Technical Report Archive & Image Library (TRAIL) - 1,521 Matching Results

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Reconnaissance of Metal Mining in the San Juan Region: Ouray, San Juan, and San Miguel Counties, Colorado

Description: Report issued by the U.S. Bureau of Mines discussing metal mines in Colorado. As stated in the summary, "this paper describes the mineral deposits and discusses mining and milling methods and related operating conditions in an important gold, silver, lead, and zinc producing area in Ouray, San Juan, and San Miguel Counties, Colo., embracing 250 square miles" (p. 5). This report includes tables, maps, and illustrations.
Date: March 1950
Creator: King, William H. & Allsman, Paul T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reconnaissance of the Beluga River Coalfield, Alaska

Description: Report issued by the Bureau of Mines over studies conducted on the Beluga River coalfield "to determine, if possible, which areas were most favorable for developing large reserves of coal suitable for open-pit mining" (p. 1). Description of the coal deposits, and results of the study are presented. This report includes tables, illustrations, and maps.
Date: 1958
Creator: Maloney, Raymond P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reconnaissance of the Cartersville Manganese Deposits, Bartow County, Georgia

Description: Report issued by the Bureau of Mines over attempts to extract manganese ore from different sources in Bartow County, Georgia. Location, amount, and analysis of the manganese deposits are presented. This report includes tables, and maps.
Date: January 1954
Creator: O'Neill, J. F. & Wyndham, C. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Recovery of Gasoline From Uncondensed Still Vapors

Description: Report issued by the U.S. Bureau of Mines on the possibilities of increasing fuel production from crude oil. Methods of recovering oil that is lost by remaining uncondensed are presented. This report includes tables, graphs, and illustrations.
Date: April 1922
Creator: Dow, Donald B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Recovery of Gasoline from Uncondensed Still Vapors

Description: Report issued by the Bureau of Mines discussing fuel recovery from uncondensed vapors. As stated in the introduction, "this paper aims to show the possibility of increasing the gasoline yield from the crude by the recovery of considerable gasoline that is now lost by remaining uncondensed" (p. 1). This report includes tables, illustrations, and photographs.
Date: August 1923
Creator: Dow, D. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Recovery of Oil in California By Secondary Methods: In Two Parts - Part 1. San Joaquin Valley Oil Fields

Description: Report issued by the U.S. Bureau of Mines on the study of secondary-recovery methods of oil production in California. The report discusses methods and properties of this type of oil production, focusing on air injection. This report is in two parts, and contains tables and maps.
Date: July 1952
Creator: Loomis, A. G.; Fried, A. N. & Crowell, D. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Recovery of Oil in California by Secondary Methods: In Two Parts - Part 2. Los Angeles Basin and Coastal Oil Fields

Description: Report issued by the U.S. Bureau of Mines on secondary methods of oil-recovery in California oil fields. The main recovery method studied are of the pressure-maintenance type, such as air-injection. The report is divided into two parts, and includes maps and tables.
Date: May 1952
Creator: Loomis, A. G.; Fried, A. N. & Crowell, D. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Recovery of Zinc from Low-Grade and Complex Ores

Description: From Introduction: "Vocalization in retorts has been, until recently, the only commercial process of producing spelter, hence the zinc mine operators have had to meet the terms of the zinc mine operators have had to meet the terms of the zinc smelters in regard to the following requirements: (1) Minimum percentage of zinc the ore must contain; (2) the chemical combination of the zinc in the ore; (3) the proportion present of those elements that interfere with the successful recovery of the zinc… more
Date: 1919
Creator: Lyon, Dorsey A. & Ralston, Oliver C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reducing Respirable Dust Levels During Bag Conveying and Stacking Using Bag and Belt Cleaner Device

Description: Abstract: The U.S. Bureau of Mines has designed and tested a system called the Bag and Belt (leaner Device (B&BCD) to reduce dust levels in and around the bag conveying and stacking process. The device physically cleans either 22.7 kg (50 lb) or 45.4 kg (100 lb) paper bags by using a combination of brushes and air jets. It is completely self-contained and is kept under negative pressure by a baghouse to ensure that dust and product removed from the bags during cleaning does not flow into the wo… more
Date: 1995
Creator: Cecala, Andrew B.; Timko, Robert J. & Prokop, Alexander D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reduction Mills in Montana in 1925

Description: List of reduction mills in Montana, compiled in the course of investigations of mineral resources of Montana. It includes information about each loaction including: the process, character of ore, when the mill was operated, and custom work; equipment and power used; and capacity in tons.
Date: March 1927
Creator: Gerry, C. N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reduction of Air Pollutants from Gas Burner Flames: Including Related Reaction Kinetics

Description: From Abstract: "The concentrations of air pollutants and the flame temperatures were measured, and the effects of ingress of secondary air into the primary and secondary combustion zones, flame stability, burner port surface, and simulated recycling of combustion gases were noted."
Date: 1970
Creator: Harris, Margaret E.; Rowe, Valeria R.; Cook, E. B. & Grumer, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Reduction of Airborne Dust Generated by Roof Bolt Drill Bits Through the Use of Water

Description: Abstract: In the vast majority of American coal mines, roof bolt holes are drilled dry, mainly because of mine operator concern with the spent water creating adverse working conditions. Wet drilling, however, can increase drilling rates and the effective lifetime of the drill bits used. This study, carried out as part of an ongoing cooperative research program between the U.S. Bureau of Mines and the University of Missouri-Rolla, shows that the large volumes of water conventionally used in wet … more
Date: 1995
Creator: Sundae, Laxman S.; Summers, David A.; Wright, Douglas & Cantrell, Bruce K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reduction of Coal by Lithium-Ethylenediamine and Reaction of Model Compounds with Metal-Amine Systems

Description: From Introduction: "This report describes Bureau investigations on the effects and significance of treating coal and model compounds by lithium-ethylenediamine and some other metal-amine systems."
Date: 1964
Creator: Reggel, Leslie; Zahn, Charles; Wender, Irving & Raymond, Raphael
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Refining and Utilization of Georgia Kaolins

Description: From Introduction: "The investigation described in this report was carried on to determine the practicability of applying technical control of clay disperse systems to the refining of kaolins and the utilization of the prepared clay in the manufacture of vitreous china and wall tile."
Date: 1916
Creator: Sproat, Ira E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Refining of Light Petroleum Distillates

Description: From Scope of Report: "The first part of this report deals with the principal methods of refining light petroleum products, the equipment used, and the effects of the different refining agents. The second part of the report deals with a study of the value of fractionation as an aid to the refining of pressure distillates."
Date: 1930
Creator: Rue, H. P. & Espach, Ralph H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Regulation of Explosives in the United States: with Especial Reference to the Administration of the Explosives Act of October 6, 1917, by the Bureau of Mines

Description: From Origin of Federal Explosives Act, October 6, 1917: " A competent force from the Bureau of Mines was then assigned to study the laws and ordinances of countries, States, and municipalities in which lawas and ordinances regulating explosives have been enacted, and especially to ascertain how these laws had been modified by the necessities of the existing state of war, and, also, wherein the proposed law might conflict with or overlap the jurisdiction of existing laws. This incomplete enumera… more
Date: 1921
Creator: Munroe, Charles E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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