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MLA 78-86 - Mineral Resources Of The Eighteen Mile Study Area, Lemhi County, Idaho ? SummaryBy Andrew M. Leszcykowski
In 1985, at the request of the Bureau of Land Management, personnel from the U.S. Bureau of Mines examined 18,700 acres of the 24,922-acre Eighteen Mile Wilderness Study Area to evaluate mineral resou
Jan 1, 1986
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OFR-44-74 Coal Cleaning Plant Noise And Its ControlBy E. E. Ungar
Criteria applicable to noise in coal cleaning plants are presented, and the generally applicable noise control principles and approaches are discussed. The operating characteristics and equipment of c
Jan 1, 1974
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Water Spray Cooler For Ventilation Air Tube ? ObjectiveTo provide cooler air to miners working in hot areas of mines, particularly new deep hardrock mines. Approach Air supplied to hot working areas of mines is cooled by passing it through a series o
Jan 1, 1979
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RI 3502 Time Study Analyses Progress Report No. 3 - Quarry Drilling ? IntroductionBy J. R. Thoenen
In the summer of 1937 the authors began a series of time studies of the various processes employed in' the production of crashed stone. These studies, made at quarries situated in the eastern and
Jan 1, 1940
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IC 8129 Open Pit Operations At The Tripp Pit, Consolidated Coppermines Corp., Kimberly, Nev. ? Summary And IntroductionBy M. Clair Smith
This report is one of a series being prepared by the Bureau of Mines on exploration, development, mining methods, and costs at various open-pit mines in the United States. These reports have been prep
Jan 1, 1962
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OFR-109-85 Advancement Of Cab And Canopy Design And Use In Coal MinesBy W. W. Aljoe
The use of protective canopies can result in canopy roofing and/or serious restrictions to operator comfort and vision. To document this experience, BCR conducted a field study of cab and canopy desig
Jan 1, 1981
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RI 3346 Analyses Of Crude Oils From Some Fields Of Michigan ? IntroductionBy E. L. Garton
Michigan is becoming one of the important oil-producing States of the country. The amount of crude oil produced within its boundaries has increased from only 4,000 barrels in 19253/ to nearly 16 milli
Jan 1, 1937
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RI 3508 Diesel Engines Underground - 1. - Composition Of Exhaust Gas From Engines In Proper Mechanical Condition ? IntroductionBy John C. Holtz
Interest in the possibility of using Diesel6/ engines for haulage power in mining and tunneling is increasing in the United States, owning largely to the reported successful use of Diesel locomotives
Jan 1, 1940
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RI 9225 - Causes and Control of Coal Mine BumpsBy K. Y. Haramy
Coal mine bumps involve the violent, rapid failure of coal and rock around a mine excavation. Deep coal mines with strong roof and floor rocks and high-stress conditions frequently experience face and
Jan 1, 1988
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RI 3508 Diesel Engines Underground - 1. -Composition Of Exhaust Gas From Engines In Proper Mechanical Condition ? Introduction (e81faf7b-b812-45e7-87be-ecdd9889c4a2)By John C. Holtz
Interest in the possibility of using Diesel6/ engines for haulage power in mining and tunneling is increasing in the United States, owing largely to the reported successful use of Diesel locomotives i
Jan 1, 1940
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RI 3018 Gravity Concentration on Certain Florida Phosphatic SandsBy H. M. Lawrence
"Florida, the State that supplied 82 per cent of the phosphate rock sold in the United. States in 19284, has two producing areas - the hard-rock and the land pebble districts. Production of the hard-r
Jul 1, 1930
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IC 8556 Injury Experience In Coal Mining, 1968By Forrest T. Moyer
The safety record of the coal-mining industry in 1968 worsened appreciably .in fatality experience but was slightly better in nonfatal-injury experience. Work fatalities in 1968 totaled 311 and occurr
Jan 1, 1972
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RI 8297 Mechanical Properties of Cores Obtained From the Unleached Saline Zone, Piceance Creek Basin, Rio Blanco County, Colo.By Frank G. Horino
Drill cores from 18 exploratory holes that were drilled into the unleached saline beds were tested for mechanical properties by the Bureau of Mines. Test cores were primarily selected from zones L4B,
Jan 1, 1978
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OFR-23(2)-79 Study Of Methods To Improve Pillar Extraction Practices In Underground Coal Mines - Volume II - Haulage Practices In Retreat Mining ? I. IntroductionThe following pages discuss the objectives, the background, and scope of work of an industrial engineering analysis of far-,n haulage systems in underground retreat coal mining. This study ran concurr
Jan 1, 1975
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RI 7036 Molten-Salt Electrorefining Vanadium ScrapBy K. P. V. Lei
The Bureau of Mines investigated molten-salt electrorefining as a practical method for reclaiming vanadium from vanadium scrap. An electrolytic process utilizing a KC1-LiC1-VC12 electrolyte at 615° C
Jan 1, 1967
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RI 6086 Analyses Of Tipple And Delivered Samples Of Coal (Collected During The Fiscal Year 1961) ? IntroductionBy S. J. Aresco
The Bureau of Mines has been active in promoting the purchase of coal for Government use under specifications that define the requirements in terms of heating value of the coal, expressed in British t
Jan 1, 1962
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Improved Noise Measurement - The Objective:To be able to continuously monitor the noise to which underground workers are exposed as a better way to help prevent hearing damage. The Approach: The Bureau of Mines has developed a Time-Res
Jan 1, 1975
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IC 8223 Titanium In The Southeastern United States (f7de1f6f-fed3-463c-837d-99da0bc279a1)By Fred P. Giese
Southeastern reserves of titanium ores are large, widespread, and ample for anticipated demand. The leading titanium industries are mining and beneficiating sand deposits, principally in Florida, and
Jan 1, 1964
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RI 7734 An Automatic Data Acquisition System For Underground MeasurementsBy J. R. McVey
A 10-channel automatic data acquisition system has been designed and environmentally packaged for use with underground strain-gage applications and associated instruments. The system uses commercially
Jan 1, 1973
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IC 8112 Industrial Silica Deposits Of The Pacific Northwest ? SummaryBy George J. Carter
Data obtained from field and laboratory examinations were used by the Bureau of Mines to evaluate 82 silica deposits in the Pacific Northwest. A total of 94 field samples was taken from 64 deposits, a
Jan 1, 1962