Close-up view of the third continuous spinning machine used during the early stages of nylon production and research at the DuPont Experimental Station in Wilmington, Delaware, with a view of the side-flow chimney and diminishing traverse. During production, nylon chips were fed into the pipe hopper at the top of the machine and then dropped onto a hot grid, where they melted. The melt subsequently flowed through a booster pump designed to help eliminate gas bubbles and ultimately was extruded through a spinneret to form filaments. Finally, the filaments were processed through a steam chimney and wound onto a bobbin at the rate of 1,000 feet per minute.
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“Third Continuous Spinning Machine with Side-Flow Chimney and Diminishing Traverse,” June 1, 1937. Joseph X. Labovsky Collection of Nylon Photographs and Ephemera, Box 1. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/9880vq990.
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