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OFR-121-77 Longwall Ignition Suppression
By Ronald D. Rothchild
This report describes the results of a study of longwall ignition hazards and specific suppression systems to minimize each of the major hazards. The major ignition hazards were identified by conducti
Jan 1, 1976
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OFR-22-80 Evaluation Of Proximity Warning Devices
By J. E. Hipp
Three electrostatic field sensing proximity warning devices were tested using full-scale cranes and power line systems, a scaled model facility, environmental testing facilities, and theoretical/numer
Jan 1, 1980
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RI 6552 Some generalized probability distributionss
By Robert M. Becker
This report (the second in a series of five) presents the mathematical development in extending the theory of sample reliability from a sample consisting of a fixed number of items to a sample consist
Jan 1, 1964
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OFR-17-83 A Ventilation Study With Pressure Cycling In A Kerr-McGee Mine At Ambrosia Lake, NM
By J. E. Cleveland
The major health concern for uranium miners is the release of radon gas and the resultant ingrowth of the short lived daughters in the mine atmosphere. Present methods of control are the utilization o
Jan 1, 1982
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IC 9329 Utilizing Mechanical Linear Transducers For The Determination Of A Mining Machine's Position And Heading: Underground Testing
By Christopher C. Jobes
Computer-assisted control of a mining machine can place the operator in a safe, remote location. A guidance system aids remote positioning of a mining machine by determining its position and heading.
Jan 1, 1992
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Mineral Commodity Summaries 1984 - An Up-To-Date Summary Of 87 Nonfuel Mineral Commodities ? Aluminum
1. Domestic Production and Use: In 1983, 12 companies operated 27 primary aluminum reduction plants, with 4 firms accounting for 65% of production. Washington, Oregon, and Montana accounted for 35% of
Jan 1, 1984
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RI 4796 Oil Shale Operations in New South Wales, Australia
By A. J. Kraemer, H. M. Thorne
The following account of oil-shale operations in Australia is based upon infor- mation obtained by the authors while visiting Australia from September 15 to October 7, 1947, supplemented by published
Jul 1, 1951
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IC 6217 Bureau of Mines Instruction in First Aid and Value of 100-Percent First-Aid Training to Em· ployees of Mining and Oil Companies
By A. L. Murray
First -aid training as an adjunct to safety is receiving more wide spread recognition in the industries every year . Moreover , the adoption of a program for giving firstaid training to practically al
Jan 1, 1930
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IC 7830 Bibliography Of Zirconium - Supplement To Information Circular 7771 ? Introduction
By Eleanor Abshire
This bibliography is the second in a series that covers the current technical literature relating to the metallurgy of zirconium. The rapid advance in zirconium technology makes it mandatory that abst
Jan 1, 1958
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RI 3816 Effects of Boron in Steel
By A. J. Williams, R. B. Corbett
"INTRODUCTION This investigation was undertaken to obtain information concerning the effects of boron in steel and its method of addition, so that boron, which is readily obtainable domestically, may
Jun 1, 1945
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The 1986 World Economy, The 1987 National Economy Through May, And Performance Of The U.S. Nonfuel Mineral Industry - World Economy In 1986
By Keith L. Harris
Recent data indicate a marginal decline in overall growth in world economic output from 3.1% in 1985 to 2.9% in 1986 (table 1),2, 3 Many nations experienced slower economic growth because of the huge
Jan 1, 1987
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RI 4999 Metallurgical Investigations Of Southeastern Missouri Cobalt-Nickel Resources ? Summary
By H. Kenworthy
Sulfide-ore concentrates containing cobalt, nickel, copper, lead, and iron from the operations of the National Lead Co. at. Fredericktown, Mo., were treated successfully on a laboratory scale to recov
Jan 1, 1953
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OFR-33(2)-79 Application Of A Total System Surface Mine Simulator To Coal Stripping - Volume II - User's Manual For A Surface Mining - Materials Handling Simulator
By C. B. Manula
This report is mainly concerned with the modification and development of a users manual for the Open-Pit Materials Handling Simulator (OPMHS) developed at Penn State. Model Modifications included the
Jan 1, 1976
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IC 7315 A Pattern For Western Steel Production ? Introduction
By H. Foster Bain
The war has brought about many changes in the Western States, and some have deep pr sent or potent al economic significance. The West has been feeling severe growing pains for a number of years. Espec
Jan 1, 1945
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OFR-127-80 Improved Light-Scattering Dust Monitor
By Byron S. Kutscher
This report summarizes the program to develop and construct an improved light-scattering dust monitor (ILSDM). This improved light-scattering dust monitor, which operates on the forward light scatteri
Jan 1, 1980
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RI 6232 An Introduction To Statistical Design Of Experiments In Metallurgical Research ? Summary
By S. J. Hussey
This Bureau of Mines report presents a discussion of the statistical approach to the design of experiments and indicates, by concrete examples, how and when statistical design is essential for obtaini
Jan 1, 1963
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Coal-Mine Accidents In The United States 1939 - Introduction
By W. W. Adams
Coal mining in the United States established a good safety record in 1939. The death and injury rates per man-hour of exposure to risk were favorable compared with most previous years, and the number
Jan 1, 1942
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IC 7130 Testing Respiratory Protective Equipment For Approval ? Introduction
By H. H. Schrenk
The purpose of respiratory protective equipment is to prevent the inhalation of harmful or objectionable atmospheres. Although constituents or contaminants that may render an atmosphere irrespirable o
Jan 1, 1940
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OFR-30-86 Compact Service Hoist System For Underground Metal And Nonmetal Mines
By David J. Hoadley
This report describes the development and limited testing of a semi-automatic, raise climber, Compact Service Hoist System designed for stope access in underground metal and nonmetal mines. Demonstrat
Jan 1, 1985
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IC 8417 Helium Symposia Proceedings In 1968 - A Hundred Years Of Helium - Helium Applications Symposium, Washington, D.C., October 23-24, 1968; Helium Centennial Symposium, Atlantic City, N.J., September 11, 1968.
Applications of helium in aerostatics, cryogenics, space, and undersea work are described in papers from the Helium Applications Symposium. Specific subjects include investigations of X-ray sources by
Jan 1, 1969