Point attack tooling system for mineral winning

Details Point attack tooling system for mineral winning Point attack tooling system for mineral winning

1998-08-20

2000-08-08

Lillis, Eileen Dunn

Mining or in situ disintegration of hard material

Cutter tooth or tooth head

Wear shield or replaceable wear sleeve

299 791, 299 811, 299 813, 299 852, E21C 3518, E21C 35183, E21C 35197

Patent

active

060990813

ABSTRACT:
A pick box (1) of a tooling system for mineral winning etc., has an elongated aperture (4) to receive, in use, a removable liner sleeve (6) of the tooling system, the box (1) providing a seating surface (7) extending orthogonally with respect to the axis (5) of the aperture (4). The external periphery of the sleeve (6) and the internal periphery (8) of the box aperture (4) are so profiled, e.g. hexagonally, as to prevent relative rotation and the internal periphery of the box aperture is interrupted at (11) to provide at least one surface for engagement, in use, with a retainer device (12) of an inserted sleeve (6), whilst the sleeve has an external groove (22) to receive a retainer device (12). The invention also includes a sleeve (6) having an enlarged head (16), a longitudinal circular bore (26), and a circumferential groove (22) fitted with a retainer ring (12). The invention further includes a box (1) and a sleeve (6) in combination, and a drum (3).

REFERENCES:
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patent: 4678238 (1987-07-01), Emmerich
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patent: 5106166 (1992-04-01), O'Neill
patent: 5232322 (1993-08-01), Regensburger
patent: 5628549 (1997-05-01), Ritchey et al.
patent: 5730502 (1998-03-01), Montgomery, Jr.

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