Bidirectionally operative tie exchanging apparatus

Details Bidirectionally operative tie exchanging apparatus Bidirectionally operative tie exchanging apparatus

1982-04-13

1983-12-06

Reeves, Robert B.

Railways

Track layers

Tie replacer

37104, B61D 1500, B01B 2906, B01B 2910

Patent

active

044186258

ABSTRACT:
A compact bidirectionally operative tie exchanging apparatus includes an extensible telescoping beam assembly carried in a support cradle mounted on the underside of a railway maintenance car. In a first embodiment, the beam assembly includes an inner and an outer beam telescopically received within one another with hydraulically actuated tie clamping arms mounted on the opposite, remote ends of the beams assembly. A push/pull hydraulic cylinder has its ram and its cylinder connected, respectively, to the inner and outer beams. Hydraulically actuated locking pins mounted on the support cradle are selectively actuatable to lock either the inner beam or the outer beam to its respective support cradle. When the inner beam is locked to its support cradle and the push/pull hydraulic cylinder actuated, the unlocked outer beam can be extended and retracted to remove and replace railway ties from one side of the rail bed and, when the outer beam is locked to its support cradle and the push/pull hydraulic cylinder actuated, the unlocked inner beam can be extended and retracted from the other side of the rail bed. In another embodiment, the tie exchanging apparatus is mounted on a turret to permit controlled rotation about the vertical axis. The rail tie exchanger is advantageously compact, simple to operate, and can be used with equal facility for removing rail ties from one side of a rail bed or the other.

REFERENCES:
patent: 1613037 (1927-01-01), Kniffen
patent: 3537400 (1970-11-01), Taylor
patent: 3780664 (1973-12-01), Holley et al.
patent: 3948185 (1976-04-01), Settle et al.
patent: 3964397 (1976-06-01), Dieringer et al.
patent: 4133266 (1979-01-01), Taylor
patent: 4348959 (1982-09-01), Bommart

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