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Abstracts of Current Decisions on Mines and Mining: May to August, 1919

Description: Bulletin issued by the U.S. Bureau of Mines: "This publication is devoted exclusively to a review and abstracts of decisions based on the laws governing the rights and duties of mine owners, operators, miners, and persons trafficking in all kinds of mining properties. It includes abstracts of current decisions of all the Federal and State courts of last resort on questions relating to the mining industries" (Bulletin 61, p. 9).
Date: 1920
Creator: Thompson, J. W.
Partner: UNT Libraries Government Documents Department
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The aerodynamic properties of thick aerofoils suitable for internal bracing

Description: From Introduction: "The object of this investigation was to determine the characteristics of various types of wings having sufficient depth to entirely inclose the wing bracing, and also to provide data for the further design of such sections. Results of the investigation of the following subjects are given: (1) effect of changing the upper and lower camber of thick aerofoils of uniform section; (2) effect of thickening the center and thinning the tips of a thin aerofoil; (3) effect of adding a… more
Date: 1920
Creator: Norton, F. H.
Partner: UNT Libraries Government Documents Department
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The altitude laboratory for the test of aircraft engines

Description: Report presents descriptions, schematics, and photographs of the altitude laboratory for the testing of aircraft engines constructed at the Bureau of Standards for the National Advisory Committee for Aeronautics.
Date: 1920%
Creator: Dickinson, H. C. & Boutell, H. G.
Partner: UNT Libraries Government Documents Department
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Aluminum and Its Light Alloys

Description: Report is a summary of research work which has been done here and abroad on the constitution and mechanical properties of the various alloy systems with aluminum.
Date: 1920%
Creator: Merica, Paul D.
Partner: UNT Libraries Government Documents Department
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Annual Report of the National Advisory Committee for Aeronautics (4th). Administrative Report Including Technical Reports Nos. 24 to 50

Description: Report includes the National Advisory Committee for Aeronautics letter of submittal to the President, Congressional report, summaries of the committee's activities and research accomplished, expenditures, problems, recommendations, and a compilation of technical reports produced.
Date: 1920
Partner: UNT Libraries Government Documents Department
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Approved Explosion-Proof Coal-Cutting Equipment

Description: Report discussing description of equipment tested to prevent explosions when using coal-cutting explosions and provides explanation of fire damp protection theory.
Date: 1920
Creator: Ilsley, L. C. & Gleim, E. J.
Partner: UNT Libraries Government Documents Department
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Bibliography of Petroleum and Allied Substances, 1917

Description: From Introduction: "This bulletin is the third of the series of yearly petroleum bibliographies being published by the Bureau of Mines."
Date: 1920
Creator: Burroughs, E. H.
Partner: UNT Libraries Government Documents Department
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Bomb Trajectories

Description: The report is a mathematical treatise dealing with the trajectories of bombs of high terminal velocity, dropped from a great altitude.
Date: 1920
Creator: Wilson, Edwin Bidwell
Partner: UNT Libraries Government Documents Department
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Calculation of Low-Pressure Indicator Diagrams

Description: Report develops a fundamental conception and partial application of a method for calculating the pressure-volume relationships to be expected for any given engine design. It outlines a method of computing and interpreting low-pressure indicator cards.
Date: 1920
Creator: Kemble, E. C.
Partner: UNT Libraries Government Documents Department
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Carbureting Conditions Characteristics of Aircraft Engines

Description: Tests were conducted at the altitude laboratory erected at the Bureau of Standards for the National Advisory Committee for Aeronautics to determine the changes in engine performance with changes in atmospheric temperature and pressure at various levels above the earth's surface, with special reference to (a) the variables affecting the functioning of the carburetor and (b) the changes in performance resulting from variables in the carburetor itself. This report constitutes a concise statement o… more
Date: 1920
Creator: Tice, Percival S.
Partner: UNT Libraries Government Documents Department
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Casing Troubles and Fishing Methods in Oil Wells

Description: From introduction: "The Bureau of Mines, in its researches aimed to prevent wastes and to increase efficiency in oil-well practice, has investigated the matter of casing troubles and fishing methods. The results of the investigation are set forth in this paper."
Date: 1920
Creator: Curtin, Thomas
Partner: UNT Libraries Government Documents Department
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Characteristics of High-Tension Magnetos

Description: This report gives the results of an investigation made into the fundamental physical characteristics of high-tension ignition magnetos, and also describes the methods used for measuring the quantities involved.
Date: 1920
Creator: Silsbee, F. B.
Partner: UNT Libraries Government Documents Department
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Coal-Mine Fatalities in the United States, 1919: and Coal-Mine Statistics Supplementing Those Published in Bulletin 115

Description: Supplementary report published by the U.S. Bureau of Mines regarding fatalities in coal mines located in the United States: "In addition to giving monthly fatality tables for 1919, this report includes several tables that were published in various monthly statements since 1914, thus making available in one publication all of the data compiled since that time" (p. 9).
Date: 1920
Creator: Fay, Albert H.
Partner: UNT Libraries Government Documents Department
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Construction of Models for Tests in Wind Tunnels

Description: Report deals with the methods of constructing aerofoils and all other parts of a model airplane, including discussion of the degree of accuracy.
Date: 1920
Creator: Norton, F. H.
Partner: UNT Libraries Government Documents Department
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Development of Air Speed Nozzles

Description: Report describes the development of a suitable speed nozzle for the first few thousand airplanes made by the United States during the recent war in Europe, and to furnish a basis for more mature instruments in the future. Requirements for the project were to provide a suitable pressure collector for aircraft speed meters and to develop a speed nozzle which would be waterproof, powerful, unaffected by slight pitch and yaw, rugged and easy to manufacture, and uniform in structure and reading, so … more
Date: 1920
Creator: Zahm, A. F.
Partner: UNT Libraries Government Documents Department
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Effect of Altitude on Radiator Performance

Description: As an airplane rises to high altitudes the decrease in the density and the temperature of the air have important effects on the performance of the radiator. This report gives the results of a study of the effect of reduced pressure and temperature upon the capacity of airplane radiators. A method is presented by which the performance of a radiator at an altitude may be estimated for a particular speed of the airplane at a particular altitude.
Date: 1920
Creator: James, W. S. & Parsons, S. R.
Partner: UNT Libraries Government Documents Department
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The Effect of Kiln Drying on the Strength of Airplane Woods

Description: This report is a very complete treatise on the comparative strength of air and kiln dried wood. The series of tests includes 26 species of wood, approximately 100 kiln runs, and over 10,000 mechanical tests.
Date: 1920
Creator: Wilson, T. R. C.
Partner: UNT Libraries Government Documents Department
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Effect of Temperature and Pressure on the Sparking Voltage

Description: This report presents the results of an investigation which was to determine how the voltage necessary to produce the proper spark discharge varies with the pressure and temperature of the gas in which the discharge takes place.
Date: 1920
Creator: Loeb, L. B. & Silsbee, F. B.
Partner: UNT Libraries Government Documents Department
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The Efficiency of Small Bearings in Instruments of the Type Used in Aircraft

Description: This report deals with the construction and properties of bearings and pivots for use in instruments. The static and running friction for both thrust and radial loads was determined for a number of conical pivots and cylindrical and ball bearings. The static rocking friction was also measured for several conical and ball bearings under a heavy load, especially to determine their suitability for use in N. P. L. (National Physical Laboratory) type wind tunnel balance.
Date: 1920
Creator: Norton, F. H.
Partner: UNT Libraries Government Documents Department
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Experimental Research on Air Propellers, 3

Description: Report presents the results of wind tunnel tests of propellers that examined the influence of the following characteristics: (1) nominal pitch ratio 1.3 combined with a certain number of the more common or standard forms and proportions; (2) driving face slightly rounded or convex; (3) change in the location of the maximum thickness ordinate of the blade section; (4) pushing forward the leading edge of the blade, thus giving a rounded convex surface on the leading side of the driving face. (5) … more
Date: 1920
Creator: Durand, W. F. & Lesley, E. P.
Partner: UNT Libraries Government Documents Department
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Extinguishing and Preventing Oil and Gas Fires

Description: From Introduction: " As the subject of oil and gas is necessarily broad, no attempt is made in this bulletin to treat it exhaustively; rather the bulletin aims to point out what has been done by operators in the past, and to describe various fire-prevention methods and fire-fighting apparatus which are being used or adopted by many of the larger oil companies. These methods and apparatus, it is believed, if universally employed by operators, will largely decrease the present enormous annual los… more
Date: 1920
Creator: Bowie, C. P.
Partner: UNT Libraries Government Documents Department
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Fabric Fastenings

Description: The study of aeronautical fabrics has led to a consideration of the best methods of attaching and fastening together such materials. This report presents the results of an investigation upon the proper methods of attaching fabrics to airplane wings. The methods recommended in this report have been adopted by the military services.
Date: 1920
Creator: Walen, E. D. & Fisher, R. T.
Partner: UNT Libraries Government Documents Department
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