Overhead view of the first drawing machine used at DuPont's Buffalo plant during the early stages of nylon production and research. In this technique, which generally was unsuccessful, undrawn yarn was pre-twisted by the bobbin visible on the far right and then cold drawn in two stages.
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“First Drawing Machine at DuPont Buffalo Plant,” circa 1936. Joseph X. Labovsky Collection of Nylon Photographs and Ephemera, Box 1. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/zs25x8517.
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