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Quarry Accidents in the United States During the Calendar Year 1935

Description: Report published by the U.S. Bureau of Mines which is a compilation of accidents in quarries located in the United States with data regarding the number and kinds of accidents as well as information about the mining operations (e.g., number of men employed, kinds of quarries, amount of work performed, etc.).
Date: 1937
Creator: Adams, William W. & Wrenn, Virginia E.
Partner: UNT Libraries Government Documents Department
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Review of Literature on Effects of Breathing Dusts with Special Reference to Silicosis

Description: From Introduction: "This bulletin is an attempt to assemble information in convenient form on effects of breathing dusts, largely in the mining and allied industries. The literature on this subject is so extensive that no attempt has been made to include all published material or all types of dust disease but only to assemble some of the more outstanding data on several aspects of the subject, especially with reference to silicosis."
Date: 1937
Creator: Harrington, D. & Davenport, Sara J.
Partner: UNT Libraries Government Documents Department
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Asbestos

Description: From Introduction: "This report covers the essential features of the asbestos industry, including occurrence, production, mining, milling, utilization, international trade, and marketing."
Date: 1937
Creator: Bowles, Oliver
Partner: UNT Libraries Government Documents Department
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Properties of Typical Crude Oils From Fields of the Eastern Hemisphere

Description: 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."
Date: 1937
Creator: Kraemer, A. J. & Lane, E. C.
Partner: UNT Libraries Government Documents Department
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Report of the Twenty-Seventh National Conference on Weights and Measures, 1937

Description: Report of the annual conference on weights and measures, hosted by the U.S. National Bureau of Standards in Washington D.C. It includes conference proceedings, a list of attendees, information about committees and officers, and other reports or commentaries discussed at the meetings.
Date: 1937
Creator: United States. National Bureau of Standards.
Partner: UNT Libraries Government Documents Department
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FCC Reports, Volume 2, July 1, 1935 to June 30, 1936

Description: Biweekly, comprehensive compilation of decisions, reports, public notices, and other documents of the U.S. Federal Communications Commission.
Date: 1937
Creator: United States. Federal Communications Commission.
Partner: UNT Libraries Government Documents Department
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Smelting Ores in the Electric Furnace

Description: Report issued by the U.S. Bureau of Mines discussing the electric smelting of nonferrous ores. As stated in the introduction, "it is the purpose of the present paper to survey the technical and economic changes that have taken place and to determine whether electric smelting of nonferrous ores offers any more promise today than 20 years ago" (p. 1). This report includes tables, and illustrations.
Date: October 1937
Creator: Dean, Reginald S. & von Bernewitz, M. W.
Partner: UNT Libraries Government Documents Department
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Coal-Mine Explosions in Ohio: 1874-1936

Description: Report issued by the U.S. Bureau of Mines discussing coal mine explosions in Ohio between 1874 and 1936. The number of explosions and fatalities are presented. The causes of mine explosions are discussed as well. This report includes tables.
Date: October 1937
Creator: Owings, C. W.
Partner: UNT Libraries Government Documents Department
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Mineral Industries Survey of the United States: California, Kern County, Mojave District: The Golden Queen and other Mines of the Mojave District, California

Description: Report issued by the U.S. Bureau of Mines discussing the mineral production of mines in Kern County, California. Mining and milling methods of these mines are presented. This report includes tables, maps, illustrations, and photographs.
Date: January 1937
Creator: Julihn, C. E. & Horton, F. W.
Partner: UNT Libraries Government Documents Department
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Contributions to the Data on Theoretical Metallurgy: [Part] 7. The Thermodynamic Properties of Sulphur and its Inorganic Compounds

Description: Report issued by the Bureau of Mines discussing the thermodynamic properties of sulfur, and its inorganic compounds. As stated in the introduction, "the present bulletin has as its primary purpose the correlation of the thermodynamic properties of elementary sulfur and its inorganic compounds and the presentation, after careful consideration of all available information, of a self-consistent system of thermodynamic relationships for these substances" (p. 1). This report includes tables.
Date: 1937
Creator: Kelley, K. K.
Partner: UNT Libraries Government Documents Department
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Ball-Mill Grinding

Description: Report issued by the Bureau of Mines discussing the ball-mill grinding technique. Different methods of mill grinding are presented and compared with ball-mill grinding. This report includes tables, illustrations, and photographs.
Date: 1937
Creator: Coghill, Will H. & DeVaney, Fred D.
Partner: UNT Libraries Government Documents Department
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Stability of Castering Wheels for Aircraft Landing Gears

Description: "A theoretical study was made of the shimmy of castering wheels. The theory is based on the discovery of a phenomenon called kinematic shimmy. Experimental checks, use being made of a model having low-pressure tires, are reported and the applicability of the results to full scale is discussed. Theoretical methods of estimating the spindle viscous damping and the spindle solid friction necessary to avoid shimmy are given. A new method of avoiding shimmy -- lateral freedom -- is introduced" (p. 1… more
Date: August 11, 1937
Creator: Kantrowitz, Arthur
Partner: UNT Libraries Government Documents Department
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General Airplane Performance

Description: "Equations have been developed for the analysis of the performance of the ideal airplane, leading to an approximate physical interpretation of the performance problem. The basic sea-level airplane parameters have been generalized to altitude parameters and a new parameter has been introduced and physically interpreted. The performance analysis for actual airplanes has been obtained in terms of the equivalent ideal airplane in order that the charts developed for use in practical calculations wil… more
Date: June 1, 1937
Creator: Rockfeller, W. C.
Partner: UNT Libraries Government Documents Department
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The Scale Effect in Towing Tests With Airplane-Float Systems

Description: "The present report includes a description of the making of three-component measurements on a full-size float mounted on an actual airplane and the comparison of the results with those from two models of the same form but of different size which had been tested in the towing tank. The purpose of the comparison is to determine the effect of the Reynolds Number on the results of model tank tests. Following a brief discussion of previous tests intended to elucidate the problem of scale effect on f… more
Date: May 1937
Creator: Schmidt, Rudolph
Partner: UNT Libraries Government Documents Department
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The Source of Propeller Noise

Description: A two blade propeller of 40 cm diameter and zero pitch was explored for its noise development; it could be whirled up to 17,000 rpm - i.e., a tip speed of 355 meters/second. To obtain the power loss N(sub m) of the propeller for comparison with the produced acoustical power N(sub A) the engine performance characteristics were measured with and without propeller. The result is the sought-for relation c, that is, curve c' after correction with the engine efficiency.
Date: May 1937
Creator: Ernsthausen, W.
Partner: UNT Libraries Government Documents Department
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The Photoelastic Investigation of Three-Dimensional Stress and Strain Conditions

Description: The present report contains the description and typical application of two photoelastic methods which are suitable for the study of stress and strain conditions in three dimensions, namely: the fixation method and the immersion method.
Date: April 1937
Creator: Oppel, G.
Partner: UNT Libraries Government Documents Department
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Experimental investigation of the problem of surface roughness

Description: Based on the universal laws of turbulent velocity distribution at rough and smooth walls, there is in the present work presented a method that allows surface roughness tests and in particular, measurements on the roughness of ship surfaces to be carried out in a much simpler manner. The types of roughness investigated were in the form of flat, rough plates installed in a square-section rectangular channel, the other three walls always being smooth. Twenty-one plates of various roughness were in… more
Date: April 1937
Creator: Schlichting, H.
Partner: UNT Libraries Government Documents Department
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Turbulent Boundary Layer of an Airfoil

Description: A need has arisen for a new determination of the velocity profiles in the boundary layer. Assuming that the character of the velocity distribution depends to a large extent on the character of the shear distribution across the boundary layer, we shall consider the nature of the shear distribution for a boundary layer with a pressure gradient.
Date: April 1937
Creator: Fediaevsky, K.
Partner: UNT Libraries Government Documents Department
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On the Actual Loads on Airplane Landing Gears

Description: This investigation was intended to throw light on a number of problems: 1) obtain a time history of the force acting on the gear wheels during take-off and landing runs; 2) obtain the time history of the direction of this force (magnitude of its three components along the coordinate axes); 3) derive conclusions as to the design load factors. In connection with the latter, of special interest was the solution of such problems as: a) the dynamic loads in the three main landing attitudes; b) the p… more
Date: March 1937
Creator: Shiskin, S.
Partner: UNT Libraries Government Documents Department
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Some Experiments on the Slipstream Effect

Description: The models designated "Torino 30, 31, 32" are horizontal tail surfaces of rectangular, triangular, and elliptical plan form and all of the same profile section. Tests were carried out with the object being to determine the effect of the propeller slipstream on the aerodynamical characteristics of the horizontal stabilizer. The results presented correspond to a first series of tests made without an interposed wing and in which the distance between the plane of the propeller disk and the tail was… more
Date: March 1937
Creator: Ferrari, C.
Partner: UNT Libraries Government Documents Department
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Experimental Apparatus for the Study of Propellers

Description: The apparatus consists of a universal balance with transmission at variable speeds from 300 to 5,000 rpm and a group directly coupled to the model for speeds of 5 to 30,000 revolutions. This new apparatus was also designed with a torsion meter for measuring the torque. Tests were conducted on the effect of the angle between the propeller axis and the wind direction. The results presented correspond to a first series of tests made without an interposed wing and in which the distance between the … more
Date: March 1937
Creator: Panetti, M.
Partner: UNT Libraries Government Documents Department
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Valve-Spring Surge

Description: Test equipment is described that includes a system of three quartz indicators whereby three different pressures could be synchronized and simultaneously recorded on a single oscillogram. This equipment was used to test the reliction of waves at ends of valve spring, the dynamical stress of the valve spring for a single lift of the valve, and measurement of the curve of the cam tested. Other tests included simultaneous recording of the stress at both ends of the spring, spring oscillation during… more
Date: March 1937
Creator: Marti, Willy
Partner: UNT Libraries Government Documents Department
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The stress distribution in shell bodies and wings as an equilibrium problem

Description: This report treats the stress distribution in shell-shaped airplane components (fuselage, wings) as an equilibrium problem; it includes both cylindrical and non-cylindrical shells. In particular, it treats the stress distribution at the point of stress application and at cut-out points.
Date: February 1937
Creator: Wagner, H.
Partner: UNT Libraries Government Documents Department
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