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  • NIOSH
    Bulletin 57 Safety and Efficiency in Mine Tunneling

    By John A. Davis, David W. Brunton

    During the past few years great progress has been made in the United States toward safer, more efficient, and more economical tunneling methods. This advance is partly due, no doubt, to the recent inc

    Jan 1, 1916

  • NIOSH
    Mineral Indicators By Region

    New Copper Deposit in Chile. - The recent copper discovery in Chile, made jointly by U.S.-owned Empresa Minera Utah de Chile, Inc., and Getty Mining Chile), Inc., awaits the passage of Chilean legisla

    Jan 1, 1981

  • NIOSH
    Review Of Literature On Dusts - Introduction

    By J. J. Forbes

    Problems connected with the incidence, effects, determination, and control of dusts are still much before the public, although more information is available to the layman than when Bulletin 400, of wh

    Jan 1, 1950

  • NIOSH
    OFR-25(2)-74 Improved Sensors And Fire Control Systems For Mining Equipment - Phase II - Final Report - Executive Summary - I. Introduction, Summary, And Results - Introduction

    U.S. Bureau of Mines contract H0122053, "Improved Sensors and Fire Control Systems for Mining Equipment", was an investigative effort involving: ? Study of the fire problem on large mobile mining e

    Jan 1, 1973

  • NIOSH
    IC 6314 Milling Methods And Costs At The Northern Idaho Mills Of The Bunker Hill And Sullivan Mining And Concentrating Co. ? Introduction

    By R. S. Handy

    This paper describing the milling practices at tae concentrators of the Bunker Hill and Sullivan Mining and Concentrating Co. is one of a series being prepared by the United States Bureau of Mines on

    Jan 1, 1930

  • NIOSH
    RI 3711 Increasing Pig Iron Output Through Improved Coke

    By L. D. Schmidt, W. C. Schroeder, A. C. Fieldner

    "INTRODUCTION The highly mechanized character of modern warfare makes steel the most vital raw material. The shortage of steel scrap in the United States is forcing the use of increased quantities of

    May 1, 1943

  • NIOSH
    Mineral Indicators - Alumina

    Kaiser Aluminum & Chemical Corp. announced that it planned to spend $66 million to increase the efficiency of its Baton Rouge, Louisiana, alumina plant. The improvements are designed to reduce energy

    Jan 1, 1978

  • NIOSH
    Mineral Indicators - Aluminum: (f9f69cad-787c-44c8-8d38-3c81f9a69249)

    Since early July, domestic producer listings in primary aluminum ingot have been at 53¢ per pound. Dealers, however, lowered their August quotes by 1.8¢-2¢ to 47.5¢-48¢ per pound. BITUMINOUS COAL

    Jan 1, 1977

  • NIOSH
    Bulletin 40 The Smokeless Combustion of Coal in Boiler Furnaces

    By D. T. Randall, H. W. Weeks

    The burning of coal without smoke is a problem that concerns the Government directly because of the advantages of smokeless combustion both in public buildings and on naval vessels. In addition, smoke

    Jan 1, 1912

  • NIOSH
    OFR-24-77 Mine Shaft Fire And Smoke Protection System - Final Report - Volume I - Design And Demonstration - Executive Summary - Introduction

    This report presents information developed during Bureau of Mines contract H0242016, "Mine Shaft Fire and Smoke Protection Systems" from May, 1974 through June, 1975. Purpose of the metal and nonmetal

    Jan 1, 1975

  • NIOSH
    IC 8213 Refractory Clay Deposits Of Utah (c6c3ab65-2c6d-433f-a93c-fe37e2e66c60)

    By Joel N. Van Sant

    An investigation was conducted to study possible sources of Utah refractory and structural clays that could be used for the manufacture of refractories and light or buff burning heavy-clay products. A

    Jan 1, 1964

  • NIOSH
    Mineral Indicators - Bituminous Coal And Lignite:

    Wildcat strikes in the Appalachian coal fields, primarily in West Virginia, have resulted in an estimated 4.5 million ton loss in coal production during July and through the first week in August. Sinc

    Jan 1, 1977

  • NIOSH
    IC 9113 Evaluation Of Selected Lode Gold Deposits In The Chugach National Forest, Alaska

    By Robert B. Hoekzema

    This Bureau of Mines report describes the history, characteristics, distribution, and mineral development potential of 21 lode gold deposits in or near the Chugach National Forest (CNF), AK. It includ

    Jan 1, 1987

  • NIOSH
    Bulletin 201 Prospecting and Testing for Oil and Gas

    By R. E. Collom

    The commercial development of petroleum and natural gas fields has reached its present status within 60 years and is still considered by some operators to be "100 per cent wildcatting." 1 A tendency t

    Jan 1, 1922

  • NIOSH
    Bulletin 21 Significance of Drafts in Steam Boiler Practice

    By Henry Kreisinger, WALTER T. RAY

    This preliminary bulletin was written as the first of a series of several on the significance of drafts in steam-boiler practice, the succeeding bulletins to be along the same lines but of a more adva

    Jan 1, 1911

  • NIOSH
    IC 6116 Petroleum Refineries In The United States January 1, 1929 ? Introductory Summary

    By G. R. Hopkins

    According to reports received by the Bureau of Mines, Department of Commerce, as of January 1, 1929 there were 413 completed refineries in the United States, with a total daily crude-oil capacity of 3

    Jan 1, 1929

  • NIOSH
    IC 8624 A Computer Program For Clustering Data Points On The Sphere

    By Robert J. Shanley

    The computer program, HYBMODE, has been developed to meet the need for a fast and economical method for clustering data points on the sphere. The algorithm used in this development is an extension of

    Jan 1, 1974

  • NIOSH
    OFR-153-77 Technical And Economic Feasibility Surface Mining Coal Deposits North Slope Of Alaska

    This Kaiser Engineers report on the feasibility of surface mining on the North Slope of Alaska has considered the quantity and quality of the North Slope deposits with attention paid to the economic,

    Jan 1, 1977

  • NIOSH
    RI 4861 Electrolytic Manganese Tests In Cooperation With Industry

    By Jr. Sillers

    To prove to .the satisfaction of all concerned that electrolytic manganese from our low-grade domestic ores could be substituted satisfactorily for ferro-manganese made from high-grade foreign fires,

    Jan 1, 1952

  • NIOSH
    The National Economy In The Third Quarter

    By Keith L. Harris

    The U.S. economy continued to grow moderately in the third quarter, but at a slightly higher rate than in the previous quarter. According to the Department of Commerce's preliminary estimate, rea

    Jan 1, 1985