Public domain
Molten metal from blast furnaces arrives at the open hearth foundry where it is placed in a 600 ton mixing furnace, which maintains a temperature of 2100 degrees fahrenheit. The mixing furnace acts as a sort of thermos bottle, or ore storage tank. A worker is shown here preparing an open hearth furn
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Credit lineMolten metal from blast furnaces arrives at the open hearth foundry where it is placed in a 600 ton mixing furnace, which maintains a temperature of 2100 degrees fahrenheit. The mixing furnace acts as. 1941-01-01. United States. Office Of War Information, Palmer, Alfred T.. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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