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  • NIOSH
    OFR-18-73 Investigation Of Requirements And Performance Of Safety Catches On Wire-Rope-Suspended, Man-Carrying Conveyances In United States Coal Mines

    By C. H. Larsen

    The results of a comprehensive investigation of conveyance arrestment devices (safety catches) in United States coal mines are presented. Availability and use, performance, inspection, maintenance, te

    Jan 1, 1972

  • SME
    Our Government's Stifling Excesses

    By R. E. Murray

    "It is a gloomy moment in the history of our country. Not in the lifetime of most men has there been so much grave and deep apprehension; never has the future seemed so incalculable as at this time. T

    Jan 1, 1980

  • AUSIMM
    Comparing Drilling Patterns for Coal Reserve Assessment

    The criterion for assessing the accuracy of coal reserve estimates proposed by Philip and Watson (1982) is criticized.Following Royle (1977), it is suggested that the global estimation variance found

    Jan 1, 1983

  • SME
    Annual Review 2015 Mining Review

    By J. A. Ober

    "In 2015, the estimated value of nonfuel mineral production in the United States decreased by 3 percent from that in 2014 (Table 1), mainly as a result of decreased metal and metallic mineral prices,

    May 1, 2016

  • NIOSH
    OFR-74-78 Waveform Generator-Package And Receiver (Mancarried And Helicopter Receiver Portion) (d0ba41ae-0b3f-47f3-9920-d3b1a270d5e4)

    By Charles Anema

    The Mancarried and Helicopter Receivers were developed under the contract for trapped miner location. This program was a five phase program with 15 mancarried and 5 helicopter production receivers del

    Jan 1, 1976

  • SME
    Lithologic Controls On Subsidence

    By Jr. Abel

    Subsidence is controlled by a complex combination of mining and geologic factors. For example, a world-wide compilation of data shows that, as the percentage of shale in the overying rock mass decreas

    Jan 1, 1980

  • NIOSH
    Bulletin 213 Talc and Soapstone Their Mining Milling Products and Uses

    By Raymond B. Ladoo

    Talc is a hydrous magnesium silicate having the chemical formula H2Mg3 (SiO8 ) 4 ; it is often called steatite, soapstone or potstorie, and by the trade names talc clay, agalite, asbestine, and verdol

    Jan 1, 1923

  • IIMP
    Los parámetros mineros en el primer bimestre de 2017 y las perspectivas para el corto plazo

    By Amado Yataco

    El presente texto describe un cuadro comparativo sobre la producción minera comprendida entre el período de enero-febrero 2017 y 2016. En este se observa un déficit reiterativo en oro, plata, plomo y

    May 1, 2017

  • NIOSH
    OFR-40-72 Research In Advanced Power Systems For Mining Health And Safety

    By E. S. Chalpin

    On 25 August 1971, the U.S. Bureau of Mines contracted with the Aerojet Liquid Rocket Company to perform an engineering research program to be completed on 25 May 1972. The program objective was to ev

    Jan 1, 1972

  • AIME
    Austenite And Austenitic Steels

    By John Mathews

    IT is a great honor to be asked by. the Board of Directors of this Institute to deliver the Henry Marion Howe lecture. The invitation carries with it a great responsibility, which I accept with consid

    Jan 4, 1925

  • NIOSH
    OFR-158-83 Develop Data For Review Of Metal And Non-Metal Mine Methane Hazard Classification

    By Alastair M. Lumsden

    A study was initiated to examine the ways in which a number of foreign countries classify and regulate metal/non-metal mines which experience problems due to naturally-occurring flammable gases. Twent

    Jan 1, 1983

  • NIOSH
    Bulletin 115 Coal-Mine Fatilities in the United States

    By Albert H. Fay

    The first data compiled by the Bureau of Mines relating to coal- mine accidents in the United States were published in Bulletin 69," in which the total fatalities by years and States were tabulated fr

    Jan 1, 1916

  • CIM
    Emplacement Features of Cupriferous Noritoids in the Okiep Copper District, Namaqualand, South Africa

    By Michael K. Watkeys, Charlesworth. E. GUY, Jacobus E. Potgieter, Anhaeusser. Carl R., Roger L. Gibson, Alexander F. M. Kisters

    Abstract - Intrusive features of cupriferous noritoids from the deeply eroded Proterozoic granite-gneiss terrane of the Okiep Copper District in South Africa illustrate the emplacement of basic magmas

    Jan 1, 1994

  • AIME
    Preparing and Recording Samples for Use in Technical Assay-Laboratories

    By Louis D. Huntoon

    AFTER the completion, in 1905, of the Hammond Mining and Metallurgical Laboratory of the Sheffield Scientific School, Yale University, it became necessary to secure and assay a large assortment of ore

    Nov 1, 1909

  • NIOSH
    IC 8913 Dolomite Refractories, And Their Potential As Substitutes For Imported Chromite

    By Timothy A. Clancy

    To help reduce the Nation's dependence on imported chromite, the Bureau of Mines is conducting research on the use of dolomites as an alternate material. Dolomite is a plentiful domestic resource

    Jan 1, 1983

  • NIOSH
    RI 4776 The Oil-Shale Industries Of Europe

    By Boyd Guthrie

    As the American petroleum industry surveyed its position in early 1937, it had many reasons to be optimistic concerning its future. The industry had emerged successfully from the depression, and for t

    Jan 1, 1951

  • CIM
    Strain Distribution in the Bending-Under-Tension Test

    By D. K. Uko

    In the stretch-bend or bending-under-tension test, a strip is rigidly clamped and restrained at each end and bent by central transverse loading using a radiused punch: The strip deflection at failure

    Jan 1, 1977

  • NIOSH
    RI 7221 Beneficiation Of Titanium Chlorination Residues - Preliminary Study

    By C. C. Merrill

    The Bureau of Mines beneficiated the wastes generated by commercial titanium chlorination operations to reclaim metal values and reduce the problem of disposing of solid wastes. A water leach solubili

    Jan 1, 1969

  • SME
    Stress control methods help to optimize underground mine design

    By Mark Lawshe, Shosie Serata

    The conventional method of mining underground, using narrow rooms and wide pillars, has proven to be poorly adapted to the powerful earth forces that act on underground openings. The high costs of roo

    Jan 1, 1989

  • AIME