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Abstracts of Current Decisions on Mines and Mining: September to December, 1917

Description: Bulletin issued by the U.S. Bureau of Mines: "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" (Bulletin 61, p. 9).
Date: 1918
Creator: Thompson, J. W.
Partner: UNT Libraries Government Documents Department
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Aerofoils and Aerofoil Structural Combinations

Description: Report presents results of wind tunnel tests of cambered aerofoils and body-wing combinations used for biplanes. Aerodynamic characteristics including drag, lift-drift ratio and stability derivatives are given.
Date: 1918?
Creator: Gorrell, Edgar S. & Martin, H. S.
Partner: UNT Libraries Government Documents Department
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Air Flow Through Poppet Valves

Description: Report discusses the comparative continuous flow characteristics of single and double poppet valves. The experimental data presented affords a direct comparison of valves, single and in pairs of different sizes, tested in a cylinder designed in accordance with current practice in aviation engines.
Date: 1918
Creator: Lewis, G. W. & Nutting, E. M.
Partner: UNT Libraries Government Documents Department
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Airplane stress analysis

Description: Report presents stress analysis of individual components of an airplane. Normal and abnormal loads, sudden loads, simple stresses, indirect simple stresses, resultant unit stress, repetitive and equivalent stress, maximum steady load and stress are considered.
Date: January 1918
Creator: Zahm, A. F. & Crook, L. H.
Partner: UNT Libraries Government Documents Department
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Bibliography of Petroleum and Allied Substances, 1915

Description: From Introduction: "This bibliography, which is intended to be the first of a yearly series, has been compiled by the petroleum division of the Bureau of Mines with a view to satisfying this need. The references include only the more noteworthy writings that appeared during the year 1915 in both the United States and foreign countries. The references are arranged according to the subject classification on pages 3 to 11."
Date: 1918
Creator: Burroughs, E. H.
Partner: UNT Libraries Government Documents Department
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California Mining Statutes Annotated

Description: From Preface: "The purpose of such publication is to point out the laws and regulations best adapted to increase safety and efficiency in the mineral industry of the United States and to aid legislative bodies in framing uniform mining laws. The State of California, by reason of its historic interest in mining and by reason of its great extent of mineral land and its vast mineral deposits, has been selected for the first bulletin of the of the State series. This bulletin is submitted to the minā€¦ more
Date: 1918
Creator: Thompson, J. W.
Partner: UNT Libraries Government Documents Department
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A Convenient Multiple-Unit Calorimeter Installation

Description: Report issued by the Bureau of Mines discussing the installation of a multiple-unit calorimeter. Operating instructions, and methods are presented in detail. This report includes tables, illustrations, and photographs.
Date: 1918
Creator: Davis, J. D. & Wallace, E. L.
Partner: UNT Libraries Government Documents Department
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Experimental Research on Air Propellers

Description: The purposes of the experimental investigation on the performance of air propellers described in this report are as follows: (1) the development of a series of design factors and coefficients drawn from model forms distributed with some regularity over the field of air-propeller design and intended to furnish a basis of check with similar work done in other aerodynamic laboratories, and as a point of departure for the further study of special or individual types and forms; (2) the establishmentā€¦ more
Date: 1918
Creator: Durand, William F.
Partner: UNT Libraries Government Documents Department
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Fabrics for Aeronautic Construction

Description: The Bureau of Standards undertook the investigation of airplane fabrics with the view of finding suitable substitutes for the linen fabrics, and it was decided that the fibers to be considered were cotton, ramie, silk, and hemp. Of these, the cotton fiber was the logical one to be given primary consideration. Report presents the suitability, tensibility and stretching properties of cotton fabric obtained by laboratory tests.
Date: 1918
Creator: Walen, E. D.
Partner: UNT Libraries Government Documents Department
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The Fusibility of Coal Ash and the Determination of the Softening Temperature

Description: From Scope of Investigation: "The present publication reviews the literature on the subject and gives in detail the effect of various oxidizing, reducing, and neutral atmospheres such as are found in various parts of the fuel bed on the softening temperature of ash when molded in the form of Seger cones. As a result of this study a practical method of determining fusibility has been developed whereby the ash is caused to soften and form slags in which the iron exists in approximately the same sā€¦ more
Date: 1918
Creator: Fieldner, Arno C.; Hall, Albert E. & Field, Alexander L.
Partner: UNT Libraries Government Documents Department
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Innovations in the Metallurgy of Lead

Description: From Introduction: "The data reported in this bulletin are largely the result of experiments conducted by the Salt Lake City station of the Bureau of Mines in cooperation with the department of metallurgical research of the University of Utah. The work on the lead is the only one of the phases of the investigations carried on at that station during the years 1914 to 1916."
Date: 1918
Creator: Lyon, Dorsey A. & Ralston, Oliver C.
Partner: UNT Libraries Government Documents Department
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An Investigation of the Elements Which Contribute to Statical and Dynamical Stability, and of the Effects of Variation in Those Elements

Description: Part 1 gives details of models tested and methods of testing of the Eiffel 36 wing alone and the JN2 aircraft. Part 2 presents a statistical analysis of the following: lift and drag contributed by body and chassis tested without wings; lift and drag contributed by tail, tested without wings; the effect on lift and drift of interference between the wings of a biplane combination; lift and drag contributed by the addition of body, chassis, and tail to a biplane combination; total parasite resistaā€¦ more
Date: 1918
Creator: Klemin, Alexander; Warner, Edward P. & Denkinger, George M.
Partner: UNT Libraries Government Documents Department
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Measurements on the Index of Refraction of Air for Wave Lengths from 2218 A to 9000 A

Description: Report issued by the Bureau of Standards over measurements of air refraction. Comparison of older studies of this kind is presented. As stated in the introduction, "a brief review of the objects, experimental methods, and results of these earlier investigations will assist in explaining the purpose of this additional investigation on the index of refraction and dispersion of air described in detail in this paper" (p. 698). This report includes tables, illustrations, and photographs.
Date: 1918
Creator: Meggers, W. F. & Peters, Chauncey G.
Partner: UNT Libraries Government Documents Department
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Measuring the Temperature of Gases in Boiler Settings

Description: Scope of Report: "The bulletin presents the results of a series of measurements of the temperatures of gases in the most common types of boilers, discusses the errors occurring in the usual methods of measurement, and gives directions for making and using inexpensive thermocouples to determine flue-gas temperatures."
Date: 1918
Creator: Kreisinger, Henry & Barkley, J. F.
Partner: UNT Libraries Government Documents Department
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Melting Brass in a Rocking Electric Furnace

Description: From Object of Report: "The object of this paper is to set forth in detail the possibilities and limitations of a rocking electric brass furnace. The general problem of electric brass furnaces is discussed and various types of furnaces are compared only so far as is necessary for the purpose of this report."
Date: 1918
Creator: Gillett, H. W. & Rhoads, A. E.
Partner: UNT Libraries Government Documents Department
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Mining and Milling of Lead and Zinc Ores in the Missouri-Kansas-Oklahoma Zinc District

Description: From Introduction: "This report of investigations carried on by the Bureau of Mines gives the methods used in mining and milling and indicates in some detail the conditions that affect the efficiency of those methods; it does not attempt to discuss the geology of the district, except incidentally, as this has been described in numerous reports by several geologists."
Date: 1918
Creator: Wright, Clarence A.
Partner: UNT Libraries Government Documents Department
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Oil-storage Tanks and Reservoirs with a Brief Discussion of Losses of Oil in Storage and Methods of Prevention

Description: From Introduction: "The Bureau of Mines has been conducting investigations with the view of determining the types of containers best adapted to the storage of oil. These investigations have shown that tanks composed wholly of steel give the best results. Practically all such containers in use at present have wooden roofs and this type of construction is here described, although it is the belief of the writer that concrete roofs would be far more satisfactory in every way, and that the differencā€¦ more
Date: 1918
Creator: Bowie, C. P.
Partner: UNT Libraries Government Documents Department
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Periodic Stresses in Gyroscopic Bodies, With Applications to Air Screws

Description: Report discusses periodic stresses in gyroscopic bodies with applications to air screws caused by particle mass. Report concludes that all modern air screws obey the laws found for plane groups of particles. In particular the two-bladers exert on the shaft a rhythmic gyroscopic torque; the multibladers a steady one; both easily calculable for any given conditions of motion and mass distribution.
Date: 1918
Creator: Zahm, A. F.
Partner: UNT Libraries Government Documents Department
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