Cutting machine

Details Cutting machine Cutting machine

1976-08-31

1978-07-04

Purser, Ernest R.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Cutter shiftable horizontally

299 86, 299 89, E21C 2724

Patent

active

040985393

ABSTRACT:
A cutting machine has at each side of a universally pivotable cutter boom a cutting head which is rotatably supported around an axis extending vertically to the longitudinal direction of the cutter boom and which is advanced in direction of its axis when the cutter boom is pivoted. The cutting heads are propelled by a drive unit via a reduction gearing arranged within the cutter boom, the last stage of the reduction gearing being arranged within cutting heads which are hollow.

REFERENCES:
patent: 2721733 (1955-10-01), Driehaus
patent: 2808253 (1957-10-01), Miller
patent: 2920879 (1960-01-01), Driehaus
patent: 3157438 (1964-11-01), Lundquist
patent: 3290096 (1966-12-01), Stalker
patent: 3773384 (1973-11-01), Anderson
patent: 3834763 (1974-09-01), Sigott

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