4io 



CHAPTER XX 



the suspended machine, the credit for which is due to Bessemer, and to 



whose design the latest types of solid spindle machines tend to revert. 



Fig. 256 which represents a belt-driven Weston centrifugal, independent 



C.F. 



176. 



FIG. 256 



of certain refinements of recent introduction, referred to later. The 

 machine is suspended from a girder, C.F., by the socket S.B., which contains 

 an india-rubber or elastic bushing, E.B., in which the solid stationary spindle 

 I.S. is held. At the lower part of this spindle is placed a series of washers, 

 A.W,, supported by the screw nut D.N. The outer hollow rotating spindle 



