Mining or in situ disintegration of hard material – Hard material disintegrating machines – Cutter shiftable vertically
Patent
1985-08-05
1987-06-02
Novosad, Stephen J.
Mining or in situ disintegration of hard material
Hard material disintegrating machines
Cutter shiftable vertically
299 78, E21C 2724
Patent
active
046697861
ABSTRACT:
A core breaker comprising a plurality of bits mounted on a suitable support and capable of being readily replaced when the bit becomes worn or damaged during the breaking of a core which is left between the conventional rotating cutter drums of a motorized coal cutting machine.
REFERENCES:
patent: 3279856 (1966-10-01), Silks
patent: 3712679 (1973-01-01), Amoroso
patent: 4316636 (1982-02-01), Taylor et al.
McKinney Janet F.
Morgan Vernon B.
Cyr Frank P.
Novosad Stephen J.
Odar Thomas J.
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