View of a worker cutting rubber stock from the mixing mill at the Naval Air Experimental Station's Rubber Compounding and Processing Laboratory. At the laboratory, the mill was used to mix rubber stocks or warm mixed stocks for subsequent processing. This photograph was included in a 1949 Naval Air Experimental Station report on compounding rubber.
United States. Navy, and Naval Air Experimental Station. “Cutting Operation for Cross Blending of Ingredients,” circa 1949. Photographs from the Papers of J. Hartley Bowen, Box 1. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/n583xv045.
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