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Reconstruction Methods of the ?Hecla? Electrical-Mechanical Equipment
By A. C. Stevenson
IN OUTLINING the various steps taken and the exigences met during the time of unwatering and rebuilding the burnt top equipment at the Hecla mine, the major portion of the detail is omitted and a gene
Jan 1, 1924
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Index (89f3d5e5-8070-41a9-8d7a-6b6451f2c8fc)
Strain-Hardening Exponent of Cross-Rolled Beryllium Sheet by S. R. Maloff, Vol. 215, No. 5, page 872, was omitted from Table of Contents for the October issue. Stabilization Phenomena in Beta Phase
Jan 1, 1960
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Arthur J. Blair, Director, AIME
By AIME
WE got our chance to talk with Arthur J. Blair at the Annual Meeting at the Pennsylvania Hotel. By two o'clock Wednesday afternoon things had quieted down enough so we had our interview in the fo
Jan 1, 1948
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Problems in the Flotation of Gold
By R. A., Pallanch
THOUGH the flotation of gold ores has come into the lime- light largely in recent years, it is not a product of recent economic conditions but rather as old as flotation itself. It could hardly be oth
Jan 1, 1935
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Propagation of Brittle Fracture in Rock (41a2da9c-122b-40ab-9480-d029c7fe58fb)
By Bieniawski, Z. T.
The importance of understanding the phenomena associated with rock fracture has long been fully appreciated in rock mechanics. This is clearly apparent from the special attention paid to rock fracture
Jan 1, 1972
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Design of the Primary Crushing Plant
By L. R. MacLead
Delivery of tailing to any part of the area by gravity from the ridge was found practicable. Experiments with asbestos-cement pipe proved it possible to use level pipe across the dams if it is fed thr
Jan 1, 1942
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Modern Geophysical Methods in Prospecting
By Hans Lundberg
N OT so long ago, the discovery of an orebody took place only by accident. At the present time mineral deposits, even though concealed, may be revealed by their physical or geophysical characteristics
Jan 1, 1925
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Industry's Responsibility in the Postwar Economy ? Mining Men Must Plan for the Future or Government Will Do It for Them
By Charles Jackson Abrams
MINING is one of the major industries of the Rocky Mountain region and since the United States became involved in the present World War, all mines have been called upon by the Government for the maxim
Jan 1, 1945
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Keynote Address: Environmental and social responsibilities in future international resource management
By W. H. C. SIMMONDS
The mining, metallurgical, and petroleum industries can be viewed as financial or as social institutions or both. The differences between these two conceptions of their businesses will influence their
Jan 1, 1978
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Investigations Of Mercury Deposits
By McHenry Mosier
SUMMARY MERCURY is one of the strategic metals of which the supply has been raised from critical uncertainty to more than enough for essential demands. Work by the Bureau of Mines has contributed s
Jan 1, 1944
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Meetings And Excursions Of Other Societies.
By AIME AIME
The American Society of Mechanical Engineers.-The semi-annual meeting of the American Society of Mechanical Engineers will be held in Detroit, Mich., June 23-26. A session will be devoted to hoisting-
Jan 5, 1908
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Outokumpu Copper Mine and Smelter, Finland
By Mäkinen, Eero
OUTOKUMPU, a large copper mine in eastern Finland, has the distinction of being one of the few important mines in the world discovered by a geologist the late Otto Triistedt, of the Geological Sur- ve
Jan 1, 1938
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Cincinnati Paper - Further Determination of Manganese in Spiegel
By George C. Stone
Since the Troy meeting I have received several additional results of analysis of the same sample of spiegel, which I give below: P. I know only by correspondence. His methods are : for results Nos.
Jan 1, 1884
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Employment (731fa310-8c2f-4019-a6ac-2d0ec7556e57)
ENGINEERS AVAILABLE (Under this heading will be published notes sent to the Secretary of the Institute by members or other persons introduced by members.) Technical graduate, aged-31, with experien
Jan 12, 1914
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Part VII – July 1969 – Communications - Auger Fracture Surface Analysis of a Temper Embrittled 3340 Steel
By H. L. Marcus, P. W. Palmberg
As can be seen from the phase diagram A1-W1 the equilibrium solubility of tungsten in aluminum is practically nil at room temperature. By quenching from the liquid state (50,000°C per sec), Varic, Bur
Jan 1, 1970
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The Navy's Salvage Program
By F. Lowell Lawrance
JOHN SMITH, citizen of the U.S.A., has become so accustomed to reading that Congress has appropriated billions of dollars to pay war costs. that he no longer is impressed by relatively small figures,
Jan 1, 1944
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Part VII – July 1969 – Communications - Metastable Solubility of Tungsten in Aluminum
By A. Tonejc, A. Bonefacic
As can be seen from the phase diagram A1-W1 the equilibrium solubility of tungsten in aluminum is practically nil at room temperature. By quenching from the liquid state (50,000°C per sec), Varic, Bur
Jan 1, 1970
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Government Aids to the Mining Industry - Scope of Participation Should Aid Private Enterprise
By Paul M. Tyler
MUCH has been said in print, and much more that was unprintable, about burdensome controls, taxation, and multiplying restrictive, regulatory, or taxing activities of the Federal Government, but not s
Jan 1, 1947
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A Homemade Portable Assay Furnace
By James P. Sloss
A PERMANENT assay office is commonly established as part of the general plant equipment of operating gold and silver properties, but during the development stage of a mine, the cost of such an office
Jan 1, 1935
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Coal - Organizing and Financing Cooperative Research
By Elmer R. Kaiser
Industry Adopts Research: Seventy-Ave years ago Thomas A. Edison began in a modest way and with limited funds to gather about him men of various talents to form the first industrial research laborator
Jan 1, 1951