WORKING MEMBER OF EARTH-MOVING MACHINE Russian patent published in 1998 - IPC

FIELD: mechanical engineering; earth-moving machinery. SUBSTANCE: working member has rotor with radial guides and spring loaded knives fitted in guides. It has also tracer arranged in rotor space. Tracer is made in form of cylinder with ring slots with gear rims on one side of slots for engagement with gear rims of tail parts of knives getting into slots. Tracer rotates at speed differing from speed of rotor which provides sawing action. EFFECT: enhanced reliability of operation. 1 dwg