The outflow of a large (1.5m dia.) conical crusher is regulated by variation of the distance between the conical crushing head (1) and the conical seat it works against (5), which may be raised or lowered on a screw thread cut in the frame (4) of the machine. The crushing head (1) is operated by a driven rod (8) terminated in a ball joint set into the head carrier (9) which carries an ...
