INSULATION OF WIRE WITH PAPER PULP 



93 



lation is dried in approximately 11 seconds. Since in case of a shutdown 

 the wire is immediately burned oflf, a band of nichrome tape is kept in the 

 furnace at all times so that the wires can be tied to it and carried through 

 for restringing. Broken wires are strung in by tying them to adjacent 

 wires to be carried through. 



Reeling up the Finished Wire 



Because it is necessary to shift from full to empty spools without shutting 

 down the machine, dual take-up positions are supplied just as dual feed 



Fig. 8 — Insulated wire take-up 



positions are used. The take-up spools are rotated through a slipping disc 

 clutch, the pressure on the clutch being controlled by the tension in the wire. 

 Before reaching the take-up spool the wire is passed over a tension drum 

 made up of two capstan pulleys separated by a movable housing enclosing 

 and fastened to a coiled clock spring. By running the wire first around one 

 pulley then reversing it by passing it around a pulley on the spring housing 

 and then around the second capstan pulley any tension variation in the wire 

 causes the spring housing to rotate. The rotation of this housing is com- 



