Rock breaking apparatus

Details Rock breaking apparatus Rock breaking apparatus

1975-07-18

1976-09-21

Purser, Ernest R.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Rotary cutter head with advance direction coincident or...

299 69, E21C 100

Patent

active

039815404

ABSTRACT:
An apparatus for breaking and cutting rock and similar materials is provided with one or more roller cutter constructions, each comprising an annular cutter rotatably mounted in a housing. Impact forces are applied directly to the cutter intermittently with a reciprocable hammer. The cutter mountings are constructed to permit the impact force to drive the cutting edge of the cutter into rock while substantially isolating the cutter mountings from the hammer impact and rock reaction forces.

REFERENCES:
patent: 698110 (1902-04-01), Foy
patent: 2763469 (1956-09-01), Burls
patent: 3151513 (1964-10-01), Rowlands
patent: 3306149 (1967-02-01), John
patent: 3718170 (1973-02-01), Caron et al.
patent: 3860292 (1975-01-01), Bechem

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