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Utilization And Efficiency In Underground Coal Mine Electrical SystemsBy Lloyd A. Morley
To reduce safety and production problems, it is essential that the electrical operating characteristics of coal mining equipment and their electrical subsystems be clearly understood. The Bureau of Mi
Jan 1, 1975
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Long Drill For Coal Probing And Pillar Removal - ObjectiveProvide a machine for economically drilling probe holes in coal mines (required where there's a possibility of unmapped, abandoned workings) to check for possible water flood or gas hazards ahead
Jan 1, 1981
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IC 9076 Coal Mine Roof Instability: Categories And CausesBy Noel N. Moebs
Coal mine roof failure is categorized according to character, trend, or pattern of occurrence. Two principal categories of failure are proposed--geology related and stress related. Geology-related fai
Jan 1, 1986
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RI 7281 Entrainment Drying And Carbonization Of Wood WasteBy Charles C. Boley
The Bureau of Mines dried and carbonized two wood wastes, one softwood (redwood) and one hardwood (oak), using continuous, vertical entrainment techniques previously developed for use with coal. It wa
Jan 1, 1969
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RI 7427 Design And Construction Of A Radiation ProbeBy C. H. Schwartz
A thermal radiation probe was constructed and tested in pulverized-coal-fired furnaces. A rotatable sensing head on the side of a water-cooled probe permitted measurement of radiant flux within a 7.20
Jan 1, 1970
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RI 8210 Melting and Casting of Raney Nickel AlloyBy Stephen A. Hare, O&apos
The melting, casting, and welding of the Raney nickel alloy (42 pct Ni-58 pct A1), a methanation catalyst useful in coal gasification, were investigated. Melting was done in graphite crucibles by heat
Jan 1, 1977
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RI 7282 Entrainment Drying And Carbonization Of Wood WasteBy Charles C. Boley
The Bureau of Mines dried and carbonized two wood wastes, one softwood (redwood) and one hardwood (oak), using continuous, vertical entrainment techniques previously developed for use with coal. It wa
Jan 1, 1969
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Experimental Comparison Of Buried And Elevated ELF Transmitting AntennasBy J. R. Katan, J. R. Ball, Peter R. Bannister, F. J. Williams
During the last week in March and the first week in April, 1973, the Naval Underwater Systems Center measured the 76 Hz magnetic field strength (in Wisconsin and Texas) produced by both the elevated a
Jan 1, 1973
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IC 7994 Gasfreeing Of Cargo Tanks ? Summary And IntroductionBy Michael G. Zabetakis
The process of ?gasfreeing? has been defined3/ as "* * * the removal of oil and vapors from tanks, pipelines, and compartments to render such spaces safe for the intended work," Generally, part or all
Jan 1, 1961
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Seismic System For Detecting And Locating Trapped Miners ? ObjectiveProvide a method of detecting and locating miners trapped underground following a mine disaster. Approach Develop a surface deployed system which senses the vibrations caused by a trapped miner p
Jan 1, 1981
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Reduce Dust Exposure During Bag Filling And Stacking - ObjectiveDetermine the dust reduction capabilities of various bag valves available to the minerals processing industry. The Problem Many different types of ground mineral products are packaged into 50-
Jan 1, 1986
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Combined Short- And Long-Duration Oxygen Self-Rescuer ? ObjectiveProvide respiratory protection for escape in a toxic or oxygen-deficient atmosphere with a device small and light enough to be belt-worn. Approach Combine a 10-minute, belt-worn respirator with a
Jan 1, 1981
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Surface Of Underground Metal/Nonmetal And Stone Mine FiresBy Maria I. De Rosa
Table 10 and figure 4 show the number of fires and fire injuries occurring at the surface of underground metal/nonmetal and stone mines by state during 1990-2001. Table 10 also shows the injury risk r
Jan 1, 2004
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Seated Human Response To Simple And Complex Impacts - IntroductionBy J. Ankrum, T. Xia1, D. Wilder, K. Spratt
The human lumbar spine is inherently an unstable structure and requires sophisticated neuromuscular control to maintain its stability and for performing physical tasks. As a consequence, it is import
Jan 6, 2006
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Appendix B.-Example of Mfire Data File and OutputBy Rudolf E. Greuer, Linneas W. Laage, Xinton Chang
INPUT FORMAT INSTRUCTION FILE FOR PROGRAM MFIRE GENERAL RULES FOR DATA INPUT: $THERE IS NO NEED TO DISTINGUISH INTERGER AND REAL NUMBERS. $ $ SYMBOLS FOR NUMERICAL INPUT INCLUDE THE FOLLOWING $ $
Jan 1, 1990
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Hazard Evaluation and Technical Assistance Report HETA 98-0020By Lon Santis, Scott Deitchman, John A. Decker
This report describes three cases of carbon monoxide (CO) poisoning in a manhole, including one fatality, from CO migrating through soil after nearby use of explosives. A municipal sewer project invol
Oct 30, 1997
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Improved Underground Rerailing Methods Enhance Safety and Efficiency - ObjectiveIncrease the safety of underground mine workers by minimizing hazards associated with rerailing mine cars after derailment. Background and Approach A serious operational problem in underground m
Jan 1, 1986
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Bulletin 178-C Petroleum Investigations and Production of HeliumBy Van H. Manning
PETROLEUM INVESTIGATIONS. The work of the petroleum division of the Bureau of Mines during the period of the war was under the supervision of Chester Naramore, chief petroleum technologist. In its pet
Jun 1, 1919
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RI 8485 Structure Response and Damage Produced by AirblastBy Mark S. Stagg, Virgil J. Stachura, John W. Kopp, David E. Siskind
The Bureau of Mines studied airblast from surface mining to assess its damage and annoyance potential, and to determine safe levels and appropriate measurement techniques. Research results obtained fr
Jan 1, 1965
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Bulletin 62 National Mine Rescue and First Aid ConferenceBy Herbert M. Wilson
The act (36 Stat., 369) that established the Bureau of Mines in the Department of the Interior defined as part of the bureau's province and duty the making of "diligent investigation of the methods of
Jan 1, 1913