Technical Report Archive & Image Library (TRAIL) - 35 Matching Results

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Contributions to Economic Geology (Short Papers and Preliminary Reports), 1911: Part 1 -- Metals and Nonmetals Except Fuels

Description: From introduction: The growing economic importance of the Carrville district, Trinity County, California merits notice, and it is hoped that this brief report will direct attention toward it, to the end that mining in general may be benefited.
Date: 1913
Creator: Lindgren, Waldemar
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Recurrent Tropidoleptus Zones of the Upper Devonian in New York

Description: From introduction: This report describes the four zones, three well-marked and one subordinate, in the Upper Devonian rocks, each of which contained several species that are common in the typical Hamilton formation of the Cayuga Lake section and are associated with very few of the really characteristic species of the faunas normal to the formations in which they are found.
Date: 1913
Creator: Williams, Henry Shaler
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Abstracts of Current Decisions on Mines and Mining: October, 1912 to March, 1913

Description: Bulletin issued by the U.S. Bureau of Mines. From the Preface: "This publication is devoted exclusively to a review and abstracts of decisions based on the laws governing the rights and duties of mine owners, operators, miners, and persons trafficking in all kinds of mining properties. It includes abstracts of current decisions of all the Federal and State courts of last resort on questions relating to the mining industries" (p. 9).
Date: 1913
Creator: Thompson, J. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Foundry-Cupola Gases and Temperatures

Description: From Introduction: "Among the investigations that the Bureau of Mines is conducting with a view to increasing efficiency in utilization of fuels belonging to or for the use of the Government is an investigation of the processes that take place in a foundry cupola during a melt."
Date: 1913
Creator: Belden, A. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A Laboratory Study of the Inflammability of Coal Dust

Description: From Introduction: "Much knowledge has been gained from the work done in the large galleries constructed at official and semiofficial stations in this country and abroad, but the study of the coal-dust problem in these galleries requires so much time and is so costly that there is a need of a reliable laboratory method for obtaining a classification if the great variety of dusts that occur in mines. The investigation described in this paper was an attempt to devise such a method."
Date: 1913
Creator: Frazer, J. C. W.; Hoffman, E. J. & Scholl, L. A., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Ignition of Mine Gases by the Filaments of Incandescent Lamps

Description: From Introduction: "As part of the investigations of the cause of mine accidents and of the safest and most efficient methods of handling electricity underground, the Bureau of Mines undertook a study of ignition of mine gases by the filaments of electric incandescent lamps. This bulletin describes the investigation in detail and gives a complete record of the results obtained."
Date: 1913
Creator: Clark, H. H. & Ilsley, L. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Selection of Explosives used in Engineering and Mining Operations

Description: From General Statement: "This bulletin deals with the characteristic features of the principal explosives used in mining and engineering operations, and especially with the tests that show the suitability of different classes of explosives for different kinds of work."
Date: 1913
Creator: Hall, Clarence & Howell, Spencer P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Tests of Permissible Explosives

Description: From Introduction: "A copy of the test requirements and the names of explosives on the permissible list dated March 1, 1913, are appended to this bulletin. An explosive is considered permissible for use in coal mines when it is similar in all respects to the sample that passed the tests required by the bureau, and when it is used in accordance with the conditions prescribed."
Date: 1913
Creator: Hall, Clarence & Howell, Spencer P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Electric Switches for use in Gaseous Mines

Description: From Introduction: "The purpose of the investigation discussed in this bulletin, one of a series dealing with the use of electricity in mines, was to study the various means and methods used to confine the flashes that occur when a switch carrying electric current is opened."
Date: 1913
Creator: Clark, H. H. & Crocker, R. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Coal-Mine Accidents in the United States and Foreign Countries

Description: From Introduction: "The lack of comparable and accurate statistics of coal-mine accidents in the united States as a whole led the Bureau of Mines in 1911 to undertake the collection of such data. The mining departments of the leading foreign coal-producing countries have long taken cognizance of the importance of statistics. The bureau feels that in presenting the tables embodied in this report it is offering the and comparable statistics of coal-min accidents for the country as a whole that ha… more
Date: 1913
Creator: Horton, Frederick W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Fuller's Earth

Description: For Introduction: "For these reasons an investigation of the mining, preparation, and use of fuller's earth in this country, especially in its application to edible oils, was conducted in order to ascertain why our own raw material has been deemed inapplicable to our needs."
Date: 1913
Creator: Parsons, Charles L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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National Mine-Rescue and First-Aid Conference: Pittsburgh, Pennsylvania, September 23-26, 1912

Description: From Introduction: "It this report endeavor has been made to eliminate all unnecessary remarks; but in order that those who hold diverging views regarding the subjects discussed may have before them the arguments that led the conferees to vote for the 36 resolutions adopted, the discussion had in the committees and in open session is published practically in full. Moreover, for the information of those mining officials, operators, and surgeons who are unfamiliar with approved methods of first-a… more
Date: 1913
Creator: Wilson, Herbert M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Sampling Coal Deliveries and Types of Government Specifications for the Purchase of Coal

Description: From Introduction: "Therefore the method of taking and preparing samples for shipment to the laboratory has been given fully as much care as the making of the analyses and tests, and a general plan of collecting samples fairly representative of the delivered coal has been evolved through various modifications and improvements based on experience and increased knowledge of the physical and chemical characteristics of the various coals that are purchased by the Government. The method that is in g… more
Date: 1913
Creator: Pope, George S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Titaniferous Iron Ores in the United States: Their Composition and Economic Value

Description: From Introduction: "The summer of 1911 was spent in visiting the principal localities in the United States at which titaniferous iron ores occur, for the purpose making systematic collections of material. The following winter was spent in a study of the collected material in the geological laboratory of the John Hopkins University where the author contained as a Johnston scholar. This report is an account of the results obtained."
Date: 1913
Creator: Singewald, Joseph T., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Oil and Gas Wells through Workable Coal Beds: Papers and Discussions

Description: From Preface: "In carrying out such a policy with reference to the subject under consideration, the Bureau of Mines invited the State geologists, mine inspectors, and a number of coal operators and oil and gas well drillers from the States interested to meet representatives of the Bureau of Mines in Pittsburgh, Pa., for a discussion of the subject during February 7 and February 8, 1913. This adjourned meeting of the conference will be held at an early date and its report will be printed in a la… more
Date: 1913
Creator: Rice, George S. & Hood, O. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Origin of Coal

Description: From Introduction: "The purpose of the studies that form the basis of this report was to learn from microscopic examinations of coal how far and in what ways the grouping of coal by types depends on differences in the kinds of plant material from which it was formed and on the conditions of its accumulation, or how far the special characters or qualities of coal of any type were determined by the nature and the state of the plate debris from which the coal was formed."
Date: 1913
Creator: White, David & Thiessen, Reinhardt
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Sampling and Examination of Mine Gases and Natural Gas

Description: Report by the U.S. Bureau of Mines based on experiments performed in Pittsburgh, Pennsylvania to study mine gases. Findings in this bulletin include descriptions of the experiments and equipment used: "The first part of this report deals with the methods used by the bureau in the collection and examination of the various mine gases; the latter part discusses the bureau's methods of sampling and examining natural gas" (p. 5).
Date: 1913
Creator: Burrell, George A. & Seibert, Frank M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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