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The Lagrangian Multiplier Method of Finding Upper and Lower Limits to Critical Stresses of Clamped Plates

Description: "The theory of Lagrangian multipliers is applied to the problem of finding both upper and lower limits to the true compressive buckling stress of a clamped rectangular plate. The upper and lower limits thus bracket the truss, which cannot be exactly found by the differential-equation approach. The procedure for obtaining the upper limit, which is believed to be new, presents certain advantages over the classical Raleigh-Rite method of finding upper limits" (p. 1).
Date: 1946
Creator: Budiansky, Bernard & Hu, Pai C.
Partner: UNT Libraries Government Documents Department
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Single-Cylinder Oil-Control Tests of Porous Chrome Plated Cylinder Barrels for Radial Air-Cooled Engines

Description: Report presenting a series of single-cylinder engine tests run to determine a satisfactory method of reducing oil consumption in radial air-cooled engines with flat-face compression rings as standard parts and equipped with cylinder barrels salvaged by porous chrome plating. Testing was conducted using porous chrome-plated cylinders with straight and choke bores with standard flat-face compression rings.
Date: January 1946
Creator: Johnson, Robert L. & Swikert, Max
Partner: UNT Libraries Government Documents Department
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Report on the Investigation of the Fire at the Liquefaction, Storage, and Regasification Plant of the East Ohio Gas Co., Cleveland Ohio, October 20, 1944

Description: Report issued by the Bureau of Mines over investigations conducted on the 1944 fire at the East Ohio Gas Company. Descriptions of the plant, and construction of the gas tanks are listed. A detailed description of the disaster, and its aftermath are also presented. This report includes tables, maps, illustrations, and photographs.
Date: February 1946
Creator: Elliott, M. A.; Seibel, C. W.; Brown, F. W.; Artz, R. T. & Berger, L. B.
Partner: UNT Libraries Government Documents Department
open access

Mining and Concentration of Missouri Valley Manganese at Chamberlain, South Dakota

Description: Report issued by the U.S. Bureau of Mines regarding the concentration of manganese ore along the Missouri River valley. The report contains maps, tables, graphs, photographs, and illustrations.
Date: February 1946
Creator: Dupuy, Leon W.; Calhoun, W. A. & Rasmussen, R. T. C.
Partner: UNT Libraries Government Documents Department
open access

Flood-Prevention Projects at Pennsylvania Anthracite Mines: A Preliminary Study

Description: Report issued by the Bureau of Mines over flood-prevention methods at Pennsylvania anthracite mines. The flood-prevention projects are discussed. This report includes tables, maps, photographs, and illustrations.
Date: March 1946
Creator: Ash, S. H. & Westfield, James
Partner: UNT Libraries Government Documents Department
open access

Survey of Tin in California

Description: Report issued by the U.S. Bureau of Mines on a survey of tin deposits in California. A focus on tin deposits in Kern and San Bernardino Counties are presented. The report includes two maps.
Date: April 1946
Creator: Bedford, Robert H. & Johnson, F. T.
Partner: UNT Libraries Government Documents Department
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National Motor-Gasoline Survey: Summer 1945

Description: Report issued by the U.S. Bureau of Mines on the motor fuels sold in the summer of 1945. Analysis of the properties of fuel samples collected is presented. This report includes tables, graphs, and a map.
Date: January 1946
Creator: Blade, O. C.
Partner: UNT Libraries Government Documents Department
open access

Exploration of Red Mountain Chromite Deposits, Kenai Peninsula, Alaska

Description: Report issued by the U.S. Bureau of Mines investigating the chromite deposits of Red Mountain on Kenai Peninsula, Alaska. Research methods include surface sampling and core drilling. The report includes tables, maps, and illustrations.
Date: April 1946
Creator: Rutledge, Franklin A.
Partner: UNT Libraries Government Documents Department
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Exploration of the Avon Mica District, Latah County, Idaho

Description: Report issued by the U.S. Bureau of Mines on the investigations conducted on the mica deposits found in Latah County, Idaho. Characteristics and properties of the mica deposits are listed. This report includes tables, and maps.
Date: July 1946
Creator: Reed, Glen C.
Partner: UNT Libraries Government Documents Department
open access

Exploration of the Mount Hope Mine, Eureka County, Nevada

Description: Report issued by the U.S. Bureau of Mines on the exploration of the Mount Hope mine. Analysis of samples obtained from core-drilling are listed. This report includes tables, maps, and illustrations.
Date: August 1946
Creator: Matson, E. J.
Partner: UNT Libraries Government Documents Department
open access

National Motor-Gasoline Survey: Winter 1945-46

Description: Report issued by the U.S. Bureau of Mines on the motor fuels sold during the winter of 1945-46. The characteristics of the fuels sold, and the regions they were sold in are listed. This report includes tables, and maps.
Date: July 1946
Creator: Blade, O. C. & Sponsler, C. R.
Partner: UNT Libraries Government Documents Department
open access

United States Earthquakes, 1946

Description: Report discussing earthquake activity in the United States during 1946. The report is broken down by regions and has sections for specific earthquakes.
Date: 1946
Partner: UNT Libraries Government Documents Department
open access

Production of I sup 131

Description: We have reviewed the problem of recovering I{sup 131} from the Separations Process and conclude that recovery is entirely feasible. This report contains recommendations for I{sup 131} recovery offered for consideration and are based on a technical study.
Date: April 17, 1946
Partner: UNT Libraries Government Documents Department
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Production test 105-2-P (Supplement A) - Activity of pile discharge water (Activation of manganese and iron)

Description: This report discusses the Production Test 105-2-P (Supplement A) -- Activity of Pile Discharge Water. Previous studies of pile discharge water have shown that one of two processes is responsible for the large but variable amount of Mn{sup 56} activity present in the water. One process is the production of Mn{sup 56} by the reaction Mn{sup 55} on manganese impurity in the water. The amount of such impurity has been shown to be too small to produce the observed amount of Mn{sup 56} unless the mea… more
Date: May 8, 1946
Creator: West, J.M.
Partner: UNT Libraries Government Documents Department
open access

Heat Treatment and Machinability of Beryllium Rod

Description: Purpose: "The purpose of this investigation was to determine whether or not the machinability of extruded beryllium rod could be improved by appropriate heat treatment. It was thought that this could be accomplished in the extruded Be rod by recrystallization without further growth of these grains. This should impart a certain degree of ductility to the metal. The investigations was divided into two parts: Part I - Heat Treatment of Beryllium Rod; Part II - Machinability of Beryllium Rod."
Date: February 19, 1946
Creator: Norhaft, P. C.
Partner: UNT Libraries Government Documents Department
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Effects of Specific Types of Surface Roughness on Boundary-Layer Transition

Description: Report presenting tests of two typical low-drag airfoils of 90-inch chord to determine the effects of surface projections, grooves, and sanding scratches on boundary-layer transition. Data were obtained for projections of various sizes and chordwise locations on both low-drag airfoils.
Date: February 1946
Creator: Loftin, Laurence K., Jr.
Partner: UNT Libraries Government Documents Department
open access

A General Method of Selecting Foam Inhibitors

Description: Note presenting a criterion for selecting foam inhibitors from insoluble liquids that form emulsions with the foaming liquid. By determining the surface tensions of the foaming liquid and of the additive saturated with that liquid and the interfacial tension between them, spreading and entering coefficients may be calculated. A mechanism of foam inhibition is also described.
Date: May 1946
Creator: Robinson, J. V. & Woods, W. W.
Partner: UNT Libraries Government Documents Department
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A preliminary study of a propeller powered by gas jets issuing from the blade tips

Description: From Summary: "Computations are made of the performance of a propeller designed to develop 56 thrust horsepower at 100 miles per hour. The fuel consumption of the jet-operated propeller would be considerably higher than that of a reciprocating engine and a propeller. The lighter weight of the jet-operated propeller will result in a lighter weight of engine plus fuel for short-range flights. A theoretical analysis is made of a propeller powered by gas jets issuing from the blade tips."
Date: November 1946
Creator: Sanders, J. C. & Sanders, N. D.
Partner: UNT Libraries Government Documents Department
open access

Comparison of relative sensitivities of the knock limits of two fuels to six engine variables

Description: Report presenting knock testing of a sensitive fuel and a relatively insensitive fuel in a full-scale air-cooled cylinder. Six engine variables were investigated: fuel-air ratio, compression ratio, inlet-air temperature, spark advance, exhaust pressure, and cylinder temperature.
Date: August 1946
Creator: Cook, Harvey A.; Held, Louis F. & Pritchard, Ernest I.
Partner: UNT Libraries Government Documents Department
open access

Flow Tests of an NACA-Designed Supercharger Inlet Elbow and the Effects of Various Components on the Flow Characteristics at the Elbow Outlet

Description: Note presenting an investigation on a supercharger inlet elbow designed to have a uniform velocity distribution at the outlet with a minimum pressure loss through the bend. The effects of a vane, an impeller-shaft housing, and the combination of the two on the outlet-velocity distribution and total pressure drop through the elbow were determined.
Date: October 1946
Creator: Guentert, D. C.; Todd, D. J. & Simmons, W. P., Jr.
Partner: UNT Libraries Government Documents Department
open access

Methods for Determination and Computation of Flow Patterns of a Compressible Fluid

Description: Note presenting a well-known method of generating stream functions of an incompressible fluid flow, which involves taking the imaginary part of an analytic function of a complex variable. This paper is specifically devoted to a detailed discussion of performing computations related to obtaining flow patterns of compressible fluid from analytic functions of a compressible fluid. An example is also provided to illustrate the method.
Date: September 1946
Creator: Bergman, Stefan
Partner: UNT Libraries Government Documents Department
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