Laboratory Studies of the Trent Process (open access)

Laboratory Studies of the Trent Process

Report issued by the U.S. Bureau of Mines detailing the laboratory-scale tests of the efficiency of the Trent process in cleaning coal, in which powdered coal, water, and oil is agitated or beaten together to remove impurities. The report includes details in tables detailing the efficiency varying the type and amounts of coal, oil, and water on the process.
Date: July 1921
Creator: Perrott, G. St. John & Kinney, Selwyne Perez
System: The UNT Digital Library
Method and Cost of Mining the Thick Freeport Coal in a Second Western Pennsylvania Mine (open access)

Method and Cost of Mining the Thick Freeport Coal in a Second Western Pennsylvania Mine

From introduction: The purpose of this paper is to present a detailed description of the methods employed and the equipment used, with the results obtained in the operation of this mine in the thick Freeport bed on the northern end of the field, near the Alleghegny-Butler county line in western Pennsylvania. It may be classed as a captive mine, as the largest portion of the product is consumed at the by-product plants of the parent company
Date: July 1929
Creator: Paul, James Washington & Tomlinson, H.
System: The UNT Digital Library
Ground-Water Monitoring in the Tucson Copper Mining District (open access)

Ground-Water Monitoring in the Tucson Copper Mining District

Abstract: Ground-water and tailings pond monitoring in the Upper Santa Cruz Basin Mines Task Force's Special Studies Area has been performed to determine the nature and extent of aquifer contamination from copper tailings pond's recharge in the basin. A monitoring program for each of three mining areas (Mines A, B, and D) was developed. Analysis of data shows that recharge from Mine A's ponds has caused increased hardness, sulfate and total dissolved solids in local ground water. However, pumpage in the area has controlled most of the water's movement. Pond recharge from Mine B has led to similar conditions, and the degraded water is moving towards a local public-supply well. Pumpage from Mine D's interceptor wells is controlling some, but not all, of the movement of recharge seepage from Mine D's ponds. Recommendations include the need for enhanced monitoring programs at each current mine site, development of a monitoring program for Mine C's area, development of water budgets for all mines, investigation of tailings pond compaction and sliming, establishment of mine closure plans for containment of recharged pond water, and the need for additional interceptor wells in several locations.
Date: July 1983
Creator: unknown
System: The UNT Digital Library
Geophysical Investigations for United States Atomic Energy Commission in the Colorado Plateau Area (open access)

Geophysical Investigations for United States Atomic Energy Commission in the Colorado Plateau Area

From introduction: The objective of the investigations is to test the usefulness of these geophysical procedures in connection with exploration for uranium-bearing mineral deposits.
Date: July 25, 1952
Creator: Wantland, Dart
System: The UNT Digital Library
Carbon Tetrachloride Extinguisher of Electric Fires (open access)

Carbon Tetrachloride Extinguisher of Electric Fires

Report discussing "the extent and nature of the hazards to firefighters from gases and smoke resulting from the application of carbon tetrachloride extinguisher to electric arcs, burning insulation or fires such as may occur in electrical apparatus and machinery. The experiments described were made for the purpose of determining the nature of gases and smoke and ascertaining their toxic properties" (p. 1).
Date: July 1923
Creator: Katz, S. H.; Gleim, E. J. & Bloomfield, J. J.
System: The UNT Digital Library
Approved Electric Lamps for Miners (open access)

Approved Electric Lamps for Miners

From introduction: "The Bureau of Mines calls attention to the dangers of open-flame lamps in any coal mine."
Date: July 1917
Creator: Clark, H. H. & Ilsley, L. C.
System: The UNT Digital Library
Oil-Shale: An Historical, Technical, and Economic Study (open access)

Oil-Shale: An Historical, Technical, and Economic Study

Report issued by the U.S. Bureau of Mines discussing studies conducted on the development of the oil-shale industry from a historical, technical, and economic perspective. Results of the studies are presented. This report includes tables, illustrations, and photographs.
Date: July 1922
Creator: Gavin, Martin J.
System: The UNT Digital Library
Peat-Bog Fires: Their Origin and Control (open access)

Peat-Bog Fires: Their Origin and Control

Report issued by the U.S. Bureau of Mines discussing peat-bog fires. As stated in the introduction, "this paper will serve a useful purpose in that it will afford an exchange of ideas with respect to procedure, equipment, and methods of controlling and extinguishing peat-bog fires" (p. 2). This report includes tables, photographs, and a map.
Date: July 1947
Creator: Parker, D. J.; Benson, J. B.; Cash, F. E. & Bird, J. H.
System: The UNT Digital Library
Annual Report of Research and Technologic Work on Coal: Fiscal Year 1946 (open access)

Annual Report of Research and Technologic Work on Coal: Fiscal Year 1946

Report issued by the U.S. Bureau of Mines discussing investigations of the research and technologic work done on coal during 1946. Mining methods, and properties of coal are presented. This report includes tables, illustrations, photographs, and maps.
Date: July 1947
Creator: Fieldner, Arno Carl & Ambrose, P. M.
System: The UNT Digital Library
Petroleum Refineries, Including Cracking Plants, in the United States, January 1, 1951 (open access)

Petroleum Refineries, Including Cracking Plants, in the United States, January 1, 1951

Report issued by the U.S. Bureau of Mines discussing the petroleum refineries in the United States during 1951. Locations and crude-oil capacities of the refineries are presented. This report includes tables, and a map.
Date: July 1951
Creator: Kirby, J. G.
System: The UNT Digital Library
National Motor-Gasoline Survey: Winter 1956-57 (open access)

National Motor-Gasoline Survey: Winter 1956-57

Report issued by the U.S. Bureau of Mines discussing surveys conducted on the motor gasoline sold during the winter of 1956-1957. The amount, location, and price of gasoline sold during this time are presented. This report includes tables, illustrations, and a map.
Date: July 1957
Creator: Blade, O. C.
System: The UNT Digital Library
Report on the Investigation by Fuels and Lubricants Teams at the I.G. Farbenindustrie A.G. Leuna Works, Merseburg, Germany (open access)

Report on the Investigation by Fuels and Lubricants Teams at the I.G. Farbenindustrie A.G. Leuna Works, Merseburg, Germany

Report issued by the U.S. Bureau of Mines discussing investigations of the Leuna Factory, a heavy chemical plant in Merseburg, Germany. Production details of the many substances produced at the plant are presented. This report includes tables, illustrations, and photographs.
Date: July 1945
Creator: Holroyd, R.
System: The UNT Digital Library
The Manufacture of Sulphuric Acid in the United States (open access)

The Manufacture of Sulphuric Acid in the United States

Report issued by the Bureau of Mines over the production of sulfuric acid. As stated in the introduction, "the present bulletin was prepared to cover the main facts in regard to the industry in this country, including a discussion of the supplies of sulfur-bearing raw materials, the situation of the acid plants, the principal points in regard to manufacturing processes, and the uses of the acid" (p. 2). This report includes tables, illustrations, photographs, and a map.
Date: July 1920
Creator: Wells, Arthur Edward & Fogg, Donald E.
System: The UNT Digital Library
Tests of a Powdered-Coal Plant: A Report of Investigations at the Power Plant of the St. Joseph Lead Co., Rivermines, Missouri (open access)

Tests of a Powdered-Coal Plant: A Report of Investigations at the Power Plant of the St. Joseph Lead Co., Rivermines, Missouri

Technical paper issued by the Bureau of Mines over tests conducted at the powdered-coal plant in Rivermines, Missouri. The results of boiler tests, dryer tests, and mill tests are discussed. This report includes tables, and illustrations.
Date: July 1923
Creator: Kreisinger, Henry; Blizard, John; Augustine, C. E. & Cross, B. J.
System: The UNT Digital Library
Underground Wastes in Oil and Gas Fields and Methods of Prevention (open access)

Underground Wastes in Oil and Gas Fields and Methods of Prevention

Technical paper issued by the Bureau of Mines over the underground wastes of oil and gas in drilling fields. As stated in the introduction, "the writers have endeavored to establish the manner and importance of underground waste by citing a few cases and to show the means whereby it can be prevented" (p. 5). This paper includes illustrations.
Date: July 1916
Creator: McMurray, William F. & Lewis, James O.
System: The UNT Digital Library
Gypsum Products: Their Preparation and Uses (open access)

Gypsum Products: Their Preparation and Uses

Technical report issued by the Bureau of Mines over the different uses of gypsum. The sources and uses of gypsum are presented and discussed. This report includes tables, photographs, and illustrations.
Date: July 1917
Creator: Stone, Ralph W.
System: The UNT Digital Library
Construction and Operation of a Single-Tube Cracking Furnace for Making Gasoline (open access)

Construction and Operation of a Single-Tube Cracking Furnace for Making Gasoline

Technical paper issued by the Bureau of Mines over the construction of cracking furnaces for gasoline production. Descriptions of the equipment used for construction are presented and discussed. This paper includes photographs.
Date: July 1915
Creator: Bowie, C. P.
System: The UNT Digital Library
Experiments with Furnaces for a Hand-Fired Return Tubular Boiler (open access)

Experiments with Furnaces for a Hand-Fired Return Tubular Boiler

Technical paper issued by the Bureau of Mines over tests conducted on hand-fired boiler furnaces. Testing equipment, fuel, and results of the experiments are presented. This paper includes tables, and illustrations.
Date: July 1914
Creator: Flagg, Samuel B.; Cook, George C. & Woodman, Forrest E.
System: The UNT Digital Library
Synthetic Liquid Fuels: Annual Report of the Secretary of the Interior for 1951; Part 1 - Oil from Coal (open access)

Synthetic Liquid Fuels: Annual Report of the Secretary of the Interior for 1951; Part 1 - Oil from Coal

Report issued by the Bureau of Mines over an annual study of synthetic liquid fuel production. Results of the annual study are presented and discussed. This report includes maps, tables, illustrations, and photographs.
Date: July 1952
Creator: unknown
System: The UNT Digital Library
National Motor-Gasoline Survey: Winter 1947-48 (open access)

National Motor-Gasoline Survey: Winter 1947-48

Report issued by the Bureau of Mines on the motor-fuels sold during the winter of 1947-1948. Characteristics of the fuel samples obtained are listed. This report includes tables, graphs, and a map.
Date: July 1948
Creator: Blade, O. C.
System: The UNT Digital Library
Zinc-Lead Ore Reserves of the Tri-State District, Missouri-Kansas-Oklahoma (open access)

Zinc-Lead Ore Reserves of the Tri-State District, Missouri-Kansas-Oklahoma

Report issued by the Bureau of Mines over studies of zinc-lead reserves in the tri-state area. The results of the studies are presented. This report includes tables, maps, and illustrations.
Date: July 1949
Creator: Ruhl, Otto; Allen, Simeon A. & Holt, Stephen P.
System: The UNT Digital Library
National Motor-Gasoline Survey: Winter 1948-49 (open access)

National Motor-Gasoline Survey: Winter 1948-49

Report issued by the Bureau of Mines over surveys conducted on the motor fuels sold during the winter of 1948-1949. The properties of the fuels sampled are presented. This report includes tables, graphs, and maps.
Date: July 1949
Creator: Blade, O. C.
System: The UNT Digital Library
Estimate of Known Recoverable Reserves and the Preparation and Carbonizing Properties of Coking Coal in Sequatchie County, Tennessee (open access)

Estimate of Known Recoverable Reserves and the Preparation and Carbonizing Properties of Coking Coal in Sequatchie County, Tennessee

Report issued by the Bureau of Mines over investigations of coking coal reserves of Sequatchie County, Tennessee. Testing to determine suitability for producing metallurgical coke is also presented. This report includes tables, graphs, maps, illustrations, and photographs.
Date: July 1955
Creator: Williams, Lloyd; Hershey, Robert E.; Abernethy, R. F.; Gandrud, B. W. & Reynolds, D. A.
System: The UNT Digital Library
Fundamental Flashback, Blowoff, and Yellow-Tip Limits of Fuel Gas-Air Mixtures (open access)

Fundamental Flashback, Blowoff, and Yellow-Tip Limits of Fuel Gas-Air Mixtures

Report issued by the Bureau of Mines over experiments conducted on fuel-gas mixtures. The results of these experiments are presented. This report includes tables, graphs, illustrations, and photographs.
Date: July 1956
Creator: Grumer, Joseph; Harris, Margaret E. & Rowe, Valeria R.
System: The UNT Digital Library