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OFR-35-79 Development Of New Bond Release Criteria For Surface Coal Mines In The Eastern And Interior Coal Provinces Of The United States
By William M. Knuth
This study involved a review of bonding and bond release practices in the states of the Eastern and Midwestern Coal Provinces. Data was collected from regulatory authorities and site visits to documen
Jan 1, 1978
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IC 8393 Computer Usage For Evaluation Of Design Parameters And Cost Of Heat Exchangers - With No Change In Phase And Shell Side Pumping Costs As Prime Parameters
By P. R. Jones
A computer program was written for the design of a shell and tube heat exchanger on a price optimum basis for the following conditions: (1) Triangular pitch; (2) single or multiple pass; (3) heating o
Jan 1, 1968
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The Mineral Industry Of Alabama (a86f9f4a-110c-4c49-9ecb-b8d93379f845)
Alabama ranked 19th in the Nation in nonfuel mineral value1 in 1994, down from 18th in 1993, according to the U.S. Bureau of Mines. The estimated value for 1994 was $576 million, a 2.5% increase over
Jan 1, 1995
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IC 6248 Methods And Costs Of Stripping And Mining At The United Verde Open-Pit Mine, Jerome, Ariz. ? Introduction
By E. M. J. Alenius
This paper describing the mining practices at the United Verde open-pit mine at Jerome, Ariz., is one of a series being prepared by the United States Bureau of Mines on mining practices, methods, and
Jan 1, 1930
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OFR-14-82 Cableless Electronic Surveying Systems For Horizontal Holes
By Dennis McLaughin
This report contains a description of the contract activities performed by ENSCO, Inc. under contract No. H0178069. The purpose of this project was to enhance the Bureau of Mine?s Cableless Electronic
Jan 1, 1981
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Introduction (f021bf21-e10f-41e4-9b75-c54b8612d619)
Research 83 highlights significant studies conducted during the past fiscal year at Bureau facilities and offices. Readers who want more information about the projects and studies summarized here can
Jan 1, 1983
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RI 3114 Some Experimental Data on the Influence of Dry and Wet Cleaning on Coke Properties and on Gas and By-Product Yields of Pittsburgh and Mary Lee Coals
By A. C. Fieldner
"INTRODUCTION In a previous report3 prepared for the American Gas Association, the influence of washing coal on coke properties and on gas and by-product yields was discussed on the basis of answers t
May 1, 1931
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RI 3262 Progress Reports – Metallurgical Division 9. Thermodynamic Data on Metallurgically Important Compounds of Lead and the Antimony-Group Metals and their Applications
By Charles G. Maier
"INTRODUCTION The use of thermodynamic calculations to answer practical problems in metallurgy, especially those that are relatively difficult to test experimentally, is rapidly becoming a conventiona
Dec 1, 1934
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RI 2012 The Alsatian Potash Industry
By Frank K. Cameron
"The DepositsThere are two large deposits or groups of deposits of potash salts which, at the breaking cut of the great world war in 1913 and for several decades preceding, were practically the only c
Jul 1, 1919
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RI 3343 Ventilation Of Manholes - 2. Effect Of The Size Of The Manhole On Natural Ventilation ? Introduction
By G. W. Jones
In a previous report,6 results were given that showed the amount of natural ventilation in a manhole having a capacity of 74.l cubic feet when the number of ventilation openings in the cover was varie
Jan 1, 1937
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IC 6778 Mining Laws Of British Honduras ? Part I. ? General ? Prefatory Note
By E. P. Youngman
This paper is one of a series of digests of foreign mining legislation and court decisions that is being prepared in advance of a general report relative to the right of American citizens to explore f
Jan 1, 1934
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IC 8262 Minerals And The New Tariff Schedules Of The United States (79cf7965-2ea1-4aab-b42e-09b507efdf4d)
The Bureau of Mines has reviewed those portions of the "Tariff Schedules of the United States Annotated 1963" that are of interest to the minerals industry. This study shows to what extent rates of du
Jan 1, 1965
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OFR-200-82 Impact Of Proposed Lignite Mining In West Tennessee
By Richard G. Stearns
Extensive thick lignite apparently lies within 250 feet of the land surface in Dyer, Lake, Lauderdale, Obion and Tipton counties. Information on geology, land use, soils, groundwater and instability i
Jan 1, 1981
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RI 3047 Method for Measuring Voids in Porous Materials
By G. L. Oldright, J. D. Sullivan, W. E. Keck
"An apparatus and procedure developed in the laboratory of the South-west Experiment Station of the Bureau of Mines are capable not only of determining the rate and volume of penetration of solutions
Oct 1, 1930
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RI 3219 The National Safety Competition of 1932
By W. W. Adams
"The eighth National Safety Competition, that for 1932, conducted by the United States Bureau of Mines, was participated in by 322 mines and quarries operating in 34 States. Tables 2 to 6 show the rel
Jul 1, 1933
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Mineral Commodity Summaries 1985 - An Up-To-Date Summary Of 87 Nonfuel Mineral Commodities ? Aluminum
1. Domestic Production and Use: In 1984, 12 companies operated 27 primary aluminum reduction plants, with 3 firms accounting for 57% of production. Washington, Oregon, and Montana accounted for 35% of
Jan 1, 1985
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RI 3207 Study of Falls of Roof and Coal, Rock Springs District, Sweetwater County WY
By H. Tomlinson
"INTR0DUCTIONThis publication is a third of a series devoted to falls of roof and coal in coal mines of the Western States. It gives the results of examinations of the mines of the Rock Springs coal D
May 1, 1933
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RI 3257 Production of Explosives in the United States during the Calendar Year 1933
By V. E. Erwin, W. W. Adams, E. V. Walters
"Increased production of explosives in the United States in 1933 compared with 1932 is shown by statistics compiled by the Demographical Division, Health and Safety Branch, United States Bureau of Min
Nov 1, 1934
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RI 4643 Shuttle-Car Conversion From Storage-Battery To Diesel-Electric Power, Acme Mine. Certain-Teed Products Corp., Acme. Hardeman County. Tex.
By D. H. Platt
Gypsum and gypsite, used in the manufacture of plaster and plaster products, have been mined from deposits near Acme, Hardeman County, Tex., for more than 30 years. The Certain-toed Products Corp., 1
Jan 1, 1950
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RI 7809 Separating Copper From Scrap By Preferential Melting - Laboratory And Economic Evaluation
By Vance G. Leak
A technique for recovering copper and steel from metallic scrap has been developed by the Bureau of Mines based on preferential melting in molten salt baths at 1,150° to 1,250° C, The molten salt, pre
Jan 1, 1973