Conveyor mounted vehicle

Details Conveyor mounted vehicle Conveyor mounted vehicle

1978-12-15

1980-12-23

Purser, Ernest R.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Stepper-type advance-causing means

105161, 299 43, 299 64, E21C 3520, E21C 3506

Patent

active

042406650

ABSTRACT:
A track-mounted vehicle having legs which can be retracted or extended, so that the vehicle can be raised to permit advancement of the track and then lowered, the vehicle either being raisable off the track to permit advancement, or having captivating means by which the track is raised, together with the vehicle, the track and the vehicle having rack-and-pinion or rack-and-chain drive means so that, in the raised position, the track can be advanced by said drive means and, in the lowered position, the vehicle is movable along the track by said drive means.

REFERENCES:
patent: 1364903 (1921-01-01), Thomas
patent: 1879446 (1932-09-01), Page
patent: 2239578 (1941-04-01), Sloane
patent: 2800970 (1957-07-01), Barrett
patent: 2935309 (1960-05-01), McCarthy
patent: 3576225 (1971-04-01), Chambers
patent: 3866425 (1975-02-01), Morrice

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