US5540393A - Gyrasphere crusher with bladder operated bowl ...
A gyrasphere crusher includes a crusher frame, a crushing head, and a crusher bowl which is selectively locked to and released from the crusher frame via operation of a bowl lock assembly including a clamping ring or locknut and an inflatable bladder device. The bladder device, which preferably is formed from a plurality of discrete bladder segments mounted on an axial end of the locknut ...