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Subject Nylon--Testing Remove constraint Subject: Nylon--Testing

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    • 1947-Mar

    General view of a continuous denier meter used to measure the denier, or thickness, of filaments during the early stages of synthetic fiber production and research at DuPont. The spool of yarn to be measured is visible…

    • 1946-Oct-25

    Close-up view of a tandem hot-pin hot-plate draw system used at DuPont during the early stages of synthetic fiber production and research. The photograph has been marked with several hand-drawn lines to depict the…

    • 1946-Jun

    Close-up view of a continuous shaft drawtwister used during the early stages of nylon production and research at DuPont. As part of the cold-drawing process, drawtwisters were used to stretch the nylon filaments…

    • 1938-Jul-15

    General view of a five-position windup machine located on the ground floor of the Spinning Room at the DuPont pilot plant in Wilmington, Delaware during the early stages of nylon production and research.

    • 1938-Jul-15

    General view of the second floor of the Spinning Room during the early stages of nylon production and research at the DuPont pilot plant in Wilmington, Delaware. Visible on the left-hand side of the photograph are steam…

    • 1938-Mar-08

    General view of a two-position vertical windup machine used during the early stages of nylon production and research at the DuPont Experimental Station in Wilmington, Delaware.

    • 1938

    Violet Grenda inspecting nylon yarn at an unidentified DuPont facility during the early stages of nylon production and research.

    • 1938-May-18

    Close-up view of a gear crimping machine used during the early stages of nylon production and research at the DuPont Experimental Station in Wilmington, Delaware. This machine was likely used for the testing and…

    • 1937 – 1938

    General view of Fiber W crimping machine and relaxer used during the early stages of nylon production and research at the DuPont Experimental Station in Wilmington, Delaware. Fiber W was a wool-like version of nylon…

    • 1937-Mar-25

    Detail view of a glass spinning cell used during the early stages of nylon production and research at the DuPont Experimental Station in Wilmington, Delaware. In this design, the nylon polymer was melted in the glass…

    • 1937-Mar-25

    General view of a glass spinning cell used during the early stages of nylon production and research at the DuPont Experimental Station in Wilmington, Delaware. In this design, the nylon polymer was melted in the glass…

    • 1938-Aug-24

    General view of a melt viscometer used during the early stages of nylon production and research at the DuPont Experimental Station in Wilmington, Delaware. This machine was used to measure the melt viscosity and…

    • circa 1938

    Two detail views of the BJ-4 Drawtwister used during the early stages of nylon production and research at the DuPont pilot plant in Wilmington, Delaware showing the relocation of the draw pin string-up. The photographs…

    • 1938-Jul-15

    Detail view of the BJ-4 Drawtwister used during the early stages of nylon production and research at the DuPont pilot plant in Wilmington, Delaware. As part of the cold-drawing process, drawtwisters were used to stretch…

    • 1938-Jul-15

    General view of the BJ-4 Drawtwister used during the early stages of nylon production and research at the DuPont pilot plant in Wilmington, Delaware. As part of the cold-drawing process, drawtwisters were used to…

    • 1937-Nov-08

    General view of a 250-pound autoclave and polymer casting equipment used during the early stages of nylon production and research at the DuPont Experimental Station in Wilmington, Delaware. During production, a…

    • 1937-Mar-26

    Close-up view of a 50-pound autoclave and polymer casting equipment used during the early stages of nylon production and research at the DuPont Experimental Station in Wilmington, Delaware. During production, a…

    • 1937-Feb-12

    General view of a 50-pound autoclave and polymer casting equipment used during the early stages of nylon production and research at the DuPont Experimental Station in Wilmington, Delaware. During production, a…

    • circa 1938

    Two views of C.F. Wells casting polymer from a 250-pound autoclave during the early stages of nylon production and research at the DuPont Experimental Station in Wilmington, Delaware. During production, a…

    • circa 1938

    View of two DuPont technicians casting polymer from a 250-pound autoclave during the early stages of nylon production and research at the DuPont Experimental Station in Wilmington, Delaware. During production, a…

    • 1937-Nov-08

    General view of the top of a 250-pound autoclave used during the early stages of nylon production and research at the DuPont Experimental Station in Wilmington, Delaware. During production, a partially-evaporated nylon…

    • 1937-Nov-05

    General view of the fourth spinning machine and chain traverse windup used during the early stages of nylon production and research at the DuPont Experimental Station in Wilmington, Delaware. Per the recollections of…

    • 1937-Jun-01

    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…

    • 1937-May-14

    General 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. This machine became the prototype for the…

    • 1936-Oct-02

    Close-up view of the second continuous spinning machine used during the early stages of nylon production and research at the DuPont Experimental Station in Wilmington, Delaware. This machine notably included a swing-arm…