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  • AIME
    Lead, Zinc, Copper and the Tariff

    By Morris J. Elsing

    FOR MANY YEARS lead and zinc have had the so-called protection of a tariff and it is the purpose of the following brief discussion to show what' such protection actually accomplishes with a view

    Jan 1, 1932

  • AIME
    PART I – Papers - Sulfurization Kinetics of Delta Iron at 1410°C

    By J. H. Swisher

    The solubility of sulfur and rate of solution of sulfur in pure Lron were measured in H2S + H2 and H2S + H2 H2O gas mixtures. The solubility and diffusivity of sulfur at 1410°Care 0.13 pet S and 1.0 x

    Jan 1, 1968

  • AIME
    Mining Methods at the Cerro de Pasco Properties

    By V. L., McCutchan

    FORM of ore bodies, strength of wall rock, and quantity of water that must be handled differ so greatly in the various districts in which the Corporation operates that a variety of mining methods have

    Jan 1, 1945

  • AIME
    The Economic Size of the Open Hearth

    By F. A., King

    THE problem of the proper size and capacity of the open-hearth furnace has been a predominant issue ever since its inception some sixty years ago. The original furnaces, built in 1868 at Landore, Engl

    Jan 1, 1928

  • AIME
    Strip Coal Mining in the Southwest.

    By K. A. SPENCER

    THE production of soft coal from strip mines in the United States has shown a remarkable growth in the last sixteen years, increasing from one and one-quarter million tons in 1914 to approximately twe

    Jan 1, 1931

  • AIME
    Mine Explosions Not So Deadly in 1941

    By John T. Ryan

    DEFINITE improvement in its accident fatality rate in the coal-mining industry was recorded during 1941, based on preliminary figures for the period from January through October. Total production duri

    Jan 1, 1942

  • AIME
    The Institute Meets at Pittsburgh

    By AIME AIME

    THE official opening at the 134th general meeting of the Institute was held on Oct. 6, but it was prefaced by two round table conferences on Oct. 5. The open-hearth group held the fourth of their semi

    Jan 1, 1926

  • AIME
    Miscellaneous Announcements (cf3982a7-b235-4012-bfaa-7c3686111f81)

    Meetings of this committee were held at the Institute headquarters on April 18, May 2 and 15, and June 19. At the meeting of June 19, the Secretary reported that letters of invitation to apply for me

    Jan 7, 1913

  • AIME
    Mining Practice ? Improved Methods Cut Costs and Increase Ore Reserves - Mechanical Equipment Improves Workers? Efficiency ? Shaped Charges and Fusion Piercing Prove Effective

    By Philip B. Bucky

    WITH the exhaustion of the sections of iron ore bodies amenable to opencut mining the iron ore miners raise the question: "How can we mine the extensions of these ore bodies in depth with the same cos

    Jan 1, 1947

  • AIME
    By-Law

    I PRESIDING OFFICER At all business meetings of the Institute the President, or, in his absence, the First Vice-President, or, in the absence of both of them, any other Vice¬ President or Director, c

    Jan 1, 1923

  • AIME
    Institute of Metals Division - Determination of Diffusivity of Carbon in Tantalum and Columbium Carbides by Layer-Growth Measurements (TN)

    By R. Steinitz, L. Seigle, R. Resnick

    THE rates of growth of the carbide phases MC and M2C in the Ta-C and Cb-C systems have been measured at various temperatures and the results used to estimate the rate of carbon diffusion within the in

    Jan 1, 1965

  • AIME
    Qualifications For Membership

    The following petition for amendment of the constitutional provisions relating to qualifications for membership in the Institute, signed by 75 members, of whom 27 are members of the Committee on Incre

    Jan 2, 1918

  • AIME
    39. Geology and Uranium-Vanadium Deposits in the Uravan Mineral Belt, Southwestern Colorado

    By E. Motica

    Ores containing uranium and vanadium minerals have been mined from the Salt Wash Member of the Morrison Formation from many localities in the Colorado Plateau region since about 1900. The most product

    Jan 1, 1968

  • AIME
    Sponge Iron and Its Relation to the Steel Industry

    By Edward P. Barrett

    DURING the past few years numerous references have been made in the technical press and Bureau of Mines Bulletin 270 to sponge iron' and so-called "direct metal" processes. The idea has been prev

    Jan 1, 1930

  • AIME
    PART IV - Papers - Slag-Metal Equilibria in the Pb-PbO-Sb2O3 System

    By A. D. Zunkel, A. H. Larson

    Equilibrium antimony contents of pb-sb alloys in contact with PbO-Sb2O3 slags containing less than 45 mole pct Sb203 uleve determined at 650', 700°, and 750°C in an inert atmosphere. In this ten~

    Jan 1, 1968

  • AIME
    55. Geology of the Spar Mountain Beryllium District, Utah

    By Daniel R. Shawe

    Large tabular beryllium deposits in waterlaid rhyolitic tuff at Spor Mountain, Utah, contain the world's largest known resources of beryllium (as bertrandite). The district also has produced fluorspar

    Jan 1, 1968

  • AIME
    Problems of Coal Production and Utilization

    By AIME AIME

    COAL occupied a large place in the technical sessions of the Institute at its annual meeting for in addition to three sessions specifically de- voted to coal the two sessions on mine ventilation and t

    Jan 1, 1929

  • AIME
    San Francisco Paper - Radiography of Metals

    By Wheeler P. Davey

    In an article in the General Electric Review, January, 1915, reference was made to the X-ray examination of a steel casting 9/16 in thick. Fig. 1 shows one of the radiographs thus obtained. All these

    Jan 1, 1916

  • AIME
    Field Observations of Electrical Resistivity and Their Practical Application

    By J. G. Koenigsberger

    THE electrical specific resistance of rocks in the field is measured by sending a current through a medium of great volume, compared to the electrodes, whose resistivity should be measured. The whole

    Jan 1, 1928

  • AIME
    Papers - Production - Domestic - Petroleum Development in Oklahoma in 1937

    By H. E. Rorschach

    Activity in Oklahoma oil fields made 1937 one of the best years since 1926. During the year, 3454 wells were completed, an increase of about 25 per cent over the year 1936. Purchasers reports filed wi

    Jan 1, 1938