Technical Report Archive and Image Library (TRAIL) - 16 Matching Results

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Air traffic
This report presents a recounting of the steps taken by France to establish national and international regulation over air traffic.
Coal-Mine Accidents in the United States and Foreign Countries
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."
Coal Mining in Europe: A Study of Practices in Different Coal Formations and Under Various Economic and Regulatory Conditions Compared with Those in the United States
From Introduction: "The major purpose of this bulletin, as indicated in the preface by Dr. John W. Finch, Director of the Bureau of Mines, is to give a critical review of the coal-mining methods used in the principal producing countries of Europe, to describe the reasons underlying the adoption of these methods, and to contrast them with coal-mining methods employed in the United States."
Hydrogenation of Coal and Tar
From Abstract: "This bulletin traces the development of high-pressure, coal and tar hydrogenation technology, based on intensive review of the pertinent literature. The bulletin was written as a part of the Bureau of Mines research program on synthetic liquid fuels. It covers the history and economics of the process; the chemical aspect of hydrogenation of coal, tar, and middle oil; the engineer aspect of converting coal and tar to liquid fuels, principally gasoline; and the equipment of the process."
Index of Selected Gasification Patents (In Three Parts): [Part] 3. Belgian, French, German, Italian, and Swedish Patents
From Introduction: "The material is presented in three parts, as follows: III. Belgium, French, German, Italian, and Swedish Patents. Some of the Foreign Patents were collected at the same time and a few of them later in 1961."
An Index of Shale-Oil Patents
From Introduction: "Work on this project was begun early in 1944; and the results with respect to shale oil are reported in this Bulletin. Since this bulletin is only an index to this large repository of ideas relating to the the treatment of shale oil, the material is presented in the form of short notices describing the subject material of each patent, which consist of an abridgment of the patent (if British or Australian) or a typical claim in the case of the United States or foreign patents."
International Conference of Mine-Experiment Stations: Pittsburgh, Pennsylvania, U.S.A., September 14-21, 1912.
Report discussing an international conference on mine-experiment stations assembling in Pittsburgh, Pennsylvania. The United States sent invitations to countries that had mine-experiment stations, Great Britain and Canada were the only countries, that did not accept invitation.
Low-Temperature Carbonization of Coal
Technical paper issued by the Bureau of Mines over studies on low-temperature carbonization of coal. Methods and equipment used during the studies are discussed. This paper includes tables, illustrations, and photographs.
Mining Petroleum by Underground Methods: A study of Methods used in France and Germany and Possible Application to Depleted Oil Fields under American Conditions
From Introduction: "That the percentages of extraction of petroleum from the ground may and undoubtedly will be greatly increased in the future by underground mining methods where natural conditions will permit seems logical. The limitations imposed by depth, temperature, and flow of water under high pressure through the sands will be discussed later."
Ocher and Ochery Earths
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.
Potash Mining in Germany and France
From Scope of Bulletin: "This paper is confined largely to a discussion of methods of mining potash salts in France and Germany, in view of the possible application of similar methods when mining of the deposits in the southwestern part if the United States is undertaken, but it also includes a brief history of the German and French potash industry, a discussion of the geology of the deposits, a short description of the refining of crude salts for export, and an estimate of the cost of production."
Properties of Typical Crude Oils From Fields of the Eastern Hemisphere
From Introduction: "The analyses in this bulletin offer a means for judging the relative values of the foreign crude oils compared with familiar crude oils of the United States that have been analyzed by the Bureau of Mines method."
Status of LMFBR Reheat in Western Europe--1972: Report of the United States of America LMFBR Sodium Reheat Team Visit to France , Germany (FRG), Netherlands, and United Kingdom, May 22-June 6, 1972
From summary: This report describes the trips to Western European countries designing and constructing LMFBR demonstration plants for the purpose of determining the directions being taken by these countries to provide acceptable quality steam to commercially available steam turbines.
Stone Dusting or Rock Dusting to Prevent Coal-Dust Explosions, as Practiced in Great Britain and France
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 Pittsburgh and, beginning in 1911, at the experimental mine, Bruceton, Pa."
Survey of Fallout Operations
From Abstract: "The Laboratory has made a survey of fallout operations in the various countries of the world. The source of information has largely been the reports submitted to UNSCEAR forwarding data for their consideration. The abstracts are given in order of type of operation as shown in the table of contents."
World Survey of Tantalum Ore
Report issued by the U.S. Bureau of Mines discussing the occurrences of tantalum in different areas of the world. The tantalum deposits are described in reference to each individual country that it is found in. This report includes maps, tables, and illustrations.