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  Partner: UNT Libraries Government Documents Department
 Decade: 1940-1949
 Year: 1943
Production of Uranium Metal

Production of Uranium Metal

Date: February 17, 1943
Creator: Nagy, R.
Description: Experiments were carried out for the purpose of increasing production, efficiency, and purity of uranium metal. The electrolytic method as described by Driggs and Lilliendahl for the preparation of uranium metal was followed with but little deviation. The yield of metal at the very best was only 50%. The metal powder produced, at times, was very pyrophoric. Methods were found whereby the metal, at least in part, can be made from the oxides with an average yield of about 90%. The small amounts of sludge and slag accumulated in this modified process can readily be re-used in the electrolysis pot and, therefore, an overall yield of 96% can be obtained. Information accumulated from these experiments has been compiled in such a manner as to be readily available for factory use, for patent purposes and for future publication.
Contributing Partner: UNT Libraries Government Documents Department
The Production of Uranium Metal by Metal Hydrides Incorporated

The Production of Uranium Metal by Metal Hydrides Incorporated

Date: January 1, 1943
Creator: Alexander, P. P.
Description: Metal Hydrides Incorporated was a pioneer in the production of uranium metal on a commercial scale and supplied it to all the laboratories interested in the original research, before other methods for its production were developed. Metal Hydrides Inc. supplied the major part of the metal for the construction of the first experimental pile which, on December 2, 1942, demonstrated the feasibility of the self-sustaining chain reaction and the release of atomic energy.
Contributing Partner: UNT Libraries Government Documents Department
Discriminator for Photographic Analyzer

Discriminator for Photographic Analyzer

Date: 1943
Creator: Sands, M.
Description: Technical drawing of frequency discriminators and image analysis for nuclear reactors.
Contributing Partner: UNT Libraries Government Documents Department
Report of the Chief of the Forest Service: 1943

Report of the Chief of the Forest Service: 1943

Date: 1943
Creator: United States. Forest Service.
Description: Annual report from the U.S. Department of Agriculture Forest Service describing activities of the organization, expenditures and receipts, and a discussion of other relevant topics for the fiscal year.
Contributing Partner: UNT Libraries Government Documents Department
Project 9536, metal turnings - fire hazard

Project 9536, metal turnings - fire hazard

Date: August 27, 1943
Creator: unknown
Description: The turnings have proved to be highly inflammable and subject to spontaneous ignition. Several experiments have been conducted at Herring-Hall-Marvin Safe Company, Hamilton, Ohio, and Baker Brothers, Inc., Toledo, Ohio, and in addition there have been a number of accidental fires, of which at least three were spontaneous. Fires of quantities ranging from several pounds to several hundred pounds have been experienced and a number of extinguishers have been tried. Records of this work are available in our files. While the work to date does not constitute an exhaustive survey of the problem, we believe that it is now safe to outline precautionary and protective measures.
Contributing Partner: UNT Libraries Government Documents Department
The toxicity of X material

The toxicity of X material

Date: December 1943
Creator: Ferry, J. L.
Description: This report addresses toxicity (largely chemical) of Manhattan Project materials from the point of worker protection. Known chemical toxicities of X material (uranium), nitrous fumes, fluorine, vanadium, magnesium, and lime are described followed by safe exposure levels, symptoms of exposure, and treatment recommendations. The report closes with an overview of general policy in a question and answer format.
Contributing Partner: UNT Libraries Government Documents Department
A theoretical investigation of the lateral oscillations of an airplane with free rudder with special reference to the effect of friction

A theoretical investigation of the lateral oscillations of an airplane with free rudder with special reference to the effect of friction

Date: March 1, 1943
Creator: Sternfield, Leonard
Description: None
Contributing Partner: UNT Libraries Government Documents Department
The effect of altitude on cooling

The effect of altitude on cooling

Date: March 1, 1943
Creator: Wood, George P
Description: None
Contributing Partner: UNT Libraries Government Documents Department
NACA Mach number indicator for use in high-speed tunnels

NACA Mach number indicator for use in high-speed tunnels

Date: July 1, 1943
Creator: Smith, Norman F
Description: None
Contributing Partner: UNT Libraries Government Documents Department
Review of flight tests of NACA C and D cowlings on the XP-42 airplane

Review of flight tests of NACA C and D cowlings on the XP-42 airplane

Date: April 1, 1943
Creator: Johnston, J Ford
Description: None
Contributing Partner: UNT Libraries Government Documents Department
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