Cutter inserts for picks
AssigneeHuddy Diamond Crown Setting Company (Proprietary) Limited
InventorWilliam D. Collin
Life of this patent
Estimating the term…
Abstract
A stud for use in a mining pick is disclosed which has a tip consisting of a polycrystalline diamond composite and a body having a carrying surface on which the tip is mounted, the carrying surface being inclined to the axis of the body by an angle of between 45.degree. and 65.degree.. In an embodiment of the invention, the stud is received within a pocket and the head of a mining pick, the axis of the pocket in the head axis of the mining pick being substantially coincident, and the mining pick having a shank adapted to be received within the box of a mining machine. The stud may be provided with side extensions adjacent to the composite to protect the material of the mining pick body.
Claims15
A stud for use in a mining pick comprising
- (a) a tip consisting of a polycrystalline diamond composite and having a cutting face and
- (b) a body having two ends between which extends an axis, the body comprising a lower portion extending from one end of the body and a carrying surface at the other end of the body on which carrying surface the tip is mounted
- in which the carrying surface is inclined to the axis of the body by an angle of between 45.degree. and 65.degree..
A mining pick comprising
- (a) a shank adapted to be received within a box of mining machine, the shank having a central axis,
- (b) a head extending from the shank, the head having an axis entending from substantially the intersection between the axis of the shank at the place where the head meets the shank to one extremity of the head,
- (c) a pocket having an axis in the head at its end remote from the shank and extending with the pocket axis substantially coincident with the head axis of the mining pick, and
- (d) a stud for use in the said mining pick comprising
- (i) a polycrystalline diamond composite tip and
- (ii) a cylindrical body having a carrying surface which is inclined to the axis of the body by an angle of between 45.degree. and 65.degree. and on which the tip is mounted, the body being received within the pocket.
A pick comprising a shaft adapted to be received within a box of a mining machine and a head extending therefrom, the head having a head axis, the head also having a cylindrical pocket at its end remote from the shank, which pocket has an axis that extends substantially coincident with the head axis of the mining pick and received in the pocket a stud having a cylindrical body and a tip, the tip having a polycrystalline diamond composite cutting face in the shape of a segment of a circle, the cylindrical body having an axis and the cutting face being inclined to the axis of the body by an angle of between 45.degree. and 65.degree..
Dependencies are inferred from the claim text.