NEW COPPER WIRE DRAWING PLANT 



103 



matching, make this expense greater than the power charge with the 2% 

 greater sh'p. 



9 15 



TAKE-UP SHAFT SPEED 



Fig. 8 — Torque requirements of takeup motor with tension, friction and windage com- 

 bined for wire sizes No. 19 A.VV.G. and smaller 



TAKE-UP SHAFT SPEED 



Fig. 9 — Speed torque curves for takeup motor 



Inasmuch as it is economical to maintain dies within definite ratios of 

 reduction of area, by the same token it is also necessary to keep the diam- 

 eter of the capstan steps within like proportion. 



