Search Documents

Search Again

Search Again

Sort by

  • NIOSH
    IC 6708 Diamond Drilling At The United Verde Mine ? Introduction

    By Mayer G. Hansen

    A series of papers dealing with diamond drilling practices, compiled in accordance with an outline prepared by engineers of the United States Bureau of Mines, is to be published as information circula

    Jan 1, 1933

  • NIOSH
    IC 6714 Flotation Processes For Cleaning Fine Coal ? Introduction

    By H. H. Yancey

    In this information circular is presented a summary of the more important articles that nave appeared in the literature pertaining to the experimental work and to the commercial operation of the froth

    Jan 1, 1933

  • NIOSH
    IC 6727 Factors And Conditions That Aid In Alinement Of Pillar Extraction Lines In Coal Mining ? Importance Of Pillar Recovery

    By J. N. Geyer

    During the early stages of the mining industry of the United States an apparently inexhaustible supply of high-quality, easily accessible coal made the product cheap and the attendant mining methods w

    Jan 1, 1933

  • NIOSH
    IC 6729 Manganese - General Information ? Introduction

    By Robert H. Ridgway

    This circular outlines salient facts regarding the manganese-ore industry in the United States and the world. It is founded chiefly upon published information available in the literature of the subjec

    Jan 1, 1933

  • NIOSH
    IC 6733 Evolution of Methane-Detecting Devices for Coal Mines

    By A. B. Hooker, L. C. IlsLey

    The greatest hazard of early mining was from explosions of methane ignited by open lights . With the advent of safety lamps and forced ventilation this hazard was greatly reduced until the application

    Jun 1, 1933

  • NIOSH
    IC 6737 Petroleum And Natural-Gas Studies Of The United States Bureau Of Mines

    By H. C. Fowler

    The social economy, or public interest, and national defense require wise development and efficient use of the oil and gas resources of the United States. In this development and use, and in the preve

    Jan 1, 1933

  • NIOSH
    IC 6739 Milling Methods And Costs At The Golden Cycle Mill, Colorado Springs, Colo. ? Introduction

    By L. S. Harner

    This paper which describes the milling practice at the Golden Cycle mill is one of a series of similar papers being prepared by the United States Bureau of Mines. The mill of the Golden Cycle Corp

    Jan 1, 1933

  • NIOSH
    IC 6740 Economic Aspects of Gold and Silver

    By Scott Turner

    The monetary metals , gold and silver , have recently been the object of such general interest that the United States Bureau of Mines has received many inquiries regarding them . Though requests for t

    Jul 1, 1933

  • NIOSH
    IC 6757 Review Of Fine Grinding In Ore Concentrators ? Introduction

    By Alexander M. Gow

    This paper summarizes a survey of fine-grinding practice in ore-concentrating plants throughout the United States, Alaska, Canada, Mexico, and Cuba as reported in the Bureau of Mines Information Circu

    Jan 1, 1933

  • NIOSH
    IC 6767 Use Of Airplanes In Mining And Petroleum Operations ? Introduction

    By Hugh M. Wolfin

    This Information Circular is an abstract of a manuscript which was completed in June 1933, by Mr. Hugh M. Wolflin, formerly of the U. S. Bur eau of Mines. This abstract has been prepared by Charles Wi

    Jan 1, 1934

  • NIOSH
    IC 6768 Manganese Its Occurrence, Milling, and Mefallurgy. Part I

    By Will H. Coghill, Fred D. DeVaney, R. S. Dean

    Part I CONTENTS

    May 1, 1934

  • NIOSH
    IC 6770 Manganese Its Occurrence, Milling, and MetalIurgy. Part III

    By Edmund S. Leaver, R. S. Dean, T. L. Joseph

    The metallurgy of manganese has developed along the lines of iron metal¬ lurgy. Enough high-grade ore has Been available so that by reduction with carbon it could be turned into an iron-ma.nga.nese al

    May 1, 1934

  • NIOSH
    IC 6784 Ore-Dressing Bibliography, 1931-32 ? Introduction

    By T. H. Miller

    An attempt has been mace in this publication to present annotated references to all articles pertaining, to ore dressing that were published during 1931 and 1932; in a few instances reference is made

    Jan 1, 1934

  • NIOSH
    IC 6786 Placer Mining In The Western United States - Part I. General Information, Hand-Shoveling, And Ground-Sluicing ? Introduction

    By E. D. Gardner

    Placer mining is the mining and treatment of alluvial deposits for the recovery, of their valuable minerals. The method has been used principally for mining gold, but a large proportion of the world&a

    Jan 1, 1934

  • NIOSH
    IC 6787 Placer Mining In The Western United States - Part II. Hydraulicking, Treatment Of Placer Concentrates, And Marketing Of Gold ? Introduction

    By E. D. Gardner

    This paper is the second of a series of three on placer mining in the western United States. The first paper4 discusses the history of placer mining in the Western States and the production of placer

    Jan 1, 1934

  • NIOSH
    IC 6788 Placer Mining In The Western United States - Part III. Dredging And Other Forms Of Mechanical Handling Of Gravel, And Drift Mining ? Introduction

    By E. D. Gardner

    This paper is the third of a series of three on placer mining in the western United States. The first paper4 discusses the history of placer mining in the Western States and the production of placer g

    Jan 1, 1934

  • NIOSH
    IC 6790 Asbestos-Domestic and Foreign Deposits

    By Oliver Bowles

    The United States has never attained importance as a producer of asbestos, the domestic output being only 1 to 3 percent of the quantity required to supply raw material for its extensive asbestos-prod

    Jun 1, 1934

  • NIOSH
    IC 6800 Mining And Milling Practices At Small Gold Mines ? Introduction

    By E. D. Gardner

    This paper discusses small-scale lade gold mining and milling. It is abstracted from a bulletin being prepared by the United States Bureau of Mines entitled "Equipping, Developing, and Operating Small

    Jan 1, 1934

  • NIOSH
    IC 6814 Sand And Gravel Excavation; Part 2: Power Scraper, Slackline Cableway Excavator, And Hydraulic Giant ? Introduction

    By J. R. Thoenen

    This circular is part 2 of the third subject (entitled "Excavation") of a series summarizing; the technical problems involved in the production and preparation of sand and gravel. Part 1 discussed the

    Jan 1, 1935

  • NIOSH
    IC 6815 Mining Operations At The Property Of The Britannia Mining & Smelting Co., Ltd., Britannia Beach, British Columbia ? Introduction

    By C. V. Brennan

    This paper, describing the various mining methods and practices at Britannia mines, Britannia Beach, British Columbia, is one of a series covering mining practices, methods, and costs in the mining di

    Jan 1, 1935