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OFR-103-80 Mine Wide Test Of The WVU Monitoring Concept
By R. S. Nutter
The results of designing, constructing, and laboratory testing of a modular, distributed, microprocessor-based mine monitoring and control system are presented. A standard computer communications prot
Jan 1, 1980
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Statistical Summary (9e46f066-62ab-4b74-a80e-0a46ceea5bf4)
By Rose L. Ballard
This chapter summarizes data on crude nonfuel mineral production for the United States, its island possessions, and the Commonwealth of Puerto Rico. Included also are the tables that show the principa
Jan 1, 1983
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RI 3501 Annual Report Of The Petroleum And Natural-Gas Division Fiscal Year 1939 ? Foreword
By R. A. Cattell
A technologic group such as the Petroleum and Natural Gas Division of the Bureau of Mines, which conducts research on many of the complicated and frequently interrelated problems of extracting crude o
Jan 1, 1940
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IC 7734 Administration Of The Federal Coal-Mine Safety Act, Calendar Year 1954 - Introduction
By James Westfield
This report covers the calendar year 1954 and has been prepared and submitted to the Congress of the United States in accordance with the provisions of Sec. 106(a) and Sec. 2l2(c) of the Federal Coal-
Jan 1, 1956
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IC 9165 Fire Doors For Noncoal Mines
By Kenneth L. Bickel
During an underground mine fire, the importance of controlling the spread of smoke and toxic gases with suitable ventilation structures has been proven. However, under certain conditions, control of t
Jan 1, 1987
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OFR-152(2)-83 Noise Attenuating Properties Of Earmuffs Worn By Miners - Volume 2: Development Of A Laboratory Procedure For The Physical Measurement Of Earmuff Attenuation
By Kenneth C. Stewart
The overall purpose of this study was to develop and evaluate, in the laboratory, instrumentation and procedures which might allow for the use of physical measurements of earmuff attenuation which wou
Jan 1, 1980
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RI 3501 Annual Report Of The Petroleum And Natural-Gas Division Fiscal Year 1939 ? Foreword (92b2b27e-67c6-4c2c-b430-e657349f5673)
By R. A. Cattell
A technologic group such as the Petroleum and Natural Gas Division of the Bureau f Mines, which conducts research on many of the complicated and frequently interrelated problems f extracting crude oil
Jan 1, 1940
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RI 3336 Beneficiation Of Spodumene By Decrepitation ? Introduction (132e4d98-bf25-4fae-a900-bb38ff5b3820)
By Foster Fraas
One of the lithium minerals most widespread in the earth's surface is spodumene (Li20-A1203-4Si02), a lithium aluminium silicate. For some time, deposits of this mineral were known to exist in th
Jan 1, 1937
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IC 7789 State Regulations Pertaining To The Use Of Internal-Combustion Engines Underground ? Introduction
By J. C. Holtz
Since 1937 the Bureau of Mines has conducted investigations to provide the technical information necessary to guide the safe use of diesel engines underground in the United States. Coincident with the
Jan 1, 1957
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RI 3347 The Importance Of Adequate Voltage For Distribution Systems In Coal Mines ? Introduction (69763951-5b49-4156-8d0c-4d7aaa93925d)
By E. J. Gleim
The importance of "good voltage,? especially for direct-current systems in coal mines, is not always fully appreciated. From the practical 4 aspect there are three viewpoints from which low voltage ma
Jan 1, 1937
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Application Of Fixed-Bed Gasification To Low-Rank Coals - Objective
Demonstrate the technical feasibility of using nontraditional, low-rank, coal-based fuels and new coal-based technologies for mineral and metallurgical applications. Approach A cooperative resea
Jan 1, 1987
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IC 6039 Effective Rock Dusting of Coal Mines
By George S. Rice
"""To prevent the propagation of mine explosions, the Bureau of Mines, Department of Commerce, recommends rock-dusting all coal mines, except anthracite mines, in every part, whether in damp or dry co
Jun 1, 1927
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IC 7010 Advanced Mine Rescue Training Course Of The Bureau Of Mines ? Introduction
By J. J. Forbes
The activities of the Bureau of Mines include the development and testing of self-contained oxygen breathing apparatus and other devices for respiratory protection, the development and tasting of devi
Jan 1, 1938
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OFR-110(2)-84 Relationship Of Underground Diesel Engine Maintenance To Emissions - Volume II
By Ronald Branstetter
Gaseous and particulate exhaust emissions from 20 diesel engines in service at five underground mines were measured with high accuracy instrumentation. The engines that were tested were checked for fa
Jan 1, 1983
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OFR-132-77 The Application Of Advanced Mine Air Monitoring Techniques To Mines Using Diesel Powered Equipment
By John H. Johnson
A study of mine air quality was conducted using the latest advanced continuous monitoring instruments. An overview of the various interacting variables in the mine that affect air quality is presented
Jan 1, 1977
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IC 8170 Injury Experience In The Nonmetal Industries (Except Stone And Coal), 1959 - Introduction And Summary (06eb472c-2eb8-4cf1-be75-ec46c2f019ec)
By John C. Machisak
INJURY and employment figures for nonmetal mines and mills in 1959 are presented in this publication. Data for nonmetal mines are presented separately from those for nonmetal mills. The Bureau of Mi
Jan 1, 1963
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IC 8174 Mining Methods And Costs, Deep Creek Zinc-Lead Mine, Goldfield Consolidated Mines Co., Stevens County, Wash.
By Galen G. Waddell
The Deep Creek zinc and lead mine afforded an excellent example of a relatively small underground mine operation that approached the low mining costs of large, highly mechanized mines, An open stope m
Jan 1, 1963
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Mechanized Excavability Rating For Hard-Rock Mining
By Z. T. Bieniawski, Benjamín Celada
After emphasizing the importance of quantitative rock mass classifications in mining, originally directed to selection of rock support measures, but subsequently to estimates of rock mass properties s
Jan 5, 2007
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RI 5494 Electrorefining Titanium, Using An Internally Heated Cell ? Summary
By O. Q. Leone
Excellent metal quality, with lower power requirement, is attained in electrorefining titanium by using internal heating of the fused-salt bath. An internal heater provides more effective heat utiliza
Jan 1, 1959
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RI 3348 Cooperative Fuel Research Motor-Gasoline Survey, Winter 1936-37 ? Introduction (1ce0efef-1a81-4ca4-b865-c45c66bfa4d5)
This is the third in a series of reports on properties of commercial motor fuels, made in accordance with a cooperative agreement between the Cooperative Fuel Research (C. F. R.) Committee and the Bur
Jan 1, 1937