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RI 8942 - Application of Cast-On Ferrochrome-Based Hard Surfacings to Polystyrene Pattern Castings
By J. S. Hansen
To advance technology that can conserve critical materials, the Bureau of Mines investigated a cast-on hard-surfacing that wear resistance and confines alloy additions to wear-prone surfaces. Wear-res
Jan 1, 1985
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IC 6792 Trends In Practice And Costs Of Concentrating Copper Ores - Introduction
By T. G. Chapman
This paper has been abstracted from a forthcoming Bureau of Mines bulletin on the concentration of copper ores in North America. GENERAL DEVELOPMENTS IN CONCENTRATING COPPER ORES FROM 1912 TO 1932
Jan 1, 1934
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RI 6996 Fracturing A Deposit With Nuclear Explosives And Recovering Copper By The In-Situ Leaching Method
By William R. Hardwick
Present information indicates that a copper deposit can be safely fractured with a nuclear explosive and the copper successfully recovered by the in-situ leaching method. The process is not yet at the
Jan 1, 1967
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RI 4170 Lead, Zinc, Silver. Copper, Bismuth Deposits, South Hecla Mine, Alta. Salt Lake County, Utah
By John I. Kasteler, John H. Hild
"INTRODUCTION The South Hecla mine, one of the principal mines of the Alta United Mines Co., is situated at Alta in thee Little Cottonwood mining district, about 30 miles southeasterly from Salt Lake
Jan 1, 1948
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Subject Index to Bureau of Mines Publications from July 1, 1990 to January 1, 1960 - Subject Index A-C
"A bed, British Columbia, Canada, coal, carbonizingproperties B 510Pa., coal, washing characteristics RI 4941A' bed, Pa., coal, washing characteristics RI 4834"
Jan 1, 1960
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Government Actions And The Mineral Industry (258f39ae-c1a2-4cc1-9367-34f38d87beb5)
Duty on Lead Reduced. -On December 28, the President signed H.R. 5047 which reduces the duty on unwrought lead from 3.5% ad valorem to 3% ad valorem, with a floor level of 1.0625 cents per pound, effe
Jan 1, 1980
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Bulletin 185 Pennsylvania Mining Statutes Annotated
By J. W. Thompson
That the governor is hereby authorized to appoint a commission of seven persons, to be known as the industrial accidents commission-two of whom shall be employers of labor, two of whom shall be employ
Jan 1, 1920
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State Compensatory Provisions For Occupational Diseases - Introduction
Researchers, medical organizations, statisticians, and others often use data on the nature and rate of occurrence of occupational diseases in directing their efforts and plans. Very often this informa
Jan 1, 1967
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OFR-21-85 Conservation And Substitution Technology For Critical Metals In Bearings And Related Components For Industrial Equipment And Opportunities For Improved Bearing Performance - Introduction
By Allen G. Gray
It's not news to you that the United States is highly vulnerable to potential problems in supply of critical and strategic metals, and that these metals - chromium, for example - are employed in
Jan 1, 1984
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OFR-88-80 Phase 1: Research On The Hydrology And Water Quality Of Watersheds Subjected To Surface Mining
Five watersheds, ranging in size from 29 to 49 acres, were selected in East-Central Ohio to investigate the hydrologic and water quality conditions occurring before, during, and after surface mining.
Jan 1, 1978
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OFR-9(1)-72 Coal Mine Rescue And Survival System - Volume I - Survival Subsystem - Introduction - Contract Information
This volume constitutes the Survival Subsystem portion of the final report for the Coal Mine Rescue and Survival System (CMR&SS) program, which was conducted by the Westinghouse Electric Corporation u
Jan 1, 1971
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RI 3761 History of Water Flooding of Oil Sands in Kansas
By Peter Grandone
"INTRODUCTION The injection of water into partly depleted-oil-bearing formations as a means of supplying additional energy to flow oil wells now is recognized by the petroleum industry as an effective
Jul 1, 1944
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OFR-153-77 Technical And Economic Feasibility Surface Mining Coal Deposits North Slope Of Alaska
This Kaiser Engineers report on the feasibility of surface mining on the North Slope of Alaska has considered the quantity and quality of the North Slope deposits with attention paid to the economic,
Jan 1, 1977
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Coal-Mine Accidents In The United States, 1940 - Introduction
By W. W. Adams
With production of coal per man-hour of work at a higher level than ever before, the coal-mining industry of the United States established a near-record in lowering the accident rate of nonfatal injur
Jan 1, 1942
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RI 2718 Diatomaceous Earth
By C. W., Davie
"DEFINITIONDiatomaceous earth consists almost entirely of the silicious remains of minute flowerless aquatic plants known as diatoms. The name diatomaceous earth, therefore, is to be preferred to othe
Nov 1, 1925
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Hydrogenation Of Coal In The Batch Autoclave
By C. O. Hawk
A PART of the Bureau of Mines effort to improve the conversion of coal to liquid fuels, batch autoclave tests were made on the hydrogenation of bituminous coal by a dry method, which featured charging
Jan 1, 1965
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Neural Network Technology For Strata Strength Characterization
By Walter K. Utt
The process of drilling and bolting the roof is currently one of the most dangerous jobs in underground mining, resulting in about 1,000 accidents with injuries each year in the United States. To incr
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International Land Reclamation And Mine Drainage Conference And Third International Conference On The Abatement Of Acidic Drainage - Volume 3 Of 4: Reclamation And Revegetation
Mine drainage and mine reclamation are topics of major interest to the mining industry, federal and local governments, and the general public. This publication and its companion three volumes are the
Jan 1, 1994
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Subject Index to Bureau of Mines Publications from July 1, 1990 to January 1, 1960 - Subject Index M-P
"M bed, Matanuska valley, Alaska, coal carbonizingproperties B 510M spectral lines, low-energy, study RI 5538Mab shaft, Leadvile district, Colo., investigation RI .1518Maberry process, for aluminum c
Jan 1, 1960
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IC 6186 Mining Methods and Costs, Alaska-Juneau Gold Mining Co., Juneau, Alaska
By P. R. Bradley
This paper is one of a series , dealing with mining methods and costs , sponsored and published by the U. S. Bureau of Mines . Papers of this series are written by engineers and executives of mining c
Oct 1, 1929