NEW COPPER WIRE DRAWING PLANT 



97 



view of this machine. The design features outlined in the following text 

 deal largely with the No. 2 Machine. Similar features are incorporated in 

 the No. 1 Machines and reference is made to changes in design applicable 

 only to that machine. 



The Problem 



Continuity of operation is essential to higher drawing speeds; therefore, 

 wire should be delivered in as large a unit package as practicable to secure 



No. 1 wire drawing machine — rear view 



this continuity with a minimum of scrap at the subsequent operations. A 

 survey of the wire using equipment showed that reels as large as 18" 

 diameter could be used with a capacity of 400 lbs. of wire. This requires 

 that a suitable drive be introduced on the reel takeups of the wire drawing 

 machines to allow for gradual deceleration of speed as the reels fill up with 

 wire. 



The drive for the takeup reel should be capable of producing a uniform 

 tension in the wire as taken up for its entire length on the reel. This tension 



