Cutting machine

Details Cutting machine Cutting machine

1977-05-13

1978-08-22

Purser, Ernest R.

Mining or in situ disintegration of hard material

Automatic control; signaling or indicating

Of hard material disintegrating machine

299 75, E21C 2720

Patent

active

041084942

ABSTRACT:
A cutting machine having a universally movable cutting arm and cutting head assembly and a movable loading ramp assembly thereunder and means operatively associated with the cutting arm and loading ramp for controlling the operation thereof so as to prevent contact between the cutting arm and loading ramp by maintaining the vertical spacing therebetween in excess of a predetermined minimum.

REFERENCES:
patent: 2136921 (1938-11-01), Joy
patent: 2376019 (1945-05-01), Thomas
patent: 3094221 (1963-06-01), Galuska
patent: 3169797 (1965-02-01), Lundquist
patent: 3724559 (1973-04-01), Stromnes
patent: 3920217 (1975-11-01), Olsen
patent: 3942752 (1975-12-01), Hoofnagle

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