Technical Report Archive and Image Library (TRAIL) - 175 Matching Results

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Coal-Mine Fatalities in November, 1930

Description: Report issued by the U.S. Bureau of Mines on the fatalities of coal miners in November, 1930. The common causes of death, and the location of the mines that the fatalities occurred in are listed. This report includes tables.
Date: December 1931
Creator: Adams, William Waugh & Chenoweth, L.
Partner: UNT Libraries Government Documents Department

Coal-Mine Fatalities in the United States, 1928

Description: Report compiled by the U.S. Bureau of Mines including statistics on fatalities in coal mines located in the United States as well as data regarding the various operations (e.g., number of miners employed and average production). The information is organized into tables for comparison and the text draws some overall conclusions in the summary.
Date: 1930
Creator: Adams, William W.
Partner: UNT Libraries Government Documents Department

Coal-Mine Fatalities in the United States, 1929

Description: Report compiled by the U.S. Bureau of Mines including statistics on fatalities in coal mines located in the United States as well as data regarding the various operations (e.g., number of miners employed and average production). The information is organized into tables for comparison and the text draws some overall conclusions in the summary.
Date: 1931
Creator: Adams, William W.
Partner: UNT Libraries Government Documents Department

Coal Mining in Europe: A Study of Practices in Different Coal Formations and Under Various Economic and Regulatory Conditions Compared with Those in the United States

Description: From Introduction: "The major purpose of this bulletin, as indicated in the preface by Dr. John W. Finch, Director of the Bureau of Mines, is to give a critical review of the coal-mining methods used in the principal producing countries of Europe, to describe the reasons underlying the adoption of these methods, and to contrast them with coal-mining methods employed in the United States."
Date: 1939
Creator: Rice, George S. & Hartmann, Irving
Partner: UNT Libraries Government Documents Department

Commercial Possibilities of the Texas-New Mexico Potash Deposits

Description: From Introduction Results of Test: "Among the domestic potash resources which were brought to the attention of the country during and after the war but were not utilized as a source of potash, although they indicated that they might furnish the cheap potash desired, were the potash deposits occurring with the think rock-salt formations of western Texas and southeastern New Mexico."
Date: 1930
Creator: Wroth, James S.
Partner: UNT Libraries Government Documents Department

Concrete Stoppings in Coal Mines for Resisting Explosions: Detailed Tests of Typical Stoppings and Strength of Coal as a Buttress

Description: From Forward: "This paper gives the details of tests to determine the design of stoppings capable of withstanding a pressure, applied to either side, of 50 pounds per square inch, as required by section 104 (a) of the Operating Regulations to Govern Coal-Mining Methods on Leased Lands on the Public Domain, issued in 1921 and quoted on page 3."
Date: 1931
Creator: Rice, George S.; Greenwald, H. P.; Howarth, H. C. & Avins, S.
Partner: UNT Libraries Government Documents Department

Contributions to the Data on Theoretical Metallurgy: [Part] 1. The Entropies of Inorganic Substances

Description: From Introduction: "The present work is an attempt to collect all the available data referring to one important thermodynamic property and to supply sufficient discussion to make the results readily usable by metallurgists. In the study of chemical or metallurgical reactions two factors have predominant importance-the free energy of reaction and the speed of reaction. The subject of this publication is so closely allied to the former that may be well to consider briefly some of the uses to which free-energy data may be put."
Date: 1932
Creator: Kelley, K. K.
Partner: UNT Libraries Government Documents Department

Contributions to the Data on Theoretical Metallurgy: [Part] 2. High-Temperature Specific-Heat Equations for Inorganic Substances

Description: From introduction: "The present work reviews the available high-temperature thermal data on inorganic compounds and gives representative specific-heat equations valid at high temperatures for use in thermodynamic calculations."
Date: 1934
Creator: Kelley, K. K.
Partner: UNT Libraries Government Documents Department

Contributions to the Data on Theoretical Metallurgy: [Part] 3. The Free Energies of Vaporization and Vapor Pressures of Inorganic Substances

Description: From Introduction: "It is the purpose of this present work (1) to apply the previously compiled entropy values and specific-heat equations to vapor-pressure and other pertinent data in obtaining heat and free energy of vaporization equations for inorganic substances valid up to the normal boiling or sublimation points (760 mm pressure), (2) to supplement wherever possible the data on heats and entropies of transformations and fusions, (3) to supplement wherever possible the data on heats and entropies of gases, and (4) to supply tables of vapor pressures for inorganic substances at various temperatures up to and including the boiling or sublimation point."
Date: 1935
Creator: Kelley, K. K.
Partner: UNT Libraries Government Documents Department

Contributions to the Data on Theoretical Metallurgy: [Part] 4. Metal Carbonates--Correlations ans Applications of Thermodynamic Properties

Description: From Introduction: "This publication proposes to assemble existing thermodynamic data for carbonates and to correlate so far as possible the results of decomposition-pressure determinations with the calorimetrically determined heats of formation and entropy values on the one hand and with solubility and standard electrode-potential data on the other."
Date: 1935
Creator: Kelley, K. K. & Anderson, C. T.
Partner: UNT Libraries Government Documents Department

Contributions to the Data on Theoretical Metallurgy: [Part] 5. Heats of Fusion of Inorganic Substances

Description: From Introduction: "Examples of the use of the derived heat-of-fusion values in the application of thermodynamics to problems concerning metallurgical practice are not given here, but the reader is referred to the textbook of Lewis and Randall (454), in which the methods and types of calculations are adequately portrayed, and to the papers of Maier (469, 470, 471), in which the application of thermodynamic methods to various problems of metallurgical interest has been illustrated and discussed."
Date: 1936
Creator: Kelley, K. K.
Partner: UNT Libraries Government Documents Department

Contributions to the Data on Theoretical Metallurgy: [Part] 6. A Revision of the Entropies of Inorganic Substances--1935

Description: From Introduction: "Moreover, a critical study of the existing vapor-pressure data made by the author (98) furnishes entropy of vaporization results suitable for obtaining approximate values of the entropies of a number of gases from the entropies of the solids or liquids. Consequently, it appears worth while at the present time to supplement the former publication, giving the new values now obtainable and making such revision in the older values as the data warrant."
Date: 1936
Creator: Kelley, K. K.
Partner: UNT Libraries Government Documents Department

Contributions to the Data on Theoretical Metallurgy: [Part] 7. The Thermodynamic Properties of Sulphur and its Inorganic Compounds

Description: Report issued by the Bureau of Mines discussing the thermodynamic properties of sulfur, and its inorganic compounds. As stated in the introduction, "the present bulletin has as its primary purpose the correlation of the thermodynamic properties of elementary sulfur and its inorganic compounds and the presentation, after careful consideration of all available information, of a self-consistent system of thermodynamic relationships for these substances" (p. 1). This report includes tables.
Date: 1937
Creator: Kelley, K. K.
Partner: UNT Libraries Government Documents Department

Contributions to the Data on Theoretical Metallurgy: [Part] 7. The Thermodynamic Properties of Sulphur and its Inorganic Compounds

Description: Report issued by the Bureau of Mines over studies on the thermodynamics of sulphur. As stated in the introduction, "the present bulletin has as its primary purpose the correlation of the thermodynamic properties of elementary sulphur and its inorganic compounds and the presentation, after careful consideration of all available information, of a self-consistent system of thermodynamic relationships for these substances" (p. 1). This report includes tables.
Date: 1937
Creator: Kelley, K. K.
Partner: UNT Libraries Government Documents Department

Copper Mining in North America

Description: From introduction: "In this paper are assembled and summarized many subjects relating to the copper industry in North America. Production of mines and districts, history of the industry in North America. Production of mines and districts, history of the industry, geology, of the principal deposits, and mining methods and costs are discussed."
Date: 1938
Creator: Gardner, E. D.; Johnson, C. H. & Butler, B. S
Partner: UNT Libraries Government Documents Department

Crater Wells, Richland Gas Field, Louisiana

Description: Technical paper issued by the Bureau of Mines over "the history of the craters in the Richland gas field. The data have been collected at various times over a period of four years. The equipment and methods of control are discussed, and photographs show the surface conditions at various intervals in the life of the craters" (p. 1). This paper includes tables, maps, photographs, and illustrations.
Date: 1932
Creator: Hill, Harry Blackburn
Partner: UNT Libraries Government Documents Department

Crushing and Grinding

Description: From introduction: "The purpose of this bulletin is to discuss the theory of crushing and grinding in relation to present-day discoveries and developments and to consider the various mechanical appliances from a theoretical basis."
Date: 1938
Creator: Gross, John
Partner: UNT Libraries Government Documents Department

Development and Production History on the Salt Flat and Other Fault Fields of East Central Texas

Description: Report issued by the Bureau of Mines over the Salt Flat fields in East Central Texas. As stated in the introduction, "this report deals with the development and production history of the Salt Flat field and gives comparative data on five outstanding fault fields. Two of these fields are producing from limestone and three from sandstone reservoirs" (p. 2-3). This report includes tables, maps, photographs, and illustrations.
Date: March 1931
Creator: Hill, Harry Blackburn; Bauserman, E. V. H. & Carpenter, C. B.
Partner: UNT Libraries Government Documents Department

The Development of an Electrolytic Method for the Determination of Inclusions in Plain-Carbon Steels

Description: Report issued by the U.S. Bureau of Mines on the specifications and development of methods used in plain-carbon steel production. Proposed methods and experiment results are presented. This report includes tables, graphs, and photographs.
Date: May 1933
Creator: Fitterer, G. R.; Sockman, B. E.; Krockenberger, E. A.; Meneilly, R. B.; Marshall, E. W., Jr. & Eckel, J. F.
Partner: UNT Libraries Government Documents Department