ARMATURE LAMINATIONS 



53 



the throat of the press is 18 inches deep, the internal slotting of 

 segments and rings up to that radial depth is possible. 



It is obvious that 

 there is no upper limit 

 as regards diameter, as 

 the machine will take in 

 work of any curvature 

 up to a straight line, and 



without Sacrifice of floor FIG. 49. Drawing showing Segment Notched 



space. 



Allusion has already been made to the great pressures required 

 for compound dies, and, in the example worked out for a compound 



FIG. 50. Geared Armature Disc-cutting Press. 



die for punching discs of the dimensions shown in Fig. 23, this 

 amounted to 240 tons. 



