US2174116A - Stone crusher - Google Patents
5. In a stone crusher, the combination of a frame, a pair of parallel shafts, `one rotating in fixed bearings and the other in slidable bearings permitting movement of the same toward and from the first-named shaft, a rotary crushing roll first-named shaft, an eccentric on the second-named shaft, a drum surrounding the eccentric and rotatable frictionally in engagement with and also ...
