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BELL SYSTEM TECHNICAL JOURNAL 



runs at 1500 to 2000 feet per minute as compared with 470 square feet 

 for a commercial nine die machine running about 1000 feet per minute. 

 A battery of these machines costs much less than an installation of 

 commercial machines of the same capacity, and in addition effects a 

 considerable economy in floor space. 



Fig. 12 — Close-up of No. 1 machine 



The commercial types of ten die intermediate machines for drawing 

 cable wire require about 130 square feet of floor space as compared to 

 90 square feet for a twelve die multiple head machine. The former is a 

 single unit machine and the latter a four unit machine operating at 

 twice the speed and capable of producing about five times the output 

 of the commercial equipment. This new multiple unit machine, Fig. 

 12A, costs more than regular equipment, but considering the four units, 

 the cost is materially less per unit, and very much less on an output 

 basis. 



