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

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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.
Partner: UNT Libraries Government Documents Department

Analyses of Coals in the United States with Descriptions of Mine and Field Samples Collected between July 1, 1904 and June 30, 1910: Part 1. -- Analyses

Description: From Significance and value of Analyses of Coal: "The analyses published in this report cover samples of coal collected in many different parts of the country with unusual care by experiences men, in such manner as to make them representative of extensive beds of coal."
Date: 1913
Creator: Lord, N. W.
Partner: UNT Libraries Government Documents Department

Analyses of Coals in the United States with Descriptions of Mine and Field Samples Collected between July 1, 1904 and June 30, 1910 Part 2. Descriptions of Samples

Description: From Introduction: "This volume contains the descriptions of the samples whose analyses are published in the preceding volume, Part I of this bulletin. The descriptions have been compiled from the notebooks of the persons who collected the samples, have been condensed from accounts given in published reports of the United States Geological Survey, or have furnished by the collection themselves. Inasmuch as the descriptions represent the work of many persons during a period of six years, and inasmuch as they were recorded under widely differing conditions, they necessarily vary in fullness detail."
Date: 1913
Creator: Lord, N. W.
Partner: UNT Libraries Government Documents Department

Analysis of Alternating-Current Waves by the Method of Fourier, with Special Reference to Methods of Facilitating the Computations

Description: Report issued by the Bureau of Standards over analysis of alternating currents. These currents are applied with the Fourier method. Descriptions of the method, and the results are presented. This report includes tables, and illustrations.
Date: 1913
Creator: Grover, Frederick W.
Partner: UNT Libraries Government Documents Department

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 have ever been published."
Date: 1913
Creator: Horton, Frederick W.
Partner: UNT Libraries Government Documents Department

The Commercial Trend of the Producer-Gas Power Plant in the United States

Description: From Introduction: "In investigating general problems that relate to the fuel resources of this country, and in testing fuels belonging to or for the use of the Government, the Bureau of Mines has given considerable attention to the efficiency and economic value of producer-gas power plants. This feeling of commercial decadence has become so general that the facts gleaned from an inspection of the summaries and charts presented in this bulletin will undoubtedly surprise those who have regarded the immediate downfall of the producer as inevitable."
Date: 1913
Creator: Fernald, R. H.
Partner: UNT Libraries Government Documents Department

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
Partner: UNT Libraries Government Documents Department

Density and Thermal Expansion of Ethyl Alcohol and of its Mixtures with Water

Description: Report issued by the Bureau of Standards over the thermal expansion of ethyl alcohol. As stated in the introduction, "the scope of the present work includes the preparation of pure anhydrous ethyl alcohol, the determination of the density and thermal expansion of this alcohol and its mixtures with water, and the construction from these data of tables for convenient use" (p. 328). This report includes tables, and illustrations.
Date: 1913
Creator: Osborne, N. S.; McKelvy, E. C. & Bearce, H. W.
Partner: UNT Libraries Government Documents Department

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.
Partner: UNT Libraries Government Documents Department

First Series of Coal-Dust Explosion Tests in the Experimental Mine

Description: From Introduction: "This report has been prepared, not only for the purpose of recoding the results of the first series of coal-dust tests conducted in the experimental mine of the Bureau of Mines, but also to place before the mining public a description of the mine and an account of the objects sought in an its establishment."
Date: 1913
Creator: Rice, George S.; Jones, L. M.; Clement, J. K. & Egy, W. L.
Partner: UNT Libraries Government Documents Department

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.
Partner: UNT Libraries Government Documents Department

Fuel-Briquetting Investigations, July, 1904, to July, 1912

Description: Report discussing a series of fuel-testing investigations that U.S. Geological Survey began in 1904 for the purpose of analyzing and testing the coals and lignites in the United States in order to determine their fuel values and the most efficient methods of utilizing them for different purposes. Types of tests undertaken included chemical analyses, steaming tests, gas-producer tests, briquetting tests, coking tests, and washing tests of samples collected from the various coals fields of the country. Bulletins presenting the results of these investigations have been periodically published but as supply has run out, the Bureau of Mines has decided to compile the most important facts of these bulletins in one volume along with the results of all other briquetting investigatins undertaken by the government from July 1, 1904, to July 1, 1912.
Date: September 1913
Creator: Wright, C. L.
Partner: UNT Libraries Government Documents Department

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.
Partner: UNT Libraries Government Documents Department

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.
Partner: UNT Libraries Government Documents Department

Investigations of Detonators and Electric Detonators

Description: From Introduction: "The conclusions are given in this bulletin, which is published by the Bureau of Mines as one of the series of publications dealing with the testing of explosives and the precautions that should be taken to increase safety and efficiency in the use of explosives in mining operations. The results of the experiments described in this bulletin show that the average percentage of failures of explosives to detonate was increased more than 20 per cent when the lower grades of electric detonators were used in instead of No. 6 electric detonators, and was increased more than 50 percent when these lower grades were used instead of No. 8 electric detonators."
Date: 1913
Creator: Hall, Clarence & Howell, Spencer P.
Partner: UNT Libraries Government Documents Department

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.
Partner: UNT Libraries Government Documents Department

Life Zones and Crop Zones of New Mexico

Description: Discusses geography, climate, agricultural practices, and crops of each life zone in New Mexico. Provides mammal, breeding bird, reptile, amphibian, and plant species list for each zone. Includes a life zone map.
Date: September 5, 1913
Creator: Bailey, Vernon
Partner: UNT Libraries Government Documents Department

Metallurgical Coke

Description: Technical paper issued by the Bureau of Mines over studies on metallurgical coke. As stated in the introduction, "in this paper the attempt is made to summarize the history of coke making in the United States, to indicate the development of different methods and the modern types of ovens, and to point out the composition and physical properties of the metallurgical cokes produced in this country" (p. 5). This paper includes tables, illustrations, photographs, and a map.
Date: September 1913
Creator: Belden, A. W.
Partner: UNT Libraries Government Documents Department

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-aid training and training with breathing apparatus and safety devices and methods of rescue, it seems equally desirable that the few opening addresses and closing remarks made it general session should be published as an expression of the reasons for such work and for the conference."
Date: 1913
Creator: Wilson, Herbert M.
Partner: UNT Libraries Government Documents Department