Apparatus for drawing the shearers

Details Apparatus for drawing the shearers Apparatus for drawing the shearers

1977-03-07

1978-07-11

Purser, Ernest R.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Sidewall-working

299 50, E21C 2734

Patent

active

040997863

ABSTRACT:
Apparatus for drawing shearers comprises a conveyor on which the shearers move with sledges interposed therebetween and which is arranged along a long-walled pit face of a coal mine shearers drawing cable is arranged in fixing members which are arranged on the conveyor, and a pair of means are provided for releasing and fixing the cable from and into the fixing members, the means being arranged adjacent to the sledges and the cable located between the cable releasing and fixing means being engaged with a cable driving means housed in each of the shearer bodies, wherein a drawing force is applied only to the cable located between the cable releasing and fixing means when the driving means is rendered operative.

REFERENCES:
patent: 3409329 (1968-11-01), Dommann et al.
patent: 3753596 (1973-08-01), Pentith
patent: 4006937 (1977-02-01), Curtis

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