Pick box for housing a mineral cutter pick
AssigneeHydra Mining Tools International LTD
InventorsWilliam S. Clapham, John J. Warren
Life of this patent
Estimating the term…
Abstract
A “wet” pick box 1 comprises a body member 2, adapted in use to be welded to a rotary cutting head, whilst an aperture 5 is provided in the body member. Bores 15, 16 in the body member define an internal water course 6 connectable, at an inlet end 7, to a source of pressurised water; an aperture 8 in the body member is adapted to house a water discharge nozzle and is connected to an outlet end 9 of the watercourse 6. A tapped hole 10 intersects the bores 16 and a member 11A or 11B is insertable into, and removable from, the hole 10. The invention also includes a rotary mineral cutting head to which a plurality of such pick boxes are welded.
Claims10
A “wet” pick box for releasably housing a shank of a mineral cutter pick, the box comprising:
- (i) a body member, adapted in use to be secured to a rotary member, and having a front end and a rear end (having regard to the directions of rotation of the rotary member, in use);
- (ii) a first aperture in said body member corresponding cross-section to that of a sleeve or of a shank of a cutter pick intended, in use, to be inserted into said aperture;
- (iii) an internal water course in said body member defined by at least one bore and connectable, at an inlet end, to a source of pressurised water;
- (iv) a second aperture in said body member adapted to house a water spray nozzle and said second aperture and connected to an outlet end of said watercourse;
- (v) a hole intersecting said bore towards said rear end of said box, and
- (vi) a member insertable into, and removable from the hole and capable, in one mode, of permitting water flow, and in another mode blanking-off the bore and preventing water flow.
A rotary, mineral cutting head to which a plurality of pick boxes are welded, each pick box comprising:
- (i) a body member, adapted in use to be secured to a rotary member, and having a front end and a rear end (having regard to the directions of rotation of the rotary member in use);
- (ii) a first aperture in said body member corresponding cross-section to that of a sleeve or of a shank of a clutter pick intended, in use, to be inserted into said aperture;
- (iii) an internal water course in said body member defined by at least one bore and connectable, at an inlet end, to a source of pressurised water;
- (iv) a second aperture in said body member adapted to house a water spray nozzle and said second aperture and connected to an outlet end of said watercourse;
- (v) a hole intersecting said bore towards said rear end of said box, and
- (vi) a member insertable into, and removable from the hole and capable, in one mode, of permitting water flow, and in another mode blanking-off the bore and preventing water flow.
Dependencies are inferred from the claim text.