Longwall mining machine with pivotal body adjustment

Details Longwall mining machine with pivotal body adjustment Longwall mining machine with pivotal body adjustment

1975-02-10

1976-05-04

Purser, Ernest R.

Mining or in situ disintegration of hard material

Automatic control; signaling or indicating

Of hard material disintegrating machine

299 43, 299 54, E21C 3506

Patent

active

039542998

ABSTRACT:
A ranging drum mining machine has its cutting end gearbox pivotally mounted in trunnions for pivotal movement about an axis transverse to the axis of pivotal movement of the ranging arm.

REFERENCES:
patent: 3854775 (1974-12-01), Anderson

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