Technical Report Archive & Image Library (TRAIL) - 104 Matching Results

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Educational Agencies in Mining Communities

Description: Report on the importance of industrial education in the mining sector. It explains general education and facilities for specialized education for proficiency in a given field.
Date: April 1920
Creator: Read, Thomas Thornton, 1880-1947
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Supplies and Production of Aircraft Woods

Description: The purpose of this report is to present in brief form such information as is available regarding the supplies of the kinds of wood that have been used or seem likely to become important in the construction of airplanes, and the amount of lumber of each species normally put on the market each year. A general statement is given of the uses to which each kind of wood is or may be put.
Date: 1920
Creator: Sparhawk, W. N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Manufacture of Sulphuric Acid in the United States

Description: Report issued by the Bureau of Mines over the production of sulfuric acid. As stated in the introduction, "the present bulletin was prepared to cover the main facts in regard to the industry in this country, including a discussion of the supplies of sulfur-bearing raw materials, the situation of the acid plants, the principal points in regard to manufacturing processes, and the uses of the acid" (p. 2). This report includes tables, illustrations, photographs, and a map.
Date: July 1920
Creator: Wells, Arthur Edward & Fogg, Donald E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Ultra-Violet and Visible Transmission of Various Colored Glasses

Description: Technical paper issued by the Bureau of Standards over studies conducted on transmissions of ultra-violet energy through different colored glasses. As stated in the introduction, "in the present paper are given the transmissions for the visible and ultra-violet of a large number of glasses, mostly colored, which are not used primarily for eye protection, but which are useful for various other purposes" (p. 3). This paper includes illustrations, and photographs.
Date: March 19, 1920
Creator: Gibson, K. S.; Tyndall, E. P. T. & McNicholas, H. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Efflux of Gases Through Small Orifices

Description: Scientific paper issued by the Bureau of Standards over studies conducted on gas effusion rates. The methods used and the results of the studies are presented and discussed. This paper includes tables, and illustrations.
Date: January 28, 1920
Creator: Buckingham, Edgar & Edwards, Junius David
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A New Interferential Dilatometer

Description: Scientific paper issued by the Bureau of Mines over development of a dilatometer. The instrument is used in tests of thermal expansion. The methods are presented and discussed. This paper includes an illustration.
Date: February 28, 1920
Creator: Priest, Irwin G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Talc Mining in New York

Description: Report issued by the U.S. Bureau of Mines on the talc deposits in New York state. The report includes details on the geology of the deposits, and the mining and milling of the talc. This report contains illustrations.
Date: October 1920
Creator: Ladoo, Raymond B.
Item Type: Refine your search to only Report
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
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Nomenclature for Aeronautics

Description: Report defines the principal terms which have come into use in the development of aeronautics. It was prepared in cooperation with a committee engaged upon a similar undertaking in Great Britain. As a result this nomenclature is in substantial agreement with the one which has been adopted by the aeronautical authorities of Great Britain.
Date: 1920
Item Type: Refine your search to only Report
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.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Self-Luminous Materials

Description: Report outlines specifications for the preparation and application of self-luminous materials to be used for the illumination of various instruments, especially those used for aeronautics.
Date: 1920
Creator: Dorsey, N. E.
Item Type: Refine your search to only Report
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.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Strength of One-Piece Solid, Build-Up and Laminated Wood Airplane Wing Beams

Description: The purpose of this report is to summarize the results of all wood airplane wing beams tested to date in the Bureau of Standards Laboratory in order that the various kinds of wood and methods of construction may be compared. All beams tested were of an I section and the majority were somewhat similar in size and cross section to the front wing beam of the Curtiss JN-4 machine. Construction methods may be classed as (1) solid beams cut from solid stock; (2) three-piece beams, built up of three p… more
Date: 1920
Creator: Nelson, John H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Structure of Airplane Fabrics

Description: This report prepared by the Bureau of Standards for the National Advisory Committee for Aeronautics supplies the necessary information regarding the apparatus and methods of testing and inspecting airplane fabrics.
Date: 1920
Creator: Walen, E. Dean
Item Type: Refine your search to only Report
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.
Item Type: Refine your search to only Report
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.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Performance of a 300-horsepower Hispano-Suiza airplane engine

Description: The National Bureau of Standards tested a 300-horsepower Hispano-Suiza engine to determine the characteristic performance of the engine at various altitudes. The engine was operated at the ground, at 25,000 feet, and at intermediate altitudes, both at full loads similar to those that would be imposed upon the engine at various speeds by a propeller whose normal full-load speed was 1,800 r.p.m. Friction horsepower also was determined in order that the mechanical efficiency of the engine might be… more
Date: May 12, 1920
Creator: Sparrow, S. W. & White, H. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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