Retouched photograph with a general view of an extruder used at the Hercules Powder Company plant in Parlin, New Jersey. Extruders were commonly used to process and shape a variety of raw materials produced at the plant, including ethyl cellulose, nitrocellulose, and cellulose acetate. Per an article from the July 1951 edition of Modern Plastics detailing the extrusion process at the Parlin plant, this twin-screw compounding-extruder was manufactured by Welding Engineers Inc., Machinery Division, in Norristown, Pennsylvania.
Formed in 1912 as part of an anti-trust settlement with DuPont, the Hercules Powder Company (later Hercules Inc.) initially specialized in the manufacture of explosives and smokeless powders and subsequently diversified its business to encompass a variety of industrial products, including pine and paper chemicals, synthetics, pigments, polymers, and cellulose.
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Hercules Incorporated. “Extruder at Hercules Parlin Plant,” May 1, 1951. Photographs from the Records & Ephemera of Hercules Incorporated, Box 2, Folder 25. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/5h73px061.
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