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OFR-15-73 Quick Opening Permissible Electrical Enclosures
By Jack Kadlecik
This final technical report describes the concept feasibility study, testing, design and development effort which went into. The quick opening enclosure access cover and flame path tolerance checking
Jan 1, 1972
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OFR-57-81 Dust Collector On Longwall Shearer
By Dennis J. Grigal
The goal of the program is to develop a dust collector system mounted on a ranging drum or arm shearer which will: 1) reduce the respirable dust level of the shearer operator by at least 75 percent; 2
Jan 1, 1980
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RI 8712 Alumina Miniplant Operations - Production of Misted Raw Kaolin Feed
By John L. Schaller
The Bureau of Mines, U.S. Department of the Interior, has investigated the extraction of alumina from domestic kaolin clay by leaching with boiling 26 wt-pct hydrochloric acid. Acid leaching of crushe
Jan 1, 1982
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OFR-60-83 Improved Ground Control Safety In The Stone, Sand And Gravel Industries
By Tuncel M. Yegulalp
The objective of this study was to categorize mining operations in the stone, and sand and gravel industries into areas of similar ground control functions and define initial factors affecting operati
Jan 1, 1981
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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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OFR-84(2)-76 A Master Environmental Control And Mine System Design Simulator For Underground Coal Mining - Volume II - Geology And Reserves Subsystem
By R. V. Ramani
This report is volume 2 of an eleven-volume final report for a Grant completed by The Pennsylvania State University for the Bureau of Mines to develop a dynamic general purpose computer simulation mod
Jan 1, 1974
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OFR-207(1)-83 Metal Organic And Inorganic Affinities In Strippable Fort Union Formation Coal - Volume 1
By F. E. Diebold
The methodology for describing the geochemistry of elements in a coal seam have been developed. This has been applied to the Rosebud Coal Seam, which is an economically important member of the subbitu
Jan 1, 1983
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RI 5695 International System For Classifying Brown Coals And Lignites And Its Application To American Coals ? Introduction And Summary
By W. H. Ode
Because trade increased among various nations after World War II, the Coal Committee of the Economic Commission for Europe established a Classification Working Party in 1949 to develop an Internationa
Jan 1, 1960
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Snapshot of Noise and Worker Exposures in Sand and Gravel Operations
By E. R. Spencer, E. R. Bauer
Previous studies and research efforts have shown that noise-induced hearing loss (NIHL) is a problem in the U.S. mining industry. In response, researchers at the National Institute for Occupational S
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RI 3181 Active List Of Permissible Explosives And Blasting Devices Approved Prior To June 30, 1932 - Permissible Explosives Tested Under Schedule 17B
An active list of permissible explosives was published in July, 1931, as part of United States Bureau of Mines Report of Investigations 313, under the title of "Active List of Permissible Explosives a
Jan 1, 1932
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RI 3889 A Study of Fault Determinations by Geophysical Methods in the Fluorspar Areas of Western Kentucky
By S. J. Hemberger, F. W. Lee
"This project constitutes the results of a geophysical field investigation undertaken in the mining areas in the vicinity of Marion, Crittenden County, Kentucky.Results were obtained at well-known min
Jun 1, 1946
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MLA 25-85 - Mineral Resources Of The Mt. Stirling Wilderness Study Area (BLM No. 050-0401), Nye And Clark Counties, Nevada
By Martin D. Conyac
A 1984 Bureau of Mines investigation identified ho mineral resources in the Wilderness Study Area (WSA). However, four prospects in the WSA contain anomalous amounts of copper and silver minerals; one
Jan 1, 1985
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RI 6817 High-Energy-Rate Extrusion Of Low-Density Tungsten Powder Billets
By Jack G. Croeni
The Bureau of Mines developed a method to extrude low-density tungsten powder billets into rods and sheet bar with high-energy-rate forming equipment. Billets were compacted and sintered in an atmosph
Jan 1, 1966
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RI 2442 The Use of Vapor-Tight Tankage in the Oil Fields
By Ludwig Schmidt
The policy of buying crude oil on a gravity basis , recently instituted by the major crude oil purchasing agencies in the Mid- Continent field , has caused a new and vital interest to be taken in the
Feb 1, 1923
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Control Of Dust In Hard-Rock Tunnels
In This Chapter [Finding the dust source Ventilation and dust collector malfunctions Upgrading the dust controls Design stage ventilation planning ] This chapter explains how to r
Jan 6, 2003
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MLA 64-87 - Mineral Resources Of The South Boise Yuba Study Area And Additions, Blaine, Camas, And Elmore Counties, Idaho ? Summary
By Francis E. Federspiel
In 1984 and 1985, at the request of the U.S. Forest Service, the U.S. Bureau of Mines examined the 87,720-acre South Boise Yuba study area (formerly known as RARE II Wilderness Recommended area I-4553
Jan 1, 1987
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IC 8601 Corrosion Resistance Of Metals In Hot Brines: A Literature Review
By Lloyd H. Banning
With the ever-increasing demand for energy in all forms, electrical energy generated from geothermal resources could become an important energy source in the next few decades. Geothermal fluids, which
Jan 1, 1973
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RI 8137 Geological Factors Affecting Methane in the Beckley Coalbed (2e2347d7-d43b-42eb-8bc8-a385afc5f7a0)
By J. T. Popp
This Bureau of Mines study reviews the geological factors that affect methane in the Beckley coalbed in southern West Virginia, including overburden, coalbed structure, type of and changes in litholog
Jan 1, 1976
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Minor Nonmetals ? Greensand (74481975-a706-424a-ad3c-6e935dc90045)
By Richard H. Singleton
Greensand, which is widely distributed in the Eastern United States, was produced in 1976 only by the Inversand Co., a subsidiary of Hungerford & Terry Inc., near Clayton, N. J. Production and sales i
Jan 1, 1978
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RI 7350 Dismantling A Typical Junk Automobile To Produce Quality Scrap
By Karl C. Dean
All components of 15 automobiles manufactured between 1954 and 1965 were analyzed, and it was determined that a representative junk automobile would have the following composition (all figures in poun
Jan 1, 1969