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RI 5320 Copper Mines And Prospects Adjacent To Landlocked Bay, Prince William Sound, Alaska ? SummaryBy Miro Mihelich
The mines and prospects in the vicinity of Landlocked Bay, 25 miles southwest of Valdez, Alaska (fig. 1), were examined, mapped, and sampled in July and August 1955 as part of a comprehensive investig
Jan 1, 1957
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RI 5749 Discharge Behavior In Vacuum Arc Melting ? SummaryBy F. W. Wood
A program of research was conducted by the Bureau of Mines to investigate anomalies in electrical-discharge behavior during consumable-electrode arc melting of titanium and to study the effects of the
Jan 1, 1961
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IC 8114 Safety Practices In Shaft Sinking And Tunneling: West Delaware Aqueduct ? Summary And IntroductionBy William Rachunis
This publication describes the construction of 43.64 miles of underground tunnel to be used as an aqueduct, known as the West Delaware aqueduct. In the past, the accident history of tunnel operations
Jan 1, 1962
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OFR-81-80 Mine Trailing Cables And Cable SplicesBy Robert H. King
An analysis of low-voltage shielded trailing cables is performed to develop a method for calculating the differences in operating costs between shielded and non-shielded cables. Two types of shield co
Jan 1, 1980
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RI 3436 Progress Reports - Metallurgical Division 29. Silver-Recovery Studies - Some Factors Affecting The Flotation Of Silver Miner ? IntroductionBy E. S. Leaver
Experiments dealing with the dissolution of silver by cyanide from various silver minerals were reported several yews ago.4/ This work showed that the silver in some silver minerals is completely and
Jan 1, 1939
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IC 6850 Petroleum Refineries, Including Cracking Plants, In The United States, January 1, 1935 ? Introductory SummaryBy G. R. Hopkins
Although many small refineries were dismantled in 1934 the total number of plants, including a few under construction, increased from 604 at the beginning of the year to a new high of 638 on January 1
Jan 1, 1935
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RI 8815 - Laboratory Tests for Selecting Wetting Agents for Coal Dust ControlBy H. William Zeller
The Bureau of Mines is conducting research to determine whether the use of chemical surfactants improves respirable coal dust control and is evaluating laboratory test criteria for selecting effective
Jan 1, 1983
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OFR-8-77 Effects Of Temperature And Humidity Variations On The Stability Of Coal Mine Roof Rocks - I. Introduction - A. Statement Of The ProblemBy Charles D. Haynes
Outside air for ventilating coal mines in Alabama varies considerably in both temperature and moisture content during the year. Alternate condensation and evaporation of the moisture on mine roofs may
Jan 1, 1975
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OFR-80(2)-77 Executive Summary - Research And Development Priorities Surface Mining Reclamation - Volume IIBy James J. Scott
Workshops were held in eight states during the period from December 12. 1975. through June 25, 1976, under U. S. Bureau of Mines Contract to the University of Missouri-Rolla. The workshops were design
Jan 1, 1976
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IC 8610 Summary Of Mining And Petroleum Laws Of The World (In Five Parts) 4. AfricaBy Northcutt Ely
This volume summarizes mining and petroleum legislation in 45 African jurisdictions. Within these jurisdictions, primary attention is given to requirements that must be met in each country for acquisi
Jan 1, 1974
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Variation in Mineral and Elemental Composition of Respirable Coal Mine Dusts by Worker Location and Coal SeamBy R. L. Grayson, T. Simonyi, R. A. Andrel
"The purpose or this paper is to disclose analytical, statistical, and observational results relating to mineralogy and trace elements in respirable dust samples collected from two different mines in
Mar 1, 1989
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RI 5731 Carbonizing Properties Of Wyoming Coals ? Summary And ConclusionsBy W. S. Landers
This report presents a study by the Federal Bureau of Mines of technical factors related to the production of special carbon and tar from selected Wyoming coals. Certain Wyoming high-volatile bitumino
Jan 1, 1961
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RI 9591 - Suppression of Longwall Respirable Dust Using Conventional Water Sprays Inoculated With Surfactants and PolymersBy H. W. Kilau
The U.S. Bureau of Mines is evaluating water spray additives for the purpose of improving respirable dust control during coal mining operations, with particular emphasis on the longwall shearer. Recen
Jan 1, 2010
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IC 9510 - A Performance Evaluation of Two Overhead Power Line Proximity Warning Devices ? Executive SummaryBy Gerald T. Homce
Accidental contact of overhead electrical power lines by mobile equipment is a leading cause of occupational fatalities in the United States, accounting for 20% of on-the-job electrocutions. Overhead
Jan 1, 2008
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IC 8130 Dust Control In Mining, Tunneling, And Quarrying In The United States, 1958 Through 1960 ? SummaryBy Floyd G. Anderson
This report reviews and summarizes information on prevention and suppression of dust in mining, tunneling, and quarrying published in the United States during the years 1958 through 1960. Unpublished
Jan 1, 1962
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IC 9360 Design Practices For Multiple-Seam Longwall MinesBy Gregory J. Chekan
The U.S. Bureau of Mines is investigating longwall panel and gate road layouts to increase coal recovery and reduce multiple-seam interactive problems. This report presents design practices for longwa
Jan 1, 1993
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RI 8829 Structure and Porosity of Electrodeposited Platinum Evaluation of Four Plating MethodsBy R. P. Walters, M. J. Lynch, D. R. Flinn
The Bureau of Mines evaluated tthhee feasibility of substituting platinum- coated metals for bulk platinum shapes as a means for conserving platinum . Platinum coatings were prepared using four differ
Jan 1, 1965
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Bulletin 54 Foundry-Cupola Gases and TemperaturesBy A. W. BELDEN
Among the investigations that the Bureau of Mines is conducting witha view to increasing efficiency in the utilization of fuels belonging to or for the use of the Government is an investigation of the
Jan 1, 1913
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IC 8698 Energy Consumption In Domestic Primary Copper ProductionBy Rodney D. Rosenkranz
Energy consumption in domes tic copper production has increased nearly 60 percent in the last 10 years, reaching approximately 175 trillion Btu in 1973. Energy required to produce 1 pound of copper ro
Jan 1, 1976
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IC 6329 Sulphur - IntroductionBy Robert H. Ridgway
This circular outlines salient facts regarding the sulphur industry of the United States and the world. It is founded chiefly upon published information available in the literature of the subject. The
Jan 1, 1930