Search Documents

Search Again

Search Again

Refine Search

Publication Date
Clear

Refine Search

Publication Date
Clear
Organization
Organization
  • NIOSH
    Prereduced Iron Ore Pellets: Preparation, Properties, Utilization

    By M. M. Fine

    A process for simultaneously reducing and indurating iron are pellets was developed by Bureau of Mines laboratory research and confirmed on a continuous pilot plant basis. Moist iron are concentrate w

    Jan 1, 1970

  • NIOSH
    RI 7659 Lowering The Tin Content Of Secondary Leaded Tin-Bronze By Replacement With Lead Or Zinc

    By E. R. Cole

    Laboratory heats of an 80 percent copper high-leaded tin-bronze alloy, similar to Brass and Bronze Ingot Institute (BBII) alloy 3A, were made with reduced tin content to determine whether an alloy com

    Jan 1, 1972

  • NIOSH
    OFR-114-85 Development Of A Roof Competence Tester

    By J. B. Czirr

    MESA Corporation has completed a four-year program for the Bureau of Mines to develop a technique for measuring roof competence in underground coal mines. The preferred technique employs a tracer gas

    Jan 1, 1985

  • NIOSH
    OFR-26-86 Development Of The Claw Hammer Scaling Tool

    By James D. Eklund

    Towards the goal of improving safety, economy and efficiency of scaling in underground metal/nonmetal mines, Battelle developed a combination prying/hammering scaling tool. A prototype was subject

    Jan 1, 1983

  • NIOSH
    RI 7761 Physical Aspects Of Copper Cementation On Iron

    By Walter W. Fisher

    A study of copper cementation on iron was initiated to determine the effect that deposited copper has upon subsequent cementation. A microscopic investigation of cementation on an iron surface showed

    Jan 1, 1973

  • NIOSH
    OFR-47(10)-83 Ecological Studies On The Revegetation Process Of Surface Coal Mined Areas In North Dakota - 10. Elements Of Macro- And Microclimate

    By Richard H. Bares

    The general or macroclimate of the study sites in western North Dakota is characterized by rapid and sometimes extreme daily and day-to-day temperature fluctuations, rainfall patterns which are errati

    Jan 1, 1982

  • NIOSH
    OFR-83B-92 Hoisting System Components - Selection And Guidelines - Volume 2

    The objective of this study was two-fold: 1. To perform a world literature search pertinent to the analysis, selection and design of hoisting systems and their components and to codify the search i

    Jan 1, 1988

  • NIOSH
    RI 7902 Spark-Shower Radiance of Metal Grinding Sparks

    By John E. Kelley

    A method for measuring the spark-shower radiance of metals when abraded on a grinding wheel was developed by the Bureau of Mines for evaluating the sparking tendency of metals. The radiance was measur

    Jan 1, 1974

  • NIOSH
    RI 7298 Effect Of Increasing End Constraint On The Compressive Strength Of Model Rock Pillars

    By Clarence O. Babcock

    Model pillars of limestone, marble, sandstone, and granite with length-to-diameter (L/D) ratios of 3, 2, 1, 0.5, and 0.25 (0.286 for granite) were tested to failure in axial compression to determine t

    Jan 1, 1969

  • NIOSH
    OFR-130-81 Dust Control For Haul Roads

    By Russel Bohn

    The purpose of this study was to evaluate the various techniques far mine roadway dust control. This evaluation included (a) the types of dust suppressants available, (b) the interaction of these prod

    Jan 1, 1981

  • NIOSH
    RI 7165 Miniature Bilevel Alarm For Oxygen-Deficient Atmospheres

    By Robert A. Bradburn

    The Bureau of Mines has developed a miniature, portable two-level oxygen-deficiency alarm and produced three prototype models. Each operates from a 4.2-v dc power source, and the highest current drain

    Jan 1, 1968

  • NIOSH
    OFR-67-73 Permissible Automatic Data Acquisition System - Section I - Introduction

    By G. P. Houston

    This is the final, report submitted for the Contract No. H0220002 with the U. S. Bureau of Mines for the design and development of a Permissible Automatic Data Acquisition System (PADAS) to measure an

    Jan 1, 1973

  • NIOSH
    IC 7930 Mining Methods And Costs At The Piokee Mining Unit And The Piokee Experimental Mining Project, The Eagle-Picher Co. (Tri-State Mines), Ottawa County, Okla. ? Introduction And Summary

    By J. B. Elizondo

    This paper, which describes mining methods and practices at the Piokee mining unit and the Piokee expertmental mining project of The Eagle-Picher Co. in northeast Oklahoma, is one of a series being pr

    Jan 1, 1959

  • NIOSH
    OFR-80(2)-81 Selective Interburden Handling Techniques - Volume II - Appendices

    By Robert L. Lappi

    Eight interburden handling concepts are developed for multiple seam area mine stripping operations in central and western United States. They are based on data gathered and analyzed during field surve

    Jan 1, 1980

  • NIOSH
    MLA 10-87 - Mineral Resources Of The South Jackson Mountains Wilderness Study Area, Humboldt County, Nevada

    By Michael M. Hamilton

    In 1984 and 1985 the U.S. Bureau of Mines performed a mineral survey of the South Jackson Mountains Wilderness Study Area covering 60,211 acres of mountainous terrain of Humboldt County in northwester

    Jan 1, 1987

  • NIOSH
    RI 6025 Experimental Production Of Lightweight Basic Refractories

    By M. E. Tyrrell

    Lightweight basic refractories suitable for use in some sections of the all-basic furnace were developed. Potential advantages of such refractories are lower weight, improved resistance to thermal sho

    Jan 1, 1962

  • NIOSH
    RI 8764 Velocity and Orientation Effects on the 10-mm Dorr-Oliver Cyclone

    By Andrew B. Cecala

    The Bureau of Mines conducted a brief laboratory study on the 10-mm diam Dorr-Oliver nylon cyclone to investigate (1) whether high wind speed (>300 ft/min), or sampler inlet orientation with respect t

    Jan 1, 1983

  • NIOSH
    OFR-24(4)-84 Mining And Rock Mechanics Research In Oil Shale And Nahcolite, Horse Draw Shaft, Colorado - Appendix Volume A-2 Core Hole 1840-UG-3 Data

    During the period 1979 thru 1982, Multi Mineral Corporation conducted a mining research program at the United States Department of the Interior's Bureau of Mines Oil Shale Mining Environmental Re

    Jan 1, 1983

  • NIOSH
    OFR-113D-93 Coal Mine Injury Analysis: A Model For Reduction Through Training - Volume V: Mine Safety Management Case Studies

    By R. V. Ramani

    One area of study in the Coal Mine Injury Analysis project was to illustrate and enhance the ability o mine safety management personnel to apply analytical techniques to Injury experience data and to

    Jan 1, 1993

  • NIOSH
    OFR-139-83 Leaching Of Bornite With Oxygen And Ferric Chloride As Oxidants

    By Ferron A. Olson

    Natural bornite (Cu5FeS4) leached in ferric chloride or in sulfuric or hydrochloric acid solutions with oxygen showed several differences. In ferric chloride 80 of the copper was leached in two stages

    Jan 1, 1982