Quarry Accidents in the United States During the Calendar Year 1932 (open access)

Quarry Accidents in the United States During the Calendar Year 1932

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.
System: The UNT Digital Library
Metal-Mine Accidents in the United States During the Calendar Year 1932 (open access)

Metal-Mine Accidents in the United States During the Calendar Year 1932

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.
System: The UNT Digital Library
Underfeed Combustion, Effect of Preheat, and Distribution of Ash in Fuel Beds (open access)

Underfeed Combustion, Effect of Preheat, and Distribution of Ash in Fuel Beds

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.
System: The UNT Digital Library
Laboratory Studies of the Inflammability of Coal Dusts: Effect of Fineness of Coal and Inert Dusts on the Inflammability of Coal Dusts (open access)

Laboratory Studies of the Inflammability of Coal Dusts: Effect of Fineness of Coal and Inert Dusts on the Inflammability of Coal Dusts

From Introduction: "The work reported in this paper is part of a program of laboratory studies of inflammability of coal dusts started before the Bureau of Mines became a separate organization in 1910."
Date: 1935
Creator: Godbert, A. L. & Greenwald, H. P.
System: The UNT Digital Library
Microscopic Structure and Concentratability of the Important Iron Ores of the United States (open access)

Microscopic Structure and Concentratability of the Important Iron Ores of the United States

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.
System: The UNT Digital Library
Concentration of Copper Ores in North America (open access)

Concentration of Copper Ores in North America

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.
System: The UNT Digital Library
Contributions to the Data on Theoretical Metallurgy: [Part] 2. High-Temperature Specific-Heat Equations for Inorganic Substances (open access)

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

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.
System: The UNT Digital Library
Coal-Mine Accidents in the United States: 1931 (open access)

Coal-Mine Accidents in the United States: 1931

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.
System: The UNT Digital Library
Contributions to the Data on Theoretical Metallurgy: [Part] 5. Heats of Fusion of Inorganic Substances (open access)

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

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.
System: The UNT Digital Library
Contributions to the Data on Theoretical Metallurgy: [Part] 6. A Revision of the Entropies of Inorganic Substances--1935 (open access)

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

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.
System: The UNT Digital Library
Occurrence, Properties, and Preparation of Limestone and Chalk for Whiting (open access)

Occurrence, Properties, and Preparation of Limestone and Chalk for Whiting

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.
System: The UNT Digital Library
Removal of Soot from Furnaces and Flues by the Use of Salts or Compounds (open access)

Removal of Soot from Furnaces and Flues by the Use of Salts or Compounds

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.
System: The UNT Digital Library
Heat Transfer From a Gas Stream to a Bed of Broken Solids (open access)

Heat Transfer From a Gas Stream to a Bed of Broken Solids

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.
System: The UNT Digital Library
Metal-Mine Accidents in the United States During the Calendar Year 1930 (open access)

Metal-Mine Accidents in the United States During the Calendar Year 1930

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.
System: The UNT Digital Library
Permissible Coal-Cutting Equipment Approved Prior to July 1, 1932 (open access)

Permissible Coal-Cutting Equipment Approved Prior to July 1, 1932

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 without authority or if it has become unsafe through neglect or accident. The machine should be in proper condition, or the approval plate should be removed and destroyed."
Date: 1934
Creator: Ilsley, L. C.; Brunot, H. B. & Freeman, H. B.
System: The UNT Digital Library
Contributions to the Data on Theoretical Metallurgy: [Part] 3. The Free Energies of Vaporization and Vapor Pressures of Inorganic Substances (open access)

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

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.
System: The UNT Digital Library
Contributions to the Data on Theoretical Metallurgy: [Part] 4. Metal Carbonates--Correlations ans Applications of Thermodynamic Properties (open access)

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

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.
System: The UNT Digital Library
Engineering Factors in the Ventilation of Metal Mines (open access)

Engineering Factors in the Ventilation of Metal Mines

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 this bulletin to present the subject of metal-mine ventilation to mine operators in a practical way."
Date: 1935
Creator: McElroy, G. E.
System: The UNT Digital Library
Static Electricity in Nature and Industry (open access)

Static Electricity in Nature and Industry

From Introduction: "In this bulletin "static electricity" is used in its commonly accepted meaning to include the various manifestations that result from the coming together or neutralization of positive and negative charges with have been separated by friction between unlike substances or otherwise. Although the scope of the this report is rather broad, it deals primarily with static electricity as a hazard. Casual and experimental observations recorded herein are thus given for a background and for the purpose of suggesting hazards not yet recognized."
Date: 1939
Creator: Guest, Paul G.
System: The UNT Digital Library
Petroleum Refinery Statistics: 1930 (open access)

Petroleum Refinery Statistics: 1930

From Summary: "The year 1930 marked a turning point in record-breaking performances for refining industry. From the time of the first refinery statistics of the Bureau of Mines in 1916 through 1929 the utilization of crude at refineries and the production of the principal product (motor fuel) has increased steadily. In 1930, however, the depressed conditions had a noticeable effect on motor-fuel consumption, which only increased 5 per cent over that in 1929, compared with an average annual increase for the preceding decade of 16 per cent.
Date: 1932
Creator: Hopkins, G. R.
System: The UNT Digital Library
Explosion Tests of Pittsburgh Coal Dust in the Experimental Mine, 1925 to 1932, Inclusive (open access)

Explosion Tests of Pittsburgh Coal Dust in the Experimental Mine, 1925 to 1932, Inclusive

From Introduction and Summary: "The first of these was Bulletin 353, dealing with the tests of rock-dust barriers; the second is the present paper, which reports tests made to determine the effect on the explosibility of Pittsburgh coal dust of altering conditions under which the tests were made; the third, dealing with tests of dust prepared from approximately 20 coals taken from beds in mines in different parts of the United States, will follow after the completion of testing in progress at the time of writing."
Date: 1933
Creator: Rice, George S.; Greenwald, H. P. & Howarth, H. C.
System: The UNT Digital Library
Iron Oxide Mineral Pigments of the United States (open access)

Iron Oxide Mineral Pigments of the United States

From Summary: "This report reviews the occurrence of mineral pigments and allied iron ores and the nomenclature and common methods of classifying and testing many commercial mineral pigments used in this country."
Date: 1933
Creator: Wilson, Hewitt
System: The UNT Digital Library
Applied Methods and Equipment for Reducing Evaporation Losses of Petroleum and Gasoline (open access)

Applied Methods and Equipment for Reducing Evaporation Losses of Petroleum and Gasoline

From Scope of Report: "The subject matter in this bulletin is divided as follows: Theory of evaporation; methods of determining evaporation losses; lease operation; transportation and storage of crude petroleum; and evaporation losses of gasoline at the refineries."
Date: 1934
Creator: Schmidt, Ludwig
System: The UNT Digital Library
Coal-Mine Accidents in the United States, 1932 (open access)

Coal-Mine Accidents in the United States, 1932

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: 1934
Creator: Adams, W. W. & Geyer, L. E.
System: The UNT Digital Library