Smelting
Found in 3 Collections and/or Records:
Otto Duke papers
Mixed boxes consisting of materials relating to Otto Duke's career in mining engineering, as well as personal material, between 1919 and 1975.
Otto Duke papers on the United States Smelting, Refining, and Mining Company, 1924-1958
Includes diagrams and materials dealing with projects for the United states Smelting, Refining and Mining Company from 1924 to 1958, especially those in Alaska, Chicago, Torrence, CA, and Midvale, UT. Some of these projects include asphalt, turbine generators, tail sluice, dredge data, conveyors, a lead refinery, a zinc plant, and a crushing plant.