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IC 7559 Coal for Coke ProductionBy Arno C. Fieldner
Coal for coke production is fundamentally necessary for the manufacture of pig iron , and pig iron must be had for making steel - a vital element in our modern industrial economy . In both World Wars
Mar 1, 1950
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IC 7558 Carbide Insert Bit Drilling at the ClevelandCliffs Iron Co. mines, Ishpeming, MichBy Walter E. Lewis
This circular presents the method of making tests and apparent results of comparing performance of tungsten carbide insert bits and steel detachable bits by the Cleveland-Cliffs Iron Co. at the compan
Mar 1, 1950
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IC 7549 Conditions and Practices at Coal Mines in the Ruhr District of Western GermanyBy R. W. Stahl, H. E. Sanford, J. B. Benson
Immediately following the capitulation of Germany in World War II, the German State was occupied by various allied forces, who supervised all indus- trial activities in the area. Coal production is vi
Feb 1, 1950
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IC 7546 Mines and Mineral Deposits (Except Fuels), Park County, MontBy Glenn C. Reed
This report is one of a series based upon investigations made and being made within the Missouri River Basin in Montana by engineers of the Bureau of Mines , Albany Branch , Mining Division . These in
Feb 1, 1950
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IC 7550 Economic Importance of PegmatitesBy Paul M. Tyler
According to Lindgren , the economic importance of pegmatites stems from the fact that they represent the principal natural storehouse of two classes of mineral products : (1 ) common minerals in exce
Feb 1, 1950
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IC 7551 Report of Petroleum and Natural-Gas Branch, Fiscal Year 1949By R. A. Cattell
Progress of Bureau of Mines research related to oil and gas during the past fiscal year has been marked by the publication of more than 40 reports on the various phases of the work . These include pap
Feb 1, 1950
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Its Everyones BusinessAPPLICATIONS for loan contracts for the exploration, development and mining of strategic and critical metals and minerals are now being accepted by the Department of the Interior. The RFC is authorize
Jan 12, 1950
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The Influence of Certain Inorganic Salts on the Flotation of Lead CarbonateBy Maurice Rey, Victor Formanek, Paul Chataignon
IT is found when floating oxidized lead ores by sulphidization, that the presence of calcium salts in the water, is usually detrimental and lowers the recovery. This effect is particularly marked in d
Jan 11, 1950
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British Mark a Century of Progress in Coal Mine Health and SafetyBy V. S. Swaminathan
This year, Great Britain is looking back over a century to August 14, 1850, the day when the first "Act for the Inspection of Coal Mines" was passed in that country, an act which signaled the end of o
Jan 11, 1950
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Its Everyones BusinessCHAIRMAN DOUGHTON of the House Ways and Means Committee announced on September 23 that the committee has scheduled public hearings on an excess-profits tax, beginning on November 15, 1950. In the mean
Jan 11, 1950
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Sinking Tennessee Copper's Circular ShaftBy L. Weaver
THE Tennessee Copper Co.'s mines are in the southeast corner of the state of Tennessee. Polk Co., in the well-known Ducktown copper basin. Their new circular production shaft will eventually be t
Jan 11, 1950
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Mining Engineering Editorial - Taking the Long ViewTaking the Long View THE present international situation has serious implications for this nation. The possibility of total war is no more appalling than the threat of making the United States perm
Jan 10, 1950
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Open-Pit Forum - Drilling and Blasting Bagdad CopperBy Olaf Hondrum
CHURN drilling equipment at Bagdad consists of two Bucyrus Erie 27-T model drills and one 22-T drill with gasoline engines. The drilling tools weigh approximately 1600 lb. The holes are drilled with 7
Jan 10, 1950
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Its Everyones BusinessREPUBLIC STEEL CORP. and Armco Steel Corp. have joined in a $160,000,000 project for the production of iron ore from Taconite in the Lake Superior mining region. The two companies announced acquisitio
Jan 10, 1950
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Mine and Surface MapsBy Neil Donnell, O&apos
MODERN mine maps are largely a product of evolution. The first mine maps used in the west were old composite maps with all the levels plotted on the same sheet. The composite was widely used and occas
Jan 9, 1950
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Its Everyones BusinessNational Minerals Advisory Council A meeting of the National Minerals Advisory Council on August 3rd in Washington, D. C., indicated the vitally important part that the mining industry is to play i
Jan 9, 1950
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Its Everyones BusinessTHE research and policy committee of the Committee for Economic Development, a non-profit research organization composed of leaders in industry and the professions, including such prominent figures as
Jan 8, 1950
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Inspiration's Successful Change to Open-Pit MiningBy H. C. Weed
THE Inspiration Consolidated Copper Co., located in the Globe-Miami district at Inspiration, Ariz., became a producer of copper in 1915. From 1915 until 1948, 116,278,000 tons of ore were produced fro
Jan 8, 1950
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Its Everyones BusinessPUBLIC hearings began before the Committee for Reciprocity Information on May 24, 1950, for the purpose of unearthing data and opinion that will be helpful in the forthcoming reciprocal tariff and oth
Jan 7, 1950
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Deposits of Heavy Minerals on the Brazilian CoastBy Joseph L. Gillson
BRAZIL has had an industry based on ocean beach deposits of heavy minerals containing monazite, zircon, rutile, and ilmenite for well over 40 years, but except at the very earliest period, prior to 19
Jan 6, 1950