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Fifteen Years Of Consistent Longwall Production At Bethlehem's Cambria Division, Ebensburg, Pennsylvania
By Edmund J. Korber, Donald E. Raab, Frank A. Burns
During the early 1960s, the advent of self- advancing longwall roof supports triggered serious consideration by Bethlehem management to introduce the technique of longwall mining at one of our central
Jan 1, 1981
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Purchasing Practice for the Mining Operations at Climax - Supplying the Right Material When It Is Needed Is Vital to Smooth Operation
By L. A. Cowan
IF the elements of personality be those characteristics in which humans differ, and if this definition be applied to the purchasing department for the Climax operations in Colorado, it must he conclud
Jan 1, 1946
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A Machine for Drawing Coke from Bee-Hive Ovens
By George T. Wickes
(Washington Meeting, May, 1905.) SEVERAL years ago, Mr. Robert A. Cook described and illustrated in our Transactions 1 a mechanical coke-drawer, patented in 1891 by Mr. Thomas Smith of the Thorncliff
Jul 1, 1905
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Preconcentration Of Native Copper And Porphyry Copper Ores By Electronic Sorting
By R. W. Nash, A. E. Schwaneke, V. R. Miller
The Bureau of Mines developed a detector for controlling sorting devices to separate the copper-bearing fragments from the barren portion of Michigan native copper and western prophyry copper ores. A
Jan 8, 1978
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Needed Improvements in Rotary-Drilling Equipment
By J. E. Brantly
THE oil-producing industry may logically be 'divided into four independent branches: (1) Acquisition of possible productive lands by lease, fee purchase, concession, or otherwise and the perfecti
Jan 1, 1937
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Economics of the Petroleum Industry
By AIME AIME
THE petroleum economics session," held on Wednesday morning, Feb. 20, 1929, presided over by Campbell Osborn, chairman, proved to be of un- usual interest and resulted in serious and constructive disc
Jan 1, 1929
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11. The Birmingham Red-Ore District, Alabama
By Thomas A. Simpson, Tunstall R. Gray
The Birmingham district first produced steel from Alabama hematite ores in 1899. Since then, the district generally produced more than 6.0 million gross tons of ore a year to the late 1950's. Producti
Jan 1, 1968
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Some Properties of Fuller's Earth and Acid-treated Earths as Oil-refining Adsorbents
By C. W. Davis
THE name fuller's earth, which was derived from its early use in "fulling" or removing grease from woolen goods, is a term that is generally considered to designate mineral matter, containing hyd
Jan 1, 1929
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Effect Of Humidity On Mine-Explosions.
By Carl Scholz
DURING November And December, 1907, Four Serious Mine-explosions Occurred In The Appalachian Coal-Field, Which Resulted In The Loss Of Nearly A Thousand Lives And Caused An Enormous . Damage To Proper
Jan 7, 1908
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Some Comparative Properties of Tough Pitch and Phosphorized Copper (56e4885e-4963-4d51-8581-9b21d382d457)
By Webster, Wm. Reuben
THE greatly enlarged demand for small sizes of seamless copper tube which has recently occurred, due particularly to the rapid growth of the electric household-refrigerator industry, has emphasized th
Jan 1, 1927
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Tomorrow's Mining, Its Methods and Tools
By Augustus Locke
THE technical sessions at the Regional Meeting of the A.I.M.E. in San Francisco are to be de- voted LO changes, current or predictable, which may be expected to alter today's practices in mining
Jan 1, 1939
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Ponca City Oil Meeting an Outstanding Success
By Edward H. Robie
PONCA CITY proved an ideal selection as a place of meeting for the Petroleum Division this fall. The accommodations at the Conoco Club were just what was required for such a gathering; the committee h
Jan 1, 1932
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Gold Mining in the Mojave District, California
By W. B. Tucker
UNUSUAL interest has recently centered in the Mojave mining district of California, owing to new discoveries of gold ore at the Silver Queen mine, and subsequently at other neighboring proper- ties. T
Jan 1, 1936
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The Coal Mining Industry - Bituminous Output Gains - More Mechanization and Cleaning - Better Planning
By Eugene McAuliffe
AS this is written, the probability A is that the bituminous coal out- put for 1936 will approximate 420,000,000 tons (of 2000 lb.) with an average working time for all mines of 205 days. The results
Jan 1, 1937
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Longwall Subsidence Over The Pittsburgh No. 8 Coal On North American Coal Corporation's Eastern Ohio Properties
By Michael S. Roscoe
In order to more accurately predict longwall surface subsidence over the Pittsburgh No. 8 Coal in Eastern Ohio, North American Coal Corporation's Quarto Mining Company undertook or participated in
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Surface Mining - Stripping Pitching Beds in Pennsylvania's Anthracite Region (With Discussion) (Vol. 157, Coal Division)
By O. W. Shimer, D. C. Helms, C. E. Brown
The early history and progress of anthracite stripping, from the first known operation at Summit Hill in 1821 through 1917, was covered in 1917 in a paper by J. B. Warriner,1 then chief engineer, now
Jan 1, 1946
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Papers - Mining - Stripping Pitching Beds in Pennsylvania's Anthracite Region (T. P. 1601 with discussion)
By O. W. Shimer, D. C. Helms, C. E. Brown
The early history and progress of anthracite stripping, from the first known operation at Summit Hill in 1821 through 1917, was covered in 1917 in a paper by J. B. Warriner,1 then chief engineer, now
Jan 1, 1944
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Oil And Gas Developments in West Texas during 1945
By GORDON H. FISHER
During the year 1945, the drilling pace in West Texas increased above that in the year 1944, and represented the highest number of well completions since 2941. The 1680 new wells drilled 8,287,958 ft.
Jan 1, 1946
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Zinc Ore Reduction
By Arthur A. Center
WAR demand- motivated developments in the zinc industry during 1942. Stocks of Prime Western were built up and High-Grade remained tight. The Prince The Prime Western stocks are expected to be cut do
Jan 1, 1943
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San Francisco Paper - Manufacture and Tests of Silica Brick for the Byproduct Coke Oven (with Discussion)
By Kenneth Seaver
It is rather gratifying that in the field of the manufacture of refractories, in which, as a whole, foreign practice has surpassed us, the United States stands pre-eminent in the making of silica bric
Jan 1, 1916