Rail wheel grippers

Details Rail wheel grippers Rail wheel grippers

1976-01-07

1977-06-21

Blix, Trygve M.

Brakes

Vehicle

Railway

B61K 708

Patent

active

040305740

ABSTRACT:
A rail wheel gripper for holding or retarding a rail vehicle has opposed gripper mechanisms that engage a wheel between them. Each mechanism comprises a carrier arm for a gripper member and upper and lower pivot arms connected to the carrier arm controlling the path of movement of the gripper member. Each mechanism is so arranged, and a drive device co-operates with it, as to exhibit a mechanical advantage with increased gripping force when the opposed gripper members reach their operative positions, and a mechanical disadvantage with magnified displacement of the members when they are remote from their operative position.

REFERENCES:
patent: 1627137 (1927-05-01), Barr
patent: 2639786 (1953-05-01), Northrop et al.
patent: 2779441 (1957-01-01), Beltman et al.
patent: 3819017 (1974-06-01), Noble

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