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  • NIOSH
    RI 4451 Investigation Of Pickering Creek Lead-Zinc Deposits Chester County, Pa.

    By Donald F. Reed

    In its program of investigation of deposits of strategic minerals, the Bureau of Mines did some development drilling from October 1247 to March 1948 at the Pickering Creek deposits, Charter County, Pa

    Jan 1, 1949

  • NIOSH
    RI 2164 Oil Pipe Lines

    By C. P. Bowie

    "It is well known by all who are familiar with the oil industry in America that the oil pipe line is as fundamentally a part of this industry as the railroad is of most other American industries. The

    Sep 1, 1920

  • NIOSH
    RI 6446 Thermodynamic Data for Columbium (Niobium) Carbide

    By K. K. Kelley, L. B. Pankratz, W. W. Weller

    The heat capacity of columbium (niobium) carbide (CbC ) was measured over the temperature range from 51 ° to 298 ° K, and the entropy at 298.15° K was evaluated . Also , the heat content above 298.15

    Jan 1, 1964

  • NIOSH
    RI 7423 Effect Of Fuel Composition On Exhaust Emissions From A Spark-Ignition Engine

    By R D. Fleming

    A single-cylinder research engine was operated on pure hydrocarbons and simple (two-component) mixtures of pure hydrocarbons to study the effect of fuel composition on exhaust emissions from a spark-i

    Jan 1, 1970

  • NIOSH
    Water Spray Vent Tube Cooler For Hot Stopes - A Preliminary Report

    By Edward D. Thimons

    As U.S. mines go to greater depths, the high temperatures and humidities characteristic of such depths make it difficult to maintain a comfortable environment in working areas. Better techniques for c

    Jan 1, 1979

  • NIOSH
    RI 3011 A Study Of The Marshall-Bird Test For Determining The Agglutinating Value Of Coal

    By K. A. Johnson

    Marshall and Bird have published the results of a cooperative investigation by the Bureau of Mines in which they developed a procedure for measuring the agglutinating value of coal.4 As stated in thei

    Jan 1, 1930

  • NIOSH
    RI 3797 Microseismic Method of Predicting Rock Failure in Underground Mining - Part 1. - General Method

    By Wilber Duvall, Leonard Obert

    "INTRODUCTION This report is the first of four to be presented on the microseismic method 4/ of predicting rock failure in underground mining. The application of the microseismic method to one specifi

    Feb 1, 1945

  • NIOSH
    RI 8887 - Electrolytic Stripping of Tin in an Acid Fluoborate Electrolyte

    By J. G. Groetsch

    Municipal solid waste (MSW) contains about 8 pct ferrous metallics which are typically recovered by magnetic separators at municipal resource recovery facilities. At present, only about 182,500 ton/yr

    Jan 1, 1984

  • NIOSH
    Joystick Tram Control For Tracked Vehicles ? Objective

    To improve safety by making speed and direction control of a tracked vehicle simpler and instinctive. Approach A joystick control (which determines vehicle speed and direction of movement as w

    Jan 1, 1978

  • NIOSH
    RI 3270 Survey of Fuel Consumption & Refineries, 1933

    By G. R. Hopkins

    "Summary An apparent decline in fuel efficiency at refineries, which first became came evident in 1930 and continued through 1933, was checked in 1933 when the average amount of heat needed to refine

    Feb 1, 1935

  • NIOSH
    RI 6339 compressive strength versus

    By Robert T. Beckman

    The results of a preliminary investigation of compressive strength versus length-diameter (L/D) ratios of potash specimens and the statistical treatment of the data are summarized in this report. The

    Dec 1, 1963

  • NIOSH
    OFR-41-87 Formation Of Titanium Powder By Potassium Reduction Of Titanium Salts

    By Donna D. Harbuck

    The Bureau of Mines has investigated a process to produce titanium powder directly from titanium salts. If successful, such a process could lower the cost and increase the use of titanium. In this stu

    Jan 1, 2011

  • NIOSH
    OFR-113-76 Characteristics Of An Acoustic Coupler For Use In An Audio Dosimeter Calibrator

    By David N. Montgomery

    The characteristics of a closed cavity acoustic coupler were measured. Various configurations were investigated to determine their feasibility for use in a portable audio dosimeter calibrator.

    Jan 1, 1976

  • NIOSH
    Technology News - No. 539 - Identifying the Benefits of Engineering Noise Controls Through a Business Case

    To develop a business case that promotes adoption of noise controls by reducing barriers to industry acceptance and enhancing drivers that foster their implementation. Background Over 75% of

    Dec 1, 2009

  • NIOSH
    RI 2991 Cracking Natural Gas In Water-Gas Generators With Recovery Of Carbon Black

    By Wm. W. Odell

    This report comprises a brief outline of the experimental cracking of natural gas in a water-gas generator at Louisville, Kentucky, and a discussion of the results obtained. The work was done under a

    Jan 1, 1930

  • NIOSH
    IC 6462 Methods And Costs Of Mining Quicksilver Ore At The New Idria Mine, San Benito County, Calif. - Introduction

    By W. R. Moorehead

    This paper, describing the mining methods and colt at the New Indria quicksilver mine, is one of a series of similar papers being prepared by the Bureau of Mines on various mines in the United States.

    Jan 1, 1931

  • NIOSH
    RI 8548 An Apparatus and Procedure for Calibrating a Water Vapor Analyzer in the 0.1-to 15-ppm Range

    By Harold L. Rhodes

    The Bureau of Mines has developed a quantitative method to determine water vapor in helium in the range of 0.1 to 15 ppm by volume. This method uses the quantitative chemical reaction of H20 with CaH2

    Jan 1, 1981

  • NIOSH
    IC 7962 Recommended Standards For Alternating Current In Coal Mines

    Although alternating-current (a.-c.) power systems and equipment have been used in coal mining for many years, most mines in the United States are powered mainly by direct current (d.-c.). There are s

    Jan 1, 1960

  • NIOSH
    RI 5796 Titanium-Gadolinium Phase Diagram ? Summary

    By J. G. Croeni

    The high thermal-neutron cross section of gadolinium and the good mechanical and corrosion properties of titanium suggest that alloys of these two metals might be useful as control rod material. To ai

    Jan 1, 1961

  • NIOSH
    Improved Dust Control For Bag Handlers - On-Site Tests Lead To Minor Modifications To A Bag-Palletizing System That Significantly Reduce Workers' Dust Exposure

    By Jeanne A. Zimmer, Brad Smith, Steve Viles, Andrew B. Cecala

    A recent report evaluating silica exposure levels in the metal/nonmetal mining industry noted that bag packaging and loading are some of the occupations at the greatest risk. In addition to dust probl