Mounting arrangements for mineral displacing tools

Details Mounting arrangements for mineral displacing tools Mounting arrangements for mineral displacing tools

1976-02-06

1977-08-09

Foss, J. Franklin

Supports

Pipe or cable

Extending through plate

173 43, E21C 1102, F16M 1300

Patent

active

040405842

ABSTRACT:
A mounting arrangement for a mineral displacing tool comprises a carrier for the tool and pivot means pivotally securing the carrier to a support. A link member is attached at one end to the pivot means, and first and second pressure-fluid-operated rams are pivotally connected to act between the other end of said link means and the carrier and the support, respectively. Each ram serves to extend the arc of slewing of the carrier with respect to the support attainable by means of the other ram. Preferably, one of the rams is arranged to slew the carrier in a clockwise direction from a given position, and the other of the rams is arranged to slew the carrier in a counter-clockwise direction from the given position.

REFERENCES:
patent: 3056465 (1962-10-01), Gerrans
patent: 3493200 (1970-02-01), Huffman
patent: 3565184 (1971-02-01), Gustafsson
patent: 3721304 (1973-03-01), Hanson
patent: 3868076 (1975-02-01), Beagan
patent: 3915501 (1975-10-01), Cobb

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