View of a worker closing the hydraulic press in the Rubber Compounding and Processing Laboratory at the Naval Air Experimental Station. This unit is a 200-ton capacity Williams-White Moline machine equipped with three 24" x 24" cored steam platens and pull-back pistons for rapid pressure release. At the laboratory, the hydraulic press was used to cure, i.e. toughen or harden, molded rubber articles. This photograph was included in a 1949 Naval Air Experimental Station report on compounding rubber.
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Naval Air Experimental Station, and United States. Navy. “Closing Operation on Hydraulic Press,” circa 1949. Photographs from the Papers of J. Hartley Bowen, Box 1. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/mc87pq29x.
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