes a detailed description of the process for the dehydrogenation of the paraffins for the manufacture of "0.X.0." at the Ruhr Chemie installation at Holten. Products of Petroleum and Coal
Germany
BSIR 1( 1): 22, 1946-01-11 ORIEL, J.A. Report on a visit to oil targets in the Ruhr and Hanover areas 4 to 21 April 45 1945 2 p Gives list of "Ofens", dispersed refineries, "Rosts", smaller batch still distillation equipment, "Dachs" under ground lubricating oil plants, "Taube", cracking. plants, and "Jacob", primitive cracking plant working in conjunction with an "Ofen". Products of Petroleum and Coal
Germany
BSIR 1( 1): 23, 1946-01-11 ORIEL, J.A., HORNE, W.W., and JONES, J.P. Dach I, lubricating oil plant, Porta, Germany 1945 8 p This report describes equipment and processes in an almost completed underground plant to produce aviation lubricating oil from topped crude oil. The plant consisted of these five units: 1. Distillation - to be carried out in a two stage Coubrough unit; 2. Extraction - neutral and bright stocks more to be furfural extracted for the work up of aviation lubricating oils; 3. Dewaxing - unit is a recent design of Edeleanu Gesellschaft, using methylene dichloride and ethylene dichloride as solvents followed by a continuous band filter; 4. Clay contacting - oil to be batch clay contacted; 5. Clay extraction - batch naphtha extraction of used clay. Digram of plant and photograph of its main entrance are given. Products of Petroleum and Coal
Germany
BSIR 1( 1): 23, 1946-01-11 ORIEL, J.A. N. V. Internationale Maatschappij Hyderringstechniek & Chemie. International Hydrogenation Engineering & Chemical Co., and International Hydrogenation Patents Company. The Hague, Holland) 1945 2 p This organization is the joint concern of the Standard and Shell oil groups, being a holding company for patent rights applicable to oil hydrogenation and gas synthesis. The company had agreements with I. G. Farben and Ruhrchemie. A very brief description of the patent situation is given. Products of Petroleum and Coal
Germany
BSIR 1( 1): 23, 1946-01-11 PECK, E.B. Dr. Karl Winkler, Technical Director of Continental Oil A.G. C.30/154 1945 1 p Gives some information about Continental Oil A.G., a holding company with business devoted to petroleum in occupied countires: Balkan States, Rumania, and Carpathiam (Poland and Czechoalovakia). Developments mentioned are extraction of wax (Montan) tram Sapropil in Latvia, and low temperature distilation of peat. Products of Petroleum and Coal
Germany
BSIR 1( 1): 23, 1946-01-11 SHERWOOD, T.K. Wirtschaftliche Forschungs GmbH Eferbachtel fuel blending station 1945 5 p Brief report on a German Army Depot used for blending, testing, and packaging fuels and lubricants. The fuels were mostly from the Fischer-Tropsch synthesis. Rough specifications are given for motor fuel, benzene, Diesel fuel, automotive lubricating oil, gear oils. lubricating oil, gear oils. Products of Petroleum and Coal
Germany
BSIR 1( 1): 23, 1946-01-11 SMITH R.H. and others Kohle-Oel-Union Von Busfg Kommanditgesellschaft (oil recovery from shale) 1945 2 p Evaluation report of plant at Schorzingen, Wurtemburg, producing 7 tons per day of oil by underground mining and underground distillation of shale. Products of Petroleum and Coal
Germany
BSIR 1( 1): 23, 1946-01-11 TETT, H.C. Luftfahrt Forschungs Anstalt Hermann Goering Mr. Volkenrode Brunswick - Interrogation of Prof. Schmidt & Prof. Lutz: Fuels and lubricants 1945 2 p Brief description of personnel and research carried on at laboratory. There is no evidence of a practical nature on fuels and lubricants. Products of Petroleum and Coal
Germany
BSIR 1( 1): 23, 1946-01-11 TETT, H.C. and DEES, H.C. I. G. Farbenindustrie A.G. Ludwigshafen A, G., Oppau. Fuels and lubricants testing and development 1945 4 p Report on personnel, facilities, documents and research and development activities at the Laboratory at Oppau. A broad survey of the research activities is contained in this report and includes work with rocket, jet and diesel fuels, lubricants and aviation gasoline. Mention is made of preparation of synthetic oils for jet aircraft and rockets. Products of Petroleum and Coal
Germany
BSIR 1( 1): 23, 1946-01-11 VINCENT, J.W. Laboratories of Bataafsche Petroleum Maatschappij (B.P.M.) 1945 5 p Brief description of the research carried on by the Laboratory during the war, and the methods taken to maintain staff and carry on this research. Report lists chief research problems handled. Products of Petroleum and Coal
Germany
BSIR 1( 1): 23, 1946-01-11 WATSON, H.E. Dr. Asser (Sen.) Research and development: yield and quality of natural resins, coal tar products by low pressure distillation, etc 1945 2 p Report of research and development work of Dr. Asser in improvement in yield and quality of natural resins and improvement of the yield of useful products from coal tar by low pressure distillation. He has also worked out a system of collecting and regenerating waste lubricant oil which failed owing to official interference. He has produced a special resin with low pressure. By the same process he has recovered useful resins from brewery pitch; he has made a lanolin substitute from high melting paraffins and soft lacquers from resinous lubricating oil residues. He has also worked out an improved method of bonding plywood, using mixed bakelite and urea resins. The in principle of the resin process is extraction of the resin instead of tapping and the residue is then suitable for sulphate or sulphite pulp. Products of Petroleum and Coal
Germany
BSIR 1( 1): 23, 1946-01-11 CALVERT H.S., SPEAK. G.S., and DUNCAN, C.J. photographic lenses and optical instruments 1945 27 p Report on visits to 17 establishments in the Paris area in December 1944, with mention made of those firms not visited. Categories of investigation wore the following: lenses and optical instruments, optical glass, air cameras, cine cameras, electronic equipment, aerodrome and aircraft lighting and color filters. Professional, Scientific, and Controlling Instruments, Photographic and Optical Goods, Watches and Clocks
Germany
BSIR 1( 1): 23, 1946-01-11 CHANCELLOR, P.M. Film production and methods. AGFA Film 1945 55 p This is a full report of manufacturing data and finished products by the plant responsible for two thirds or more of the photographic films and plates used in Germany. Special attention is given to the only now product used experimentally by the Luftwaffe- the Agfa color aero-negative material with its corresponding Agfa color positive transparency and paper print materials. This material seemed superior in some respects to the amateur Rodacolor negative film used in the United States. Supporting data such as formulae of the dye couplers, sensitizers, processing chemicals, filters and instructions for use are included. Information is also given on the relations which Agfa had with the Japanese film industry. Professional, Scientific, and Controlling Instruments, Photographic and Optical Goods, Watches and Clocks
Germany
BSIR 1( 1): 23, 1946-01-11 CLARK, R.E. Preliminary report on CIOS Trip No. 311 Wendelstein - Description of Heimholtz Institute; Development of measuring instruments 1945 3 p List of projects at the Helmholtz Institute: (1) Measuring blood pressure during exposure to shook waves. (2) Measuring the change of velocity of air by disturbance of the predischarge of a spark gap. (3) Measuring of resonance of the human breast. (4) Measuring quick changes of temperature occuring with shock waves. The institute also had an experimental range and a hospital where animal reactions to shock waves were studied. No details given. Professional, Scientific, and Controlling Instruments, Photographic and Optical Goods, Watches and Clocks
Germany
BSIR 1( 1): 23, 1946-01-11 BOUNDY, R.H. HASCHE, R.L. Report on visit to I.G. Farbenindustrie plant at Höchat / Main 1945 16 p Report of a visit to I.G. Farbenindustrie plant of Höchat to obtain information on solvents, plastics and miscellaneous chemicals. Report gives a description of the process for manufacturing vinyl acetate by a vapor phase catalytic process from acetic acid and acetylene. Descriptions are also included of the manufacture of glycerol by liquid phase reduction of hexoses, the synthesis of n-butanol from acetaldehyde, and the production of various Mowiliths by polymerization of vinyl acetate. Contains several diagrams. Chemicals and Allied Products
Germany
BSIR 1( 6):191, 1946-02-15 FARBENINDUSTRIE, I.G. WERK, ELBERFELD Methods, processes, and patents of I.G. Farbenindustrie Werke, Elberfeld 1930 1937-1945 271 p A series of documents containing patents, and descriptions of methods used in the I.G. Farbenindustrie plant at Elberfeld. These cover a variety of chemical and pharmaceutical topics. In German. Chemicals and Allied Products
Germany
BSIR 1( 6):191, 1946-02-15 GREGORY, A.S. FOGLER, MAYOR Current status of German synthetic nitrogen fertilizer industry US Army Intelligence Division Report4058 . 1945 37 p During the period 1-9 June, 1945, the more important fertilizer nitrogen plants in Germany were visited by Lt. Col. A.S. Gregory and Dr. Mayor Fogler, Technical Representative with C.W.S.[Chemical Warfare Service], to determine the present condition of the plants and to obtain estimates of how much fertilizer nitrogen will be available for the fertilizer year, 1945-46. The report gives a list of the plants visited and of the more important personnel interviewed at each plant. A short summary of each of the plants visited is given In Section II of the report, and details of the production of each are listed in the appendices. Information furnished by other investigators concerning the nitrogen plants in the Rühr is included in Section III. Section IV gives a brief survey of the function of the Stickstoff Syndikat. This survey did not include a study of the cyanamide plants which are reported to have had a normal capacity of approximately 190,000 tons of nitrogen annually. These plants are being studied by another team, and will be transmitted when available. Plants visited were I.G. Farbenindustrie A.G., at Ludwigshafen-Oppau, Höchst, Merseburg-Leuna, Bitterfeld and Wolfen; Rühr Ammonia Plants: Bergswerksgesellschaft-Hibernia A.G., Wanne-Eickel; Gewerkschaft-Viktor Stickstoff und Benzinwerke, Castrop-Rauxel; Gewerkschaft des Steinkohlenbergwerk-Ewald, Oer-Erkenaehwick ; Rühr Chemie A.G., Oberhausen-Holten; Mine Friedrich der Grosse. Chemicals and Allied Products The Chemical Warfare Service of the US Army was later renamed the Chemical Corps. For Appendix III, see PB 1780.
Germany
BSIR 1( 6):191, 1946-02-15 HIRSCHKIND, W. German chemical industry with special emphasis on the eastern territory, The 1945 6 p A short history of the formation and growth of I.G. Farbenindustrie with emphasis on the chemical industrialization of eastern Germany. A list is included of the principal chemical plants of eastern Germany with their capacities. Chemicals and Allied Products
Germany
BSIR 1( 6):191, 1946-02-15 HIRSCHKIND, W. Wartime production of some important organic chemicals in Germany 1945 9 p Production figures for calcium carbide and its derivatives, acetone, ethylene and its derivatives, methanol and formaldehyde at the various plants in Germany are given in this report, together with the ultimate uses of the various compounds. Emphasis is placed on the production of ethylene and its derivatives, such as diglycol and glycol. Chemicals and Allied Products
Germany
BSIR 1( 6):191, 1946-02-15 KRAUSEN, R.S. Lonal Werke, GmbH, Berlin 1945 8 p Report of a visit to Lonal Werke, Berlin, a construction and engineering consulting firm, whose equipment and laboratories were dismantled during the Russian occupation. Investigation centers on work of the research and development chemistry laboratory. Various projects in the field of chemical warfare were carried out, such as resin coatings for paper impervious to vesicants, and laboratory preparation of small quantities of CW gases for training purposes. Distillation of arsenical oils is described, as well as the process and production of diphenylarsine oxide. There are 3 sketches illustrating these processes. Chemicals and Allied Products
Germany
BSIR 1( 6):191, 1946-02-15 MASSO, W.P. Chemical analysis of solder from German JU-88 oil cooler Army Air Forces Experimental Engineering SectionEXP-M-57-525-43 1941 1 p Brief memorandum report. Chemicals and Allied Products
Germany
BSIR 1( 6):191, 1946-02-15 PACKER, HOWARD German corrosion preventive compound. Army Air Forces Engineering DivisionENG-57-518-157 1943 1 p An analysis of a sample of German corrosion prevention compound. 84%, heavy oil; 11%, aluminum soap; 4½%, residue (inorganic matter). Chemicals and Allied Products
Germany
BSIR 1( 6):191, 1946-02-15 TARR, P.R. Production of hydrofluoric acid at Stulln (Bavaria) US Army Intelligence Division Report4109 1945 2 p Dr. Hans Neumark, CWS Hq USFET [Chemical Warfare Service, Headquarters, US Forces European Theater], visited the Riedel de Haven plant at Stulln on 25 August, 1945, and interrogated Dr. Forche and Mr. Grunter, from whom the information contained in this report was obtained. The plant for the production of anhydrous H. was constructed by Riedel de Haven in the immediate vicinity of the fluorspar mines of the Vereinigte Fluss-potgruben at Stulln during 1944. The first unit of the plant with a capacity of 180 tons of 100% RFD was just completed at the end of the war but never put into operation. A second unit was only partly completed. Raw materials used were fluorspar (containing 96% CaF₂, a maximum of 2% SiO₂ and small amounts of BaS₄ and organic matter) and 100% H₂SO₄. This report discusses the process of manufacture. Chemicals and Allied Products The Chemical Warfare Service of the US Army was later renamed the Chemical Corps.
Germany
BSIR 1( 6):191, 1946-02-15 TURNOCK, L.C. Lonal-Werk GmbH, Hahnenberg (Leese) Germany 1945 6 p Report gives the organization of the Lonal-Werk and its relationship to various other companies in Germany and to the Oberkommando des Heeres. The present conditions and activities at Hahnenberg included the generation of electrolytic oxygen and hydrogen for use in welding. Plant was set up to manufacture diphenylchloroarsine, but project never went into production. The Oberkommando des Heeres was the German Army High Command during World War II. Chemicals and Allied Products
Germany
BSIR 1( 6):191, 1946-02-15 TURNOCK, L.C. Wolff and Company, Bomlitz, Germany. Preparation of nitrocellulose - Adamsite flakes 1945 6 p Description of method of preparing flakes from a mixture of nitrocellulose powder and Adamsite. Preparation consists of three principal steps: (1) Water is completely removed from the nitrocellulose powder; (2) water free powder and Adamsite are thoroughly mixed in the correct proportions with acetone and a stabilizer, diphenylamine; and (3) constituents are thoroughly mixed and the doughy mixture is extruded through a die into a continuous sheet which is air dried. Sheet is then cut into flakes. Attempts have been made to produce similar flakes with nitrocellulose powder and chloroacetophenone, but no information as to effectiveness and performance was obtained. Chemicals and Allied Products
Germany
BSIR 1( 6):191, 1946-02-15 CHASMAN, BERNARD Creep and time-fracture strength of plastic materials under tensile stresses Army Air Forces Technical Report4989 1943 2B p The use of plastic materials in aircraft may result in unusually high deformation, compared to metals, due to the comparatively low modulus of elasticity and to creep and fracture which may occur, even at room or slightly higher temperature. An investigation of creep and time-fracture properties of plastics was undertaken to make possible more efficient use of these materials. Both short time (1000 hours) and long time (2 years) tensile tests were performed on thermoplastic and thermosetting plastic materials. Chemicals and Allied Products
UNITED STATES
BSIR 1( 6):192, 1946-02-15 LADD, JOHN H. Safety firing circuit 1945 10 p The circuit was used by the Research and Engineering Branches of the Chemical Warfare Service at Huntsville Arsenal, Alabama, Fred Project. it was developed during CWS studies of chemical reactions as sources of power. In part of these studies one or more chemicals were injected into a combustion chamber and various physical measurements were made. The rapid sequence of operations during each test was coordinated by the safety firing circuit. Diagrams are presented which explain the function and operation of the circuit. It activates five load circuits in rapid succession, with an arbitrarily-adjusted time interval, between successive load circuits. Chemicals and Allied Products
UNITED STATES
The Chemical Warfare Service was a branch of the US Army. It was later renamed the Chemical Corps. BSIR 1( 6):192, 1946-02-15 SAUER, CHARLES WILLIAM Colorimetric estimation of DDT by nitration and alkali treatment MIT Chemical Warfare Service Development Laboratory ReportM.R. 137 1945 90 p The object of the work described in this report was to investigate the limitations of a method which might be perfected for the analysis of DDT based on the colors produced from the tetranitro derivatives of DDT by the addition of alkali. A spectrophotometric method of analysis of DDT utilizing the colors produced by the addition of alkalis to solutions of the tetranitro derivatives of p,p' -DDT and related compounds was examined, and the application of this method of analysis to the assay of DDT in various oil solutions and emulsions was evaluated, and it was recommended that this method of analysis not be used for the estimation of DDT in spray or emulsion solutions where accurate results are desired, nor for product control. The report includes: Appendix A. Preparation of compounds. 3 pages. Appendix B. Spectrophotometric curves. 54 charts. Appendix C. Literature citations. 2 pages. The Chemical Warfare Service of the US Army was later renamed the Chemical Corps. Chemicals and Allied Products
UNITED STATES
BSIR 1( 6):192, 1946-02-15 SCHWARTZ, R.T. DUGGER, EDWARD, Jr. Bearing strength of plastic materials Army Air Forces Technical Report4998 1943 36 p Tables are presented, showing the bearing properties and the comparative tensile, compressive, and bearing strengths of various thermosetting and thermoplastic plastic materials. The majority of the tests were made in accordance with a procedure which is now incorporated in Federal Specification L-P-406, Reference 9. Curves, diagram, and photographs are included. Chemicals and Allied Products
UNITED STATES
BSIR 1( 6):192, 1946-02-15 SOOKNE, ARNOLD M. and others Milton Harris Associates Project Evaluation procedures for water repellency treatments. Report for the period April 1 to April 30, 1945 QMC-20 Report 4 1945 5 p Results of impregnating 18 oz. serge swatches with 4 solvent type water repelling compounds are presented and discussed. Chemicals and Allied Products QMC stands for US Army Quartermaster Corps
UNITED STATES
BSIR 1( 6):192, 1946-02-15 DOCUMENTS AND EQUIPMENT obtained during investigation of German X-ray and associated industries Siemens dental "mechanical" equipment n.d. 44 p This report consists of 4 sales bulletins of the Siemens-Reiniger Werke, of Berlin. Their titles are: Siemens Dental Einheit "Triumph"; Siemens Dentalgerät Aerodont; Siemens-Dental-Motoren zum Schleifen and Polieran; Elektromedizinische Einrichtungen für die Allgemein-Praxis. Electrical Machinery, Equipment, and Supplies -- Electronics
Germany
BSIR 1( 6):192, 1946-02-15 GREENBLATT, M.H. Tests on German crystals University of Pennsylvania, Division 14, NDRC Report 559 1945 5 p A report on the properties of two types of German crystals. The first was captured after the invasion of Normandy from a German submarine in Cherbourg. Experiments on the crystals gave rather poor results and since performance was below other German crystals, it is believed they were merely experimental models. Diagrams. Electrical Machinery, Equipment, and Supplies -- Electronics
Germany
BSIR 1( 6):192, 1946-02-15 McCARTHY, R.H. Report on questioning of Dr. Schmelzer [at] Zeiss Glass Works, Jena, Germany, [concerning] Ceramics of High Frequencies 1945 12 p Dr. Schmelzer's work has been in developing techniques for measuring the electrical characteristics of ceramics in the range of wave lengths from 1 to 50 centimeters. A report of his work (in English) as made to German authorities is included in this publication. It deals with a precise method of ascertaining the E' and E" values in the decimeter and centimeter wavebands. particularly suitable for the measurement of slight loss values, and with tests carried out on Calit with wave lengths of 20, 14. and 7 centimeters. The measuring apparatus, working with frequency multiplication, is described in detail. Also included in R.H. McCarthy's investigation are shorter accounts by Dr. Werner Rath on (1) The work on magnetic substances at the firm of Hescho, Hermsdorf and (2) The nature and importance of his inventions in the field of new ceramic compounds. In this last article, patents and patent applications involved are listed. Electrical Machinery, Equipment, and Supplies -- Electronics
Germany
BSIR 1( 6):192, 1946-02-15 US Army SIGNAL CORPS. German synchronous vibrator power supply, "Wechselrichtersatz (SE) p" Captured Enemy Communication Equipment ReportEEIS- 8-28 1945 6 p This is a report on "Wechselrichterstaz (SE) p", manufactured in 1944, the name of manufacturer and place of manufacture being unknown. The purpose of this apparatus is to supply voltage at a proper current capacity for a radio transmitter or receiver or both. The voltage and current characteristics of this power supply do not check with the data available on known German receivers and transmitters. It is therefore not known with what set or sets this power supply is used. It was found in a tank, but no other radio equipment was located. From the construction of the unit it is evident that it was designed for vehicular use, and it operates from a 12 volt battery, which is the type used in German military vehicles. A wiring diagram and 5 photographs are included in the report. EEIS stands for Enemy Equipment Intelligence Service. Electrical Machinery, Equipment, and Supplies -- Electronics
Germany
BSIR 1( 6):192, 1946-02-15 ABBENHOUSE, R.P. Operating Instructions, Radiation Laboratory Model 5 Synohroscope MIT Radiation Laboratory ReportM-212 1945 30 p This manual describes the circuit operation of Model 5 Synchroscope, with notes on operating procedure, adjustment, calibration, and maintenance. This oscilloscope is intended primarily for determining the amplitude, duration, and shape of short video pulses. Photographs and diagrams. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):193, 1946-02-15 ABBENHOUSE, R.P. GILLETTE, F.N. Operating instructions for Model G Synchronizer MIT Radiation Laboratory ReportM-195A 1945 24 p Illustrations and diagrams of the circuits of this device whose purpose is to increase the usefulness of the ordinary cathode ray oscilloscope. The circuits are: Trigger generator; fixed delay trigger; variable delay trigger; sweep circuit; calibration marks; utility circuit; and power supply. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):193, 1946-02-15 ABBENHOUSE, R.P. Operating Instructions for Sweep Calibrator, Model B MIT Radiation Laboratory ReportM-188 1944 14 p Calibration with this instrument is accomplished by a series of short pulses whose spacing is a linear function of time from the initial trigger, and, oonsequently, of distance along the sweep. The available calibration markers correspond to range units of 400, 2000, 10,000 and 20,000 yards and can be chosen by means of a switch on the front panel. The instrument has a trigger generator and is useful for sweep calibration of receiver indicators as well as synohroscopes and synchronizers. Photographs and diagrams. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):193, 1946-02-15 ABBIATI, O. Wave form analysis MIT Radiation Laboratory Report561 1944 37 p The wave form of motor alternators generally used to power radar equipment was analyzed by the use of a simple but accurate instrument developed especially for this purpose. This instrument compares the sample wave form with the 60 cycle commercial wave form and the form and amplitude factors are obtained by a simple computation. Different types of loads will cause different amounts of distortion. A radar load will cause the maximum distortion, the form factor varying from 1.25 to 1.03 and the amplitude factor from 1.68 to 1.16. The amplitude factor deviates more from that of a true sine wave than the form factor. There is no substantial difference between the form and amplitude factor deviation from a true sine wave of the aircraft motor alternators and the ground systems motor alternators. More attention should be given the type of load that the radar equipment will impose upon the alternator. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):193, 1946-02-15 BALSBAUGH. J.C. TALLMAN. W.C. HAGEN, H.D. Moisture-proofing of Button Mica Capacitors MIT Radiation Laboratory Report790 1945 29 p This report describes work done by the Instruments and Materials Research Laboratory, MIT, in cooperation with the Radiation Laboratory, in testing a large variety of protective coatings of basically different types to meet the special problems of adherence to oil coated mica and metal in forming a moisture-proof seal of particularly good dielectric properties. The objective was to develop moisture-proofing techniques and materials which could be used on button-type mica capacitors to enable them to pass Army-Navy acceptance tests. It was found that button mica capacitors can be moisture-proofed to withstand temperature cycling, immersion. and long exposure to high humidity by the application of Rockote F125 resin. Photograph included. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):193, 1946-02-15 BAÑOS, A., Jr. Theory of ringing time of tunable echo boxes MIT Radiation Laboratory Report630 1944 58 p The equivalent circuit of a cavity resonator is first set up by inspection of the differential equations governing the behavior of its normal coordinates as here established. Explicit formulas are given for the computation of the self and mutual parameters of the equivalent circuit. The case of the circular cylinder echo box is next discussed by means of a numerical example. The ringing time equation is established for a single mode and for two resonant modes. The appendices give information on cylindrical resonators and the solution of the complete two mode transient problem. Diagrams. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):193, 1946-02-15 BAÑOS, A., Jr. SAXON, D.S. Electronic modulator for cw magnetrons, An MIT Radiation Laboratory Report748 1945 45 p The theory of electronic modulation of continuous wave magnetrons, as developed in this laboratory, is presented. The method used is to send a beam of electrons through a gap in a resonant cavity which is tightly coupled to the magnetron, with the result that the frequency of the combination is shifted by the action of the electrons. Hence, by properly controlling the electronic current, the magnetron can be frequency modulated. There is an externally applied constant magnetic field directed along the beam which playa an important role in determining the frequency shift which can be obtained. Explicit formulas for the change in frequency and electronic losses have been derived and curves have been plotted. These results apply to a wide class of situations, including that where a beam of electrons is sent directly through the slots of a magnetron. Experimental results obtained in Group 52 of the Radiation Laboratory are in good agreement with the theory. Charts and diagrams. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):193, 1946-02-15 BEERS, YARDLEY MACE, A.B. Effect on noise figure of placing the gain control on the first I. F. stage, The MIT Radiation Laboratory Report528 1944 4 p Suppose an I.F. amplifier is designed to have adequate gain with tubes of the lowest acceptable gm. Then if higher gm tubes happen to be used, it is necessary to set the gain control back. Herein it is shown that in that case the noise figure may deteriorate by as much as 5 do. if the gain control is on the first two stages; with the gain control on the second and third stages, however, no significant effect on the noise figure is caused by variations in the setting of the gain control. A chart showing the effect of gain control on noise figure is included. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):193, 1946-02-15 BENT, ARTHUR E. Climate in relation to microwave radar propagation in Panama MIT Radiation Laboratory Report476 1944 42 p The two general lines of inquiry were: (1) Effects due to variation in atmospheric refraction, and (2) echoes from atmospheric phenomena. The four regions in Panama with distinct microwave radar propagation characteristics are listed and discussed. A procedure for locating precipitation areas by radar and reporting to the local Weather Service, was established in the region. This resulted in improved forecasting, increased safety of flying, and more effective interception. Diagrams and photographs. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):193, 1946-02-15 BENT, ARTHUR E. Echoes from tropical rain on X-band airborne radar MIT Radiation Laboratory Report728 1945 18 p Measurements of amplitude of echoes from tropical rain and a variety of surface targets in absolute values are presented. Tropical rain echo is of sufficient amplitude to make detection of surface targets at the same range difficult in some cases. Attenuation of rain echo amplitude with range is at a lower rate than that of usual surface targets in many cases. Targets which can be detected at close range may be obscured by rain echo at increasing range. Expanded sweeps for indicators and training of personnel tend to improve detection. Tropical rain is of short duration and limited horizontal distribution so that desired targets are only briefly masked. Echoes from intense showers may at times be confused with echoes from desired targets. Methods of distinguishing echoes are described. BSIR 1( 6):194, 1946-02-15 Electrical Machinery, Equipment, and Supplies -- Electronics
United States
 BENT, ARTHUR E. Radar echoes from atmospheric phenomena MIT Radiation Laboratory Report 42-2 Off. Pub. Bd., Report, PB 2846, 1943 15 p Rader echoes at 10 and 3 cm from atmospheric phenomena are discussed from an observational point of view. Characteristics of such echoes which distinguish them from reflections from other targets are outlined. Meteorological situations where radar echoes are found are classified as thunderstorms, heavy showsrs, active convective situations and situations of stratification. The appearance of echoes from thunderstorms end heavy showers at cold fronts is described, and is illustrated by photogrophs of Plan-Position end "A" type indicators. BSIR 1( 6):194, 1946-02-15 Electrical Machinery, Equipment, and Supplies -- Electronics
United States
 BENT, ARTHUR E. Radar echoes from precipitation layers MIT Radiation Laboratory Report689 1945 14 p Echoes have been observed from discrete reflecting layers in the atmosphere at heights of one half to two and one half miles when general rain is falling from warm, moist air masses. It is concluded that these echoes come from levels where large raindrops are present. Sloping, multiple, and irregular surfaces and rather rapid variations of characteristics with time have been observed. Amplitude 'of the echo from the layer in some cases roaches rather high amplitude, an extreme case being 21 db above noise, or 86 db below one watt at S-band. The appearance of the echo on conventional indioators is illustrated as well as on specialized types such as the EEI and RM. The importance of radar in meteorological research is suggested. BSIR 1( 6):194, 1946-02-15 Electrical Machinery, Equipment, and Supplies -- Electronics
United States
 BERMAN, ELI Low level crystal detectors, effect of heat and cold MIT Radiation Laboratory Report440 1943 7 p Low level crystal detectors have a negative temperature coefficient of resistance. However, the sensitivity of the crystals is not seriously affected up to +70°C, and dawn to -40°C. Below -40°C the resistance becomes very high and the sensitivity starts to drop rapidly. Charts. BSIR 1( 6):194, 1946-02-15 Electrical Machinery, Equipment, and Supplies -- Electronics
United States
 BETTLER, P.C. Model 6 modulator performance tests MIT Radiation Laboratory Report549 1944 10p Operating date and results obtained with this high power A.C. charging rotary spark gap modulator. The results may serve en orienting purpose for users of this type of equipment, as well as supplying accurate performance data of use to radar modulator designers. BSIR 1( 6):194, 1946-02-15 Electrical Machinery, Equipment, and Supplies -- Electronics
United States
 BOSTICK, WINSTON H. GILETTE, P. ROGER REHKOPF, HAROLD L. Oscilloscope presentation of hysteresis loops at 60 cycles and under pulse conditions MIT Radiation Laboratory Report 51-17 1943 10p Simple circuits are described for obtaining 60 cycle and pulse hysteresis loops on an oscilloscope. These loops are an aid in the study of pulse transformer cores. Plates end diagrams included. BSIR 1( 6):194, 1946-02-15 Electrical Machinery, Equipment, and Supplies -- Electronics
United States
 BOTHWELL, F.E. Equivalent network for the 232-BW pulse transformer based on the method of virtual displacements MIT Radiation Laboratory Report734 1945 44 p The method of virtual displacements developed by P.D. Grout in RL Report 618 (PB 2676) is used to obtain an equivalent circuit for the 232-BW pulse transformer, and values are computed for the network constants. To check these values, the current which flows into the transformer when it is short-circuited and pulsed is both calculated and measured experimentally. The calculated and measured values agree within engineering tolerances. Charts and diagrams. BSIR 1( 6):194, 1946-02-15 Electrical Machinery, Equipment, and Supplies -- Electronics
United States
 BRAUNLICH, ALICE Half beacon antenna MIT Radiation Laboratory Report419 1943 13 p The 180º beacon antenna was designed to give a horizontally polarized beam with less than 30% variation in power over 140° and well defined cutoffs. This pattern was obtained with a horn fed half parabolic cylinder with exponentially curved flaps at a flare angle of 180°. The general shape of the pattern may be controlled by the size and angle of the flaps. Diagrams, drawings, and charts. BSIR 1( 6):194, 1946-02-15 Electrical Machinery, Equipment, and Supplies -- Electronics
United States
 BRODY, SELMA BLAZER D'EUSTACHIO, D. Small DC-9 crystals Camp Coles Signal LaboratoryEngineering Report 12 1943 12 p A new design for the DC-9 crystal unit has been developed which offers advantages in being easier to fabricate and in using less quartz. At present the DC-9 crystal oscillator plate is larger than .75" x .75". The new completely predjmensianed crystal plate is .520" x .404" and has been found to give excellent results. This represents a saving of about 6 in quartz. Detailed specifications for the fabrication of the new unit have been worked out. A way of adjusting the frequency to be 1000 kc/sec 10 cycles at room temperature without the need of an adjustable air gap has been developed. It is planned to house the new crystal in an FT-243 or CR-1 type holder. BSIR 1( 6):194, 1946-02-15 Electrical Machinery, Equipment, and Supplies -- Electronics
United States
 BUTT, CHARLES Effects of line and cathode follower terminations on pulse shape MIT Radiation Laboratory Report616 1944 14p Date and photographs are presented which show the nature of the ill effects of high and low impedance line terminations on pulse shape as appears at the local and remote PPI. With terminated lines it is shown that a .5 μ sec. pulse can be satisfactorily maintained at a local or remote PPI, although the high Ζ cable results in a delay of 2.5 μ sec. and an attenuation of 20% for 50 feet of cable. Low Ζ cable Is necessary for shorter pulse lengths. but either more drive or more amplification at the terminated end is then required. BSIR 1( 6):194, 1946-02-15 Electrical Machinery, Equipment, and Supplies -- Electronics
United States
 CLOSE, R.N. An H + B impact predicting computer assuming constant indicated airspeed for use with AN/APS-15a radar MIT Radiation Laboratory Report584 1944 47 p Description of a bombing commuter consisting of one linear potentiometer, a Veeder counter, and a set of calibrated dials, which is capable of approximating the bombing functions for almost all conditions of altitude, wind, and groundspeed. Bombing tables for this computer are included, yielding values of B in feet for values of altitude in feet, groundspeed in knots, and indicated airspeed in miles per hour. An analysis of the ballistic theory and inherent errors of the computer is also given. BSIR 1( 6):194, 1946-02-15 Electrical Machinery, Equipment, and Supplies -- Electronics
United States
 COHEN, S.B. H-2 trigger unit MIT Radiation Laboratory Report645-6 1945 12 p The purpose of the H-2 Trigger Unit is to generate triggers for starting the range delay gates in the trainer and to start the various sweeps and timing circuits in the radar set. It also furnishes a pulse whose purpose is to simulate the main bang and provides a differentiated gate which oan be used to attenuate the signal amplitude as a function of range. Photographs, diagrams, and chart of test data given. See PB 2764 for description of the 1-2 signal unit. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):195, 1946-02-15 COHEN, S. H-3 trigger unit MIT Radiation Laboratory Report645-3 1945 17 p The 11-3 trigger unit was designed to produce a variable frequency trigger or be triggered from en external source. Since the unit is used with the 1-3 signal generator, it embodies a circuit for producing the linear sweep voltage required for range control in the 1-3. In addition it provides a differentiated gate to be used for controlling the intensity of the signal with range in the modulator unit. See PB 2794 for description of the I-3 signal unit. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):195, 1946-02-15 COHEN, S.B. I-2 signal unit MIT Radiation Laboratory Report645-7 1945 25 p The 1-2 Signal Unit is designed to operate with the H-2 Trigger Unit in the production of signal pulses delayed by various amounts of time with respect to the initiating trigger. The time delay is obtained by using a gate whose length is set by a range voltage fed into the unit from an external source. A conical s can modulation voltage can be impressed upon the signals. The signals can also be gated in azimuth and elevation. It is easy to adapt the 1-2 to the escort ship problem, in which it is desired to produce signals which follow an independently controlled target with constant separation from the latter in azimuth and range. Photographs, diagrams, and chart of test data. See also PB 2763 for description of 11-2 trigger unit. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):195, 1946-02-15 COHEN, S.B. I-3 signal unit MIT Radiation Laboratory Report645-4 1945 23 p The 1-3 signal unit was designed to work with the H-3 trigger unit in radar trainers of the individual moving target tyre. It is used to produce a signal pulse, delayed in time by varying amounts with respect to the initiating trigger. The time delay is set by a range voltage which is fed into the unit from an external source. A conical scan modulation voltage can be impressed upon the signals. The signals can also be gated in azimuth end elevation. See P13 2713 for description of the H-3 trigger unit. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):195, 1946-02-15 COLE, P.A. General Electric GL 2C40 taut grid lighthouse tubes MIT Radiation Laboratory Report600 1944 9 p The properties of these tubes are described and their performance in microwave equipment is discussed. They possess much better frequency stability to supply voltage than tubes of the 446 type. It is concluded that large scale production is desirable. Tables and a chart. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):195, 1946-02-15 COLE, P.A. Measurements on 446 "Lighthouse" tubes MIT Radiation Laboratory Report413 1943 12 p Measurements of the R.F. power output and minimum wavelength of oscillation for a fixed power input were made on RCA and GE 446 tubes. No correlation between R.F. performance and tube characteristics measured at 1000 cycles is found in these measurements. The frequency stability of 446 tubes as local oscillators in various types of cavities was investigated; methods for improving this defeat are suggested. Correlations of inter-aleotrode capacity and wavelength of oscillation in a fixed tuned cavity were determined. Diagrams. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):195, 1946-02-15 COLE, P.A. DUPER, J.B.H. MORE, D.R. Lighthouse R.F. envelope indicator MIT Radiation Laboratory Report542 1944 13 p An R. F. envelope viewer is described which employs a GL-559 diode as the rectifier in conjunction with a suitable cavity. A tentative explanation of the behavior of the diode at microwave frequencies is given. The envelope viewer is satisfactory for the examination of very short R.F. pulses of the order of .1 microseconds. It is also useful as a power measuring device in the range of .005 watts to 1000 watts. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):195, 1946-02-15 COOMES, E.A. BUCK, J.G. FINEMAN, A. Cathodes for pulsed magnetrons. Part I. Correlations between oscillating and diode conditions MIT Radiation Laboratory Report609 1944 32 p The procedure and results for the pulse testing of cathodes in magnetrons are presented. Correlations are made on a number of magnetron types between the state of the cathode. as obtained from these tests, and instabilities in performance. In general, sparking seems to correlate with the behavior of the cathode in the region of Schottky emmission, while moding and deterioration of spectrum seem to depend upon the primary emitting properties of the cathode. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):195, 1946-02-15 CORK, BRUCE Shielding of microwave receivers against interference at intermediate frequencies MIT Radiation Laboratory Report471 1944 8 p Steps are advised for shielding and filtering the intermediate frequency amplifier, especially for minimizing the coupling of the 1-f power into the receiver. It is concluded that jamming of the radar receiver at the intermediate frequency can be made much more difficult if reasonable care is taken to shield and filter properly. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):195, 1946-02-15 COWAN, E.W. Altitude return in the AN/APS - 6 MIT Radiation Laboratory Report706 1945 14 p In this aircraft interception radar the energy escaping directly downward is relatively small, but it finds a broad and perpendicular target in the face of the earth or sea over which the aircraft is flying. The result is the "altitude-return" signal which appears on the indicator at a range equal to the altitude. This report discusses the altitude-return signal variation with position of scanner, with altitude, and its duration and shape, as well as methods of elimination by means of the shaped receiver gate or of screens. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):195, 1946-02-15 COWAN, E.W. Sea-return effects and their elimination in the AN/APS-6 MIT Radiation Laboratory Report707 1945 42 p The spiral search scan of the AN/APS-6 radar equipment contains 3 "blind" volumes due to sea return. These are described and discussed in some detail. Methods of elimination or reducing these blind volumes are presented. Illustrations, charts and diagrams are included. BSIR 1( 6):195, 1946-02-15 Electrical Machinery, Equipment, and Supplies -- Electronics
United States
 DEAMICIS, EGILDA Frequency - wavelength conversion tables MIT Radiation Laboratory Report652 1945 9 p Tables are provided for air at 25°C and 60% relative humidity. The tables cover the following ranges: X-band, 10977 megacycles to 6969 megacycles; S-band, 3995 megacycles to 2380 msgacycles; and K-band, 24265 megacycles to 23689 megacyclss. Also included is a temperature and humidity correction nomograph. See also PB 2818. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):196, 1946-02-15 DOWKER, YAEL REDHEFFEH, RAYMOND M. Measurement of small reflections, The MIT Radiation Laboratory Report483-10 MIT Radiation Laboratory Radome bulletin 10 1945 32 p Beside errors due to equipment, which can be reduced to a very small value, measurement of small reflections is complicated by R.F. errors due to the joint and the 'matched' load. While these errors can be compensated with complete reflection curves, the experimental difficulties are considerable. With the standard method, we measure reflection by moving the probe, taking one or two load positions; with the new method, we move the reflection being measured with constant probe position. If R is the true value of the reflection desired, J the reflection of the joint, L of the 'matched' load, G of the generator, the standard method leads to a fractional error of ± J/R when only a single measurement is taken with L = 0, while the average of two measurements with quarter wave motion gives + (J/R)²/2,-0. With the new method, when L = G = 0, the corresponding limits are ± J and + J²/2,-0; when L = J = 0, they are + G and +G²/2,-0. If both J and G are finite, the error is again of the first degree for one measurement, of the second degree for the average of two. If L ≥ 0, error is ≤ the above with J replaced by L + J. Hence, with the first method, the extraneous reflection must be small compared to the desired reflection; with the second, it suffices that it be small regardless of its relative size. The same property is found for phase measursments. Beside these approximate methods, a number of exact solutions are given, together with various means of determining G. Theorstical expressions are plotted, and all important relations are verified experimentally. Report includes tables, diagrams, graphs and a bibliography. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):196, 1946-02-15 DUNBAR, A.S. Antenna for high altitude bombing (H₂X) MIT Radiation Laboratory Report411 1943 17 p An X-band antenna has been developed for high altitude bombing. Two types were tried: a distributed feed and a modified reflector. The modified reflector with a Cutler feed has proven most satisfactory. This antenna employs a 30" x 10.6"f paraboloid and provides a csc²O elevation pattern with coverage to 700 and narrow azimuthal half power widths (3°) out to this angle. Photographs and charts. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):196, 1946-02-15 FANO, R.M. R-F mechanical modulator for S-band MIT Radiation Laboratory Report798 1945 11 p The r-f modulator described in this report consists of a motor-driven variable coupler and is designed to modulate the output of an S-band signal generator. its advantage over other types of mechanical modulators is that the amplitude modulation of the output signal is very closely independent of frequency. its main disadvantage is that the modulation envelope is not a pure sine wave, but contains about 25% second harmonic. A sub-harmonic frequency can also be present due to imperfect construction of the equipment. The modulator has total insertion loss of 25-30 db, including a 10 db pad. Diagrams, and drawings of equipment are included. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):196, 1946-02-15 FLETCHER, R.C. RIEKE, F.F. Mode seleotion in magnetrons MIT Radiation Laboratory Report809 1945 45 p Mode selection is discussed in relation to the steady-state, current-voltage relations of the magnetron and modulator, the transient response of the magnetron, the stability of oscillations, and the noise level from which oscillations start. Apparatus and methods for the direct observation of current voltage relationships, both during steady-state operations and during transients are described. The transient behavior of the magnetron during the starting of oscillations and during transitions from one mode to another is described in detail. Photographs and diagrams. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):196, 1946-02-15 FLUHARTY, REX. G. DILLINGER, JOSEPH R. Dissipation in series spark gaps and voltage-current relationships during the discharge MIT Radiation Laboratory Report682-1 1945 37p Characteristics of the operation of series gaps as a switch in a line tyre modulator are given. These gaps were hydrogen and argon filled and had cylindrical aluminum cathodes and concentric iron or nickel cathodes. Types discussed and rerorted on are 1B34, 1B41, 1B45 and 1B49. Traces of the peak current in and voltage drop, across the rotary gap in a Western Electric 717A modulator are reproduced. Comparative measurements on Western Electric 1B22 and 4C35 hydrogen thyratron are included. Charts and diagrams included in the report. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):196, 1946-02-15 FOSTER, J.S. Round guide rear antenna feeds MIT Radiation Laboratory Report 41-12 1943 14 p This report describes two methods by which round guide may feed full paraboloids from the rear: (1) One by which the guide is tapersd so radiation excites resonant ring backed by disc reflector: end (2) a model using untapered guide and simple reflector held by metal stubs from collar on Report also contains a brief presentation of illumination available from specified guides and reflectors. Charts and diagrams. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):196, 1946-02-15 FRANK, N.H. Coupling between inductive windows in wave guides MIT Radiation Laboratory Report 43-25 1943 10 p The mutual coupling between two inductive windows separated by a distance d in a rectangular wave guide has been calculated for an arbitrary termination of the guide. The results are valid to the approximation that the separation d be large enough compared to the wider guide dimension a so that e-2nd/a is small compared to unity. The coupling term can be lumped in a relatively simple manner with the admittance of the window nearer the load, and a formula is given for the equivalent admittance of this second window. Using this equivalent admittance. ordinary line theory equations are valid for the system. The carrection term is a function of the window separation guide dimensions, wave length and the susceptances of the individual windows, decreasing as the latter decrease. In general, the correction term is negligible for a large range of separations end increases rapidly as the separation drops below a limit which depends on the above mentioned variables. Typical curves are given for the magnitudes and phase of this correction term. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):196, 1946-02-15 GARDNER, J.H. Low altitude navigation antennas developed in connection with AN/APS-10 MIT Radiation Laboratory Report615 1944 19 P This is a summary of work done on the following kinds of antennas or "dishes": Strip dishes, dishes with plates and holes, and combination paraboloid and parabolic cylindrical or "shovel-type" dishes. There are sketches of the APS-10 dogeared shovel dish and of the strip dish, with graphs showing the results of testing the various types of dishes. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):197, 1946-02-15 GARDNER, M.E. Operational characteristics of 2C43 tubes as pulsed oscillators in a re-entrant cavity MIT Radiation Laboratory Report732 1945 14 p This report gives a summary of the principal operational characteristics of the 2C43 (lighthouse tube) as used in a re-entrant cavity operating as a pulsed transmitter in the microwave region. Charts and diagrams. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):197, 1946-02-15 GARMAN, R.L. DROZ, M. E. STAFFORD, H.A. Radar trainer equation-solvers for the relative motion of two moving objects in space MIT Radiation Laboratory Report436 1943 23 p Description of methods of solving these equations: The mechanical solution and several electro-mechanical solutions. The electro-rnechanical method in rectangular coordinates is entirely feasible and susceptible of moderate precision. A similar method in polar coordinates for a given required accuracy is more difficult. However other features of the polar coordinate method make it extremely attractive. Particularly, a method for including the effects of bank and pitch is discussed. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):197, 1946-02-15 GILBERT, C.M. Corner reflector tests at Langley Field MIT Radiation Laboratory Report402 1943 18 p The corner reflector is a radar target which is constructed of three plane pieces mutually perpendicular and intersecting. The inside surfaces are covered with some conducting material, such as copper foil or fine-meshed screening. This report describes and gives the results of finished ground tests and flight tests made on two-foot and four-foot square-type reflectors and on a four-foot triangular-type. Flight tests were made also on a sixteen-foot triangular-type. These tests were made in 1942 in order to determine reflection characteristics of corner reflectors on land and in the water with airborne ASV equipment. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):197, 1946-02-15 GILBERT, C.M. HAUPT, C.R. Link conversion unit for ground controlled approach trainer. MIT Radiation Laboratory Report716). 1945 28 p The AN/MPN-1T1 Ground Controlled Approach Trainer (GCAT) is an electronic unit for producing two synthetic echoes on the standard indicators of the GCA indicator rack. On the trainer rack are knobs for feeding in aircraft speed, rate of turn and rate of climb- in order to be able to substitute a standard small Link trainer for the three hand control knobs, additional equipment is required to allow the position and change of position data from the Link trainer to operate the equation solver in the trainer rack. This additional equipment is described in this report. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):197, 1946-02-15 GLASOE, G.N. Pulse shapes and RI spectra for combinations of Stromberg-Carlson Mark I and Mark II modulators with 2J22, 2J21 and 725A magnetrons MIT Radiation Laboratory Report518 1944 68 p This report presents characteristics of the pulses obtained with these modulators. There are photographs of oscilloscope traces with descriptions of the conditions under which they were obtained. The pictures include voltage pulses with resistance and magnetron load, magnetron current pulses, IF envelope pulses and RF spectra. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):197, 1946-02-15 GOODMAN, B. University of Pennsylvania, Division 14 Effect of small crystallites on conductivity University of Pennsylvania, Division 14, NDRC Report 377 1945 10 p Analysis of the effect which the presence of small grains of crystallites in a conducting substance has on conductivity. Under most conditions crystallite scattering is unimportant in conductivity. It seems probable that such consideration can be neglected in treating most effects in silicon and germanium semi-conductors. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):197, 1946-02-15 GOODMAN, B. University of Pennsylvania. Division 14 Some comments on the double valued characteristics of crystal rectifiers University of Pennsylvania, Division 14, NDRC Report 504 1945 25 P Analysis of assumptions in two earlier papers on germanium rectifiers by S. Beazer. These studies discussed the voltage peaks in the static current voltage curves of germanium point contact rectifiers. Many of the results were attributed to the negative temperature coefficient of the semiconductor resistivity with added considerations of "overloading" in the back direction. Charts and tables. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):197, 1946-02-15 HALL, R.J. Report on Western Electric 717A modulator type D-150442, and radio frequency unit, type D-150442 MIT Radiation Laboratory Report425 1944 29 p These pieces of equipment are units of a pressurized ASV radar system. They were designed to provide a minimum of 100 kilowatts transmitted peak power from a 714 AY magnetron. Pulse widths are approximately 1 and 2 μsec. at a duty of 0.08%. This report consists of a discussion of the major components and a detailed study of the modulator operation when used with the above radio frequency unit. The overall modulator efficiency is 30%. The weight figure is 0.43 lbs. per average watt input to the magnetron. These figures do not include the radio frequency unit. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):197, 1946-02-15 HAMILTON, D.R. Static frequency modulation characteristics of the reflex klystron MIT Radiation Laboratory Report781). 1945 18 p This report deals with the frequency modulation of a reflex klystron from a quasi-stationary point of view based on static characteristics, at modulation frequencies up to a limiting value set by the reflection transit time, not the cavity Q. It discusses the dependence on oscillator parameters and oscillator loading of the relevant statio characteristice: Electronic tuning range, rate of electronic tuning with reflection transit time and reflector volts, linearity of electronic tuning, and dependence of amplitude on frequency. It is shown that the optimization of each of these properties reduces to the minimization of the value which the loaded Q of the oscillator takes up when the power output is maximized with respect to load. The consequences to tube design are briefly pointed out. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):197, 1946-02-15 HEALEA, MONICA Effect of variation of vane width and cathode size on the operation of magnetrons MIT Radiation Laboratory Report586). 1944 7 p Measurements on S-band magnetrons with different cathode sizes and vane widths yield the following results: (1) The efficiency of these tubes increases with decreasing cathode size, limited by short life of small cathodes; (2) the efficiency is a slowly varying function of vane width over the range of widths used in standard practice, but drops off rapidly for narrow end wide vanes. The ratio of vane width to width of oscillator opening should not be much less than 1 or more than 4. Five mm. cathodes five beet operetion in these tubes, consistent with life of the cathode. This is a ratio of anode to cathode diameter of 2.72. Two graphs. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):197, 1946-02-15 HOLMES, S.A. Stabilized high voltage supply MIT Radiation Laboratory Report565 1944 14 p An audio frequency generator is described which uses a 6V6 Hartley oscillator with the primary of an iron core transformer as the tank circuit. The secondary of the transformer provides a voltage which when rectified and filtered gives either 4 or 5 KV for output currents (2X2) up to one-half milliampere. The oscillator requires 18 to 23 milliamperes at 300 volts dec. The 5 KV output will decrease 150 volts when the output current is increased .4 milliampere. The space required for this supply is 15" x 7" x 9" and the total weight is approximately 15 1/2 pounds. Operational tests with satisfactory operation at 40,000 feet and after 24 hours at 95% humidity at 50°C. and after 500 hours of life test indicate the design of this supply can meet service requirements. Charts and diagrams. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):198, 1946-02-15 HOWER, PAUL A. Standards for microwave frequencies MIT Radiation Laboratory Report599 1944 19 p Standards for microwave frequencies are obtained by frequency multiplication and harmonic selection of low frequency oscillators which are referred to WWV as a primary reference standard. Resonant cavities are extensively used as portable secondary reference standards. Temperature and humidity effects upon the frequency of such cavities are known so that their frequency can easily be corrected to standard conditions which are arbitrarily taken as 25°C end 60% relative humidity. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):198, 1946-02-15 HUDSPETH, EMMETT L. NASH, JOHN P. Corner reflectors for life rafts MIT Radiation Laboratory Report608 1944 28 p This report contains a complete account of the work done in connection with a joint Army-Navy project which requested the development of a collapsible corner reflector for life-rafts. A section of the report is devoted to general theoretical aspects of the problem. The experimental work performed in the development of a suitable reflecting fabric and method of collapsing and folding reflectors are discussed. Extensive operational tests performed in the field have shown that pick-up ranges of between eight end fifteen miles may be expected with present airborne microwave radar equipment which is up to standard performance. Since the Navy has recommended that all of its life-rafts carry corner reflectors, pictures and descriptions of production models are included. (Army decisions are not yet completely formulated.) Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):198, 1946-02-15 HUREWICZ, WITOLD On servos with pulsed error data MIT Radiation Laboratory Report7211945 9 p This paper deals with servos which receive their error data discontinuously at equally spaced moments, in radar echoes. Methods of dealing with such servos are developed. The methods of computing the correct frequency response and of determining tho stability of a servo with pulsed data are shown. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):198, 1946-02-15 HUREWICZ, WITOLD Servos with torque saturation, Part II MIT Radiation Laboratory Report592 1944 22 p The report deals with a servomechanism in which the stall torque of the servometer changes linearly with the error and its time derivative E until a fixed "saturation value is reached, where the torque will remain constant until t servo returns to the unsaturated state. Reaction to a suddenly applied error is studied. The servo is stable; without sustained input oscillations will die out. Behavior of the servo is determined by, the damping ratio and K[subscript "v"]T[subscript "m"] the velocity error and motor time constants. Behavior with different values of these constants is discussed, with K[subscript "v"]T[subscript "m"] ranging from relatively small to very large values. For part I, see PB 2802. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):198, 1946-02-15 INGALLS, C.E. Revision of General Radio type 605-B signal generator for pulsing MIT Radiation Laboratory Report575 1944 16 p Instructions are given for modifying the General Radio ty 605-B signal generator to produce pulsed radio frequency output as well as its normal continuous output. The pulses may be at least from 0.5 to 100 microseconds duration and the pulsed output may be modulated with audio frequencies the same as the normal continuous output. The pulse must be furnished from an external source. Illustrations and circuit diagram are included. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):198, 1946-02-15 JACOBSON, E.A.S. Instructions for TGS-2SE, TGS-3BL, TS-5BL signal generators MIT Radiation Laboratory ReportM-141 1945 74 p These instructions cover the operation and use of the lie generators. They are intended primarily for laboratory use due to size and weight, such uses including tunable sources of r-f power, suitable for ordinary r-f line measurement: They consist of a 707B r-f oscillator with associated plumbing; pulsing, phasing and modulating circuits; a thermistor bridge wattmeter; a calibrated c-f attenuated; and a voltage regulated power supply. Photographs and diagrams. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):198, 1946-02-15 JACOBSON, E.A. SEVERINGHAUS, J.W. WOOD, F.B. Instructions for types TWS-5 and TWS-5EV battery operated wattmeters (preliminary models of TS-125/AP) MIT Radiation Laboratory ReportM-174 1944 30 P This is a manuscript of a handbook of maintenance instructions for types TWS-5 and TWS-5EV battery operated wattmeters, compiled for use of the manufacturer in preparing a maintenance instruction handbook for the TS-125/AP wattmeter, of which the TWS-5XV wattmeter is a preliminary model. Description, wiring diagrams, parts lists, and photographs are given. Type TWS-5EV is a compact, light weight battery operated wattmeter for measuring r-f power in the frequency range 2400-3335 mc/sec. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):198, 1946-02-15 JONES, E.M. J-2 modulator unit MIT Radiation Laboratory Report645-5 1945 15p The J-2 modulator is one of the standard trainer units who purpose is to convert synthetic video signals into I.F. signals which can be fed into the standard radar receiver. Use is made of a pulsed and a C.W. oscillator from whioh can be derived the proper I.F. frequency when their output are mixed. The unit includes a noise generator to simulat that part of the noise in a radar set, which is not due tc the reoeiver. Provision is made for controlling the amplitude of the signals as a function of range. Photographs, diagrams and chart of test data given. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):198, 1946-02-15 KATZ, S. Instructions for TSX-2 and specifications on TSX-4SE and TSS-4SE Spectrum Analyzers MIT Radiation Laboratory ReportM-173C 1944 79p This instruction manual sets forth the operation, theory, and maintenance instructions of the TSX-2 Spectrum Analyzer, a portable and sturdily built test equipment, including the parts list for both the analyzer and I.F. amplifier. Drawings as well as specifications of the SE analyzers are given. TSX-4SE is intended for laboratory use only, differing from TSX-2 only in mechanical and minor electrical characteristics. Type TSS-4SE differs from the other two in operating in a different frequency band and in providing a means of measuring frequency differences, but not absolute frequency. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):199, 1946-02-15 KATZ, S. WOOD, F.B. Handbook of operating and maintenance instructions for test set TS-259 (XR-1)/AP with supplements on test sets TS-259 (XR-2)/AP and T8-259 (xR-3)/AP and signal generator TS 259/AP MIT Radiation Laboratory ReportM-193A 1945 82 p These test sets are designed for checking radar transmitter power output and frequency, receiver sensitivity and band-widths AFC circuits, and TR box recovery time, and for tuning the radar receiver. TS-259 (XR-3)/AP is manufactured by Research Construction Company, Cambridge 39, Massachusetts. TS-259/AP is manufactured by Browning Laboratories, Winchester, Massachusetts. The others are manufactured by the Radiation Laboratory. TS-259 (XR-1)/AP requires special selection of r-f oscillator tubes. Diagrams. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):199, 1946-02-15 KUPER, J.B.H. BEERS, DOROTHY S. Electronic tuning of reflex oscillators MIT Radiation Laboratory Report7741945 15p Using elementary bunching theory it is shown that the electronic tuning range of a reflex oscillator will be approximately equal to the bandwidth of the loaded resonator, provided the circuit efficiency is between 60% and 80% and the oscillator is loaded for optimum output. Experimental results for typical 2625 tubes show spreads of 1.4 to 3.1 Mc/volt in the "160 volt" mode at 3.2 cm., and 2.3 to 4.8 in the "105 volt" mode. The tuning rate at 3.5 cm. is more than twice that at 3.1, changes in Q being responsible for most of the variation. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):199, 1946-02-15 LASHOF, T.W. Information on Radiation Laboratory paraboloid reflectors MIT Radiation Laboratory Report679 1945 20 p Instructions for laying out parabolic templates and for making spiders and mounting brackets for supporting the reflectors. The following tables are included: Gross dimensions and weight of spun paraboloids stocked by the antenna group; coordinates for laying-out parabolas; approximate gain and full width at half power in paraboloids of various sizes; and actual experimental values of gains and half-power widths. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):199, 1946-02-15 LAWSON, A.W. and others University of Pennsylvania Behavior of silicon crystals at low level powers University of Pennsylvania, Division 14, NDRC Report 182 1943 6p Experimental and theoretical values for a in the formula for figure of merit of crystals [unclear mathematical formula] are compared. Agreement is poor. Experimental methods used are described, and results discussed. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):199, 1946-02-15 LAWSON, A.W. and others University of Pennsylvania Comparison of wedge and cone contacts on Fox silicon. University of Pennsylvania, Division 14, NDRC Report 197 1943 8 p This report presents results obtained in comparison of performance and burn-out qualities of five crystals made by Fox and Pearsall with wedge contacts with five crystals made from Fox silicon in exactly the same manner except for the substitution of cone points. It was concluded that a wedge point does not appear essential to high burn-out, and there is possibility that the behavior of cone points at X-band may be superior. Charts. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):199, 1946-02-15 LAWSON, A.W. and others University of Pennsylvania Effect of tapping on barrier capacity University of Pennsylvania, Division 14, NDRC Report 181 1943 18p In an effort to explain more completely the effect of tapping of crystals on characteristics, this report presents data on the barrier capacity of silicon-tungsten contacts as a function of the loading cycle on the tungsten wire. Apparatus and methods are described in detail. Sketches of the apparatus are also presented. The data obtained are presented in a series of curves. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):199, 1946-02-15 LAWSON, A.W. and others University of Pennsylvania Ionization of donator levels in crystal rectifiers by thermal agitation University of Pennsylvania, Division 14, NDRC Report 173 1943 11 p This report presents quantum mechanical calculation which confirms theory that at high frequencies the effective barrier capacity may decrease owing to a lag in the ionization of donator levels under the influence of thermal agitation. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):199, 1946-02-15 LAWSON, A.W. MILLER, P.H. STEPHENS, W.E. University of Pennsylvania Capacity in crystal rectifiers University of Pennsylvania, Division 14, NDRC Report 166 1943 4 p Description of a method for measuring the shunting capacity across the tungsten-silicon junction in crystal rectifiers. Since the capacity across the junction is related to thickness and physical properties of blocking layer, as well as the area of contact, valuable correlations may be made between capacities and other physical characteristics of the rectifier. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):199, 1946-02-15 LAWSON, A.W. MILLER, P.H. STEPHENS, W.E. University of Pennsylvania Dependence of i.f. impedance and noise temperature of crystal rectifiers on matching condition University of Pennsylvania, Division 14, NDRC Report 194 5 p A report of experiments at the University of Pennsylvania on the i. f. and DC conductances of crystal rectifiers. A record was made of the 1.f. impedance and the noise temperature of a number of different rectifiers both when the crystel is carefully matched to the local oscillator power and when it is mismatched by decreasing the value of the DC current. When the crystal is perfectly matched the DC impedance exceeds the i.f. impedance by 10%. However when the crystal is mismatched the two impedances are equal within the experimental errors. Mismatching also changes the measured noise temperature of the crystal. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):199, 1946-02-15 LEWIS, N.N., and others. University of Pennsylvania High back voltage silicon University of Pennsylvania, Division 14, NDRC Report 450 1945 17 p This report describes investigations of high back voltage silicon and compares H.B.V. silicon and germanium crystals. Appropriate dopes (nickel , tin, and germanium) were soon found which made silicon stand high back voltage. Since these high back voltage properties are quite valuable for electronic circuits, efforts were made to develop in silicon the most useful characteristics of the crystal rectifier -- high back voltage, high back resistance, large front currents. H. B. V. silicon is less frequency sensitive and less temperature sensitive than H. B. V. germanium. Although H.B.V. silicon crystals are not as good as germanium H.B.V. crystals for second detector and D.C. restorer used, performance data suggests that further development might be fruitful. H. B. V. silicon should be useful in applications where a diode is needed which is frequency independent and temperature insensitive. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):199, 1946-02-15 LEWIS, M.N. TAYLOR, J.H. GIBSON, R.J. Evaporated films of germanium and silicon University of Pennsylvania University of Pennsylvania, Division 14, NDRC Report 337 1944 6 p This report describes methods used in evaporating thin films of germanium and silicon onto metals to determine the feasibility of producing rectifiers in this manner. Objectives in these experiments were: Purification of semiconductor; homogeneous distribution of doping agent; elimination of several steps in commercial production of rectifiers; good back contact, end smooth and uniform front surface. Good rectifiers were not obtained by this process. Materials used were Electromet silicon and Eagle-Picher Ge and later, pure Ge made by reducing dioxide. Drawings of apparatus included. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):200, 1946-02-15 MASON, S.J. Flared box horn MIT Radiation Laboratory Report653 18 p 1945 This report compares calculated and measured characteristics of H-plane primary patterns from flared box horns. A flared box horn is a length of rectangular wave guide, wide enough to support the TE₁,₀ and TE₃,₀ modes and fed at one end by an H-plane pectoral horn. The horn aperture is less than the box width. The ratio of amplitudes of the two modes excited by the horn depends upon the ratio of horn aperture to box width, small horns exciting large amplitudes of TE₃,₀ The box length is adjusted so that the two modes, which have different guide wavelengths, are out of phase at the box aperture. The result is an addition of fields at the sides of the aperture and a partial cancellation at the center, sharpening the main lobe and raising the side lobes in the diffraction pattern of the horn. Charts and table of data given. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):200, 1946-02-15 MEYERHOF, W.E. STEPHENS, W.E. Geometrical structure of silicon surfaces University of Pennsylvania University of Pennsylvania, Division 14, NDRC Report 563 1945 16 p This report summarizes various methods which can be used to investigate silicon surfaces and describes experiments applying some of these methods to silicon surfaces. Methods used in these experiments were: Examination by metallurgical microscope (1000 times magnification), formation of collodion replica and examination by transmission electron microscope, and examination by gas adsorption, Studies were also made of the effect of etches on silicon surfaces, a treatment used in the manufacture of crystal rectifiers. A number of microphotographs of silicon surfaces were taken, some of which are included in this report. List of references given. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):200, 1946-02-15 MILLER, P.H., Jr. GREENBLATT, M.H. Crystal audio noise University of Pennsylvania University of Pennsylvania, Division 14, NDRC Report 387 1945 19 p This report describes apparatus used, theoretical basis for and results achieved in experiments on crystal audio noise. A new improved A.C. operated noise tester was necessary to replace the audio noise tester previously used which could not distinguish between crystals whose temperatures at 5000 cycles was less than about 1000. Noise temperature varies inversely with frequency throughout a. the audio range. Thus the effective noise temperature depends upon the frequency response characteristics of the audio amplifier. Diagrams, and charts. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):200, 1946-02-15 MILLER, P.H., Jr. GOODMAN, B. GREENBLATT, M.H. Note on the measurement of noise temperature University of Pennsylvania University of Pennsylvania, Division 14, NDRC Report 311 1944 7 p Analysis of theory of method used in the calculation of the noise temperature of a crystal of any capacity and i. f. impedance. (Method was described in PB 2634). The only unsatisfactory detail was the apparent dependence upon the i.f. tuning in the circuit of the value of the grid resistor as measured experimentally in the manner described in this report. Chart of noise data given. See PB 2634 Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):200, 1946-02-15 MILLER, P.H., Jr. GREENBLATT, M.N. Photoeffects in pure silicon University of Pennsylvania University of Pennsylvania, Division 14, NDRC Report 412 1945 13 p This report presents results of investigation of the photoconductive and photovoltaic properties of silicon under taken in order to find a correlation with the energy level structure of silicon indicated by bulk conductivity, thermoelectric end, Hall effect measurements. Samples investigated were generally pure DuPont silicon needles or melts made from these needles. Diagram of apparatus and charts of data are given. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):200, 1946-02-15 MONTGOMERY, DOROTHY D. Generation of harmonics by silicon and germanium crystals MIT Radiation Laboratory Report818 1945 8 p Comparisons were made of the harmonic generating qualities of silicon and welded-contact germanium crystals. Measurements were made upon the production of the second harmonic of three centimeter radiation and of the third harmonic of one centimeter radiation. The germanium crystals were found to be somewhat superior to the silicon, notably s for the generation of the third harmonic. Diagrams. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):200, 1946-02-15 NATHE, R.U. ROTH, W. Q1-2 and Q-3 servo amplifiers MIT Radiation Laboratory Report645-2 31 p The Q1-2 and Q-3 servo amplifiers described in this report are designed to control a Diehl two phase motor Type FPE-25 which positions some mechanical load in response to a small error voltage which is fed into the amplifier. The error voltage can be either d.c. or 60 cycle a.c. and represents the difference in position between the load and some independent mechanical shaft whose motion it is desired that the load shall follow. The error voltages are derived from potentiometers or control transformers which are also positioned by the servo motor. D.c. error voltage is first passed through a vibrator in the Q1-2 unit, giving a 60 cycle square wave which is impressed upon the primary of the input transformer. The amplifier incorporates an anti-hunt filter which introduces into the output a component proportional to the derivative of the input error voltage. This broadens the frequency response curve and greatly improves the response of the amplifier to transients. The maximum overall gain of the amplifier is about 2000. The Q1-2 amplifier includes a power supply for furnishing plate and screen voltages to the tubes. Both the power supply and vibrator are lacking in the Q-3 servo amplifier, which operates therefore, only from e.c. error voltages. Photographs and diagrams are included. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):200, 1946-02-15 NEHAR, H.V. Low-voltage K-band oscillator MIT Radiation Laboratory Report764 1945 19 p A low-voltage K-band oscillator developed at the Radiation Laboratory and which is now in the pre-production stage at the West Street Branch of the Bell Telephone Laboratories is described. Basically, it is a velocity-modulation reflex type of tube, more generally known as a reflex klystron. Its most important features are: (a) Waveguide output, (b) thermal tuning by means of a built-in triode, (c ) relatively high efficiency. It operates on 300 volts and about 15 ma, of current. Thermal tuning, with the short time constant attainable (1.5 sec) permits satisfactory automatic frequency control to be used not only in connection with systems as a local oscillator, but also as a bench oscillator for test purposes. A suitable method for stabilizing the tube, sufficient for most applications, is presented. Photographs, diagrams, and drawings are included. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):201, 1946-02-15 NOTTINGHAM, WAYNE B. Studies of British phosphors of the type "C", "H", "K", and "M" MIT Radiation Laboratory Report405 1943 49 p The MIT cathode ray tube test equipment was used to measure the light output and the decay of phosphorescence. following the electron excitations of these four types of British CRT screens. Comparisons are made between the British "M" type of double layer screen and the U.S.A.-P7 type of screen of the same construction. The British "C" phosphor is very similar to the special G.E. (U.S.A.) tube made with the yellow component of the P7 screen. There are no near equivalents in the U.S.A. tubes available for comparison with the British "H" and "K" screens. An analysis of the British electron gun characteristics is given. Tables and charts. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):201, 1946-02-15 PAO, C.E. Shaping the primary pattern of a horn feed MIT Radiation Laboratory Report655 1945 36 p The primary beam of a feed is shaped in order to obtain a better gain anu side lobes with a paraboloid antenna. The superposition method of shaping the primary beam of a horn has peen employed to accomplish the following results: (1) Narrowing the primary beam in the H-plane; (2) broadening the primary beam in the H-plane; (3) narrowing the primary beam in the E-plane; (4) shaping the primary beam in the E-plane, and (5) shaping the primary beam between two parallel plates. Diagrams and charts. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):201, 1946-02-15 PHILLIPS, R.S. Noise filtering properties of third detectors MIT Radiation Laboratory Report633 1945 20 p This report is a study of the effect of certain types of disturbances on the servo error signal in an automatic tracking radar system, the SCR-584 being taken as a model. A comparison is made of the ability of different third detectors to filter out noise from the servo error signal in an automatic tracking system. It is found on, the basis of the disturbances considered that the box-oar detector does the hest all round job. This detector is inferior to a fast charging diode detector with a 0.01 second discharging time only for coherent c-w jamming. The latter detector falls down principally on wildcatting, where it is easily saturated. A slow charging diode detector with a 0.01 second discharging time attentuates the signal considerably. Report includes graphs and a diagram of radar automatic tracking system. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):201, 1946-02-15 POLK, IRVING Synchro test equipment and test procedure MIT Radiation Laboratory Report434 1944 34 p The test equipment described measures the static angular accuracy, the dynamic accuracy and temperature runs. The static accuracy equipment is described at greater length, being measured by comparison of two dials read through microscopes with collimator scale. Angular measurements under continous rotation were made by measuring the change in phase voltages with a control transformer, calibrated at rest. Photographs and diagrams. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):201, 1946-02-15 PORTERFIELD, C.F CHU, L.J. Simplified search antenna for radio set AN/MPN-1 MIT Radiation Laboratory Report486 1945 19 p An improved S-band search antenna has been developed for GCA application. Major emphasis was placed upon fulfilling the present performance requirements with a design easy to manufacture, assemble, and adjust. The resulting antenna is an 8' x 4' x f = 27.5" cut paraboloid, fed by two horizon- tally-polarized dipoles, wave guide-fed, at λg/2 spacing. Cosecant-squared coverage is provided from 3 - 8.70 above the horizon. Cutoff is 20 db down at 3.2° below peak. Absolute gain is 31.5 db to give dependable 15 mile range. Azimuth beam width is 4.8° with side lobes of 2.6%. The impedance match is under 1.5 in SWR² over a 1.5 band. Photographs and charts given. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):201, 1946-02-15 POUND, R.V. Frequency discontinuities of local oscillator tubes due to high Q load circuits MIT Radiation Laboratory Report694 1945 14 p An analysis is given of the factors oroducing frequency discontinuities in the available output frequencies of en oscillator when it is coupled to a high Q cavity. A relation, [mathematical formula: 2 space Q1 over parenthethes 1 / Q subscript 0 + 1 / Q subscript 2 close parenthethes superscript 2 greater then or equal to 1 over C], is derived. This relation establishes the conditions to be met by the external cavity, if frequency discontinuities are to be avoided. Q[subscript 1]is the Q the input circuit. Q[subscript 2] that of the output circuit, Q[subscript zero] the dissipative Q of the cavity, and C is a quantity related to the pulling figure of the oscillator tube. A discussion is given of the implications of this relation and some experiments showing its validity ere described. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):201, 1946-02-15 PRESTON, W.M. PLATT, J.B. Magnetron stabilizing tuner MIT Radiation Laboratory Report473). 1943 27 p A reactance wave meter cavity is mounted on a quarter wavelength arm of a sliding waveguide I-section close to the magnetron output. With the correct distance between the magnetron and the T arm, a tuning range is obtained with X-band 2J21 tubes of 35 to 45 megacycles between half power points. Over a frequency range of 10 to 20 megacycles, the cavity reduces frequency changes of the magnetron due to temperature or other operating conditions by a factor of 3 to 3.5. Charts and diagrams. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):201, 1946-02-15 RAWCLIFFE, R.D. Deflection yoke design information MIT Radiation Laboratory Report674 1945 15 p Curves are presented of the inductance, deflection currents, and minimum sweep time for square iron core deflection yokes. These curves should assist in designing circuits for driving these yokes. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):201, 1946-02-15 REDHEFFER, RAYMOND M. Electrical properties of double wall and sandwich radomes MIT Radiation Laboratory Report483-11 Radome bulletin no.11 1945 37 p The treatment of transmission and reflection by single plane sheets in RL Report 483-4 has been extended to cover double wall and sandwich constructions, since these have proved particularly useful in radome design during the past two years. For the symmetrical double wall construction, the optimum internal spacing for normal incidence of approximately A/4 - d √ α in terms of the thickness and dielectric constant of each sheet, results in complete transmission for lossless sheets. A departure δ from optimum spacing for double wall or sandwich constructions results in a reflection coefficient of approximately 4 ¶ r δ / λ when r, the reflection coefficient of each sheet or sandwich skin, and δ / λ are small. Similar expressions are worked out for dissimilar sheets and lossy sheets, or for asymmetrical sandwiches. The optimum core thickness for a sandwich at normal incidence is approximately nλ/2√β - 2d(β - 1)/(β - 1) in terms of the dielectric constants λ of the skins and β of the core, where the skin thickness d << λ. The expressions are extended to give reflection and optimum spacing at arbitrary incidence for both polarizations. For most cases of practical interest, extensive computations are presented graphically to expedite design work. Report includes graphs, diagrams and a bibliography. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):201, 1946-02-15 REDHEFFER, RAYMOND M. Elliptical polarization produced by streamlined radomes MIT Radiation Laboratory Report483-13 Radome Bulletin13 1945 22p With an incident plane polarized wave, the polarization of the wave transmitted through a radome is linear in the following cases: At normal incidence; whenever E is parallel or perpendicular to the plane of incidence; and whenever the radome is single wall, an electrical quarter or half wave thick. In other cases the polarization is elliptical, the ratio of axes increasing with the phase difference δ until it equals the amplitude ratio k at δ 90°; and it increases with k to equal tan (δ/2.) when k = 1. These effects are more marked for round trip transmission, the value of being doubled and the transmission ratio being squared. For a single wall dome with dielectric constant α, the ratio of axes increases from zero at 0° incidence to [mathematical formula]the square root of (the square root of α -1)/(the square foot of α +1[)] (one way) or [mathematical formula] the square root of α -1 / the square root of 2 the square root of α (round trip) at 90° incidence. The worst thicknesses are those near a half wave, though the polarization is linear with an exact half wave. It is shown that the sum of the squares of the axes equals the power in the wave, and experimental methods are given for finding k and α. These depend on the fact that maxim ÷ minimum received amplitude, as the receiver is rotated, is equal to the ratio of axes in the ellipse; and a plot of 1/ (received amplitude) versus angle will give an ellipse similar to the one in the received wave. Report contains diagrams, graphs, and a bibliography. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(6) :202, 1946-02-15 ROBERTS, S. Feedback circuit for measuring output noise ratio of crystal rectifiers MIT Radiation Laboratory Report667 1945 9 p It is shown that an input circuit using a one stage feed-back amplifier can be designed for use in crystal noise measurements so that the noise output meter reading is unaffected by small variations in either conductance or susceptance of the crystal. Diagrams included. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(6) :202, 1946-02-15 ROSENBERG, PAUL. Sinusoidal potentiometers, Types RL10CB, RL1OCD, RLlOE, and RL1.4 MIT Radiation Laboratory Report423 1943 27 p The primary function of these potentiometers is to provide four d-c potentials which vary sinusoidally with the angle of rotation of the shaft of the potentiometer. The use, construction, and components of these potentiometers are given in detail. Photographs and diagrams. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(6) :202, 1946-02-15 ROSENBERG, PAUL Tokyo H₂X photographs; comparison of operational PPI photographs with PPI predictions of the ultrasonic radiar trainer MIT Radiation Laboratory Report715 1945 18 p PPI scope photographs made during B-29 operations in late 1944 are shown alongside of scope predictions made on the ultrasonic radar trainer. The trainer PPI photographs were obtained with an ultrasonic map which was made from non-radar information prior to the time when operational PPI photographs were available. A brief description of the trainer is appended. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(6) :202, 1946-02-15 ROTH, W. QA-2B servo adaptor MIT Radiation Laboratory Report645-1 1944 8 p A circuit which converts 400 cycle, or higher frequency, amplitude modulated error signals to d-c error signals is described. The circuit is used in connection with the Q-2 servo unit which utilizes only inputs in the form of d-c voltages. Photographs and diagram. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(6) :202, 1946-02-15 RUBENSTEIN, P.J. FISHBACK, W.T. Preliminary measurements of 10-cm reflection coefficients of land and sea at small grazing angles MIT Radiation Laboratory Report478 1943 21p Results of some preliminary measurements of 10 cm. reflection coefficients at small grazing angles are reported. For sea water the values for horizontal polarization are found to fall consistently below the theoretical predictions for a smooth surface, while for vertical polarization the measured and theoretical values are in good agreement. Testa over three kinds of land show no specular reflection. See also PB 2630. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(6) :202, 1946-02-15 SANDS, DOROTHY N. BAILEY, FRANCES S. Characteristics of recent 723A/B tubes MIT Radiation Laboratory Report570 1944 15p Routine and special tests have been made on recently received 723A/B tubes. Histograms show the power output, electrical tuning range between half power points, effectiveness of electronic tuning expressed in megacycles per volt change in reflector voltage, and mechanical tuning range. A graph of reflector voltage versus power output for three modes of a group of tubes indicates mode position and separation between modes. Charts. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(6) :202, 1946-02-15 SCHIFF, L.I. University of Pennsylvania Noise in orystal rectifiers University of Pennsylvania, Division 14, NDRC Report 1943 9p There are 2 classes of crystal rectifiers with respect to their noise production: Those exhibiting the amount of noise to be expected from a simple theory of the rectifying contact, and those producing appreciably more. The former is reasonably well understood. An outline of this theory is presented. The second class is hardly understood at all. A possible mechanism for this excess noise is presented. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(6) :202, 1946-02-15 SHERWIN, C.W. Clamping tubes MIT Radiation Laboratory Report572 1944 30p The characteristics of the 6SN7, 6SL7, 7F8, 6C4, 6Y6, 6AG7, 6AG5, and 6AK5 have been measured in several types of clamping circuits which use diodes, triodes and pentodes either alone or in various combinations. Most of these "clamps" have an impedmnce between 300 and 3000 ohms. The diode characteristics of the 6AC7, 6J6, 6SN7, 6SL7, 6H6, 6C4 and 6AK5 have also been measured. Graphs of the characteristics of several types of lamps and diagrams are included. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(6) :202, 1946-02-15 SILVER, S. Contribution of the dish to the impedance of an antenna. MIT Radiation Laboratory Report442 1943 17p The effect of the dish upon the impedance characteristics of an antenna arises from the re-radiation of a portion of the incident energy by the dish to the feed. It has been recognized that the dish makes a significant contribution to the impedance characteristics of an antenna. In this report a simple analysis of the interaction between the feed and the dish is developed from which a semi-quantitative estimate of its effect on the impedance can be obtained. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):203, 1946-02-15 SILVER, S. Double curvature surfaces for beam shaping with point source feeds MIT Radiation Laboratory Report691 1945 13p A family of double curvature surfaces is developed for use with point source feeds to produce a beam flared in one plane and having pencil beam characteristics in the trans-verse planes. The pencil beam characteristics are obtained by converting the incident spherical wavefront into a cylindrical wavefront whose generating elements are normal to the flare plane. To do this the section of the surface in every plane normal to both the reflected wavefront and the flare plane must be a parabola. The focal length of the parabola varies from section to section corresponding to the dispersion required for flaring the beam. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):203, 1946-02-15 SLATER, JOHN C. Operation and testing of reflex oscillators MIT Radiation Laboratory Report742 1945 42p This report deals with the theory and operation of the reflex oscillator. Discussion of theory includes a simplified treatment of the electronics of the oscillator; a fairly complete treatment of the circuit and its coupling to the external load; discussions of cold testing, Rieke diagram, power and frequency as functions of reflector voltage and of passive operation of the oscillator as a resistive and reactive load when it is not delivering power. Experiments to test the various features of the theory are described. Diagrams and charts. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):203, 1946-02-15 SMITH, A.H. University of Pennsylvania Use of different fillers in crystal rectifiers University of Pennsylvania, Division 14, NDRC Report 561 1945 11p In order to protect the point contact in crystal rectifiers from the effects of humidity, and mechanical vibrations, the ceramic body is usually filled with a mixture of opal wax and paratee. This normal proceeding is entirely ad-equate for temperatures less than 70°C in mixer crystals. At higher temperatures (app. 90°) the wax melts and runs out or chars. Video crystals are much more sensitive to small disturbances of the point contact and thermal movements of the filler often change the electrical characteristics imtortant for video performance. Results of investigations of these problems are presented in two sections. Part I describes the various fillers tried in video crystals and part II the results of an attempt to make crystals suit-able for higher temperatures. Characteristics of fillers and results of experiments are summarized in tables at the end of report. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):203, 1946-02-15 SMITH, W.V. Magnetron tuning and stabilization MIT Radiation Laboratory Report567 1944 29p Three conditions on magnetron stabilization are considered. Part A treats the situation for high stabilization when no loss is introduced, showing that a wide mode separation does not eliminate mode troubles. Part B considers stabilizations less then two, again with no loss introduced, seeing that a wide tuning range (10%) is possible. Part C covers the problem of high stabilization when loss is introduced into the circuit in order to reduce the :soling problems, a useful range of only 1-2%. resulting for stabilizations greater than 2, and for stabilization. of 30 or more, the impedance matching problems being serious in attaining even this tuning. Illustrations, diagrams and charts. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):203, 1946-02-15 SMULLIN, L.D. 1B38 pre-TR MIT Radiation Laboratory Report641 1944 12p Problems of crystal protection on high-power S-band systems are discussed, attempts to solve the burn-out problem being described. The best protection was the 1B38 pre-TR, used in conjunction with a 1B27 TR. This gives improved protection and adequate protection against higher frequencies (harmonics, etc.) resulting from spurious magnetron operation. Charts and diagrams. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):203, 1946-02-15 SMULLIN, L.D. LEITER H.A. 1B27 TR tube MIT Radiation Laboratory Report594 1944 32 p The 1B27 TR tube may be used in various cavities to tune from 7.8 cm. to 14 cm. covering a range of about 2 cm. in any one cavity. Leakage power is less then 10 mw peek for 5 KW Desk line power with a direct coutling attenuation of about 70 db. Recovery time curve shove a signal loss of less than 2db 6 microseconds after transmitter pulse and less than 15 db loss throughout a useful life of 500 hours. A high power test set for measurement of unloaded Q end keep alive interaction are described. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):203, 1946-02-15 SPENCER, R.C. Reflections from smooth curved surfaces MIT Radiation Laboratory Report661 1945 12 p These considerations are with respect to the calculations of microwave back scattering cross sections. Scattering cross sections are considered for smooth curvea surfaces and for surfaces of revolution. Diagrams and graph. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):203, 1946-02-15 STEINBERGER, J. Broad-bend coaxial-line horn MIT Radiation Laboratory Report770 1945 6p This report contains a brief description of the broad-band coaxial-line horn accompanied by sketches and photographs and graphs illustrating its electrical characteristics. The coaxial horn consists of a piece of coaxial line flared at the end. It has a beam width of about 75° in both planes and operates from 8 cm. to 12 cm. with a VSWR < 2.2. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):203, 1946-02-15 STEINBERER, J. Leaky waveguide rapid scanner MIT Radiation Laboratory Report557 1944 8p This scanner is a waveguide radiating through 2 slots running the length of the narrow side of the guide in the fashion of a Hansen horn. The side of the guide between these slots is a bar which moves to vary the a dimension. The useful scanning range is 45° lying all on one side of the normal to the scanner between 10° and 55° the limit not being theoretically imposed. There are diagrams of the antenna and of its operation. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):203, 1946-02-15 STEPHENS, W.E. University of Pennsylvania. Division 14 Handy guide to crystal types University of Pennsylvania, Division 14, NDRC Report 405 1945 4 p This report presents a table intended as a convenient classification of point contact rectifiers used in radar and beacons. Crystal types are grouped according to wave-length bend for which they are recommended and according to use, sensitivity and burnout. Mixer crystals are for use with local oscillators whereas video crystals are for detector use. References are listed. See also PB 2649 and PB 2652. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):204, 1946-02-15 STEPHENS, W.E. University of Pennsylvania. Division 14 Handy guide to crystal types, II University of Pennsylvania, Division 14, NDRC Report 405S 1945 4 p This report contains a table classifying types of point contact rectifiers used in radar and beacons. Crystal types are grouped according to the wave length band for which they are recommended and according to use sensitivity. and burnout. Mixer crystals are for use with local oscillators, video crystals for detector use. Characteristics of crystals are explained. See also PB 2646 and PB 2652. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):204, 1946-02-15 STEPHENS, W.E. University of Pennsylvania. Division 14 Handy guide to crystal types, III University of Pennsylvania, Division 14, NDRC Report 499 1945 9 p This report contains in Table I and explanatory materiel accompanying it, a guide classification of the types of point contact rectifiers used in radar and beacons. Crystal types are classified according to wave length band for which they are recommended, end according to use, sensitivity, and burnout. Mixer crystals are for use with local oscillators, whereas video crystals are for detector use. Table II gives test specifications for crystals. See also PB 2646 and PB 2649. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):204, 1946-02-15 STRANDBERG, M.W.P. Some automatic frequency control circuits MIT Radiation Laboratory Report687 1945 Reflector and thermal strut a.f.c. are discussed in terms of standard feed-back theory. Circuits for both rapid and, slow thermal strut a.f.c. are presented. For a.f.c. controlling over a large range, a "wrong side-band" it defined and discussed. The design of reflector a.f.c. circuits with high vecuum tubes is examined. A circuit with constant control rete and extreme component insencitivity is given. Formulae for calculating maximum correction rates are outlined. Diagrams. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):204, 1946-02-15 TAGGART, M.A. FINE, E.C. Parallel plate bends MIT Radiation Laboratory Report760. Off. Pub. Bd., Report, PB 2777. 1945 12 p There are many uses for 180-degree bends in parallel plate antenna systems. In a pillbox, the use of a 180-degree bend at the parabolic reflector would help eliminate two major pillbox disadvantages: The blocking of the aperture by the feed, and the difficulty in broadbanding. Since impedance measurements on straight 180-degree bends in parallel plates are very difficult to make, it was found advantageous to perform experiments with waveguide and scale the dimensions to pet parallel plate bends. This can be justified theoretically, and the exact analogy between the electromagnetic fields in parallel plate and waveguide bends can be made. It is found that the exact correspondeuce occurs when the waveguide dimensions, expressed in terms of guide wavelength, equal the parallel plate dimensions, expressed in wavelength of the wave component perpendicular to the bend. The dimensions for well matohed 180-degree waveguide bends were determined experimentally over a wide range of wavelengths. The results agree satisfactorily with theoretical calculations in the region for which the latter have been made. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):204, 1946-02-15 TAYLOR, R.E. Rieke diagrams and probe-plate plunger charts of lighthouse tubes in a re-entrant cavity MIT Radiation Laboratory Report564 1944 18 p Experimental data are presented which show the behavior of GL464A and RCA A222 tubes in an ARC cavity with respect to loading, probe position, and plate plunger position. Curves of constant frequency and Dower are plotted: (1) As a function of plate plunger position and probe position for matched load; (2) as a function of load for constant plate plunger and probe positions. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):204, 1946-02-15 TYSON, OWEN A. Antenna measuring equipment; high power C W transmitter for S-band MIT Radiation Laboratory Report601-2 1944 14 p Description of a CW transmitter, with provision for audiofrequency modulation, capable of generating energy in the range of 8-14 cm at a power of ten to twenty watts. All considerations are based upon requirements of use in antenna measurements. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):204, 1946-02-15 VANE, A.B. WILSON, D.G. Propagation over short paths and rough terrain at 200 mc/s MIT Radiation Laboratory Report468 1944 74 p The investigation of ground propagation characteristics was made to determine the feasibility of using existing radar and beacon equipment on short overland paths. A tri-Yagi antenna array was developed for use with an SCI-521 radar operating as an interrogator against a modified SCR-695 beacon. The summary of results is listed under three headings: Field intensity measurements, direction finding and possible adaptation to ground-to-ground Rebecca-Eureka system. Photographs, maps and charts. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):204, 1946-02-15 Van VLECK, J.H. Relation between absorption and the frequency dependence of refraction, The MIT Radiation Laboratory Report735 1945 18 p Report seeks to emphasize a very general relation which exists between the refractive index and the absorption coefficient. This relation enables one to determine the absorption if the dependence of the refractive index on frequency is known throughout the spectrum. Vice versa, the refraction can be computed if the absorption is known for all wave lengths. The index of refraction can be considered to be virtually constant throughout the microwave region. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):204, 1946-02-15 VOUGHT, ROBERT H. University of Pennsylvania. Division 14 Mass spectrometer investigation of the silicon tetrachloride used in making pure silicon University of Pennsylvania, Division 14, NDRC Report 558 1945 6 p This report presents results of analysis of silicon tetrachloride in order to determine percentage of carbon tetrachloride present. This silicon tetrachloride was used by the DuPont Company in preparing silicon for crystal units. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):204, 1946-02-15 WALKER, RICHARD M. Corners, bends end twists in rectangular waveguide MIT Radiation Laboratory Report585 1944 34 p This report is divided into the following three parts, theory being presented for each cart along with experiment-al results: Mitered waveguide corners, circular bends. and twists. The mitered waveguide corners are divided, in turn, into H-plane corners, mitered E-corners, and spacing between E and H-plane mitered corners. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):204, 1946-02-15 WALKER, RICHARD M. Dielectric windows in waveguide MIT Radiation Laboratory Report587 1944 17p Dielectric windows have been developed for permanent pressurization of waveguide in three types. using various dielectric materials. The three types are: Dielectric slug windows. dielectric sheet windows, and resonant aperture windows. The recommended design for each type is given, the three designs holding 30 psi pressure over a temperature range of 50° to +70°C. The first two designs are recommended for broad-bend applications where the peak power is 50 kw or more. The third design is a more rugged window mechanically but its use is limited to low power narrow-band systems. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):205, 1946-02-15 WALLMAN, H. SUITS, G.H. Modification of the amplifier of the AN/APN-2 to give sharp cut-off wide band response MIT Radiation Laboratory Report613 1944 5p The theory of the design of stagger-tuned amplifiers is applied and the required circuit constants obtained. Both theoretical and actual curves are given. Detailed instructions for modification of the AN/APN-2's RC-192 amplifier are included. Diagram. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):205, 1946-02-15 WALLMAN, HENRY Stagger-damned double-tuned circuits MIT Radiation Laboratory Report539 1944 9 p Stagger-damping is a scheme for achieving high gain IF amplifiers of very large bandwidths. The interstages are double-tuned circuits loaded on one side only, all tuned to the same frequency and having the same coefficient of coupling, but with different damping resistors. The method has not yet been tried. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):205, 1946-02-15 WALLMAN, HENRY Stagger-tuned IF amplifiers MIT Radiation Laboratory Report524 1944 50 p The simplicity of single-tuned circuits strongly commends itself to the IF amplifier designer, and most 2 or 3 Mc wide IF amplifiers are now of this sort. Unfortunately, with synchronous single-tuned circuits and present tubes one cannot make an amplifier wider than about 4 Mc; the principal reason is the rapidity with which bandwidth decreases as identical single-tuned stages are cascaded. This report describes a scheme-stagger-tuning of the individual single-tuned circuits, which essentially eliminates the shrinking of overall bandwidth, and thus has made possible very simple 10 and 16 Mc wide amplifiers. Graphs are presented (Fig. III4 and III5) which summariae the whole story for staggered pairs and triples, and condense an IF amplifier design into the work of a few minutes. Report contains other graphs, diagrams, and tables. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):205, 1946-02-15 WATTON, A. Instrument for measurement of grid current of vacuum tubes Army Air Forces Technical Report4948 1943 13 p Description of a project to obtain a method of measuring the grid currents of vacuum tubes at negative values of grid bias. The magnitude of these currents is not given in tube characteristic charts; resort had to be made to measurement. A circuit designed by Dubridge and Brown employing an electrometer tube, type FP-54, was selected for the measurement of this current. Report gives a description of the instrument employing this circuit, and the results of a performance (which were favorable). Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):205, 1946-02-15 WATTON, A. Modulated-beam cathode-ray tube phase meter Army Air Forces Technical Report5145 1944 29 p This report describes a phase meter developed to measure the phase-shift characteristics of amplifiers used in vibration measurement work. It employs a cathode-ray tube, in con-junction with a circuit establishing a circular time base on the screen of the tube, and a "clipper" circuit fed in turn by the two voltages, the phase difference of which it is desired to measure. The change in angular position of the semicircle obtained on the screen is the phase difference in the voltages. Photograph, diagrams, charts, and comprehensive list of reference. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):205, 1946-02-15 WHEELER, GERSHON J. Electrical and physical characteristics of some commercial feed-through filters MIT Radiation Laboratory Report785 17p This report covers the following electrical and physical characteristics of several commercial feed-through type filter: 1. insertion loss from 0.15 to 300 megacycles; 2. voltage and current ratings; 3. d-c resistance and impedance of coil at 60, 400, and 1600 cycles with various currents; 4. temperature rise with various currents and frequencies; 5. Components, configuration, cam size and weight. The filters tested were: Sprague Electric Company - JX 64 rated at 1 ampere - JX65 rated at 7 ampere; Solar Manufacturing Corporation - EN148 rated at 1 ampere - EN151 rated at 7 ampere; Western Electric Company - D170783 rated at 7 ampere - D170738. rated at 7 ampere. Diagrams of filters are given. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):205, 1946-02-15 WHEELER, GERSHON J. Method of shielding for filter insertion loss measurements MIT Radiation Laboratory Report786 1945 5 p The problem of measuring insertion loss of filters is really a problem in shielding, especially at high frequencies. Coupling between the units of the measuring equipment can be prevented only by an unbroken shield. This report describes a method of shielding which has been used successfully from 0.15 to 400 megacycles and is probably effective at higher frequencies. Photographs and drawing included. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):205, 1946-02-15 WHEELER, G.J. Reduction of power line noise in modulators MIT Radiation Laboratory Report634 1944 5 p Measurements were made on a hydrogen thyrat.ron line type modulator to determine the most efficient method of reducing radio frequency noise fed back on the power lines. The modulator delivered 3500 volt peak pulses to a 50 ohm resistance load. Proper design and internal shielding reduced the noise to an acceptable level without any filters in the circuit. Measurements covered frequencies from 0.2 to 20 megacycles. Diagram and charts. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):205, 1946-02-15 WHITE, HARRY J. MIT Radiation Laboratory Analysis of condenser charging in line type modulators. Part I. For linear reactor elements. MIT Radiation Laboratory Report4411943 64 p The purpose of this report is to collect and to derive in some detail the basic equations relating to the charging of the energy storage oondenser in line type modulators. The two charging schemes of greatest practical importance are: (1) From a constant voltage source through an inductance, referred to as D.C. and (2) from a sinusoidal voltage source through an inductance, referred to as A.C. Charts. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1(06):205, 1946-02-15 WHITHER, R.M. Waveguides without metal walls MIT Radiation Laboratory Report726 1945 8 p Comparison of properties of waveguide consisting of a rod or plate of dielectric material with no metal walls and conventional metal enclosed guide. Dielectric has two imnortant characteristics not shared by metal guide: (1) The "higher modes" radiate power transversely, causing attenuation and power-loss along the guide and leakage from one such guide to another. (2) Even for those modes which propogate power along the guide without attenuation, fields exist and power is carried longitudinally outside the guide as well as inside. This means that a mechanical sunnort or any other external object forms a discontinuity, with resulting reflection and power loss. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):206, 1946-02-15 WIESNER, J.B. Details of an X-band high level TR tube test bench MIT Radiation Laboratory Report417 1944 20 p The test bench was designed to facilitate the inter-comparison of high level leadkage power measurements on X-band TR tubes such as the 724A or the 1B24. In the test procedure the tube is mounted in a standard cavity and fired with high level pulsed R.F. A means is provided for measuring the power passed by the box. A description is given of each of the components of the system, as is a description of standard calibrating hole and a relative power unit which can be used for production measurements. Diagrams and photographs. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):206, 1946-02-15 WINTER, D.F. MILEY, H.A. Influences of pulse transformer design on 4J31-35 magnetron stability MIT Radiation Laboratory Report622 1945 12 p Report of investigation of eleven different pulse transformers on 4J31-35 magnetron stability. Pulse transformers studied had a 3 to 1 voltage ratio. Some produced broad and large initial current spikes; some, narrow needle-like spikes; others led to no spikes at all. Pulse transformers with small valves of leakage inductance were associated with the largest current spikes and greatest magnetron instability; those with largest values of leakage induction led to small current spikes, or no spikes, and to better magnetron performance. Photographs of magnetron impulses. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):206, 1946-02-15 WINTER. D.F. MILEY. H.A. Stability of magnetrons operated by spark gap modulators MIT Radiation Laboratory Report620 1944 11 p Teats of the operation of 4J31-35 magnetrons at a power input of 1.5 to 2 mw indicated that as much or more RF power could be obtained from a Model 6 spark gap modulator (without the addition of a despiker circuit) as from a herd tube modulator, and that double moding occurred more often and was more severe in the case of the hard tube modulator. Practical aspects and the nature of the results indicate that the RC despiker should be considered for general use in spark gap modulator systems. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):206, 1946-02-15 WOOD, F.B. Handbook of operating and maintenance instructions for Echo Boxes TES-8MK and TES-9MK MIT Radiation Laboratory ReportM-194 1945 91p These echo boxes are portable instruments for measuring radar overall performance, and must be individually calibrated by the user. They are intended for interim use until other models are available which are scheduled to be calibrated at the factory for standard ringtime and frequency calibration. They can be used to align radar receivers with the radar transmitter frequency. Relative transmitter power output and spectrum can be measured. Tests can be made for transmitter frequency modulation and transmitter pulling. T-R box recovery and receiver recovery can be measured. Charts. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):206, 1946-02-15 WOOD, P.B. Instruotions for types TFX-17GA, TFX-18GA, TFX-19GA, TFX-30EC, TFX-31EC, model 51 and similar types of micrometer frequency meters MIT Radiation Laboratory ReportM-217 1945 29p The units described, manufactured since March 1, 1944, are suitable for measuring frequencies between 8500 mc/sec. and 9850 mc/sec. Precautions are given against use of the wrong modes which cause incorrect frequency readings together with instructions for modifying units built prior to March 1, 1944, to reduce the response of these modes. Illustrations, diagrams and charts. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):206, 1946-02-15 WOODBURY, R.B. Freqency division with blocking oscillators, Part I MIT Radiation Laboratory Report544 1944 12 p Frequency division is efficiently accomplished by means of blocking oscillator frequency dividers. This report describes circuits for generating range marks at some sub-multiple of the master oscillator frequency, one-step dividers and pip-selector circuits for obtaining triggers at the repetition rate accurately locked to the master oscillator, and divider chains for obtaining low frequencies at a constant sub-multiple of the master oscillator. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):206, 1946-02-15 WOODBURY, R.B. Pulse characteristics of common receiver type tubes MIT Radiation Laboratory Report704). 1945 64p Curves for the following tubes are given: Diode connected-- 6AG7, 6AL5, 6C4, 6H6, 6J6, 6SN7, 6X5, 7F8, SD-834; triode connected -- 6AG7, 6AK6, 6C4, 6J6, 6SN7, 6Y6, 7F8, 28D7, HD-34. SD-705, SD-834; pentode or tetrode connected--6AG7, 6AK6, 6Y6, 28D7, HD-34. These curves represent vacuum tube applications where the grid, or in the case of diodes, the plate, is driven to a positive potential with respect to the cathode. Pulse grid and plate currents are plotted as a function of the other electrode potentials. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):206, 1946-02-15 WORRELL, F.T. Dielectric phase shifters for waveguide MIT Radiation Laboratory Report7881945 9p The basic principle of the dielectric phase shifter is discussed briefly. Models for the 1, 3, and 1U cm. regions are described, and their electrical properties given. Drawings of model designs are given. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):206, 1946-02-15 WORRELL, FRANCIS T. Flexible waveguides MIT Radiation Laboratory Report832). 194518 p The various types of service for which flexible waveguides are required are listed. Available information on the various types of flexible waveguide is presented in detail. References are made to more detailed reports. The types of waveguide discussed are: Wound metal hose, titeflex, seamless corrugated waveguide, vertebrae, and bellows. Recommendations are made as to which types of waveguide are suitable for the various types of service. Photographs, diagrams and tables are included in the report. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):206, 1946-02-15 WORRELL, FRANCIS T. 3-cm vertebrae flexible waveguide MIT Radiation Laboratory Report8311945 13p The general theory of operation and the construction of 3-cm vertebrae are discussed. Data are given on the standing wave ratio and loss introduced by the vertebrae for various distortions, and the power handling capacity. Information is given on their general usefulness and limitations. Report inoludes diagrams and graphs. Electrical Machinery, Equipment, and Supplies -- Electronics
United States
BSIR 1( 6):206, 1946-02-15 YEATER, M.L. Measurement of pressure in gas tubes by a radio-frequency method MIT Radiation Laboratory Report432). 1944 11p The RF pressure gauge described is suitable for use with ordinary gas tubes which have no special structures for pressure measurement. Its operation is based on the fact that the excitation voltage for an eleotrodeless glow discharge in a gas depends on the pressure of the as. A radio frequency voltage of the order of 1000 volts is applied between an external electrode and the metal parts inside the tube. The exact voltage at which a glow begins is a measure of the pressure in the tube. The theory of the eleotrodeless discharge is discussed briefly. Circuits and performance characteristics for the first model of this type of gauge used for testing hydrogen thyratrons, are described. Electrical Machinery, Equipment, and Supplies - Electronics
United States
BSIR 1( 6):207, 1946-02-15 YOUNG, R.T., Jr. Frequency and spectrum characteristics of standard magnetrons and the effect of change of shape of current pulse MIT Radiation Laboratory Report 52-6). 1943 32 p Operating frequencies and spectrum appearance have been observed for square pulses from 10-25 KV. and 5-40 ampere peeks for several right angle magnetrons in the SA. SS and SG bands. (γ90.1. 10.0 and 10.7). Frequency-spectrum performance charts are presented. A table of frequency shift with current and the effect on spectra at different operating points is given. All tubes have an extended poor spectrum region at low currents; below 7.5 amperes at 10 KV and 15 amperes at 20 KV. The SS-band tubes exhibit an extended poor spectrum region which begins at 25 amperes at 10 KV. and 35 amperes at 20 KV. Some tubes of all three classes have banded poor spectrum regions above 16-18 KV. at intermediate currents. These banded regions are much more liable to occur when the cathode pipe is against the south pole, of the magnet. Pictures of the spectrum current pulse and R.F. envelope are shown for both square and sloping Pulses. The spectra can be described in terms of the theory of frequency modulated pulses. The current pulse is uniformly more eloped for the magnetic field direction in one direction than the other. The effect of R.F. load on the spectrum is discussed. Report contains 7 spectrum performance charts, a frequency contour diagram, and many photographs. Electrical Machinery, Equipment, and Supplies - Electronics
United States
BSIR 1( 6):207, 1946-02-15 YOUNG, R.T., Jr. Present status of high power at S-band MIT Radiation Laboratory Report793 1945 27 p An account is given of components that are available for r-f peak powers of 2.5 megawatts. The HP10V magnetron which has been developed will deliver 2.5 megawatts peak power and 1250 watts average power on one microsecond pulses at 1800 gauss, 48 kv, and 140 peak amperes. This magnetron is a 10-oscillator tube with an anode diameter of 3 cm, cathode diameter 1.5 cm, and anode length 4 cm. Two modulators developed for use with these tubes are described. Appendix I lists dimensions and characteristics of magnetrons and magnets; Appendix II, dimensions and characteristics of modulator, Appendix iII, dimensions and characteristics of series spark gap; Appendix IV lists D-C power supplies, Appendix V lists characteristics of pulse transformers for high power systems, Appendix VI lists power of various components. Report incluues photographs, diagrams of equipment and a circuit diagram, performance chart for magnetron and Rieke diagram. Electrical Machinery, Equipment, and Supplies - Electronics
United States
BSIR 1( 6):207, 1946-02-15 YOUNKER, E.L. Vertebrae type flexible waveguide MIT Radiation Laboratory Report574 1944 22p The vertebrae type flexible waveguide consists of a aeries of separated choke-flange couplings held in place by a flexible tubular cover. It is electrically and mechanically capable of bending, shearing, stretching and twisting. Waveguides at both the K-band and R-band are described. Electrical Machinery, Equipment, and Supplies - Electronics
United States
BSIR 1( 6):207, 1946-02-15 DERNBACH, A.F. PIETRANGELI, G.J. Theory and design of radial windmills having vanes consisting of flat plates Army Air Forces Technical Report5133 1944 33p These windmills provide a simple power source for driving aircraft accessories where speed and/or over control is not required. Data on this type windmill are presented in the form of curves. Windmill performance was also computed theoretically. and these results compare favorably with test data when an effective radius is used in computing the letter. The efficiency is quite low, the maximum obtainable being about 25%. Tests on rotors led to the conclusion that from four to six blades would give optimum power. Electrical Machinery, Equipment, and Supplies - Generating, Transmission, and Distribution Equipment
United States
BSIR 1( 6):207, 1946-02-15 PERKINS, E.R. Synohro units and their characteristics MIT Radiation Laboratory Report740 1945 82p This report tabulates the pertinent data of all Army and Navy Synohros, also most of the commonly used General Electric "Selsyns," Bendix Aviation Co. "Autosyns" and other miscellaneous similar self-synchronous devioes, including resolvers. A brief Introductory discussion precedes the tables of synohro characteristic data. Artist sketches are included of representative synohros which serve to illustrate the general appearance of the unite. Included an these sketches. are all necessary outline dimensions (together with their tolerances, if critical) and enlarged detailed sketches of the shaft extensions, all of which information is sufficient to permit the proper design of mounts and devices for attaching to the synchro's rotor. BSIR 1( 6):207, 1946-02-15 Electrical Machinery, Equipment, and Supplies - Generating, Transmission, and Distribution Equipment
United States
 DOCUMENTS AND EQUIPMENT obtained during investigation of German X-ray and association industries Körting and Mathiesen A.G., Leipzig. Sales bulletins, etc. covering firm's lighting equipment products 1941 17p Sales literature describing lighting fixtures manufactured by this Leipzig firm. Illustrated. Electrical Machinery, Equipment, and Supplies - Miscellaneous
German
BSIR 1( 6):207, 1946-02-15 FROOMKIN, N.G. Technical inspection of German industrial manufacturing plant-Elmo GmbH, Stuttgart Army Air Forces Technical Intelligence ReportP- 3 1945 2 p This report describes unusual processes, facilities and developments at plant engaged in developing and perfecting a universal electro-hydraulio system adaptable, with a minimum of modification, to any aircraft. This meant the almost complete standardization of all systemic units. Major features of the system consisted of a large capacity reservoir, solenoid operated selector valves, engine driven piston-type pumps, activating cylinders, and auxiliary equipment. The most recent development is a hydraulic actuating cylinder that contains integral signal switches and also an integral automatic uplock or downlock or both. Its operation is described in detail. Drawings evacuated are listed. Electrical Machinery, Equipment, and Supplies - Miscellaneous
German
BSIR 1( 6):207, 1946-02-15 HOFFMAN, HARRY D. Method of making bulkhead stuffing boxes for electrical cables watertight 1945 3p Method, approved by German Navy, for making bulkhead stuffing boxes for electric cables watertight, is described in this report. Watertight integrity is obtained by filling stuffing box with rubber. It is not known just how resistant rubber is to fires and the method appears to be an awkward one. Report is accompanied by drawing. Electrical Machinery, Equipment, and Supplies - Miscellaneous
German
BSIR 1( 6):207, 1946-02-15 JOCREM, THEO. B. Survey of electrical control devices in Germany 1945 25p Report is based on vlsits to eleven German plants engaged in the manufacture of electrical control devices, such as manual switches and starters, magnetic contractors, relays, circuit breakers, and timing devices. Discussion of the devices is followed by brief description of the plants visited. There was little or no development in the German electrical control industry during the war years, and nothing radically new was observed. Electrical Machinery, Equipment, and Supplies - Miscellaneous
German
BSIR 1( 6):208, 1946-02-15 PHILIPS' TECHNISCHE RUNDSCHAU May and July 1939, v.4, no. 5 and no. 7. DOCUMENTS AND EQUIPMENT obtained during investigation of German X-ray and associated industries 1939 64p May and July copies of a technical review published by Philips Forschungsiaboratorium, Eindhoven, Holland. Contains illustrated articles in German on electrical, electronic and related subjects. Contents: May. Luftgekühlte Senderöhren, by M. van de Beek (p.129-135), Klangzerstreuer in Lautsprechern, by J. de Boer (p.136-14U); Einrichtung von Funkhäusern, ed. by S. Gradstein (p.140-148); Die Bedeutung einer [kons]tanten Scdeitelzeit bei Blitzlichtlampen, by J.A.M. van Liempt and P. Leydens (1.149-151). Die Gewinnung von Edelgasen, by H.C.A. Holleman, (p.152-159). July, Beleuchtung mit röhrenförmingen Lichtquellen, by N. A. Halbertsma and G.P. Ittman (p.193-200); Die Magnetfeldröhre als Ultrakurzwellengenerator, ed. by G. Heller (p.201-209); Ein Kathodenstrahloszillograph, by J.D. Veegens (p.210-216); Die Stimmung von Musikinstrumenten und Orchestern, by Balth. van der Pol and C.C.J. Addink (p.217-222). Each issue contains abstracts of newer publications issued by the N.V. Philips Gloeilampenfabrieken. Electrical Machinery, Equipment, and Supplies - Miscellaneous
German
BSIR 1( 6):208, 1946-02-15 PHILIPS' TECHNISCHE RUNDSCHAU Jan.-,May 1942. v.7, nos. 1-5. DOCUMENTS AND EQUIPMENT obtained during investigation of German X-ray and associated industries 1942 160p Copies for first 5 months of 1942 of a technical review published by Philips Forschungslaboratorium, Eindhoven, Holland. Contains illustrated articles in German on electrical, electronic and related subjects. * Contents: Jan. Die Beleuchtung des neuen Ultrechter Stadttheaters, by L.C. Kalff (p. 1-8); Die Akustik des neuen Utrechter Stadttheaters, by R. Vermeulen (p. 9-12); Betrachtungen über Metall-Texturen, by J. F. h. dusters (p. 13-2U); Die ,dessung von Spannungsspitzen in einer Studioanlage, by F. de Fremery and J. W. G. Wenke (p.20-3); Ein PH Messgerät mit sehr grossem Eingangswiderstand, by C. Dorsman (p. 24-32). Feb. Nachruf DR.H.c. Ir. G. L. F. Philips (p. 33); Über die Entwicklung von Mischlichtlampen, by J. Funke and P. J. Oranje (p. 34-40); Die Arbeitsweise von Triodenoszillatoren mit Gitterkondensator und Gitterwiderstand, by J. van Slooten (p. 41-46); Ein Registriergerät für die Frequenzanalyse schnell veränderlicher Klänge, by H. G. Beljers (p. 47-55); Prüfung von Starkstromkabeln mit aleich-spannung, by W. Hondius Boldingh (p. 56-62); Line grosse Kondensatorbatterie zur Phasenschiebung (p. 62-63). Aar. Der Antenneneffekt bei Rundfunkempfängern mit Rahmenantenne, by P. Cornelius (p. 65-72); Versuche fiber die Gasdurchlässigkeit von :Metallwänden, by J. D. Frost (p. 73-81); Die Textur von Nickeleisenbend, by J. F. H. Custers (p. 81-85); Modulatoren für Trägerfrequenztelephonie, by F. A. de Groot and P. J. den Haan (p. 86-94); Über die Porosität von Schweissnähten, by J. ter Berg (p. 94-96). Apr. Der Wirkungsgrad von Beleuchtungsanlagen, by H. Z ijl (p. 97 -103); Filter für Trägerfrequenzteiephonie-Anlagen, by Th. J. Weijers (p. 104-112); Ortsbestimmung von Kabelfehlern, by W. Hondius Boldingh (p. 113-120); Die Textur von kreuzgewaiztem Molybdän, by J. F. H. dusters. (p. 120-123); Ein Diode zur Spannungsmessung bei Dezimeterwellen, by M. J. O. Strutt and K. S. Knol (p. 124-128). May. Fernsehsender von 9 kW für Versuchszwecke, by M. van de Beek (p. 129-137); Der Einfluss von Veriusten auf den Eigenschaften von elektrischen Netzwerken, by J. F. Schouten and J. W. Kl[ä]te (p. 138-147); Generatoren far Kurzwellentherapie, by J. Fransen nd J. Ledeboer (p. 147-155); Über Schwingungen von Kontaktfedern, by J. A . Haring (p. 155-159)- The Feb. and May issues contain abstracts of newer publications issued by N. V. Philips Gloeilampenfabrieken. Electrical Machinery, Equipment, and Supplies - Miscellaneous
German
BSIR 1( 6):208, 1946-02-15 TERES, J. Antenna wire Army Air Forces Experimental Engineering SectionEXP-M-56-R42-54 1942 1 p A report on the chemical composition of a sample of antenna wire from the Junker's JU-88 airplane. Sample believed to be a zinc plated coated hard drawn woven wire. Electrical Machinery, Equipment, and Supplies - Miscellaneous
German
BSIR 1( 6):208, 1946-02-15 US Army. SIGNAL CORPS. German cable tracing amplifier "Ka. Spdü. Verst." Captured Enemy Communication Equipment ReportEEIS- 8-30 1945 7p Report on "Ka. Spdü. Verst.," manufactured in 1941, with manufacturer unknown. The "Kabel Spüren Verstarker" is an electrical device used in conjunction with a search coil and tone generator whereby cable may be traced for troubles, i.e., shorts, grounds, crosses, split pairs and vet spots (not opens). It may be used to improve the performance of U.S. cable test set I-51, by connecting it between the search coil and headphones of the I-51. (see War Department TM 11-379). The apparatus is built into the standard case for the German field telephone "Fernsprecher 33." A wiring diagram and 5 photographs are included. EEIS stands for Enemy Equipment Intelligence Service. Electrical Machinery, Equipment, and Supplies - Miscellaneous
German
BSIR 1( 6):208, 1946-02-15 WIKLE, HUGH H. SEINER. WALTER A. Survey of the ere carbon industry of Germany 1945 13p In general, the German arc carbon industry uses the same materials as in the U. S.; German production methods are much less efficient than U.S. methods from the standpoint of labor; quallty level is equivalent to American. The outstanding achievement was the development of large searchlights, first the 450 amp. size and the 1,000 amp, size at the end of the war. This required solution of the fundamental problem of arc instability observed at currents above about 400 amp. and of other difficult design problems. The authors believe that this search-light was of limited military value compared with other methods of aircraft spotting such as radar. Report includes detailed descriptions of searchlight carbons, brief notes on individual plants visited and photographs of burner mechanisms. Electrical Machinery, Equipment, and Supplies - Miscellaneous
German
BSIR 1( 6):208, 1946-02-15 WIKLE, HUGH H. STEINER, WALTER A. Survey of the carbon and graphite electrode industry of Germany 1945 26p This report deals with the process. equipment, and materials in the manufacture of carbon and graphite electrodes and evaluates the performance of the product. It is based on visits to five electrode manufacturing plants and seven representative users of electrodes and designers of electrode equipment. Substitutes for petroleum coke developed were pitch coke, "extract" coke resulting from synthesis of gasoline, from coal, a metallurgical coke, and an anthracite coke. Processes. equipment and production methods are essentially similar to those of U.S. industry. The investigators conclude that the performance quality of German electrodes made during the war ranged widely; some were nearly equal to U.S. products in quality. Production capacities for the manufacture of basic stock and for graphitizing graphite electrodes are given. Report also includes a description of German electric steel furnaces, illustrated by photographs, brief notes on blast furnace linings and on individual plants visited, and a wiring diagram. Electrical Machinery, Equipment, and Supplies - Miscellaneous
German
BSIR 1( 6):208, 1946-02-15 BOSTICK, W.H. Pulse Transformer Committee standard test methods for pulse transformer cores MIT Radiation Laboratory Report722 1945 28 p This report specifies a standard size of core materiel sample for the measurement of the d-c and pulse properties of pulse transformer core materials, and a standard core size and coil for the measurement of the pulse properties of pulse transformer cores. Circuits and techniques for making the d-c and pulse tests are described. Standard pulse durations and ranges of induction with various reverse fields, and methods of presenting the results, are specified. Methods of measuring space factor, lamination thickness, resistivity are covered. Also described are procedures for the preparation of traveling sample core and coils to be used for the calibration of test equipment end the evaluation of pulse transformer cores. These standards, prepared by the Subcommittee on Cores, have been approved by the Pulse Transformer Committee and are being published for the committee by the Radiation Laboratory. Electrical Machinery, Equipment, and Supplies - Miscellaneous
United States
BSIR 1( 6):209, 1946-02-15 BOWMAN, R.[E]. EGO, R.W. Shunt for the measurement of welding current in spot welders Army Air Forces Technical Report4659 1941 14 p This report describes tests conducted to measure welding current in spot elders. A shunt made of manganin, a coppernickel-manganese alloy, was calibrated with an electromagnetic oscilloraph. In addition to measuring the peak welding current, the wave form may be recorded by means of the film attachment to the oscillograph. Data obtained are presented in tabular and chart form. Drawings of shunt and knife edge holder are riven. Electrical Machinery, Equipment, and Supplies - Miscellaneous
United States
BSIR 1( 6):209, 1946-02-15 CROUT, P.D. Extension of LaGrange's equations to electromagnetic field problems; equivalent networks MIT Radiation Laboratory Report626 1941 30p It is shown that Lagrange procedures give equivalent networks, that a duality exists between electric and magnetic quantities which permits magnetic flux modes instead of electric current modes to be taken as the basis of the generalized coordinates, that Legrange's equations are still valid if the chosen current or flux modes change shape with time in any specified manner. Electrical Machinery, Equipment, and Supplies - Miscellaneous
United States
BSIR 1( 6):209, 1946-02-15 CROUT, P.D. Method of virtual displacements for electrical systems with applications to pulse transformers MIT Radiation Laboratory Report618 1944 66 p This method of virtual displacements is developed for obtaining the transient behavior of electrical systems with distributed constants. It involves the association of a number of assumed "current modes" with generalized coordinates, and gives a set of equations which duplicates the mesh equations of a corresponding equivalent lumped network. The method here is applied to the pulse transformer, the result being equivalent networks and procedures for calculating the constants in these networks. Diagrams. Electrical Machinery, Equipment, and Supplies - Miscellaneous
United States
BSIR 1( 6):209, 1946-02-15 CROUT, P.D. PAINTER, N.H. Treatment of echo box problems by Lagrangian procedures MIT Radiation Laboratory Report629 1945 70p In this report LaGrangian procedures are applied to the following echo box problems Coupling loops, dissipation in the walls, deviation of the cross-section of the cylindrical tube from circular, deviation of the planes of the ends of the box from perpendicularity to the axis, the presence of an air gap between the piston and the cylindrical wall, eccentricity of the piston, and the presence of a back cavity and of bakelite in this cavity. The results are placed in the form of matrices, which show how the equivalent network is affected and how the various meshes of this network are coupled by the above structural peculiarities. Experimental data are given which are in agreement with the theory obtained. An appendix lists integrals which occur in echo box theory. Electrical Machinery, Equipment, and Supplies - Miscellaneous
United States
BSIR 1( 6):209, 1946-02-15 CROUT, P.D. PAINTER, N.H. Treatment of echo box problems by Lagrangian procedures. Part II MIT Radiation Laboratory Report696 1945 20 p The two sections included in this report are additional applications of Lagrangian procedures to echo box problems and supplement those of RL Report 629. (Crout, P.D.. and Painter, N.H. A treatment of echo box problems by Lagrangian procedures. 1945. Off. Pub. Bd., Report, PB 2748.) A knowledee of the latter is essential to an understanding of the materiel presented here. The first section shows that the gap is not a small perturbation and the superposition of it with ellipticity of the cylinder introduces an interaction effect. The resultant additions to the equivalent network are tabulated. The second section gives a means of handling the question of gap geometry to a first approximation. The end result is a simple equation for the electric reluctance of the gap. Electrical Machinery, Equipment, and Supplies - Miscellaneous
United States
BSIR 1( 6):209, 1946-02-15 DOWNER, YAEL N. Dielectric constant and loss tangent computation MIT Radiation Laboratory Report483-19 1945 11 p This report describes a relatively short and simple method developed for computing the dielectric constant ϵ and loss tangent tan δ of low loss materials (tans < 0.1) from data taken by the shorted line method of measuring ϵ and tan δ. Computations are carried out by the use of charts which are based on approximate equations. Approximate formulas can be used at electrical sample thicknesses of about n/2 and(2 subscript n + 1)/4. List of references given. Electrical Machinery, Equipment, and Supplies - Miscellaneous
United States
BSIR 1( 6):209, 1946-02-15 EHLERS, F.E. Attenuation of RG-9/U cable as a function of temperature and frequency in the X-bandMIT Radiation Laboratory Report754). 1945 6 p This report gives data on the variations in the attenuation of RG-9/U cable as functions of both temperature and frequency over the X-band. The attenuation of the sample tested varied from 0.345 to .306 db/ft. from 3.13 to 3.53 cm. When the cable was heated to 65°C or greater, the attenuation increased but did not return to its original value after the cable was cooled again to room temperature. After about 9 cycles of heating and cooling, the temperature stabilized at 0.40 db/ft., or a permanent increase of 0.05 db/ft. A similar hysteresis was found at cold temperatures. There was found a variation of ± 0.01 db/ft. due to coiling the cable differently. The method and apparatus are described. 2 charts. Electrical Machinery, Equipment, and Supplies - Miscellaneous
United States
BSIR 1( 6):209, 1946-02-15 KALLMANN, H.E. High impedance cable MIT Radiation Laboratory Report529 1944 10 p A cable with an impedance of the order of 1,000 ohms is described. It resembles the usual flexible concentric cable with 3/8" O.D., but its inner conductor is a single-layer coil continuously wound on a flexible core of 110" diameter. The cable is suitable for video connections from chassis to chassis and to remote indicators. Manufacture is under way. The report contains five pages of diagrams and charts. Electrical Machinery, Equipment, and Supplies - Miscellaneous
United States
BSIR 1( 6):209, 1946-02-15 KALLMANN, H. E. Nonlinear networks as voltage regulators MIT Radiation Laboratory Report711 1945 11 p Nonlinear lattice networks and other simple bridge circuits can supply power with good regulation for large changes of input voltage. They consist only of ordinary resistances and nonlinear resistances such as Thyrite. They are suitable for any current and voltage, and independent of frequency; but they consume relatively much poser. Electrical Machinery, Equipment, and Supplies - Miscellaneous
United States
BSIR 1( 6):210, 1946-02-15 McCLURE, G.W. Two proposed methods of recording the position of a moving Link Crab MIT Radiation Laboratory Report730 1945 8p The report describes two methods of getting voltage data which will represent the position of a Link Crab which is moving about on a table under control of a Link Trainer. The first method employs two carriages running on tracks at right angles to each other. These follow the crab by photo electric control so as to give the rectangular coordinates of the crab's position at all times. The two carriages position potentiometers from which corresponding voltages can be obtained. The second method makes use of a long rack pivoted on the crab, the other end of which rotates a potentiometer to give range voltage. The rack also positions the rotor of a two phase selsyn to the relative azimuth angle. The range voltage is fed into the rotor of the selsyn and from the stators one can obtain voltages proportional to the rectangular coordinates of the crab's position. Diagrams. Electrical Machinery, Equipment, and Supplies - Miscellaneous
United States
BSIR 1( 6):210, 1946-02-15 PAINTER, N.H. Matching resistance curves by means of two linear ganged potentiometers and a three terminal resistance network MIT Radiation Laboratory Report610 1944 10p In a previous report ([MIT Radiation Laboratory Report] 502, PB 2485, page 3), it was shown how a disc thermistor and a two terminal resistance network could be used to match resistance-temperature curves at three points. There the calculations were straightforward and the investigation was carried to completion by specifying whether a given disc could or could not match a given curve. In this report two linear ganged potentiometers are used in a three terminal network to match resistance curves at four points. The usefulness of such a device is widespread. However here the calculations may not yield a final result the first time and necessitate a trial and error procedure; but the work involved is not difficult and a more complicated method not justified. Also on account of the freedom involved it is believed that e large number of curves can be matched in this way without undue difficulty, so that an investigation was not made of the limiting cases. The resultant curve will always be smooth and can be readily plotted before built. For completeness the case of a single potentiometer is appended. Electrical Machinery, Equipment, and Supplies - Miscellaneous
United States
BSIR 1( 6):210, 1946-02-15 REHKOPF, H.L. BOSTICK, W.H. GILLETTE, P.R. Pulse transformer core material measurements MIT Radiation Laboratory Report470 1943 24p A comparison of ribbon-wound butt-joint cores of several types of silicon steel shows that .0017" grain-oriented steel is the best for pulse transformer use. Test results and photographs are presented on the following points: 1. Hysteresis losses; 2. eddy-current losses; 3. voltage backswing; 4. effect of a gap on baokswing and μ subscript e 5. effect of low interlaminar resistance on μ subscript e. Charts and diagrams. Electrical Machinery, Equipment, and Supplies - Miscellaneous
United States
BSIR 1( 6):210, 1946-02-15 STONE, A.M. Low power RF switch MIT Radiation Laboratory Report675 1945 7p The device described performs RF cable interconnections automatically. A cable provided with type N fittings can be switched to either of two similiar lines by using any convenient switch, provided with the necessary mechanical motion by means of a powerful solenoid. Photographs and drawing. Electrical Machinery, Equipment, and Supplies - Miscellaneous
United States
BSIR 1( 6):210, 1946-02-15 WATTON, A., Jr. PLESHEK, L. Design notes on permanent magnet assemblies Army Air Forces Technical Report5146 1944 44p A presentation of the essential factors in the design of permanent magnet assemblies. A review is made of magnetic theory, including the calculation of air-gap reluctance by the method of "estimating the permeance of probable flux paths". The properties of a variety of magnetic materials of commerical importance are presented in tables and curves. A typical problem is worked out as an example. This study was made in connection with the design and fabrication of an oscillograph for use with a high-speed recording analyzer of propeller vibration stresses. Electrical Machinery, Equipment, and Supplies - Miscellaneous
United States
BSIR 1( 6):210, 1946-02-15 WHITE, HARRY J. PERKINS, JOSEPH R. Report on Type A and Type B pulse transmission cables end connectors MIT Radiation Laboratory Report424 1943 27p Design features, test data, and manufacturing facilities are discusscd for the Radiation Laboratory Type A (6 KV rating) and Typo B (13 KV rating) pulse transmission cables and connectors. These peak voltage ratings are believed to be ample and for all immediate and near future needs. The laboratory tests indicate that the cables and connectors are conservatively rated and that reliable operation is to be expected under field conditions. The Type A cables and connectors are intended primarily for airborne use and the Type B primarily for ground and shipborne use. Steel armor and neoprene sheath outer cable coverings are available in both cable types. "Notice of change in pulse cable specifications for Radiation Laboratory", dated January 28, 1944, 2 pages, is included in the report. Electrical Machinery, Equipment, and Supplies - Miscellaneous
United States
BSIR 1( 6):210, 1946-02-15 CLYMAN, E.J. HORNE, J.E. Technical Inspection of Fisher Werke at Goppingem S-4114 Army Air Forces Technical Intelligence ReportP-37 1945 2 p Report on visit to plant manufacturing nozzle diaphragms for the BMW 003 jet engines. Material used for these parts called Sicromel, containing 1.2-3% Si-al, 5-7% chromium, 1% carbon, and the remainder iron. A few turbine buckets had been made of a similar material containing nickel also. This company had manufactured cooking utensils before the war and later turned to the production of gasoline cans. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
German
BSIR 1( 6):210, 1946-02-15 FRITZLEN, G.A. Metallurgical analysis of German spinner Army Air Forces Engineering DivisionENG-52-447-1-2 1943 7P A metallurgical analysis of the material from a large German, three-bladed, propeller spinner. Spinner shell and centering bulkhead were fabricated from aluminum alloy sheet, somewhat comparable to American forging alloy A51S. Driving bulkhead was formed principally from a low carbon steel sheet. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
German
BSIR 1( 6):210, 1946-02-15 HILL, MORSE Study of materials used in airframe of Junkers 68 airplane Army Air Forces Technical Report4814 1942 44p The airframe of a Junkers-88 airplane, made about May 1940, and shot down in 1941, was examined to discover the German practice in selection and preparation of metals. The magnesium parts amounted to about 678 pounds, being cast, forged and rolled. Similar classifications of aluminum parts were found. Parts of steel, small parts of copper base alloys, and several miscellaneous materials were found. Most striking was the use of an 87.38 zinc-11.55 aluminum-1.07 copper alloy as small caskets in parts of the landing gear. The bearings of the control mechanism were generally of aluminum bronze. With a few exceptions the practice in the selection of alloys was much the same as that practiced in the United States, although larger numbers of magnesium parts, particularly forgings, were found. The compositions differed from those used in this country, but were generally in accordance with well-developed European practice. Tables and photographs accompany the report. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
German
BSIR 1( 6):210, 1946-02-15 OBERG, T.T. Magnesium alloy forged German motor mount 1941 12p Description of factual data on the chemical and mechanical properties of a forged magnesium alloy motor mount from a Daimler-Benz engine. It was found by the Air Corps, Materiel Division which made this investigation that the German alloy compares favorably with the American Alloy AZM in mechanical and chemical properties, and with the minimum properties specified for magnesium alloy forgings, Air Corps Specification No.11321, except that the latter is higher in aluminum content. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
German
BSIR 1( 6):211, 1946-02-15 ROSENFELD, S.A. Metallic specimens from German radio equipment Army Air Forces Engineering DivisionENG-56-R43-52 1943 4 p Laboratory report to determine the case metal and coatings of three metallic specimens from German rauio equipment. One was a commercially pure aluminum sheet coated with an aluminum paint, while the other two were magnesium alloys with an aluminum paint coating. Analyses of the chemical components of the specimens are included. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
German
BSIR 1( 6):211, 1946-02-15 SCHADE, H.A. Interrogation of P. W. Heinrich Sermann - Welding 1945 2 p Information obtained from prisoner of war on welding and welding rods. 1. Bühler Schwarz welding rod which was used for all pressure hull seams was a hollow cylinder with no coating on the outside. Advantages were that no changes of welding current were necessary; no preheating was necessary; slag was easy to remove. 2. Bühler Gelb, a yellow rod was used for light metals; it was speedy, easy to apply, and caused no distortion. 3. "Agile" was easiest to use, of hi-h quality, and used in difficult structural corners. Commodore Schade was head of the US Naval Technical Mission in Europe. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
German
BSIR 1( 6):211, 1946-02-15 SCHADE, H.A. Pivoted hangar doors 1945 7p Description, illustrated with diagrams and photographs, of the construction and operation of overhead horizontally pivoted hangar doors at Fliegerhorst, Erfurt (Bindersleben), Germany. This new type overhead steel hangar door is opened and closed on a horizontal pivot attached to the spandrel girder. Overturning effect of the eccentric door load is partially counteracted by a counterweight and operation is controlled by cables. Speed of closing is controlled by an oil cylinder and piston. Door provides a large clear opening without tracks either overhead or at grade and forms a canopy for weather protection. Commodore Schade was head of the US Naval Technical Mission in Europe. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
German
BSIR 1( 6):211, 1946-02-15 JAPANESE SHINN, D.A. Aluminum alloys from Japanese airplane Army Air Forces Experimental Engineering SectionEXP-M-56-4122 1942 4p Report on the tensile and chemical properties of aluminum alloy sheet and extrusions in the wing structure of a Japanese Nakajima 97MX-3 Airplane, Torpedo Bomber. Aluminum alloy sheet very similar to Federal specifications for Alclad 24S-RT. Some parts were evidently heat-treated and cold stretched to raise tensile properties. At time of report (June 15, 1942) such treatment had not been placed in production in this country. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
Japanese
BSIR 1( 6):211, 1946-02-15 BRODERICK, S.J. Effect of artificial aging and pre-stretching on the properties of Alclad 24S-T aluminum Alloy Army Air Forces Technical Report5103 1944 98 p A discussion of the increased mechanical properties of Alclad 24S-T aluminum alloy by strain hardening and artificial aging through heat treatment. Yield strength is benefitted, and the corrosion tendency can be controlled through careful selection of the proper elevated aging temperature. Results of experiments by the AAF and by aircraft companies with prestretched and artificially aged 24S-7 alloy are summarized, and there is a bibliography. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
United States
BSIR 1( 6):211, 1946-02-15 BRODERICK, S.J. OBERG, T.T. Properties of XA75S-T aluminum alloy Army Air Forces Technical Report4902, Add. I 1943 13p Additional stress corrosion data, showing that XA75S-T alloy is more stress resistant than the 24S-T alloy in the gage thickness. Flexural fatigue tests were made on both the Alclad XA75S-T and uncoated sheet material in the Krouse sheet fatigue machines and the fatigue limits determined at 20,000,000 cycles. Photograph, chart, and diagram. For earlier report, see PB 2908. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
United States
BSIR 1( 6):211, 1946-02-15 BRODERICK, S.J. Properties of 1A75S-T aluminum alloy Army Air Forces Technical Report4902 1943 35p Description and results of investigation made to determine the mechanical, metallurgical and corrosion resistant properties of aluminum alloy XA75S-T (in sheet form), a newly developed alloy containing zinc. Data obtained are presented in text, tabular, and chart form. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
United States
For addendum, see PB 2699. BSIR 1( 6):211, 1946-02-15 BROWN, C.G. CARPERTER, F. M. Strength of chrome-molybdenum tubing under bending due to transverse loading Army Air Forces Technical Report3860 1933 53p Description of apparatus and procedure in and results of tests to determine modulus of rupture of chrome-molybdenum tubing in bending. It was found that the modulus of heat-treated chrome-molybdenum tubing is affected by both ultimate tensile strength and D/t ratio. The modulus of rupture increases rapidly with decreasing D/t ratios and at a lesser rate for increase in ultimate tensile strength. Mathematical calculation of results and detailed tables and charts of data are given. Includes photograph of bending test set-up. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
United States
BSIR 1( 6):211, 1946-02-15 DUGGER, EDWARD SEDAM, H. W. Effect of controlled aluminum rivet head diameter upon the static shear and tensile strength in the Alclad 24S-T sheet Army Air Forces Technical Report5064 1943 50p It is known that among the variables which enter into the static strength of aluminum riveted joints are the effects of the ratio of the driven head diameter to the rivet shank diameter and the thickness of the sheet. It is believed that the use of thin sheet in some cases would be advantageous and could be used more frequently if the effects of variations in rivets were known. The purposes of this investigation were to (1) determine the effect of diameter of the driven head upon the static shear strength of 24S-T rivets driven into thin sheets (not exceeding 0.040 inch) of 24S-T Alclad; (2), (a) test these rivets in tension under the same conditions as in shear and (b) compare three types of test figures which have been used by various investigators for tension tests of rivets. Five conclusions are summarized. A list of references, tables, charts and photographs accompany the report. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
United States
BSIR 1( 6):211, 1946-02-15 EPSTEIN, ALBERT Effect of artificial aging on the tensile mad compressive properties of Alclad 24S-RT corrugations Army Air Forces Technical Report4542 1940 97p This report describes tests conducted and results obtained in determining the effect of artificial aging on the tensile and compressive stress strain properties of corrugated Alclad 24S-RT sheet, on column strengths of panels, and on cross-and with-grain tensile properties of the material. The effect on column strength of different methods for supporting the edges of corrugated panels was also considered and results obtained in these tests were compared with those obtained in other corrugated panel tests. Data are presented in text, tabular and chart form. A short bibliography is given. Photographs of specimens and set up for tests are included. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
United States
BSIR 1( 6):212, 1946-02-15 GOLDMAN, GEORGE M. Report on tests of Al7ST solid rivets in thin aluminum alloy Army Air Forces Technical Report4856 1942 72p "The object of this report is to publish the results of tests made on a series of single-row, lap-joint rivet specimen. These tests were undertaken to provide information concerning the load-deformation properties of the AN456 Al7ST brazier head rivets and the AN426 Al7ST 100 degree countersunk head rivet in both machine countersunk and dimpled sheet." "Test results of the investigation were then to be used in establishing a standardized rivet panel test procedure and in providing a system for the calculation of allowable design rivet loads. This latter part will be developed in a future report." Test data are presented in tabular form and numerous charts and photographs accompany the report. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
United States
BSIR 1( 6):212, 1946-02-15 GROSS, W.E. Noncorrosive fluxes for soldering canister chemical containers of terneplate; a memorendum report 1944 20p This report describes tests made to select a non-corrosive flux for soldering terneplate used in making canister chemical containers. Fluxes of rosin-alcohol and rosin-turpentineamyl acetate were found to be noncorrosive. On the basis of these tests the best flux had the composition: Rosin (WW grade) - 1 volume; gum turpentine - 1 volume. To each gallon of above mixture add 25 ml. amyl acetate. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
United States
BSIR 1( 6):212, 1946-02-15 HILL, MORSE Investigation of alternate steels. Part II Army Air Forces Technical Report4799 1942 36p Summary of investigations made on steels proposed as alternates for the structural alloy steels used in the aeronautical industry. More complete laboratory tests are Deported on AN-S-14 (AMS 6280) steel. Physical tests were completed on sheet samples (1/4 inch) of AMS 6355 (NT 8630) from two heats; one containing .25% carbon, the other 30% carbon. Fatigue tests reported on AN-S-15 and AN-S-16 (AMS 6320 and AMS 6322) steels show that these steels develop the same tensile strength-endurance limit relationship as other structural alloy steels. This report contains information supplementing data given in Part I (PB 2911). Data are presented in text, chart, tabular, and diagrammatic form. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
United States
BSIR 1( 6):212, 1946-02-15 HOUGHTEN, MATTIE L. Flexing (twisting and bending) characteristics of wire rope - Bibliography US Navy Dept. Research and Standards Branch, Technical Literature Research Series39 1945 7p This annotated bibliography was prepared in response to the request for literature research on flexing (twisting and bending) characteristics of electric cables and wire ropes by the Dielectric and Cable unit under the Electricity Section Code 335, Research and Standards Branch, Bureau of Ships. The report is arranged chronologically. The last seven items are abstracts to reports on Wire Testing by the American Society for Testing Materials. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
United States
BSIR 1( 6):212, 1946-02-15 KATZ, ROBERT Aircraft quality casting standards Army Air Forces Technical Report4796 1942 28p These standards are to be used in connection with the Handbook of Instructions for Airplane Designers, 6th edition, Rev. 5, amendment l; Vol. I, Sec. II, Part V, Par. 9, which states "No class A casting shall be accepted whose quality does not conform to Army Air Forces Aircraft Quality Casting Standards". Defects are described and defined and specimen radiographs presented. (19 full page radiographs.) FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
United States
BSIR 1( 6):212, 1946-02-15 MADDEN, BAXTER C., Jr. Investigation of R-301 clad aluminum alloy sheet Army Air Forces Technical Report5111 1944 92p Physical characteristics and mechanical properties of this material were investigated in considerable detail. Results of this investigation are presented in tables and charts and are extensively discussed. Among the conclusions are that R-301-T is in the category of high strength aluminum alloys. For certain forming operations it may be superior to other aluminum alloys. Fatigue strength, ballistic properties and paint adhesion are satisfactory. Spot welding properties superior to clad 24S-T sheet. Corrosion resistance is satisfactory. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
United States
BSIR 1( 6):212, 1946-02-15 MADDEN, BAXTER C., Jr. Investigation of stress corrosion. Part I, test methods and progress Army Air Forces Technical Report5144 1944 26p Stress corrosion, as related to aircraft structural materials, is the spontaneous cracking of the material while exposed to the atmosphere under stress. Three types of specimens are described: Static tensile, static cantilever, and fatigue cantilever specimens.. The method of stressing each type is given. Five different corrosive conditions are set forth. Appendix I is on the development of the method of loading static cantilever type specimens. Illustrations and graphs. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
United States
BSIR 1( 6):212, 1946-02-15 MARTELL, G.M. Mechanical properties of magnesium alloy tubing Army Air Forces Technical Report4725 1942 47p The mechanical properties of round, seamless tubing are presented. The tensile properties conform to the minimum requirements of Air Corps Specification No. 11318, Grade I, Amendment No.2, dated May 21, 1940. Other properties determined were the compressive or crushing and the column strengths and the torsional modulus of rupture. Tables, photographs and charts are included. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
United States
BSIR 1( 6):212, 1946-02-15 PEARSALL, C.S. Report on corrosion of copper, brass, and aluminum by gaseous dielectrics MIT Radiation Laboratory Report 53-17 1943 8p This report deals with a series of tests on relative rate of corrosion of metal conductors in contact with gaseous dielectrics exposed to electrical discharge. Test samples consisted of brass, copper and aluminum strips. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
United States
BSIR 1( 6):212, 1946-02-15 PRAY, B.A. FINK, F.W. Final report on development and evaluation of an economical corrosion resisting alloy for Quartermaster items (QMC-39) NDRC Research ProjectNRC-91 1945 24p In order properly to evaluate Alcuphos, the proposed low alloy steel containing 1.75% Al ,O.6% Cu and 0.l% P, a series of alloys were selected for comparison in laboratory corrosion tests. The Alcuphos was tested in both the annealed and the as-cold-rolled condition. The corrosion tests selected were (a) tropical humidity (110°F, 100% R.H.), (b) salt spray (20% NaCl at 95°F.), (c) industrial atmosphere (Battelle roof), and (d) spot tests with selected foods. These tests demonstrated, in every case, the susceptability to corrosive attack of Alcuphos. In some cases, the tests suggest that Alcuphos is less resistant than mild steel. On the other hand, both the stainless steels and the aluminum alloy showed excellent resistance to the above environments. No effort was made to evaluate the material for other than the Quartermaster items for which it had been proposed. This work was done at Battelle Memorial Institute and approved by War Metallurgy Division, National Defense Research Committee of Office of Scientific Research and Development. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT) QMC stands for US Army Quartermaster Corps
United States
BSIR 1( 6):212, 1946-02-15 SCHWARTZ, E.H. Investigation of the compressive strength properties of stainless steel sheet-stringer combinations. Part II Army Air Forces Technical Report4096 1935 33p This report presents data obtained from a second series of tests of stainless steel specimens. Due to the inexperience of the contractor in spot-welding stainless steal at the tine of fabrication of the first test specimens (Army Air Forces Technical Report 4010), a large number of specimens failed prematurely due to spot-weld failure. Replacement specimens were superior. Data are presented in table, text, chart, and diagrammatic form. A photograph of specimen is included. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
United States
BSIR 1( 6):213, 1946-02-15 SCHWARTZ, R.T. SHINN, D.A. OBERG, T.T. Mechanical properties of seamless tubing of zinc-copper-magnesium aluminum alloy Army Air Forces Technical Report4720 1942 40p This report gives the following mechanical properties of the heat treated seamless tubing of a 5% zinc-aluminum alloy, designated X74S-T by the Aluminum Company of America: Hardness, tension, compression, torsion, stress-strain data, column testing, and fatigue testing. Accompaniments are tables, curves and a photograph. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
United States
BSIR 1( 6):213, 1946-02-15 SHINS, D.A. OBERG, T.T. Aluminum alloy aircraft extrusions Army Air Forces Technical Report5228 1945 60p Several aluminum alloys may be used for extrusions for aircraft applications such as spar caps, skin stiffeners, and other structural components. Furthermore, the sizes and shapes of these extrusions may vary considerably. Therefore it was desired to determine the mechanical properties as related to these factors and also as related to the location along the extrusion length. A study of the recrystallization phenomena which occur in some cases was also made. The test results discussed and listed herein were obtained from tests of one type of extruded shape prepared from 14S, 24S, XA75S, XB75S and R303 aluminum alloys and from a few additional shapes made from 14S and 24S alloys. Several test reports from aircraft manufacturers and extrusion fabricators were also reviewed and some of the pertinent data are listed. The principal tests conducted were in tension in three directions for material from various locations in the sections, but in addition hardness, impact, compression, fatigue, corrosion tests and the examination of etched cross sections of the extrusions were accomplished. The report has tables, charts and illustrations. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
United States
BSIR 1( 6):213, 1946-02-15 SIMPSON, GUSTAVUS S., Jr. Properties of Alclad 75S sheet Army Air Forces Technical Report5129, Addendum I 1945 8p This report is on the solution heat treatment and aging treatment of Alclad 75S-T aluminum alloy sheet. Aging as described causes no loss in the physical properties of ultimate strength, yield strength and elongation. The commercial application of the aging treatment seems feasible. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
United States
BSIR 1( 6):213, 1946-02-15 VERNON, F.C. Tests of lapped riveted joints in thin gauges of sheet metal Army Air Forces Technical Report 47[8]1 1942 134 p This report presents data obtained in a series of tests conducted to determine the strength of equally spaced one, two, and three row riveted joints and also presents calculations on the design of the riveted joints, the tools used, and the sizes of rivets to be used with the various gauges of sheet metal. This information is essential for the original construction and repair of structures fabricated largely of aluminum alloy sheet steel. Materials used in test specimens were aluminum alloy sheet and aluminum alloy rivets from Air Corps stock. Data are presented in text, tabular, and chart form. Photographs of rivet specimens are included. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
United States
BSIR 1( 6):213, 1946-02-15 VERSHBOW, A.E. CZAPEK, E.L. The cooling of pressure tight containers MIT Radiation Laboratory Report462 1944 16p This report is a presentation and discussion of test results on the air cooling of pressure tight metal containers used in several types of airborne equipment. (The range of heat dissipation was up to 220 watts). With external convection free or forced, the use of fins was found to be unprofitable. The use of aluminum instead of steel for tank materials was found to give up to 6° C decrease in internal temperature. The temperature rise above ambient was found to vary progressively with the ambient. Studies were made of methods of internal circulation and of the use of outside jackets for external circulation. Charts and diagrams are given. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
United States
BSIR 1( 6):213, 1946-02-15 WARNER, D.M. Magnesium alloy extruded section (aluminum zinc magnesium A.M.C.- 57S) Army Air Forces Technical Report4514 1940 35p This study gives the physical properties including the tensile, compressive, shear and column values of an extruded form or section of the alloy A.M.C.- 57S, submitted by the American Magnesium Company as a proposed type or skin-spar for use in airplane wing structures. Investigation also included tests of hardness, density, specific gravity. Appended are tables, photographs and curves. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
United States
BSIR 1( 6):213, 1946-02-15 WHITMORE, M.R. Corrosion resistance of magnesium alloy sheet in contact with dissimilar metals Army Air Forces Technical Report4556 1940 20p Investigation of resistance as measured by tidewater exposure, the corrosion rate of magnesium resulting from dissimilar metal contacts being markedly accelerated. The only satisfactory couple is that produced by aluminum alloy 53S. Most severe corrosion occurs in contact with steel, and cadmium plating does not materially reduce the rate. Procedure, results, discussion and photographs. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
United States
BSIR 1( 6):213, 1946-02-15 WILLIS, A.C. HILL, MORSE. Investigation of alternate steels. Part I Army Air Forces Technical Report4799 1942 28 p Summary of results of investigations made on steels proposed as alternates for steels of high alloy content. Alternate steels covered by Specification AN-S-9, AMS 6320, AMS 6322 and AMS 6280 are dealt with in this report. Laboratory tests indicated that steels are suitable alternates for many of the aircraft steels which have higher nickel and total alloy contents. It was found that Aeronautical Material Specifications 6280, 6320 and 6322 are satisfactory for aircraft parts in which the desired physical properties can be obtained by heat treatment and provided requirements for model tests have been satisfied. Data are presented in text, chart, and tabular form. FABRICATED METAL PRODUCTS (EXCEPT ORDNANCE, MACHINERY, AND TRANSPORTATION EQUIPMENT)
United States
BSIR 1( 6):213, 1946-02-15 KERTESZ, Z.I. Spinach freezing in liquid nitrous oxide FIAT Final Report212 App n.d. 2p The two pages of this report are numbered 59 and 60. Page 59. appendix to accompany FIAT Final Report 212 (Off. Pub. Bd., Report, PB 1269) entitled "Quick freezing of foods in liquid nitrous oxide, I.G. Farben at Höchst", by Gordon MacKinney. It describes the preparation of and process for freezing food by introducing liquid nitrous oxide at about -90° C and 1 atm. pressure into the freezing chambers. As far as could be judged without cooking tests, the direct freezing in nitrous oxide will not produce better frozen plant foods than those obtained by good commercial practices in the United States. Relative costs of the two methods were not studied. Page 60 is a list of corrections to FIAT Final Report 212. Also distributed as FIAT Final Report 212 App (Superintendent of Documents Number W1.72/6:212 App FOOD AND KINDRED PRODUCTS
United States
BSIR 1( 6):214, 1946-02-15 ROTHSCHILD, G. ALAN BLATZ, PETER A. Manufacture of glazed kid and kid lining leather in Germany 1945 9p Production of calf as well as kid is very much favored in Germany by the low wage scale. Machine and hand operations arc slowly and carefully done, this factor being the principal reason for the quality of German leather. In general, there have been no outstanding new developments as to processing. "Arazeme" process seems to be more in favor in Germany than in the United States. Tanning is consistently two bath chrome for kid and one bath chrome for calf. A general description of tanning procedures is given.
GERMAN
LEATHER AND LEATHER PRODUCTS BSIR 1( 6):214, 1946-02-15 O'FLAHERTY, FRED QMC-17 Analysis of leather for certain mold resistant materials 1945 43p This special report of the Department of Applied Science in Tanning Research, University of Cincinnati, deals with the analysis of mold resistant leathers for their preservative content. Methods of removal of the preservative from the leather and determination of the active ingredient when pure or when present along with constituents of the leather system. Preservatives considered have been p-nitrophenol, pentachlorophenol, salicyl anilide, dichlorodihydroxy-diphenyl methane and 2-mercepto-benzothiazole. Methods of analysis are presented.
United States
LEATHER AND LEATHER PRODUCTS BSIR 1( 6):214, 1946-02-15 O'FLAHERTY, FRED QMC-17 Analysis of mold resistant leathers 1945 3 p This special report of the Department of Applied Science in Tanning Research, University of Cincinnati, is a brief summary of the salient facts outlined in a complete report on mold resistant processes for military leathers, particularly the use of para-nitro-phenol as a fungicide.
United States
LEATHER AND LEATHER PRODUCTS BSIR 1( 6):214, 1946-02-15 O'FLAHERTY, FRED QMC-17 Comparative data on vegetable tanned strap leather and latigo leather 1945 5 p This is a special report of the Department of Applied Science in Tanning Research of the University of Cincinnati, dated May l, 1945, supplementing a report of March 7, 1945 on "Comparison of Vegetable Tanned Strap Leather and Latigo Leather." The report gives additional details on the type of latigo involved in the hide submitted, and the relative ease with which the two leathers could be made more mold resistant.
United States
LEATHER AND LEATHER PRODUCTS BSIR 1( 6):214, 1946-02-15 O'FLAHERTY, FRED Leather, improvement of National Research Council Committee on Quartermaster ProblemsFinal Report QMC 17 1945 18p This report consists of a summary of the development of new synthetic tanning agents, September 15, 1942 to September 1, 1945; discussions on mold resistance of leathers; special treatments to improve leather; and studies to increase water resistance of Army shoe upper leathers. It also includes a chronological list of the special reports which were made by the Tanners' Council Laboratory, Institute of Scientific Research, University of Cincinnati.
UNITED STATES
LEATHER AND LEATHER PRODUCTS BSIR 1( 6):214, 1946-02-15 O'FLAHERTY, FRED Leather research, a report as of November 1, 1945 1945 11p A report from the Department of Applied Science in Tanning Research, University of Cincinnati on various aspects of research on leather under US Army Quartermaster Corps contract. Among the topics discussed are: Synthetic tanning agents, flame resistant leather; tannage from organic solvent systems; fat liquoring and stuffing; lubrication, preserving and waterproofing; and experimental glove leathers.
UNITED STATES
LEATHER AND LEATHER PRODUCTS BSIR 1( 6):214, 1946-02-15 O'FLAHERTY, FRED Mold resistant chamois; June 15, 1945 1945 7p This report supplements report of February 1, 1945 issued by the Department of Applied Science In Tanning Research, University of Cincinnati. Chamois is naturally somewhat resistant to mold but its resistance is considerably improved by para-nitro-phenol when added to the chamois in processing. Adding it at this time minimizes possible irritation and secures permanence of protection.
UNITED STATES
LEATHER AND LEATHER PRODUCTS BSIR 1( 6):214, 1946-02-15 O'FLAHERTY, FRED A report on some factors and special treatment studied in connection with improving the resistance to water penetration of flesh finished leather 1945 28p This report from the Department of Applied Science in Tanning Research, University of Cincinnati presents tests made of various formulations containing oils, greases, and waxes to increase the "waterproofness" of leather. Results vary widely and indicate that resistance to water penetration of flesh finished uppers depends largely on the intensity and amount of flexing under wet conditions.
UNITED STATES
LEATHER AND LEATHER PRODUCTS BSIR 1( 6):214, 1946-02-15 O'FLAHERTY, FRED Some notes on factors influencing water absorption and drying of Army shoe upper leathers 1945 24p This work carried on by the Department of Applied Science in Tanning Research, University of Cincinnati, was undertaken to determine water absorption and drying characteristics of Army shoe upper leathers and to determine some of the factors influencing these characteristics. Studies were made of the influence of flexing on new leathers, area variations in a side, and the amount of water absorbed by the leather and the drying rate of the leather after water absorption. Appendix has tables and graphs showing test results. LEATHER AND LEATHER PRODUCTS
UNITED STATES
BSIR 1( 6):214, 1946-02-15 O'FLAHERTY, FRED Tests conducted on butt flap cuttings, of table flesh finished leather after regular finishing, versus regular flesh finished leather submitted by six different manufacturers 1945 10p This is a report from the Department of Applied Science in Tanning Research, University of Cincinnati, on the comparative water resistance of leather butt flap cuttings which were oiled on the flesh side after the regular tanning processing and regular finish cuttings without such treatment. In some cases, there was slight improvement in resistance to water absorption and water penetration in the case of table oiling, het there was little significant difference. LEATHER AND LEATHER PRODUCTS
UNITED STATES
BSIR 1( 6):214, 1946-02-15 CLAXTON, EDMUND German cork composition industry 1945 11p German cork composition industry follows methods similar to those in the United States. An exception is a composition cork floor tile, which is not produced in America. Few new developments in composition appeared in the immediate prewar years, or during the war. The Vereinigte Bork Industrie A.G. controls the greater part of the cork composition industry and is, in turn, controlled by Swedish capital. See also PB 2580.
GERMAN
LUMBER AND WOOD PRODUCTS (EXCEPT FURNITURE) BSIR 1( 6):215, 1946-02-15 CLAXTON, E.C. German corkboard and structural low temperature insulation industry - Technical developments 1945 8p Major technical development of interest in the field was the production of considerable quantities of urea formaldehyde resin foams. Research work on other foams was carried out on a small scale. Both impregnated and baked corkbcard manufacture were continued, although on a reduced scale. Non-structural or loose-fill insulations were used to only a limited extent. Photographs and exhibits referred to in the text were forwarded to Military Planning Division, Office of the quartermaster General, Washington, D.C. See also PB 2580.
GERMAN
LUMBER AND WOOD PRODUCTS (EXCEPT FURNITURE) BSIR 1( 6):215, 1946-02-15 CLAXTON, EDMUND Survey of the German cork composition and insulation industry 1945 112p Report consists of three parts. I. German corkboard and structural low temperature insulation industry. Major technical development was the production of considerable quantities of urea-formaldehyde resin foams. Impregnated and baked cork board production were continued on a reduced scale. Nonstructural or loose-fill insulations were used to only a limited extent. II. German cork composition industry. Industry followed methods somewhat similar to those used in the United States, An exception is a composition cork floor tile. which the United States does not produce. Few developments made during, the war years. Manufacturers dependent on research of I.G. Farben with few technically trained employees of their own. III. German linoleum and hard surface floor covering industry. Under German war economy, manufacture of floor coverings was considered non-essential. Technical status of the industry, therefore, is of a pre-war character, except for certain substitute raw materials, im