Railcar moving vehicles

Details Railcar moving vehicles Railcar moving vehicles

1987-11-23

1989-07-04

Cherry, Johnny D.

Railway rolling stock

Locomotives

Trackman's-car type

105 722, 1052152, B61C 908, B61C 1100

Patent

active

048439738

ABSTRACT:
An improved railcar moving vehicle is capable of travel in a first rail travel mode on a railway track on rail wheels and in a second ground travel mode on ground wheels. When the rail wheels are driving the vehicle on the rails in the rail travel mode, further traction assist is achieved by lowering powered ones of the ground wheels so as to frictionally engage either the surface of the rail bed or the rails themselves with sufficient force to drivingly increase the traction of the vehicle in the rail travel mode. The powered ground wheels are preferably driven independently of each other and of the rail wheel sets in two of the preferred embodiments by independent hydrostatic motors. In the other preferred embodiment, the ground wheels are powered from the rail wheels.

REFERENCES:
patent: 1274102 (1918-07-01), Srakula
patent: 3019742 (1962-02-01), Kershaw
patent: 3134343 (1964-05-01), Matsumura
patent: 3338184 (1967-08-01), Fisher
patent: 4089384 (1978-05-01), Ehrenberg
patent: 4113114 (1978-09-01), Pounds
patent: 4167142 (1979-09-01), Ames
patent: 4355584 (1982-10-01), White, Jr.
patent: 4534297 (1985-08-01), Johnson, Sr.
patent: 4537137 (1985-08-01), White, Jr.

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