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Diaphragms for Aeronautic Instruments

Description: This investigation was carried out at the request of the National Advisory Committee for Aeronautics and comprises an outline of historical developments and theoretical principles, together with a discussion of expedients for making the most effective use of existing diaphragms actuated by the hydrostatic pressure form an essential element of a great variety instruments for aeronautic and other technical purposes. The various physical data needed as a foundation for rational methods of diaphrag… more
Date: 1923
Creator: Hersey, M. D.
Partner: UNT Libraries Government Documents Department
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Lecture on Aerodynamics

Description: This lecture deals with four main subjects: methods of studying air resistance, experimental aerodynamics, propellers and stability of airplanes.
Date: September 1923
Creator: Toussaint, A.
Partner: UNT Libraries Government Documents Department
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Atmospheric Waves and Their Utilization in Soaring Flight

Description: In soaring flight, ascending air currents are utilized and the interesting question is raised whether there are such currents which extend to any considerable distance and which can be utilized practically.
Date: March 1923
Creator: Baldit, M. Albert
Partner: UNT Libraries Government Documents Department
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The new French high-speed wind tunnel

Description: The plans for the wind tunnel at Issey-les-Moulineaux are discussed in relation to concerns about the Law of Similitude and propeller speed.
Date: May 1923
Creator: Robert
Partner: UNT Libraries Government Documents Department
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Rules and Regulations for Endurance Contest of Aviation Engines: Under the Auspices of the Aero Club of France

Description: Memorandum presenting the rules and regulations of the Endurance Contest of Aviation Engines, which was put on by the Aero Club of France. A description of the rules regarding the aircraft in competition, the characteristics of the tests that were conducted, and information regarding classification of the aircraft is provided.
Date: November 1923
Partner: UNT Libraries Government Documents Department
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Graetzin Special Carburetor

Description: Corresponding to practical requirements, this carburetor (especially the smaller sizes) may be regarded as the smallest form of a float carburetor and is adapted for use with all small engines, including auxiliary bicycle and similar engines.
Date: February 1923
Partner: UNT Libraries Government Documents Department
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Rules and Regulations of the 1923 Rhon Soaring-Flight Contest

Description: Memorandum describing the rules and regulations of the 1923 Rhön Soaring-Flight Contest. The requirements of the aircraft, pilot and competitor requirements, and prizes are provided.
Date: May 1923
Partner: UNT Libraries Government Documents Department
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Results of Assays of the New Albany Oil-Shale

Description: Report issued by the U.S. Bureau of Mines on a survey of the New Albany oil-shale deposits in Indiana. The experimental procedures for surveying and sampling these shale deposits are presented in detail. This report includes tables, and graphs.
Date: June 1923
Creator: Reeves, John R.
Partner: UNT Libraries Government Documents Department
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The Use of Oxygen or Oxygenated Air in Metallurgical and Allied Processes: Report of the Committee for the Application of Oxygen or Oxygenated Air

Description: Report issued by the U.S. Bureau of Mines on the possibilities of applying oxygenated air during metallurgical and allied processes. The methods and results of applying oxygenated air to these processes are presented. This report includes tables and graphs.
Date: July 1923
Creator: Davis, F. W.
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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Aviation Spirit - Past, Present, and Future

Description: The volatile fuel of the high-speed internal combustion engine has, in the past, consisted almost exclusively of the lighter distillates from crude petroleum. Alternative and supplementary fuels are discussed such as: tetraline, dekalin, alcohol, cyclo-hexenes.
Date: September 1923
Creator: Dunstan, A. E. & Thole, F. B.
Partner: UNT Libraries Government Documents Department
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"AM" Flexible Metal Joint

Description: A flexible metal joint used for connecting fuel lines is investigated and methods for assembly are included.
Date: February 1923
Partner: UNT Libraries Government Documents Department
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Wood Versus Metal in Airplane Construction

Description: The aim of this article is to present, in broad outline, a scientific method for solving the problem, "Wood or Metal." It will be shown that structural methods have by no means reached their final perfection. The strength of the different materials is discussed as well as different construction methods.
Date: June 1923
Creator: Seehase, H.
Partner: UNT Libraries Government Documents Department
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The Vertical Accelerometer, a New Instrument for Air Navigation

Description: This report endeavors to show the possibility of determining the rate of acceleration and the advantage of having such an accelerometer in addition to other aviation instruments. Most of the discussions concern balloons.
Date: October 1923
Creator: Laboccetta, Letterio
Partner: UNT Libraries Government Documents Department
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Fixed Air-Cooled Engines

Description: "It is proposed to analyze the advantages and disadvantages of large fixed air-cooled radial engines and to explain how the problems have been solved by the Bristol Aeroplane Company" (p. 1).
Date: February 1923
Creator: Fedden, A. H.
Partner: UNT Libraries Government Documents Department
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Trend to Be Given Aerodynamical Research and Experiment

Description: The causes of error in experiments conducted in wind tunnel tests are given and the value of in-flight tests are promoted. The four main causes explored include neglect of the laws of dynamic similitude, interference between the support and the model, nature of the air stream, and the influence of the walls of the tunnel.
Date: June 1923
Creator: Lèpere, M.
Partner: UNT Libraries Government Documents Department
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Aerial photography : obtaining a true perspective

Description: Report discussing a demonstration was given within the last few days at the British Museum by Mr. J. W. Gordon, author of "Generalized Linear Perspective" (Constable and Co.), a work describing a newly-worked-out system by which photographs can be made available for the purpose of exactly recording the dimensions of the objects photographed even when the objects themselves are presented foreshortened in the photograph.
Date: April 1923
Creator: United States. National Advisory Committee for Aeronautics.
Partner: UNT Libraries Government Documents Department
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"Am" Gasoline Cock

Description: The "AM" cock was designed specially for gasoline pipes on vehicles using internal combustion engines (airplanes, airships, automobiles, tractors, battle "tanks", boats, etc.). The report descirbes the functioning and construction of the device.
Date: February 1923
Partner: UNT Libraries Government Documents Department
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Static Soaring Flight Over Flat Sea Coasts

Description: Static soaring flight has hitherto been accomplished by means of two sources of energy: ascending air currents in the vicinity of obstacles and those produced by unequal heating. The latter has not yet been practically tested in soaring flight.
Date: November 1923
Creator: Georgii, W.
Partner: UNT Libraries Government Documents Department
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Factors of Safety and Indexes of Static Tests

Description: The physical resistance of passengers in establishing an upper limit to the strength of airplane cells is examined and arguments and experiments are discussed.
Date: May 1923
Creator: Bailly, Le
Partner: UNT Libraries Government Documents Department
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On the stability of oscillations of an airplane wing

Description: During a flight with a Van Berkel W. B. seaplane it was observed that the wing could perform violent oscillations. A theoretical and experimental investigation led to the conclusion, that in some cases an unstable oscillation of the wing-aileron system under the influence of the elastic and aerodynamic forces is possible without further external causes.
Date: August 1923
Creator: Von Baumhauer, A. G. & Koning, C.
Partner: UNT Libraries Government Documents Department
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