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IC 7001 Review Of Literature On Conditioning Air For Advancement Of Health And Safety In Mines ? Introduction
By D. Harrington
This circular presents part I of a series of papers of a review of the literature on air conditioning in mines, with particular reference to the health, safety, and efficiency of miners. It deals with
Jan 1, 1938
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RI 4128 Gasification of Lignite & Subbituminous Coal - Progress Report 1945-46
By E. O. Wagner, A. W. Koth, V. F. Parry, J. B. Goodman, D. C. Gernies
"INTRODUCTION A commercial-scale pilot plant for gasification of lignite was completed by the Bureau of Mines at Grand Forks, N. Dak., early in 1945 as an extension of work on, gasification of low-ran
Sep 1, 1947
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OFR-115(1)-78 Study Of Mine Fires And Mine Ventilation - Part I - Computer Simulation Of Ventilation Systems Under The Influence Of Mine Fires - Summary
By Rudolf E. Greuer
The existing computer programs for the simulation of ventilation systems under normal ventilation conditions are reviewed and a suitable program for including the influence of mine fires is selected.
Jan 1, 2011
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Safety Practices In Dredging And Hydraulic Mining - Introduction
By R. W. Fatzinger
The accident-frequency rate for placer mining in 1942 is reported as 36.923 accidents per million man-hours worked. This figure places placer-mining accident frequency slightly higher than that given
Jan 1, 1948
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OFR-33-76 Remote Control For Continuous Miners: A State-Of-The-Art Review
By L. D. Gent
This report reviews the current state of the art of remote control techniques for underground continuous miners. A delineation of aspects requiring additional data is presented. Also a summary and del
Jan 1, 1975
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IC 6423 Compendium of Limes in Hydrometallurgy and Flotation
By R. G. O'MEARA, Alexander M. Gow, W. T. SCHRENK
Lime is used extensively in the various industries. The National Lime Association in an excellent and recent bulletin lists 23 important in- dustries in which lime plays a vital role; and it thereby j
Apr 1, 1931
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OFR-45-78 Safety Analysis Of Shaft-Sinking Operations
The safety analysis of shaft-sinking operations included a review of accident reports from coal and metal-nonmetallic mine shaft-sinking projects in the United States, a review of foreign and domestic
Jan 1, 1977
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RI 8005 Methane Ignition by Frictional Impact Between Aluminum Alloys and Rusted Steel
By D. H. Desy
The Bureau of Mines has conducted research on the ignition of methane-air mixtures by sparks caused by frictional impact of aluminum alloys on rusted steel at typical coal mine fan speeds. The objecti
Jan 1, 1975
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RI 3600 Progress Reports - Metallurgical Division - 50. Annual Report Of The Metallurgical Division. Fiscal Year 1941 ? Introduction
By R. S. Dean
In addition to the normal work and that pertaining to strategic minerals, the Metallurgical Division has been made responsible for carrying on major investigations in the development of processes&apos
Jan 1, 1941
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RI 3345 Permissible Electrically Operated Rock-Dust Distributors ? Introduction
The general nature of the special constructional features that are required to provide safety from explosion hazards on machines approved as permissible by the Bureau of Mines is fairly well known to
Jan 1, 1937
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OFR-10-94 Coal Recoverability And The Definition Of Coal Reserves: Central Appalachian Region, 1993
By Timothy J. Rohrbacher
This report presents results from an ongoing U.S. Bureau of Mines study defining domestic coal reserves. Examinations of five 7 ½ -minute central Appalachian quadrangles have been completed to date. O
Jan 1, 1994
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OFR-158-81 Ground Fault And Overcurrent Protection Criteria For Coal Mine AC Distribution Systems
By John A. Kiefer
Ground fault and overcurrent protection criteria for coal mine a.c. distribution systems were examined under a Bureau of Mines funded investigation. The report begins with a literature review which di
Jan 1, 1980
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RI 7623 Photoelectric Concentrator For The Wet Concentrating Table
By R. A. Welsh
The Bureau of Mines has developed a photoelectric concentrator apparatus which is capable of collecting incremental products from the discharge of wet concentrating tables. The instrument uses photoel
Jan 1, 1972
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OFR-123(5)-78 Advancement Of Mine Ventilation Network Analysis From Art To Science - Volume V Application Of PSU/MVS To The Ventilation Planning Of A New Mine
By R. Stefanko
In this report, the use of Penn State Ventilation Simulator (PSU/MVS) for planning and evaluating new coal mine ventilation systems is demonstrated. The simulator's application to evaluate the ve
Jan 1, 1977
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RI 8730 Sealing Openings in Abandoned Mines by Pneumatic Stowing
By Slavoljub D. Maksimovic
The Bureau of Mines, through a memorandum of agreement with the State of Ohio, tested a method of constructing seals in abandoned mine openings in Ohio by means of pneumatic stowing of crushed limesto
Jan 1, 1982
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RI 5034 Storage Of Low-Rank Coals ? Introduction And Summary
By R. R. Allen
[The utilization of Western coals and lignite is a continuing study of the Bureau of Mines, and storage of these fuels is of paramount importance. Since the seasonal demand for coal in the Western Sta
Jan 1, 1954
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RI 6234 Statistical Analysis Of Diamond-Drill Sample Data From The Cebolla Creek Titaniferous Iron Deposit, Gunnison County, Colo.
By R. D. Berkenkotter
Titanium and iron assays obtained from cores of three diamond-drill holes from the Cebolla Creek titaniferous iron deposit were evaluated by statistical techniques to obtain information concerning the
Jan 1, 1963
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RI 3452 Studies Of Roof Movement In Coal Mines - 2. Crucible Mine Of The Crucible Fuel Co. ? Introduction (b2c06069-2efb-4770-a82c-ff6e6ca0ac43)
By E. R. Maize
This report is t e second of s series on roof movement in coal mines. The first (R. I. 3355)4/ dealt with convergence of roof and floor and movement of the surface accompanying and following extractio
Jan 1, 1939
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Empirical Approaches For Weak Rock Masses (15cf9004-760f-47b2-8d56-8025fc15bd1d)
By Rimas Pakalnis, Tom Brady, Lewis Martin
A major focus of ground control research presently being conducted by the Spokane Research Laboratory of the National Institute for Occupational Safety and Health (NIOSH) is to incorporate weak rock m
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State Statistics – Tennessee
Tennessee is the largest federal program state in the nation, with 62 active surface and underground coal mines. Tennessee's coal resources lie in 22 coal seams in 22 counties. Twelve seams a
Jan 1, 1992