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RI 3208 Review Of Fatalities In The California Petroleum Industry During The Calendar Year 1932By R. L. Marek
The number of persons fatally injured in the California petroleum industry in 1932 was 24, a decrease of 6, or 20 percent from the number killed in 1931. The decrease in the number of fatalities occur
Jan 1, 1933
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IC 6707 Methods And Costs Of Developing And Equipping The Ashley Gold Mine, Matachewan Gold District, Ontario - IntroductionBy W. H. Emens
[This circular is one of a series dealing with tie development and equip¬ment of small and medium size mines, and with the costs of such work prior to productive operation. The preparation and publica
Jan 1, 1933
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OFR-29-87 Sensitive Ground-Fault Protection For Mines - Phase II - Direct-Current UtilizationBy J. L. Kohler
The final report for Phase II of Bureau of Hines Contract J0134025 concerns the research and development of sensitive ground-fault relays for dc utilization systems in mining. Sensitive relaying emplo
Jan 1, 1986
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Accidents From Hoisting And Haulage At Metal And Nonmetallic Mines - Metal- And Nonmetallic-Mine Accident-Prevention Course - Section 3 - Purpose And ScopeThe first metal-mine accident-prevention course was prepared and published in 1942-45 as a series of seven miners' circulars (Nos. 51-57). The scope of the course has been broadened, revised, and
Jan 1, 1955
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IC 8508 Gulf Coast Export-Import Of Mineral CommoditiesBy Frank B. Fulkerson
This is the second of two interrelated studies of waterborne transportation. The first study discussed transportation of mineral commodities on the inland waterways of the South-Central States.2 Toget
Jan 1, 1971
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RI 5351 Utilization Of South Arcot, India, Lignite ? Summary And ConclusionsBy V. F. Parry
The object of this report is to present certain pertinent data on the physical and chemical properties of South Arcot lignite and to present the results of several special tests to show how the raw li
Jan 1, 1957
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RI 3298 Charts For Determining The Performance Of Centrifugal Fans ? IntroductionBy G. E. McElroy
Tae purpose of this paper is to present types of charts adapted to aid in the graphic solution of fan-performance problems of selection and operation, and to urge the adoption of similar charts by the
Jan 1, 1936
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RI 3298 Charts For Determining The Performance Of Centrifugal Fans ? Introduction (a74a926d-a792-470d-b83e-292b4152392b)By G. E. McElroy
[The purpose of this paper is to present type: of charts adapted to aid in the graphic solution of fan-performance problems of selection and operation, and to urge the adoption of similar charts by th
Jan 1, 1936
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OFR-46-85 Mine Power System Safety And Reliability Improvement - Part IBy Herman W. Hill
This report summarizes research into the root causes of failures in mine power systems which impact safety and reliability. Abnormally low fault currents, due to arcing faults, self-excited systems, a
Jan 1, 1981
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IC 8454 A Computer Program For The Stereographic Analysis Of Coal Fractures And CleatsBy P. W. Jeran
The Stereonet Analysis Program (SNAP) is a mathematics tool which, by means of a computer, reproduces mathematically the manual techniques of pre- paring stereograms. This computer program was develop
Jan 1, 1970
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RI 4515 Titanium Minerals In Central And Northeastern FloridaBy J. R. Thoenen
Occurrences of titanium, zircon, and other heavy minerals are widespread in Florida. Deposits concentrated as "heavy sands" by wave and wind action have been mined an or near Atlantic coastal beaches
Jan 1, 1949
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OFR-47-82 Reliability And Effectiveness Analysis Of The USBM Electromagnetic Location System For Coal MinesBy R. F. Kehrman
Voice Frequency (VF) electromagnetic trapped miner location devices were tested for reliability and effectiveness in 93 coal mines. Tests included uplink pulsed CW, downlink pulsed OW and downlink voi
Jan 1, 1978
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OFR-122-76 The Illumination Of The Greenwich Collieries LongwallThis report describes the development, installation and performance of a lonpwall illumination system. The longwall illumination system was installed at the Greenwich Collieries 112, Cockport, Pa.
Jan 1, 1976
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RI 5694 Shallow Lead Diggings, Grant And Lafayette Counties, Wis. ? Summary And IntroductionBy W. A. Grosh
Records show that much of the lead produced in the Upper Mississippi Valley lead-zinc field was taken from natural openings along crevice systems at shallow horizons or at the surface. During the
Jan 1, 1960
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IC 7870 Mining Methods And Costs At The Holden Mine, Chelan Division, Howe Sound Co., Chelan County, Wash. ? IntroductionBy John R. McWilliams
This is one of a series of reports being published by the Bureau of Mines on mining methods and costs at various mines throughout the United States. Including the Holden mine in this series is par
Jan 1, 1958
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RI 2553 Gaseous Content Of Ground Waters As An Aid To The Petroleum And Natural Gas ProspectorBy E. P. Buxton, W. P. Yant, G. W. Jones
"Introduction. The data obtained in recent research work by the Bureau of Mines show that the analysis of the gases dissolved in underground waters may be used by the prospector or geologist as an add
Nov 1, 1923
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Studies On The Control Of Respirable Coal Mine Dust By VentilationBy D. S. Kingery
Experiments initiated by the Bureau of Mines on August 26. 1969, and recent work of others, have demonstrated the effectiveness of ventilation for controlling concentrations of respirable coal mine du
Jan 1, 1969
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RI 6909 Reservoir Oil Characteristics, Cut Bank Field, MontanaBy C. Q. Cupps
n view of increased interest in secondary recovery of oil in the Cut Bank field, Montana, a review has been made of unpublished data obtained during a 1943-44 study of reservoir oil characteristics in
Jan 1, 1967
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RI 3481 Bureau Of Mines - A.P.I. Pressure Core Barrell - Progress Report On Its Design And DevelopmentBy R. E. Heithecker, D. B. Taliaferro
"INTRODUCTION Recovery of core specimens from subsurface formations and their subsequent analysis are important aids in efficient development and operation of oil and gas fields. Gore specimens first
Nov 1, 1939
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RI 6747 In-Situ Measurement Of Rock Deformation In A Vein-Type Deep Mine (In Two Sections) 1. Instrumentation And Techniques 2. Analysis Of Measurements In The Star Mine Burke, IdahoBy Galen G. Waddell
Dilation and contraction of the rock surrounding horizontal access open-ings of a deep mine were analyzed during stope advance to determine what type of measurements, made with relatively inexpensive
Jan 1, 1966