Search Results
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Inspecting feed to spinning machine at nylon pilot plant
- 1947-Feb
General view of technicians inspecting the feed to the two-position spinning machine used at the DuPont plant in Seaford, Delaware during the early stages of nylon production and research. The two cylindrical hoppers…
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Inspection of autoclave at DuPont facility
- 1947-Feb
General view of technicians inspecting an autoclave located in the Polymer Wing at a DuPont facility during the early stages of synthetic fiber production and research. The individuals visible in the photograph are…
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Screw and booster pumps used for production of synthetic fibers
- 1946-Nov-11
- 1947-Jan-06
Detail views of screw and booster pumps used during the early stages of synthetic fiber production and research at DuPont. The photographs are captioned "Figure 4--Experimental Melt-Pool Screw Pump" and "Figure…
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Inspection of staple drawing machine at DuPont facility
- 1947-Feb
General view of technicians inspecting the creel (a rack holding bobbins or spools for spinning) on a staple drawing machine used during the early stages of synthetic fiber production and research at DuPont. During the…
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Distillation units at DuPont facility
- 1947-Feb
General view of the distillation units located in the first floor Organic Laboratory at a DuPont facility during the early stages of synthetic fiber production and research. The individuals visible in the photograph are…
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Continuous polymerizer at DuPont facility
- 1947-Jan-07
General view of component parts, including a holding tank, flash tube, spinner, and finisher, of a continuous polymerizer used during the early stages of synthetic fiber production and research at DuPont.
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Continuous polymerizer at DuPont facility
- 1947-Jan-07
General view of component parts, including a holding tank, flash tube, condenser, and finisher, of a continuous polymerizer used during the early stages of synthetic fiber production and research at DuPont. The…
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Assorted machinery for production of melt
- 1947-Jan-07
General view of assorted machinery, including a holding tank, evaporator, and auxiliary steam boiler, used for batch wise production and storage of low dew point melt during the early stages of synthetic fiber…
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2 items
Two-position tire cord machine
- 1946-Nov-27
Two views of a two-position tire cord machine used during the early stages of synthetic fiber production and research at DuPont. The hot pin and hot plate tandem apparatus used to draw various fibers is visible in both…
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Steam-spinning apparatus
- 1946-Nov-11
Detail view of a steam-spinning apparatus with central booster pump on a Type-8 spinning machine used during the early stages of synthetic fiber production and research at DuPont. The photograph is captioned "Figure…
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Booster pump shaft
- 1946-Nov-11
Two views of a booster pump shaft used during the early stages of synthetic fiber production and research at DuPont. In the top image, an accumulation of polymer is visible on the shaft, while agitators are wrapped…
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Portrait of James A. Rafferty (1886-1951)
- 1940s – circa
Portrait of James A. Rafferty (1886-1951). Rafferty was born in Chicago, Illinois on May 4th, 1886 and studied engineering and chemistry at the Lewis Institute of Technology. Following his graduation from Lewis in 1908,…
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2 items
Steam and electric-heated spinning grids
- 1946-Nov-11
Two close-up views of an electric-heated grid and steam-spinning grid and block assembly used during the early stages of synthetic fiber production and research at DuPont. The photographs are captioned "Figure 1" and…
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Electric immersion heater
- 1946-Nov-11
Close-up view of an electric immersion heater used during the early stages of synthetic fiber production and research at DuPont. The photographs is captioned "Figure 3," indicating that it appeared in a report or…
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Tandem hot-pin hot-plate draw system
- 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…
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50-pound autoclave used for production of polymers
- 1946-Sep
General view of a 50-pound autoclave first used for the production of "Fiber V," later branded as Dacron polyester fiber, at a DuPont semiworks facility. During production, a partially-evaporated salt solution was fed…
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Roll crimper and puller for synthetic fibers
- 1946-Sep
General view of a roll crimper and puller used at DuPont during the early stages of synthetic fiber production and research. Typically, such machinery was used to stretch, strengthen, and crimp textile fibers.
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Roll crimper for synthetic fibers
- 1946-Sep
General view of a roll crimper used to crimp textile fibers during the early stages of synthetic fiber production and research at DuPont. As visible in this photograph, fibers entered the machine via drive pulleys and…
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Coiler mechanism for synthetic fibers
- 1946-Sep
General view of a coiler mechanism used at DuPont during the early stages of synthetic fiber production and research. Typically, this type of apparatus was used to coil tow, an untwisted bundle of continuous filaments,…
- Subject Nylon, E.I. du Pont de Nemours & Company, Machinery
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Coiler head assembly for synthetic fibers
- 1946-Sep
Detail view of a coiler head assembly mechanism used at DuPont during the early stages of synthetic fiber production and research. Typically, this type of apparatus was used to coil tow, an untwisted bundle of…
- Subject Nylon, E.I. du Pont de Nemours & Company, Machinery
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Assorted apparatus used for the production of nylon
- 1946-Aug-09
Assorted apparatus and component parts, including a magnetic switch, mercury plunger, and rupture diaphragm, used during the early stages of nylon production and research at DuPont.
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Continuous shaft drawtwister for nylon
- 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…
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2 items
Staple crimpers for synthetic fibers
- 1946-Mar-31
Two views of staple crimpers used at DuPont during the early stages of synthetic fiber production and research. During production, a tow (an untwisted bundle of continuous filaments) was fed between two serrated rolls…
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Spinneret and pack equipment for nylon
- 1946-Mar-31
General view of a spinneret (front row, second from left) and assorted pack equipment, including a filter screen and gasket, used during the early stages of nylon production and research at DuPont. During production, a…
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Hot relaxing plates on drawing machine
- 1946-Feb-46
Close-up view of two hot relaxing plates on a drawing machine used at the DuPont plant in Seaford, Delaware during the early stages of synthetic fiber production and research. The plate on the left, labelled "Electric,"…
