Disc cutters for rock working machines

Details Disc cutters for rock working machines Disc cutters for rock working machines

E - Fixed Constructions

21

B

255/72

E21B 10/00 (2006.01) E21B 10/12 (2006.01) E21D 9/10 (2006.01)

Patent

CA 1282054

ABSTRACT A hardmetal ring is a size for size or low interference fit on the body of a disc cutter of a rock working machine, such as a boxhole borer, In one embodiment the ring is gable shaped and clamped between a fixed annular shoulder and a detachable annular shoulder. In another embodiment the ring is triangular in section and two annular shoulders resting on it and inclined surfaces on the body clamp the ring to the body.

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