Impacting rock breaker

Details Impacting rock breaker Impacting rock breaker

1979-12-13

1981-07-14

Purser, Ernest R.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Percussive-type cutter

173 94, 299 37, E21C 2728, A01B 3500

Patent

active

042782953

ABSTRACT:
PCT No. PCT/US79/01087 Sec. 371 Date Dec. 13, 1979 Sec. 102(e) Date Dec. 13, 1979 PCT Filed Dec. 13, 1979
An impactor (10) having a fracturing portion (11) including a crank (12) and a force transferring structure (13). The force transferring structure (13) is hammered as a result of rotation of the crank (12) by a hammer (14) rotatably mounted to the crank for concurrent revolution about the crank axis (16) and rotation about a hammer axis (24). The hammer is rotated in synchronization with the crank to move a contacting portion (20) of the hammer reciprocatively toward and from the force transfer structure (13) with contact between the hammer and force transfer structure being free of rolling movement therebetween.

REFERENCES:
patent: 1707887 (1929-04-01), Wagner
patent: 2584330 (1952-02-01), Craig
patent: 3770322 (1973-11-01), Cobb et al.
patent: 3868145 (1975-02-01), Cobb et al.
patent: 3922017 (1975-11-01), Cobb

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