Reduced length vehicle conveyor

Details Reduced length vehicle conveyor Reduced length vehicle conveyor

1975-10-30

1977-08-30

Spar, Robert J.

Railways

Traction

Chain

198732, B61B 1312

Patent

active

040446867

ABSTRACT:
A vehicle conveyor is provided with an upper wheel engaging active track and a lower inactive track. Rollers can be moved up by a roller up guide into the active track to engage the wheel of a vehicle for moving the vehicle along a path. The length of the conveyor is reduced by providing a roller down guide which can remove a roller from the active track along the length of the conveyor and by cycling the rollers such that the first roller on the active track engages the front wheel of a vehicle until the rear wheel of the vehicle is beyond the roller up guide, then an additional roller is raised to the active track behind the rear wheel of the vehicle and the first active roller is removed from the active track. Consequently, the vehicle is first moved by engagement by its front wheel and subsequently moved by engagement with its rear wheel to reduce the length of the conveyor.

REFERENCES:
patent: 3681805 (1972-08-01), Shelstad
patent: 3789766 (1974-02-01), Hurwitz

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