Method of and apparatus for controlling advance of underground a

Details Method of and apparatus for controlling advance of underground a Method of and apparatus for controlling advance of underground a

1977-02-14

1978-06-06

Purser, Ernest R.

Mining or in situ disintegration of hard material

Automatic control; signaling or indicating

Of hard material disintegrating machine

33125R, 73 21, E21D 1548

Patent

active

040933091

ABSTRACT:
In controlling advance of an armoured conveyor in an underground mine, detector means detect the advance of different conveyor sections and control means control current and/or subsequent advances of the conveyor in relation to the detected advances.

REFERENCES:
patent: 3248794 (1966-05-01), Corry
patent: 3322465 (1967-05-01), Crom et al.
patent: 3531159 (1970-09-01), Schmidt
patent: 3812589 (1974-05-01), Schutheis

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