Gear rack for longwall mining machine

Details Gear rack for longwall mining machine Gear rack for longwall mining machine

1980-04-14

1981-12-29

Purser, Ernest R.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Sidewall-working

74422, 299 43, E21C 2902

Patent

active

043079156

ABSTRACT:
A gear rack for a longwall mining machine characterized in having a width permitting the arms which carry the cutter drums of the mining machine to move to lower positions relative to a face conveyor such that low seams of coal may be mined. The rack comprises a plate extending along the face conveyor and has driving pin extensions which extend from one face of the plate to engage a driving gear or gears on the mining machine.

REFERENCES:
patent: 4183585 (1980-01-01), Brennan

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