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Miscellaneous photographs

Description: Series of twenty-six photographs of components at the Aerojet-General Corporation, including entire constructions taken out-of-doors, assembly segments, and individual components. Many of the images are close-ups of specific pieces to show detail; few of the images are labeled, although some have captions or visible tags with part numbers.
Date: 1975-23~
Creator: Aerojet-General Corporation
open access

Control of Metallurgical and mineral dusts and fumes in Los Angeles County, California

Description: Report issued by the U.S. Bureau of Mines discussing metallurgical and mineral fumes and dusts in Los Angeles County, California. Properties of dusts and fumes from different minerals are presented. This report includes tables, maps, illustrations, and photographs.
Date: April 1952
Creator: Allen, Glenn L.; Viets, Floyd H. & McCabe, Louis C.
open access

Physical and Chemical Properties of the Petroleums of the San Joaquin Valley of California

Description: From Introduction: "This bulletin is the second report so far published and deals primarily with the large oil fields of the San Joaquin Valley of California. The work will be continued as rapidly as possible, and will include all of the more important petroleum districts of the United States. The prime object of the investigations was to determine the economic value of the petroleums and natural gases in the United States with especial reference to the supplies in the public lands, and to asce… more
Date: unknown
Creator: Allen, Irving C.; Jacobs, W. A. & Burrell, G. A.
open access

Analysis of the Mount Laguna Photovoltaic Cell Failure

Description: From summary: The purpose of this analysis is to provide photovoltaic (P/V) system design and field engineers with an understanding of the primary factors which can cause individual P/V cells in a module or an array to be forced into reverse bias and eventual failure and to provide guidelines for the adequate protection of the cells.
Date: January 1981
Creator: Anderson, E.; Lambarski, T.; Kadlec, D.; Nakos, J. & Turfler, R. M.
open access

Mining Practices and Safety at the Lava Cap Gold Mining Corporation Mines, Nevada City-Grass Valley District, California

Description: Report issued by the Bureau of Mines discussing mining safety in the Grass Valley mining district. As stated in the introduction, "the purpose of this paper is not to present an outstanding safety record but to show that gold mining can be pursued with the same degree of safety and improvement as any other industry, if and when the management recognizes that it can and must be done" (p. 1). This report includes tables, maps, illustrations, and photographs.
Date: 1941
Creator: Ash, S. H.
open access

Safety Factors in Construction and Ventilation, Wawona Vehicular Tunnel, Yosemite National Park, California

Description: Report issued by the Bureau of Mines discussing the safety and ventilation hazards presented during the construction of the Wawona tunnel in Yosemite National Park. Safety precautions and procedures used during the construction are presented. This report includes tables, illustrations, and photographs.
Date: 1940
Creator: Ash, S. H.
open access

Safety Practices in California Gold Dredging

Description: From Introduction Purpose of Report: "The importance of safety work in connection with the operations of gold dredges assumed such proportions at one time that the State of California deemed it necessary to issue a special bulletin on this subject."
Date: 1932
Creator: Ash, S. H. (Simon Harry), b. 1889
open access

Permissible Electric Cap Lamps and Ventilation in Certain California Mines and Water-Tunnel Construction

Description: From Introduction: "As a result of the recommendations of this committee, special studies have been made of the methane hazards incident to mining and tunneling operations in the Coast Range Mountains. These studies have resulted in the adoption of numerous safety precautionary measures; among them the use of permissible types of mining equipment, electric cap lamps, with which this deals with primarily."
Date: 1932
Creator: Ash, S. H. (Simon Harry), b. 1889 & Rankin, J. H.
open access

Evaluation of a California Bentonitic Clay for Use in Oil-Well Drilling Muds

Description: Report issued by the Bureau of Mines over studies conducted on the bentonite deposits of San Benito County, California. As stated in the introduction, "the purpose of the study was to learn if these large deposits contain bentonite of sufficient quality and quantity to be of economic value as an oil-well drilling mud additive" (p. 1). This report includes tables, maps, illustrations, and photographs.
Date: 1959
Creator: Aune, Quinton A.; Caraway, W. Hodge; Morris, Frank C. & Gates, George Laurence
open access

Direct Conversion Technology. Progress report, January 1, 1992--June 30, 1992

Description: The overall objective of the Direct Conversion Technology task is to develop an experimentally verified technology base for promising direct conversion systems that have potential application for energy conservation in the end-use sectors. Initially, two systems were selected for exploratory research and advanced development. These are Alkali Metal Thermal-to-Electric Converter (AMTEC) and Two-Phase Liquid Metal MD Generator (LMMHD). This report describes progress that has been made during the … more
Date: July 1, 1992
Creator: Back, L. H.; Fabris, G. & Ryan, M. A.
open access

Direct Conversion Technology

Description: The overall objective of the Direct Conversion Technology task is to develop an experimentally verified technology base for promising direct conversion systems that have potential application for energy conservation in the end-use sectors. Initially, two systems were selected for exploratory research and advanced development. These are Alkali Metal Thermal-to-Electric Converter (AMTEC) and Two-Phase Liquid Metal MD Generator (LMMHD). This report describes progress that has been made during the … more
Date: July 1, 1992
Creator: Back, L.H.; Fabris, G. & Ryan, M.A.
open access

Quicksilver Deposits of the Parkfield District, California

Description: From abstract: The Parkfield district, one of the minor California quicksilver districts, lies on the southern end of the Diablo Range, in the southeastern part of Monterey County and the westernmost tip of Kings County. (...) Two geologically similar areas, separated by 10 miles of unmineralized rocks, have been mapped. These areas contain (1) sedimentary, volcanic, and metamorphic rocks belonging to the Franciscan formation, of probable Jurassic age, (2) sedimentary rocks of Cretaceous age, (… more
Date: 1942
Creator: Bailey, Edgar Herbert
open access

Application of a Windshield-Display System to the Low-Altitude Bombing Problem

Description: From Introduction: "The design and flight evaluation of an airborne target simulator for use in tracking studies of fighter-type airplanes equipped with optical gunsights have recently been reported (ref. 1). In this equipment the target airplane was represented by a movable dot of light projected on the windshield of the test airplane."
Date: January 4, 1957
Creator: Barnett, Robert M.; Kauffman, William M. & Fulcher, Elmer C.
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