Mining or in situ disintegration of hard material – Miscellaneous
Patent
1987-12-08
1988-10-11
Massie, Jerome
Mining or in situ disintegration of hard material
Miscellaneous
175413, 403378, 407 47, 407102, E21B 1062, E21C 2744
Patent
active
047766395
ABSTRACT:
A tool assembly for mining machines and particularly for coal planes or coal cutting machines comprises a cutter which has a shank portion which is engaged to a seat of a size comparable to the shank portion of a cutter holder and it is held in that position by a locking pin which extends through aligned bores of the holder and the shank portion which may be retracted into a knockout slot defined in the shank portion which is closed on each side by a portion of the cutter holder in an arrangement in which the locking pin may be retracted into the knockout slot for removal of the cutter.
REFERENCES:
patent: 3904247 (1975-09-01), Ostrop
patent: 4609227 (1986-09-01), Wild et al.
Braun Ernst
Braun Gert
Bagnell David J.
Halbach & Braun Industrieanlagen
Massie Jerome
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