Mix house apparatus at Hercules Port Ewen plant - 4a6fbdaeb380d7e9043386f5d8b0b78d
Summary
General view of a rubber mat apparatus used to mix Pentaerythritol tetranitrate (PETN) with graphite for use in the electric blasting caps produced at the Hercules Powder Company plant in Port Ewen, New York. The apparatus was controlled by an employee operating a series of levers on the other side of the concrete wall to move the mechanical arms of the rubber mat. Notably, rubber was used to transfer and mix the explosive powder in order to avoid the hazard of metal, which might cause a spark or a shock. Formed in 1912 as part of an anti-trust settlement with DuPont, the Hercules Powder Company (later Hercules Inc.) specialized in the manufacture of explosives and smokeless powders. The company's Port Ewen plant produced a range of special detonators designed for military use, as well as construction jobs that required blasts of dynamite, such as the clearing of quarries, mines, and tunnels.
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