Three views of a nylon drawing machine and creel (a rack holding bobbins or spools for spinning) used at the DuPont plant in Seaford, Delaware during the early stages of nylon production and research.

Close-up view of the wrap scraper blade on a drawing machine used at the DuPont plant in Seaford, Delaware during the early stages of nylon production and research.

Two views of 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 was electric-heated and the…

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…

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…

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…

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.

Assorted apparatus, including a Fenwal Thermoswitch and Thermoregulator, H-B Mercury-in-glass Thermostat, and Scaico Thermostat, used during the early stages of synthetic fiber production and research at DuPont.…

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…

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…

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,…

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.

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…

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…

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…

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…

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…

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…

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…

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…

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…

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.

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…

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…

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…