Car shifting apparatus

Details Car shifting apparatus Car shifting apparatus

1979-08-06

1981-02-24

Bertsch, Richard A.

Railways

Traction

Pusher

B60J 308

Patent

active

042520649

ABSTRACT:
Resiliently biased dogs of a car shifting apparatus are automatically moved by double acting hydraulic cylinders to positions in which the dogs cannot engage any car moving along a predetermined path. When this occurs, movement of the dogs from these non-obstructing positions and movement of barneys, which have the dogs pivotally mounted thereon, along the predetermined path are prevented.

REFERENCES:
patent: 2572687 (1951-10-01), Anderson et al.
patent: 3377961 (1968-04-01), Hunt
patent: 3696754 (1972-10-01), Anderson et al.
patent: 4038927 (1977-08-01), Evans

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