MANUFACTURING LEAD-COVERED TELEPHONE CABLE 331 



wire detector as the insulation sometimes parts after passing through 

 the sizing die or polisher as it is called, separates for a few inches and 

 then picks up and goes on. Many electrical devices have been tried 

 and practically all have the objection of high maintenance cost. A 



Fig. 8 — Paper insulating head 



very simple and effective remedy was the installation of a second 

 polisher placed between the capstan and take-up spool which catches 

 broken paper and pushes it back until the operator sees and repairs it. 

 The insulating machine used for heavy gauge wire is an eight-head 

 machine built along the same general lines as the ten-head machine. 

 This is illustrated in Fig. 9. 



