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Albert TE-1 Training Airplane

Description: The TE-1 is designed for the economical training of pilots and is a single seat parasol cantilever monoplane. It is nearly entirely made of wood, using a 40 HP. air-cooled Salmson A.D. 9 engine, and weighs 255 kg empty.
Date: December 1926
Partner: UNT Libraries Government Documents Department
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Aviation Engines in the Endurance Contest

Description: The contest for engines of great endurance had entries of 13 types by the following firms: Breguet, Farman, Fiat, Hispano-Suiza, Lorraine-Dietrich, Panhard-Levassor, Peugeot, Renault, and Salmson.
Date: December 1924
Creator: Lehr, G.
Partner: UNT Libraries Government Documents Department
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Measuring Vibration and Torque With the Oscillograph

Description: "The recent development of technical science demands maximum reliability of functioning, together with maximum utilization of construction materials. For this purpose we must know what stresses are produced during functioning. One cause of great stresses are mechanical vibrations and this report describes a method of using an oscilloscope to measure the stresses of rapidly changing phenomena" (p. 1).
Date: December 1924
Creator: Elsässer, R.
Partner: UNT Libraries Government Documents Department
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The Supermarine "Southampton" Seaplane: Observation or Bomber

Description: Purchased for the British Air Ministry, the Southampton seaplane uses 2 Napier Lion engines and has a boat hull with outriggers mounted on the wings. It was designed as a military aircraft and can be easily converted to a bomber. A description of the design, flight characteristics, and photographs and blueprints are provided.
Date: December 1926
Partner: UNT Libraries Government Documents Department
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The husker-shredder on eastern Corn Belt farms.

Description: Describes the uses and benefits of the corn husker-shredder. Includes a discussion of the costs involved in renting or buying a shredder.
Date: December 1928
Creator: Collier, George W., 1897-; Humphries, W. R. (Walter Raymond), b. 1886 & McComas, E. W. (Earl W.)
Partner: UNT Libraries Government Documents Department
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Destructive Distillation of Mixtures of Oil and Coal

Description: Report issued by the U.S. Bureau of Mines on the characteristics and behavior of oil and coal distillation processes. The effectiveness of the distillation processes and the properties of the oil and coal mixtures are presented. This report includes tables, graphs, and illustrations.
Date: December 1921
Creator: Davis, Joseph D.; Place, Palmer B. & Scott, G. S.
Partner: UNT Libraries Government Documents Department
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Industrial Accidents in the California Oil Fields

Description: Report issued by the U.S. Bureau of Mines on a study of the causes of employee accidents in California oil fields during the year of 1921 - 1922. This investigation was conducted to develop safety procedures and future accident prevention. This report includes tables.
Date: December 1923
Creator: Miller, H. C.
Partner: UNT Libraries Government Documents Department
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The common white wheats.

Description: Describes winter and spring varieties of white wheats and their production in the United States.
Date: December 1922
Creator: Clark, J. Allen (Jacob Allen), b. 1888; Martin, John H. (John Holmes), 1893- & Leighty, C. E. (Clyde Evert), b. 1882
Partner: UNT Libraries Government Documents Department
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[Check for Door Varnish, December 13,1921]

Description: Check from Forestburg School Board and secretary H. B. Caddell in the amount of $2.00 to Lyon Gray Lumber Company; the memo line says "Door, Top, & Varnish". The check is from First State Bank in Forestburg, Texas. The back of the check is stamped December 14, 1921 and is from the First National Bank in Saint Jo, Texas.
Date: December 13, 1921
Creator: Forestburg School Board
Partner: UNT Libraries Special Collections
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Airplane Drag

Description: It has been less well understood that the induced drag (or, better said, the undesired increase in the induced drag as compared with the theoretical minimum calculated by Prandtl) plays a decisive role in the process of taking off and therefore in the requisite engine power. This paper seeks to clarify the induced drag.
Date: December 1929
Creator: Töpfer, Carl
Partner: UNT Libraries Government Documents Department
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Experimental Investigation of the Physical Properties of Medium and Heavy Oils, Their Vaporization and Use in Explosion Engines Part 4

Description: This report presents a theoretical treatment of the vaporization process of medium and heavy oils. The results of this investigation, which were mostly obtained from the lighter components of the heavy fuels, require a 10- or 16-fold vaporization in comparison with gasoline. We must attain a still finer degree of atomization, in order to include the heavier components.
Date: December 1926
Creator: Heinlein, Fritz
Partner: UNT Libraries Government Documents Department
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Aeronautical Record: No. 1 (to June, 1923)

Description: Memorandum presenting an overview of the development of aeronautical industries and commercial aircraft as well as some of the problems that are resulting from it. Details of the aeronautical budget in various countries, organization of the air service, material exports, and airline operations are provided.
Date: December 1923
Partner: UNT Libraries Government Documents Department
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Nomogram for Correcting Drag and Angle of Attack of an Airfoil Model in an Air Stream of Finite Diameter

Description: In experimenting with airfoil models in a wind tunnel, the magnitude of the forces acting on the model is affected by the fact that the air stream in which the model is suspended, has a restricted cross-section. In order to utilize the results for an airplane in an unlimited quantity of air, a correction must be made. The magnitude of this correction was determined by Prandtl by the application of his wing theory.
Date: December 1924
Partner: UNT Libraries Government Documents Department
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Experiments on Self-Ignition of Liquid Fuels

Description: This report examines the cause and effect of the energy conversion in airless-injection engines. In order to obtain a criterion for the chosen working method, it takes into consideration the time relations between the individual processes. Observations of the engine alone do not suffice to obtain the necessary basis for a critical analysis of the processes.
Date: December 1926
Creator: Neumann, Kurt
Partner: UNT Libraries Government Documents Department
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Calculation of the Pressures on Aircraft Engine Bearings

Description: For aircraft engines the three principal operating conditions are idling speed, cruising speed, and diving with the engine stopped. In what follows, we will discuss a method which affords a good idea of the course of pressure for the above mentioned operating conditions. The pressures produced in the driving gear are of three kinds; namely, the pressure due to gases, the pressure due to the inertia of the rotating masses, and the pressure due to the inertia of the reciprocating masses.
Date: December 1929
Creator: Steigenberger, O.
Partner: UNT Libraries Government Documents Department
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