Search Documents
Search Again
Search Again
Refine Search
Refine Search
-
Cost of Over-Capacity and Its CureBy S. A., Taylor
IT is very difficult to arrive at exact figures for the cost of maintaining excess capacity of coal mines, but we can approximate the various items. To do this, I will take the Pittsburgh district of
Jan 1, 1928
-
Postwar Accumulation of Mineral Stock PilesBy C. K. Leith
THE resolution presented at the Annual Meeting of the A.I.M.E., calling on Congress to provide now for postwar accumulation of mineral stock piles under Government control, expresses, I think, the nea
Jan 1, 1943
-
Discussion of Mr. Rothwell's paper on Correspondence-Schools (see p. 338)H. H. Stoek, Scranton, Pa. (communication to the Secretary): Mr. Rothwell's condemnation of my paper on the International Correspondence Schools as not giving an impartial view of the whole field
Jan 1, 1900
-
Some Practical Aspects of Mineral Industries Education in the Latin AmericasBy Edward Steidle
TWO years ago the Committee on Latin American Education Relations, Mineral Industries Education Division, started a study of mineral industries education in the Latin Americas. Information was obtaina
Jan 1, 1945
-
Chicago Paper - Mining Methods of Alaska Gastineau Mining Co.By G. T. Jackson
The Alaska Gastineau Mining Co.'s mine is located at Perseverance, about 4 mi. east of Juheau, Alaska. Its property consists of a group of claims, the lode system traversing these claims for a di
Jan 1, 1920
-
Discussions - Of Mr. Colby's Paper on Comparison of American and Foreign Rail-Specifications, with a Proposed Standard Specification to Cover American Rails Rolled for Export (see p. 576)E. Windsor Richards, London, England:—In reading this paper the most interesting point to me mas the question of the maximum percentage of phosphorus allowable in the steel rail. Mr. Colby said, and w
Jan 1, 1907
-
66. The Coeur d'Alene District, IdahoBy Verne C. Fryklund, S. Warren Hobbs
The Coeur d'Alene district in the panhandle of Idaho is one of the major lead-zinc-silver producing areas in the world. The value of recorded production to date has exceeded $2 billion. Country rock c
Jan 1, 1968
-
Institute of Metals Division - Carbides in Long-tempered Vanadium Steels - DiscussionBy J. L. Lamon, W. Crafts
P. Coheur and L. Habraken—We read this paper with great interest and are glad to congratulate the authors for their valuable work, supplying an important contribution to the mechanism of tempering on
Jan 1, 1951
-
The Woman's Auxiliary To The A. I. M. E.MRS. SIDNEY J. JENNINGS, President, MRS. ARTHUR S.. DWIGHT, First Vice-President, MRS. KARL EILERS, Second Vice-President, MRS. H. W. HARDINGE, Third Vice-President, MRS. BRADLEY STOUGHTON, Recor
Jan 7, 1917
-
Hauling Salt At Avery Island MineBy Erland Johnson
BRINE was discovered at Avery Island, La., in 1790, but it was not until 1862 that rock salt was found about 13 ft below surface-the first discovery of rock salt on the continent. Maximum elevation
Jan 6, 1957
-
Powder MetallurgyBy Frances H. Clark
DEVELOPMENTS in powder metallurgy have been disappointing in 1943. If any new part has gone into large-scale production, knowledge of it has been restricted by considerations of national security. Nor
Jan 1, 1944
-
Part II – February 1968 - Communication - Evidence for Diffusional Creep with Low Strain Rate SensitivityBy S. W. Zehr, G. S. Murty, W. A. Backofen
AN observation by Squires, Weiner, and phillipsl has stimulated interest in a mechanism of deformation at high temperature (above -0.5 of the absolute melting point) that is not usually thought to be
Jan 1, 1969
-
Low-Cost Oxygen for Metallurgical OperationsBy Nagel, Theodore
USE of oxygen in metallurgical operations was investigated by a committee of unusually able engineers more than ten years ago. A record of their work appeared under the title "The Use of Oxygen or Oxy
Jan 1, 1935
-
Trepca Mines Limited-IV Milling the OreBy W. C. PAGE
ALL mine ore here must be concentrated before shipment, which involves selective flotation. Three products are made: lead, zinc, and pyrite concentrates. The equipment and practice are so well outline
Jan 1, 1936
-
15. The Iron Mountain Mine, Iron Mountain, MissouriBy John E. Murphy, Ernest L. Ohle
Hematite-magnetite ore bodies at Iron Mountain, Missouri, have produced nearly 9 million tons of iron ore concentrates since 1844. The ore minerals occur principally as open-space filling in fractured
Jan 1, 1968
-
Papers - The Cobalt-nickel-silicon System between 0 and 20 Per Cent Silicon (T. P. 1170, with discussion)By Arthur C. Forsyth, R. L. Dowdell
A search through the available literature shows that the cobalt-nickel-silicon system has not been systematically studied. This seems rather odd because all three elements are fairly abundant and have
Jan 1, 1940
-
Papers - The Cobalt-nickel-silicon System between 0 and 20 Per Cent Silicon (T. P. 1170, with discussion)By Arthur C. Forsyth, R. L. Dowdell
A search through the available literature shows that the cobalt-nickel-silicon system has not been systematically studied. This seems rather odd because all three elements are fairly abundant and have
Jan 1, 1940
-
Institute of Metals Division - Activation Energy for High Temperature Creep of High Purity AluminumBy H. I-Lieh Huang, O. D. Sherby, J. E. Dorn
RECENT investigations1-4 have suggested that the total plastic strain, C, for high temperature creep under a given stress can be correlated by means of a temperature-compensated time, te- where t is t
Jan 1, 1957
-
Australia - Mineral Development And PoliciesBy J. D. Anthony
The Australian continent possesses significant reserves of a wide range of minerals, including bauxite, coal, copper, diamonds, gold, iron ore, lead, manganese, mineral sands, nickel, phosphate, silve
Jan 1, 1982
-
Copper in the 1980sBy Robert :H. . Lesemann
I recently gave a talk at a seminar on mine development in the Eighties. I had to present CRU' s long-range market outlook for copper, lead, zinc, nickel, molybdenum and silver. In reviewing the
Jan 1, 1982