Abstract: A grader blade mounted to a support frame has an auger-grinder mounted ahead of the grader blade. The auger-grinder has a first helical vane fixed to a rotatable axle with a plurality of teeth attached to and protruding outwardly from the auger. A shroud above and partially surrounding the auger-grinder has an inner shroud end wall, an outer shroud end wall and bearings in which the axle is journaled transverse to the direction of travel. A beater is fixed to the axle between an inner end of the helical vane and the inner wall. The beater has a plurality of paddles extending outwardly from the axle. An inner barrier wall is attached to the inner shroud wall and extends forward of the auger-grinder. A drive link is connected to the axle for connection to a prime mover for driving the axle in rotation.

Abstract: A grader blade mounted to a support frame has an auger-grinder mounted ahead of the grader blade. The auger-grinder has a first helical vane fixed to a rotatable axle with a plurality of teeth attached to and protruding outwardly from the auger. A shroud above and partially surrounding the auger-grinder has an inner shroud end wall, an outer shroud end wall and bearings in which the axle is journaled transverse to the direction of travel. A beater is fixed to the axle between an inner end of the helical vane and the inner wall. The beater has a plurality of paddles extending outwardly from the axle. An inner barrier wall is attached to the inner shroud wall and extends forward of the auger-grinder. A drive link is connected to the axle for connection to a prime mover for driving the axle in rotation.