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RI 8470 Iron-Base Alloys Strengthened by Laves Phases as Substitutes for Stainless Steels
By J. S. Dunning
One Federal Bureau of Mines research goal, to minimize requirements for domestically scarce mineral commodities through conservation and substitution, can be accomplished by utilizing more abundant el
Jan 1, 1980
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RI 7643 Creep And Other Properties Of Zinc-Copper-Titanium Alloys Annealed After Rolling
By L. A. Neumeier
The Bureau of Mines evaluated creep properties of Zn-Cu-Ti alloys that were annealed after finish-rolling either cold) or at 480° F (249° C). Compositions ranged up to 1.25 pct Cu and 0.36 pct Ti. Mos
Jan 1, 1972
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Improved Rail Haulage Communications
By Harry Dobroski
Communications with moving tracked vehicles in a rail haulage mine pose a difficult problem. These communications take place from dispatcher to vehicles or from vehicle to vehicle via the trolley line
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OFR-41-80 Underground Vibrations From Surface Blasting At Jenny Mine, Kentucky
By Dennis E. Jensen
Field studies were performed during blasting operations for strip coal mining above the room and pillar workings at Jenny mine in eastern Kentucky. The study is part of the Bureau of Mines program to
Jan 1, 1979
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OFR-139-81 Development Of Improved Detection Instruments For Toxic Gas Contaminants In Mining Atmospheres
By J. A. Kosek
Work has been carried out under Bureau of Mines Contract No. HO395132 to develop and fabricate gas sensors for mining applications. Promising new instruments have been designed, developed, tested and
Jan 1, 1981
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OFR-98-82 Compaction Criteria For Coal Waste Embankments
By N. S. Shan
This report presents the results of a study to determine compaction criteria for coal waste embankments. The purpose of this study is to evaluate the costs and resulting effects on the engineering pro
Jan 1, 1981
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OFR-80(1)-77 Executive Summary - Research And Development Priorities Summary Report For March 1, 1974 To March 31, 1977 - Volume I ? Introduction
By James J. Scott
Eleven workshops were held in various locations throughout the country in an attempt to reach the many diverse groups working in various mineral commodity areas and special ties. These meetings were h
Jan 1, 1977
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OFR-4-79 Feasibility Studies And Demonstration Of Methane Recovery From Pennsylvania Coal Seams
By Robert L. Frantz
The performances of the three bituminous coal demonstration methane re¬covery boreholes, located in Greene County, Pennsylvania, are reviewed. Development of these vertical holes was largely underwrit
Jan 1, 1978
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OFR-93-78 Dynamic Practice Size Measurement Of Coal Dust
By Virgil A. Marple
The primary purpose of this contract was to evaluate methods and techniques by which the size distribution acid concentration of mining-related dusts can be measured. One result has been the developme
Jan 1, 1977
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OFR-68-76 Evaluation Of The Cadmium Disc Breakflash In Testing Electrical Circuits For Safety In Explosive Atmospheres - A Comprehensive Study Of Intrinsic Safety Criteria
By Zsuzsanna Zborovszky
Study of different parameters (minimum discharge voltage, minimum discharge current, wire electrode diameter, speed of separation, electrode materials, overlap of the electrodes, etc.), their direct e
Jan 1, 1974
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RI 7806 Natural Gas As An Automotive Fuel, An Experimental Study
A study was conducted by the Bureau of Mines to evaluate natural gas as an automotive fuel and to provide guidelines for optimum engine adjustments for low exhaust emissions. The study was conducted u
Jan 1, 1973
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OFR-122(2)-78 Advancing Oil Shale Mining Technology: Program Evaluation - Time-Cost-Risk Analysis
By G. F. Kuncir
The time-cost-risk analysis described herein was performed as part of an evaluation of the Advancing Oil Shale Mining Technology Program performed by The Aerospace Corporation. The objectives of this
Jan 1, 1977
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IC 6865 Electric Cap Lamps In Alabama Mines, 1935 ? Introduction
By Frank E. Cash
As a part of its safety program the United States Bureau of Mines has fostered the development, use, and improvement of portable electric mine lamps. Although there is still need for better illuminati
Jan 1, 1935
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RI 2901 The Reaction Between Magnetite And Ferrous Sulphide ? Introduction
By F. S. Wartman
The presence of magnetite, either dissolved or suspended as solid crystals, in slags from the copper reverberatory furnace is a frequently mentioned cause of an abnormally high copper content in those
Jan 1, 1928
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Minor Metals - Arsenic (545169d6-93ee-43ea-8b17-3e028d7e5f60)
By H. J. Schroeder
Legislation and Government Programs.-The Occupational Safety and Health Administration (OSHA) accepted written comments until July 23, 1976, and held an informal hearing on August 24, 1976, to receive
Jan 1, 1978
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RI 4190 Studies on Methods for Recovering Scrap Mica from Pegmatite of the Black Hills, South Dakota
By Gerald A. Muson, Fremont F. Clarke
"INTRODUCTION The use of scrap mica as an industrial raw material has grown rapidly during the past two decades. Demands by various industries for ground mica for use in the roofing, paint, rubber, pl
Feb 1, 1949
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OFR-13-93 Nelsonite Dikes In The Roseland District Of West-Central Virginia: A Potential Source Of Titanium Ore
By Noel N. Moebs
The U.S. Bureau of Mines is conducting research on many topics relating to the mineral resources of the United States. This is done to ensure an adequate supply of minerals essential to a viable domes
Jan 1, 1993
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IC 8780 Analyses Of Natural Gases, 1977 ? Introduction
By B. J. Moore
This publication contains analyses and related source data for 256 natural gas samples from wells and pipelines in 17 States. All of the samples were obtained and analyzed during calendar year 1977 as
Jan 1, 1978
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RI 5968 Review Of Criteria For Estimating Damage To Residences From Blasting Vibrations ? Summary And Conclusions
By Wilbur I. Duvall
In a review of so 40 papers on damage to residential structures resulting from blasting, only 3 were found that present data on the observed amplitude and frequency of the vibration levels produced by
Jan 1, 1962
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OFR-83B-92 Hoisting System Components - Selection And Guidelines - Volume 2
The objective of this study was two-fold: 1. To perform a world literature search pertinent to the analysis, selection and design of hoisting systems and their components and to codify the search i
Jan 1, 1988