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Start Over You searched for: Date 1938 Remove constraint Date: <span class="single" data-blrl-single="1938">1938</span>-
Five-position windup at nylon pilot plant
- 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.
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Spinning room at nylon pilot plant
- 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…
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Two-position vertical windup at DuPont Experimental Station
- 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.
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Gear crimping machine at DuPont Experimental Station
- 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…
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Fiber W crimping machine and relaxer
- 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…
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Melt viscometer at DuPont Experimental Station
- 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…
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Detail view of draw pin string-up arrangement at nylon pilot plant
- 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…
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Detail view of BJ-4 Drawtwister at nylon pilot plant
- 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…
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BJ-4 Drawtwister at nylon pilot plant
- 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…
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2 items
C.F. Wells casting polymer from 250-pound autoclave
- 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…
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Casting polymer from 250-pound autoclave
- 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…
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Apparatus at Fixed Nitrogen Research Laboratory
- 1930s
General view of an unidentified apparatus, possibly a pump or compressor, used at the U.S. Department of Agriculture's Fixed Nitrogen Research Laboratory located in Washington, D.C.
The Fixed Nitrogen Research…
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Coleman Model 3D pH Meter
- 1938
Self contained pH meter with wooden exterior; hinged top door opens to reveal meter face and inlaid paper instructions for use; the double scale reads pH and millivolts; hinged door on left side of wooden case opens to…