Technical Report Archive and Image Library (TRAIL) - 350 Matching Results

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Analyses of Mine and Car Samples of Coal Collected in the Fiscal Years 1911 to 1913

Description: Report issued by the Bureau of Mines over analyses of coal samples collected from 1911 to 1913. The analyses and descriptions of the samples are presented and discussed. This report includes tables, and illustrations.
Date: 1914
Creator: Fieldner, Arno Carl; Smith, Howard I.; Fay, Albert H. & Sanford, Samuel
Partner: UNT Libraries Government Documents Department

Analysis of Alternating-Current Waves by the Method of Fourier, with Special Reference to Methods of Facilitating the Computations

Description: Report issued by the Bureau of Standards over analysis of alternating currents. These currents are applied with the Fourier method. Descriptions of the method, and the results are presented. This report includes tables, and illustrations.
Date: 1913
Creator: Grover, Frederick W.
Partner: UNT Libraries Government Documents Department

Annual Report of the National Advisory Committee for Aeronautics (1st). [Administrative Report Including Technical Reports Nos. 1 to 7]

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: 1916
Partner: UNT Libraries Government Documents Department

Annual report of the National Advisory Committee for Aeronautics (2nd) together with the message of the President of the United States transmitting the report for the fiscal year ending June 30, 1916. administrative report including technical report

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: 1917
Partner: UNT Libraries Government Documents Department

Apparatus and Methods for the Sampling and Analysis of Furnace Gases

Description: From Introduction: "It is the purpose of this paper to describe some apparatus and methods which have proved satisfactory to those engaged in the chemical work of the investigations mentioned. While these methods and apparatus have been designed more particularly with regard to analysis of furnace gases, their use is by no means limited to that purpose."
Date: 1911
Creator: Frazer, J. C. W. & Hoffman, E. J.
Partner: UNT Libraries Government Documents Department

An Apparatus for Measuring the Relative Wear of Sole Leathers, and the Results Obtained with Leather from Different Parts of a Hide

Description: Technical paper issued by the Bureau of Standards over studies conducted on the quality of sole leather. As stated in the introduction, "the development of a simple method for quickly determining the durability of sole leather seemed desirable, and this paper discusses a laboratory apparatus designed for this purpose and also presents the results of tests made to date to determine the relative wear of leather from different parts of the hide" (p. 3). This paper includes illustrations, and photographs.
Date: November 22, 1919
Creator: Hart, R. W. & Bowker, B. C.
Partner: UNT Libraries Government Documents Department

Approved Electric Lamps for Miners

Description: Report describing the development of a number of types of lamps for miners that meet the requirements of the Bureau of Mines. Discusses the features and qualities of these lamps in detail.
Date: July 1917
Creator: Clark, H. H. & Ilsley, L. C.
Partner: UNT Libraries Government Documents Department

Approximate Quantitative Microscopy of Pulverized Ores, Including the Use of the Camera Lucida

Description: Technical paper issued by the Bureau of Mines over microscopy of pulverized ores. As stated in the introduction, "this paper, which deals with the study of pulverized ores and the use of the camera lucida in such work, discusses an investigation undertaken at the Seattle and the Golden mining experiment stations of the Bureau of Mines" (p. 3). This paper includes tables, illustrations, and photographs.
Date: October 1919
Creator: Coghill, Will H. & Bonardi, J. P.
Partner: UNT Libraries Government Documents Department

Bibliography of Petroleum and Allied Substances, 1915

Description: From Introduction: "This bibliography, which is intended to be the first of a yearly series, has been compiled by the petroleum division of the Bureau of Mines with a view to satisfying this need. The references include only the more noteworthy writings that appeared during the year 1915 in both the United States and foreign countries. The references are arranged according to the subject classification on pages 3 to 11."
Date: 1918
Creator: Burroughs, E. H.
Partner: UNT Libraries Government Documents Department

Bibliography of Petroleum and Allied Substances in 1916

Description: From Introduction: " This bibliography follows the same general scheme as the bibliography of petroleum and allied substances for 1915. References to articles in these journals have been taken from such sources as were available and credit has been given to those sources. American and foreign patents have been entered by title, without abstracts. A few minor changes have been made in the scheme of classification, which is, on the whole, the same is given in the 1915 bibliography."
Date: 1919
Creator: Burroughs, E. H.
Partner: UNT Libraries Government Documents Department

Binders for Coal Briquets: Investigations Made at the Fuel-Testing Plant, St. Louis, Missouri

Description: From Introduction: "The problem is always to produce at a profit a briquet of satisfactory grade for the use intended. This problem will be made clearer by a brief summary of the available binders, followed by a preliminary discussion of the characteristics of a good briquet."
Date: 1911
Creator: Mills, James E.
Partner: UNT Libraries Government Documents Department

A Biological Survey of Colorado

Description: From introduction: "Report based chiefly on the field work prosecuted during 1905, 1906, 1907, and 1909. It is primarily a characterization of the several major distribution areas or life zones."
Date: August 17, 1911
Creator: Cary, Merritt
Partner: UNT Libraries Government Documents Department

Black Damp in Mines

Description: From Introduction: "This report presents the results of one phase of this study and shows how atmospheric air, after entering a coal mine, loses oxygen and gains carbon dioxide with resulting formation of so-called black damp."
Date: 1916
Creator: Burrell, G. A.; Robertson, I. W. & Oberfell, G. G.
Partner: UNT Libraries Government Documents Department

Briquetting Tests at the United States Fuel-Testing Plant, Norfolk, Virginia, 1907-8

Description: From Briquetting Tests: "The briquetting work undertaken at Norfolk had these specific objects: 1. To determine what percent of pitch or other binder was necessary to make a satisfactory briquet out of the coals tested. 2. To investigate the relative merits of different binders. 3. To provide briquets for comparative combustion tests of run-of-mine coal and the same coal briquetted."
Date: 1911
Creator: Wright, Charles L.
Partner: UNT Libraries Government Documents Department

Briquetting Tests of Lignite at Pittsburgh, Pennsylvania, 1908-9 : With a Chapter on Sulphite-Pitch Binder

Description: From Results of Briquetting Tests: "The results of the briquetting investigations conducted by the Government are expected to prove of considerable value, not only to the Government itself as the owner of extensive lignite deposits and largest single purchaser of fuel, but also to the people living in the the regions where lignite is found. The problem assumes still larger proportions when one realizes that the development of manufacturing industries in those regions depends upon the ability to obtain a cheap and satisfactory fuel. Although the results presented in this bulletin are not conclusive, they warrant the continuation of the investigators as soon as funds can be available for the purpose."
Date: 1912
Creator: Wright, Charles L.
Partner: UNT Libraries Government Documents Department

The Calcite Marble and Dolomite of Eastern Vermont

Description: From introduction: The object of this bulletin is twofold-to locate definitely and to describe accurately the marbles and dolomites of eastern Vermont, with a view to setting forth their possible economic uses and to discuss whatever features of scientific interest they may present.
Date: 1915
Creator: Dale, T. Nelson
Partner: UNT Libraries Government Documents Department

California Mining Statutes Annotated

Description: From Preface: "The purpose of such publication is to point out the laws and regulations best adapted to increase safety and efficiency in the mineral industry of the United States and to aid legislative bodies in framing uniform mining laws. The State of California, by reason of its historic interest in mining and by reason of its great extent of mineral land and its vast mineral deposits, has been selected for the first bulletin of the of the State series. This bulletin is submitted to the miners and operators and all persons interested in the mining exterprises in California and in those of other States in the hope that it will be accorded the same generous reception as was given Bulletin 94."
Date: 1918
Creator: Thompson, J. W.
Partner: UNT Libraries Government Documents Department