Rack-driven mining machine with pivotal guide shoe

Details Rack-driven mining machine with pivotal guide shoe Rack-driven mining machine with pivotal guide shoe

1976-11-03

1978-01-10

Purser, Ernest R.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Sidewall-working

E21C 2922

Patent

active

040676200

ABSTRACT:
Described is a mining machine of the type which moves along a track or conveyor provided with a gear rack and wherein a driven gearwheel on the machine engages the rack to move the machine along the track. At least one skid is pivotally connected to the mining machine and bears upon and is guided by the rack, the pivotal connection of the skid to the machine being intermediate the ends of the skid. The gearwheel is fixedly mounted on the mining machine and extends through an opening in the skid to mesh with the gear rack whereby rotation of the gearwheel will cause the machine to traverse the track. The axis of rotation of the gearwheel lies in a vertical plane through which the pivotal axis of the skid extends whereby the skid can articulate along the rack without affecting the engagement of the gearwheel with the rack.

REFERENCES:
patent: 1711280 (1929-04-01), Morgan
patent: 4006937 (1977-02-01), Curtis

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