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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

Ensemble - Dress and Coat

Description: Ensemble of blue heathered wool herringbone knit. A) Dress of blue heathered wool herringbone knit with bodice of black jersey knit. Short sleeves. 1 1/2" wide mandarin collar. Center back zipper closure with self-covered button and buttonhole on collar at back. Skirt is street length with slight A-line. Unlined skirt. No labels in dress. B) Fitted jacket of of blue heathered wool herringbone knit. Long sleeves with cuffs of black Persian lamb. V-neckline trimmed in black Persian lamb. L… more
Date: 1946
Creator: Norell, Norman, 1900-1972
Partner: UNT College of Visual Arts + Design
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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
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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

[Boy Working on Canadian Farm]

Description: Photograph of a boy working on a farm in Canada. He wears overalls and forks hay while a Colley stands nearby. Rolling hills and trees make up the background. Photo by: Joe Clark, HBSS. Clark PhotoFile: 2407-131
Date: August 22, 1946
Creator: Clark, Joe
Partner: UNT Libraries Special Collections
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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
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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
open access

A Discussion of the Application of the Prandtl-Glauert Method to Subsonic Compressible Flow Over a Slender Body of Revolution

Description: Note presenting an analysis of the use of the Prandtl-Glauert method for subsonic potential flow of a compressible fluid. This paper specifically focuses on the difference between the two- and three-dimensional flow when using this method.
Date: September 1946
Creator: Lees, Lester
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
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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
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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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Performance of Hoods for Aircraft Exhaust-Gas Turbines

Description: Report presenting the performance of a turbosupercharger turbine with three types of exhaust hood. The results for conical hoods, flat-nozzle hoods, and short-turning-radius hoods are provided.
Date: November 1946
Creator: Turner, L. Richard; Lowdermilk, Warren H. & Lord, Albert M.
Partner: UNT Libraries Government Documents Department
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Compressive Strength of 24S-T Aluminum-Alloy Flat Panels With Longitudinal Formed Hat-Section Stiffeners

Description: "Results are presented for a part of a test program on 24S-T aluminum alloy flat compression panels with longitudinal formed hat-section stiffeners. This part of the program is concerned with panels in which the thickness of the stiffener materials is 0.625 times the skin thickness. The results, presented in tabular and graphical form, show the effect of the relative dimensions of the panel on the buckling stress and the average stress at maximum load" (p. 1).
Date: December 1946
Creator: Schuette, Evan H.; Barab, Saul & McCracken, Howard L.
Partner: UNT Libraries Government Documents Department
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The Synthesis and Purification of Aromatic Hydrocarbons 1: Butylbenzene

Description: "A 13-gallon quantity of butylbenzene was synthesized and purified by large-scale preparation of 4-phenyl-1-butene from benzyl-magnesium chloride and allyl chloride with subsequent hydrogenation of the olefin. The physical constants for pure samples of 4-phenyl-1-butene and butylbenzene were determined and the position of the double bond in the olefin was established" (p. 1).
Date: January 1946
Creator: Karabinos, Joseph V. & Lamberti, Joseph M.
Partner: UNT Libraries Government Documents Department
open access

A Relaxation Procedure for the Stress Analysis of a Continuous Beam-Column Elastically Restrained Against Deflection and Rotation at the Supports

Description: Note presenting a method of stress analysis for a continuous beam-column supported by deflectional and rotational springs. The principal feature of the method is the use of a relaxation procedure to determine the deflections and rotations of the supports. The shears and moments at the supports and between the supports can then be calculated with the aid of sample equations and graphs.
Date: October 1946
Creator: Hu, Pai C. & Libove, Charles
Partner: UNT Libraries Government Documents Department
open access

The effect of engine variables on the prediction-limited performance of three fuels

Description: Report presenting preignition-limited performance data for S reference fuel, diisobutylene, and benzene with an engine-heated hot spot on a supercharged CFR engine at 11 sets of engine operating conditions. Results indicated that increases in compression ratio, spark advance, coolant temperature, or inlet-air temperature decreased the preignition-limited indicated mean effective pressure of all three fuels.
Date: September 1946
Creator: Male, Donald W.
Partner: UNT Libraries Government Documents Department
open access

Flight investigation of the cooling characteristics of a two-row radial engine installation 3: engine temperature distribution

Description: From Summary: "The temperature distribution of a two-row radial engine in a twin-engine airplane has been investigated in a series of flight tests. The test engine was operated over a wide range of conditions at density altitudes of 5000 and 20,000 feet; quantitative results are presented showing the effects of flight and engine variables upon average engine temperature and over-all temperature spread. Discussions of the effect of the variables on the shape of the temperature patterns and on th… more
Date: October 1946
Creator: Rennak, Robert M.; Messing, Wesley E. & Morgan, James E.
Partner: UNT Libraries Government Documents Department
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