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OFR-28-72 Systems Analysis Of An Inherently Explosion-Proof Coal Mining Operation
The inherently explosion-proof mine (EPM) concept is based upon the non-flammability of certain combustible-oxidant-inert gas mixtures, and the effect of partial pressure of gases on physiological rea
Jan 1, 2012
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OFR-81(1)-81 Volume I - Precalculation Of The Effect Of Fires On Ventilation Systems Of Mines - Summary
By Rudolf E. Greuer
This report contains the practical application of a computer program for the simulation of ventilation systems under the influence of mine fires and other emergencies on five hardrock mines. The intro
Jan 1, 1981
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IC 8168 Injury Experience In Quarrying, 1959 - Introduction And Summary
By John C. Machisak
INJURY EXPERIENCE AND EMPLOYMENT DATA on all stone quarries and associated plants in the United States are presented in this publication for the calendar year 1959. Such related operations as the manu
Jan 1, 1963
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IC 8168 Injury Experience In Quarrying, 1959 ? Introduction And Summary (6ecd48bc-c21f-4a2b-bdfd-eb2d60ce50ec)
By John C. Machisak
INJURY EXPERIENCE AND EMPLOYMENT DATA on all stone quarries and associated plants in the United States are presented in this publication for the calendar year 1959. Such related operations as the manu
Jan 1, 1963
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OFR-128-85 Development Of Prototype Quiet Hard Rock Stoper Drill - Volume I
By Piyush K. Dutta
This report describes the design, development and manufacture of a prototype quiet hard rock stoper drill and results of its field tests. It is shown that the stoper drill noise level can be reduced f
Jan 1, 1985
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RI 4223 Bauxite in Cherokee and Calhoun Counties, Ala.
By Don M. Coulter
"INTRODUCTION Bauxite, in Appalachian Alabama, occurs in the Rock Run and Goshen Valley districts in Cherokee County; in Nences Creek Valley near Jacksonville; near Anniston in Calhoun County; north o
Mar 1, 1948
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RI 3257 Production of Explosives in the United States during the Calendar Year 1933
By V. E. Erwin, W. W. Adams, E. V. Walters
"Increased production of explosives in the United States in 1933 compared with 1932 is shown by statistics compiled by the Demographical Division, Health and Safety Branch, United States Bureau of Min
Nov 1, 1934
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RI 4740 Petroleum Engineering Study Of The Weber Pool, Washington County, Okla.
By Kenneth H. Johnston
The Weber pool in Washington County, Okla. (fig. 1), covers an area extending from 2 miles east and slightly north of Bartlesville, Okla., to a point approximately 2-1P tiles northeast of Dewey, Okla.
Jan 1, 1950
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IC 8531 Strippable Reserves Of Bituminous Coal And Lignite In The United States
The strippable reserves of bituminous coal and lignite in the United States were calculated in accordance with the prevailing conditions of seam thickness and depth of overburden in each of the severa
Jan 1, 1971
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RI 3353 Earth Vibrations Caused By Quarry Blasting - Progress Report I ? Introduction
By J. R. Thoenen
This paper outlines briefly results of seismic measurements recorded in the vicinity of quarry blasting under practical operating conditions. The data cover field work done from January to the middle
Jan 1, 1937
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RI 4440 Pilot-Plant Concentration Of Arkansas Aluminum Ores
By S. M. Runke
The purpose of the work described in this publication was to determine, on a pilot-plant scale, the practicability of concentrating low-grade bauxite deposits to render them suitable for the extractio
Jan 1, 1949
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IC 8315 Wyoming Iron-Ore Deposits - Description, Beneficiation Processes, And Economics (c32c420a-e8af-4801-8eae-8e33dcecd86b)
By C. M. Harrer
The location, features, quality, and extent of iron ore deposits are evaluated in this Bureau of Mines report. The results of pioneer beneficiation on Wyoming taconites and their success are discussed
Jan 1, 1966
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IC 8315 Wyoming Iron-Ore Deposits - Description, Beneficiation Processes, And Economics
By C. M. Harrer
The location, features, quality, and extent of iron ore deposits are evaluated in this Bureau of Mines report. The results of pioneer beneficiation on Wyoming taconites and their success are discussed
Jan 1, 1966
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RI 5096 Studies Of Size-Distribution Patterns And Breakage Processes For Metallurgical Cokes ? Introduction And Summary
By J. B. Gayle
In a modern blast furnace, production depends, to a large extent, on the rate at which the furnace gases can be forced through the charge. Since these gases must make their way through the voids betwe
Jan 1, 1954
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RI 3162 Motor Gasoline Survey, August, 1931 - Part I -Specification Data ? Introduction
By A. J. Kraemer
The twenty-fourth of a series of semiannual surveys pertaining to motor gasoline marketed in the United States was made by the Bureau of Mines in August, 1931, The first part of a report giving the re
Jan 1, 1932
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RI 5805 Development Of A 10,000-Ampere Cell For Electrorefining Titanium ? Summary
By F. P. Haver
The Federal Bureau of Mines developed a 10,000-ampere cell to determine the economic feasibility of producing high-purity electrolytic titanium from mill scrap or offgrade sponge. Operating variables
Jan 1, 1961
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RI 6428 X-Ray Diffraction and Optical Microscopic Data on Several Important Phases in the Binary Systems CaO3, CaO-SiO2 and Na2OAl3.(2)
By Sarkis G. Ampian
Published optical microscopic and X- ray diffraction characteristics of the following compounds are critically evaluated and compared with Bureau of Mines data : Tricalcium aluminate , calcium monoa l
Jan 1, 1964
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OFR-100(3)-82 Inventory Of Coal Waste Embankments, Surface And Underground Openings
By G. Ahnell
Throughout portions of four (4) heavily mined Appalachian states subdivided by the Mine Safety and Health Administration (MSHA) as: District 3 -Northern West Virginia and Maryland; District'" -So
Jan 1, 1982
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RI 8131 Production of Blister Copper by Electric Furnace Smelting of Dead-Burned Copper Sulfide Concentrates
By D. L. Paulson
The Bureau of Mines is investigating pyrometallurgical and chemical methods for extracting copper from sulfide ores under conditions that provide for control of gaseous and solid emissions. Under this
Jan 1, 1976
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RI 3882 Physical & Combustion Characteristics of Packaged Fuel Containing Anthracite Fines
By William Seymour, L. D. Schmidt, J. W. Myers, W. T. Reid
"This investigation was conducted by the Bureau of Mines as part of a program of the Solid Fuels Administration to encourage the utilization of anthracite fines, the objective being to determine the p
May 1, 1946