UNT Libraries Government Documents Department - 18 Matching Results

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Sources of Limestone, Gypsum, and Anhydrite for Dusting Coal Mines to Prevent Explosions

Description: From Preface: "The writer began testing the rock-dusting method for the Bureau of Mines at the Pittsburgh gallery in 1909, and later continued such testing in the bureau's experimental mine, with favorable results. Beginning in 1911 the bureau issued reports recommending rock dusting as alternative to watering."
Date: 1925
Creator: Bowles, Oliver
Item Type: Refine your search to only Report
open access

Mining and Preparing Domestic Graphite for Crucible Use

Description: From Prefactory Statement: "In this bulletin are presented the results obtained in the first two phases of the work outlined above. The bulletin is in two parts. The first part describes the methods of mining and milling used, suggests a standard method of sampling finished graphite, and describes a rapid and convenient method of analysis developed at the Pittsburgh station of the Bureau of Mines, to which has been assigned the analytical and microscopic work. The second part describes experime… more
Date: 1920
Creator: Dub, George D. & Moses, Frederick G.
Item Type: Refine your search to only Report
open access

Underground Ventilation at Butte

Description: From Introduction: "The officials of the North Butte mine we engage in making a study of ventilation problems before the coming of the investigators, so that opportunity was given to work with those officials for several months. This bulletin is a result of studies made from the data collected during the two and one-half years of study and observation above outlined."
Date: 1923
Creator: Harrington, Daniel
Item Type: Refine your search to only Report
open access

Regulation of Explosives in the United States: with Especial Reference to the Administration of the Explosives Act of October 6, 1917, by the Bureau of Mines

Description: From Origin of Federal Explosives Act, October 6, 1917: " A competent force from the Bureau of Mines was then assigned to study the laws and ordinances of countries, States, and municipalities in which lawas and ordinances regulating explosives have been enacted, and especially to ascertain how these laws had been modified by the necessities of the existing state of war, and, also, wherein the proposed law might conflict with or overlap the jurisdiction of existing laws. This incomplete enumera… more
Date: 1921
Creator: Munroe, Charles E.
Item Type: Refine your search to only Report
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Method and Cost of Mining the Thick Freeport Coal in a Second Western Pennsylvania Mine

Description: From introduction: The purpose of this paper is to present a detailed description of the methods employed and the equipment used, with the results obtained in the operation of this mine in the thick Freeport bed on the northern end of the field, near the Alleghegny-Butler county line in western Pennsylvania. It may be classed as a captive mine, as the largest portion of the product is consumed at the by-product plants of the parent company
Date: July 1929
Creator: Paul, James Washington & Tomlinson, H.
Item Type: Refine your search to only Report
open access

Stone Dusting or Rock Dusting to Prevent Coal-Dust Explosions, as Practiced in Great Britain and France

Description: From Introduction: "Coal dust as an agent of widespread explosions had been under suspicion, and watering to allay the dust was recommended by some mining engineers but the watering of coal-mine dust was adopted in comparatively few mines of the United States and Great Britain, and had not been introduced widely in any country except Germany. Rock dusting, another method of preventing explosions of coal dust, was early tested with success by the Bureau of Mines in its first gallery at Pittsburg… more
Date: 1924
Creator: Rice, George S.
Item Type: Refine your search to only Report
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Ocher and Ochery Earths

Description: Report about ocher or ochery earth, "a natural mineral pigment composed largely of clay permeated with hydrated iron (ferric oxide)" (p. 2). It includes information about the uses of choer, substitutes, artificial ocher, mining and local deposits, import and export of ocher, and related information.
Date: May 1929
Creator: Santmyers, R. M.
Item Type: Refine your search to only Report
open access

Pennsylvania Mining Statutes Annotated

Description: From Author's Explanation: "This bulletin is intended to include every legislative enactment of the Commonwealth of Pennsylvania relating to the mining and mineral industries. The entire body of mining laws is set out for these obvious reasons: (1) To show the progress and advancement made, and the changes through which the enactments have passed; (2) an author may not assume the determination of what particular laws are in fact in effect, as this is within the jurisdiction of the courts alone;… more
Date: 1920
Creator: Thompson, J. W.
Item Type: Refine your search to only Report
open access

Tests of Large Columns with H-Shaped Sections

Description: Report issued by the Bureau of Standards over studies conducted on h-shaped columns. Physical and chemical tests were conducted on different types of columns. The results are presented and discussed. This report includes tables, illustrations, and photographs.
Date: June 11, 1926
Creator: Tuckerman, L. B. & Stang, A. H.
Item Type: Refine your search to only Report
open access

Coal-Washing Investigations: Methods and Tests

Description: From Introduction: "The investigations described in this bulletin are confined to a study of the washing characteristics of bituminous coals. The washing characteristics of coals from many of the most important coal-producing fields of the Eastern and Central States were examined."
Date: 1929
Creator: Yancey, H. F. & Fraser, Thomas
Item Type: Refine your search to only Report
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