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Creep Strength of Uranium Alloys at 1500 and 1800 F

Description: Abstract:"The creep resistance of various uranium binary alloys was investigated at 1500 and 1800 F in vacuum. Tests were made on alloys of uranium with beryllium, columbium, molybdenum, tantalum, titanium, and zirconium and on molybdenum-UO2 composites. Of the alloys examined, those of the uranium-molybdenum system exhibited the best creep resistance. At 1500 F, creep rates of about 0.005%/hr were produced in uranium-molybdenum alloys by a stress of 2500 psi and, at 1800 F, similar creep rates… more
Date: May 28, 1953
Creator: Saller, Henry A.; Stacy, J. T.; Eddy, N. S. & Klebanow, H. L.
Partner: UNT Libraries Government Documents Department
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Identification of Reaction Products Formed During Magnesium Reduction of Uranium Tetrafluoride: Report

Description: Abstract: "This report describes the results of X-ray diffraction examination of reaction products from a series of experiments performed by Mallinckrodt Chemical Works as an acid in understanding the process of bomb reduction of UF4. UF4 is initially reduced to UF3 by magnesium at 560 C., and subsequently to metal at 600 C. MgF2 from the initial reaction forms a coating on the magnesium which retards the final spontaneous reaction."
Date: May 15, 1953
Creator: Schwartz, C. M. & Vaughan, D. A.
Partner: UNT Libraries Government Documents Department
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Reconnaissance for Uranium in the Powder River Basin, Wyoming

Description: Abstract: A reconnaissance was made of a large part of the Powder River Basin, Wyoming, during the summer of 1952 to search for uranium deposits in parts of the basin other than the Pumpkin Buttes area. No uranium deposits of economic interest were found, but some rocks of the Tertiary Fort Union formation and the Cretaceous Inyan Kara group were found to be sufficiently uraniferous to justify further search in rocks of these units. Analyses of samples of sandstones, baked shales, and siltstone… more
Date: May 1953
Creator: Davidson, David F.
Partner: UNT Libraries Government Documents Department
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Production Test No. 105-522-E, Examination of pile process tubes

Description: The objective of the production test described in this report is to provide the authority and mechanism to remove process tubes from the piles for inspection. The test is intended to provide a more positive tube inspection program than was previously provided under production test number 105-9-P, ``Corrosion of Slugs and Tubes``, document number 7-3928.
Date: May 25, 1953
Creator: Falkoski, R. E.
Partner: UNT Libraries Government Documents Department
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Hanford Atomic Products Operation monthly report, April 1953

Description: This is a progress report of the production reactors on the Hanford Reservation for the month of April 1951. This report takes each division (e.g., manufacturing, medical, accounting, occupational safety, security, reactor operations, etc.) of the site and summarizes its accomplishments and employee relations for that month.
Date: May 20, 1953
Creator: McCune, F. K.
Partner: UNT Libraries Government Documents Department
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Calculation of Stagewise Contacting Systems

Description: From abstract: General expressions relating product stream compositions to the operating conditions of countercurrent stagewise extraction columns are derived by an inductive method, and the conversion of the general equations to ones involving the particular case of constant extraction factor is demonstrated. For comparison, the derivation of simple column equations by the use of finite difference equations is included.
Date: May 22, 1953
Creator: Bloom, J. L. & Auer, P. L.
Partner: UNT Libraries Government Documents Department
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THE THEORY OF QUANTIZED FIELDS. PART 3

Description: In this paper we discuss the electromagnetic field, as perturbed by a prescribed current. All quantities of physical interest in various situations, eigenvalues, eigenfunctions, and transition probabilities, are derived from a general transformation function which is expressed in a non-Hermitian representation. The problems treated are: the determination of the energy-momentum eigenvalues and eigenfunctions for the isolated electromagnetic field, and the energy eigenvalues and eigenfunctions fo… more
Date: May 1, 1953
Creator: Schwinger, J.
Partner: UNT Libraries Government Documents Department
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Calculated spanwise lift distributions, influence functions, and influence coefficients for unswept wings in subsonic flow

Description: Spanwise lift distributions have been calculated for nineteen unswept wings with various aspect ratios and taper ratios and with a variety of angle-of-attack or twist distributions, including flap and aileron deflections, by means of the Weissinger method with eight control points on the semispan. Also calculated were aerodynamic influence coefficients which pertain to a certain definite set of stations along the span, and several methods are presented for calculating aerodynamic influence func… more
Date: May 5, 1953
Creator: Diederich, Franklin W. & Zlotnick, Martin
Partner: UNT Libraries Government Documents Department
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Estimate of Known Recoverable Reserves of Coking Coal in Allegany County, Maryland

Description: Report issued by the U.S. Bureau of Mines investigating the estimated reserves of coking coal in Allegany County, Maryland. The investigation also studied properties of coals and coal blends not widely used for metallurgical coke making. This report includes maps and tables.
Date: May 1953
Creator: Wallace, Joseph J.; Dowd, James J.; Williams, Lloyd; Abernethy, R. F. & Reynolds, D. A.
Partner: UNT Libraries Government Documents Department
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Early Operations of the Hydrogenation Demonstration Plant, Using Rock Springs, Wyoming Coal

Description: Report issued by the Bureau of Mines over studies conducted on a coal-hydrogenation demonstration plant. The early operations of the demonstration plant are discussed. This report includes tables, illustrations, and photographs.
Date: May 1953
Creator: Clarke, Edwin A.; Chaffee, C. C. & Hirst, L. L.
Partner: UNT Libraries Government Documents Department
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Estimate of Known Recoverable Reserves of Coking Coal in Allegany County, Maryland

Description: Report issued by the U.S. Bureau of Mines investigating the estimated reserves of coking coal in Allegany County, Maryland. The investigation also studied properties of coals and coal blends not widely used for metallurgical coke making. This report includes maps and tables.
Date: May 1953
Creator: Wallace, Joseph J.; Dowd, James J.; Williams, Lloyd; Abernethy, R. F. & Reynolds, D. A.
Partner: UNT Libraries Government Documents Department
open access

Water-landing investigation of a flat-bottom v-step model and comparison with a theory incorporating planing data

Description: Report presenting testing of a flat-bottom V-step model with a beam loading of 4.6 subjected to fixed-trim impacts in smooth water. Testing occurred at three different trim angles and a range of initial flight-path angles. Data were obtained as time histories of draft, vertical velocity, and vertical acceleration. The results are presented as plots of nondimensional lift, draft, vertical velocity, and time against flight-path angle at contact.
Date: May 1953
Creator: Miller, Robert W.
Partner: UNT Libraries Government Documents Department
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Strength analysis of stiffened thick beam webs with ratios of web depth to web thickness of approximately 60

Description: "The results of an experimental investigation of the strength of plane diagonal-tension webs with ratios of web depth to web thickness of about 60 are presented. An analysis of the beam indicated that the methods of strength analysis presented in NACA TN 2661 are applicable to beams with flanges symmetrically arranged with respect to the web if the portal-frame effect is taken into account" (p. 1).
Date: May 1953
Creator: Levin, L. Ross
Partner: UNT Libraries Government Documents Department
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An Investigation of the Experimental Aerodynamic Loading on a Model Helicopter Rotor Blade

Description: Note presenting pressure distributions measured on a model helicopter rotor blade under hovering and simulated forward-flight conditions. Pressure were recorded at advance ratios of 0.10, 0.22, 0.30, 0.40, and 0.50 for a zero-offset flapping-hinge rotor and at 0.10, 0.22, 0.30, 0.45, 0.60, 0.80, and 1.0 for a lifting rotor with a flapping-hinge offset of 13 percent.
Date: May 1953
Creator: Meyer, John R., Jr. & Falabella, Gaetano, Jr.
Partner: UNT Libraries Government Documents Department
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A new shadowgraph technique for the observation of conical flow phenomena in supersonic flow and preliminary results obtained for a triangular wing

Description: Report presenting a new shadowgraph technique for the observation of conical flow phenomena in supersonic flow. The particular advantage of this technique is that it permits observation of the conical flow phenomena in a plane normal or nearly normal to the axis of propagation. Results regarding cones and triangular wings are provided.
Date: May 1953
Creator: Love, Eugene S. & Grigsby, Carl E.
Partner: UNT Libraries Government Documents Department
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Investigation of Lateral Control Near the Stall: Flight Investigation With a Light High-Wing Monoplane Tested With Various Amounts of Washout and Various Lengths of Leading-Edge Slot

Description: Note presenting flight tests made with a typical light airplane to investigate possibilities for obtaining reliable control at low flight speeds. An attempt was made to find a configuration that would provide sufficient elevator control for a three-point landing under the most critical condition and that would also have insufficient elevator control to exceed the angle of attack at which reliable lateral control is obtained in flight under all of the center-of-gravity and power conditions.
Date: May 1953
Creator: Weick, Fred E.; Sevelson, Maurice S.; McClure, James G. & Flanagan, Marion D.
Partner: UNT Libraries Government Documents Department
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A variable-frequency light synchronized with a high-speed motion-picture camera to provide very short exposure times

Description: Report discussing a new high-speed photographic technique, which employs a variable-frequency light synchronized with a commercially available 16-millimeter high-speed motion-picture camera without appreciable alterations to the camera. The technique is described and results obtained by the technique of photographing the flow past models in a wind tunnel with the schileren method of flow visualization are presented.
Date: May 1953
Creator: Lindsey, Walter F. & Burlock, Joseph
Partner: UNT Libraries Government Documents Department
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