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Limits of Inflammability of Gases and Vapors

Description: From Definitions: "It is the object of this paper to present the results of a critical review of all figures published on the limits of inflammability of combustible gases and vapors when in admixture with air, oxygen, or other "atmosphere." Suspended dusts and liquid mists are not considered."
Date: 1931
Creator: Coward, H. F. & Jones, G. W.
Partner: UNT Libraries Government Documents Department
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Gold Mining and Milling in the United States and Canada: Current Practices and Costs

Description: Introduction Object and Scope of Paper: "This paper attempts to assemble and discuss briefly in one volume a number of subjects relating to the mining of gold, particularly from lode deposits, in the United States and Canada."
Date: 1932
Creator: Jackson, Charles F. & Knaebel, John B.
Partner: UNT Libraries Government Documents Department
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Clinker Formation as Related to the Fusibility of Coal Ash

Description: From Introduction Arrangement of Report: "The results of this investigation are presented in two main divisions. The first part covers the chemical and physical tests on average samples of the coals used-chemical analysis, float-and-sink tests to determine distribution of the ash, determination of the forms of sulphur, chemical analyses of the ash, and ash-fusabilibity determinations. The second part covers the clinkering studies and the comparisons of the results with the ash-fusibilty and oth… more
Date: 1932
Creator: Nicholls, P. & Selvig, W. A.
Partner: UNT Libraries Government Documents Department
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Laboratory Testing of the Inflammability of Coal and other Dusts Conducted by the Bureau of Mines

Description: From Introduction: "This paper endeavors to collect and describe all of the work in proper order, as briefly as is consistent with a good understanding thereof, and attempts to evaluate it in the light of present-day knowledge derived from large and small scale experiments in the United States and foreign countries."
Date: October 1931
Creator: Greenwald, H. P.
Partner: UNT Libraries Government Documents Department
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Quarry Accidents in the United States During the Calendar Year 1930

Description: Report published by the U.S. Bureau of Mines which is a compilation of accidents in quarries located in the United States with data regarding the number and kinds of accidents as well as information about the mining operations (e.g., number of men employed, kinds of quarries, amount of work performed, etc.).
Date: 1932
Creator: Adams, William W.
Partner: UNT Libraries Government Documents Department
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Metal-Mine Accidents in the United States During the Calendar Year 1931

Description: Report issued by the U.S. Bureau of Mines covering accidents that happened in metal mines located in the United States including statistics for injuries, fatalities, kinds and causes of accidents, and operational data, such as number of mine workers and shifts worked.
Date: 1933
Creator: Adams, William W.
Partner: UNT Libraries Government Documents Department
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Quarry Accidents in the United States During the Calendar Year 1932

Description: Report published by the U.S. Bureau of Mines which is a compilation of accidents in quarries located in the United States with data regarding the number and kinds of accidents as well as information about the mining operations (e.g., number of men employed, kinds of quarries, amount of work performed, etc.).
Date: 1934
Creator: Adams, William W.
Partner: UNT Libraries Government Documents Department
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Metal-Mine Accidents in the United States During the Calendar Year 1932

Description: Report issued by the U.S. Bureau of Mines covering accidents that happened in metal mines located in the United States including statistics for injuries, fatalities, kinds and causes of accidents, and operational data, such as number of mine workers and shifts worked.
Date: 1934
Creator: Adams, William W.
Partner: UNT Libraries Government Documents Department
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Underfeed Combustion, Effect of Preheat, and Distribution of Ash in Fuel Beds

Description: From Introduction: "This report covers studies of the underfeed-type fuel bed-exemplified by underfeed stokers-and of the effect of preheated air on what transpires in both overfeed and underfeed fuel beds."
Date: 1934
Creator: Nicholls, P.
Partner: UNT Libraries Government Documents Department
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Microscopic Structure and Concentratability of the Important Iron Ores of the United States

Description: Outline of Problem: "This paper covers a survey of 19 ores collected from seven of the more important iron-ore districts of the United States and is a contribution by the ore-dressing section of the United States Bureau of Mines to general research program on iron and steel being conducted by the Bureau."
Date: 1936
Creator: Cooke, S. R. B.
Partner: UNT Libraries Government Documents Department
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Concentration of Copper Ores in North America

Description: From Introduction: "This bulletin summarizes and discusses copper-concentrator methods, results, and costs from 1929 to 1931 and includes an account of trends and developments in the industry."
Date: 1936
Creator: Chapman, Thomas G.
Partner: UNT Libraries Government Documents Department
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Coal-Mine Accidents in the United States: 1931

Description: Report compiled by the U.S. Bureau of Mines including statistics on fatal and non-fatal accidents 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: 1933
Creator: Adams, William W.; Geyer, L. E. & Chenoweth, L.
Partner: UNT Libraries Government Documents Department
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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." more
Date: 1936
Creator: Kelley, K. K.
Partner: UNT Libraries Government Documents Department
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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
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Occurrence, Properties, and Preparation of Limestone and Chalk for Whiting

Description: From Introduction: "To encourage the domestic industry, the Bureau of Mines in 1931 undertook a study of the preparation of whiting from American raw materials and a comparison of the finished products with European whitings."
Date: 1937
Creator: Wilson, Hewitt & Skinner, Kenneth G.
Partner: UNT Libraries Government Documents Department
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Removal of Soot from Furnaces and Flues by the Use of Salts or Compounds

Description: From Objects of Investigation: "The main object of the investigation covered by this report was to determine whether there was truth in the popular belief and whether the compounds sold accomplished any part of what the makers claimed."
Date: 1932
Creator: Nicholls, P. & Staples, C. W.
Partner: UNT Libraries Government Documents Department
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Heat Transfer From a Gas Stream to a Bed of Broken Solids

Description: From Introduction: "This study of heat transfer is part of an extensive program of research of the iron blast furnace which the Bureau of Mines is conducting in the laboratory and in the field."
Date: 1932
Creator: Furnas, C. C.
Partner: UNT Libraries Government Documents Department
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Metal-Mine Accidents in the United States During the Calendar Year 1930

Description: Report issued by the U.S. Bureau of Mines covering accidents that happened in metal mines located in the United States including statistics for injuries, fatalities, kinds and causes of accidents, and operational data, such as number of mine workers and shifts worked.
Date: 1932
Creator: Adams, William W.
Partner: UNT Libraries Government Documents Department
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Permissible Coal-Cutting Equipment Approved Prior to July 1, 1932

Description: From Schedules, Approvals, and Approval Plates: " This schedule has been revised from time to time to conform with information gained from testing a large variety of equipment and to bring the requirements in line with new developments in the art. As the approval plate on a machine evidences compliance with the safety requirements established by the Bureau the user, in fairness to the Bureau and the manufacturer, should not operate such a machine if it has been changed from the design approved … more
Date: 1934
Creator: Ilsley, L. C.; Brunot, H. B. & Freeman, H. B.
Partner: UNT Libraries Government Documents Department
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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 en… more
Date: 1935
Creator: Kelley, K. K.
Partner: UNT Libraries Government Documents Department
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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
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Engineering Factors in the Ventilation of Metal Mines

Description: From Introduction Purpose and Scope of Report: "In the belief that the quickest and cheapest method of obtaining effective ventilation of metal mines with regard to air conditions that promote efficiency, health, and safety is through more general application of the engineering factors involved rather than by trial and error and this method of attacking ventilation problems will be facilitated by a simple, concise statement of these factors and the methods of using them, an attempt is made in t… more
Date: 1935
Creator: McElroy, G. E.
Partner: UNT Libraries Government Documents Department
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