Apparatus for correcting skew of a traveling crane

Details Apparatus for correcting skew of a traveling crane Apparatus for correcting skew of a traveling crane

1994-11-21

1996-04-16

Le, Mark T.

Railway rolling stock

Trucks

Overhead crane

212275, B66C 900

Patent

active

055072348

ABSTRACT:
An overhead traveling crane adapted to be supported on a pair of spaced apart, generally parallel first and second rails, the crane comprising a frame having opposite first and second ends, a first drive wheel which is rotatably mounted on the first end of the frame and which is adapted to roll along the first rail, a first idler wheel which is rotatably mounted on the first end of the frame and which is adapted to roll along the first rail, a second drive wheel which is rotatably mounted on the second end of the frame and which is adapted to roll along the second rail, a second idler wheel which is rotatably mounted on the second end of the frame and which is adapted to roll along the second rail, a first motor mounted on the frame and drivingly connected to the first drive wheel, a second motor mounted on the frame and drivingly connected to the second drive wheel, an idler shaft connecting the idler wheels such that the idler wheels rotate at the same speed, a hoist moveable along the frame in a direction generally perpendicular to the rails, and a load engaging mechanism which is raised and lowered by the hoist.

REFERENCES:
patent: 2935032 (1960-05-01), Tingskog
patent: 3095829 (1963-07-01), Dehn
patent: 3543690 (1970-12-01), Lee
patent: 5080021 (1992-01-01), Thorsen
patent: 5119737 (1992-06-01), Thorsen
patent: 5156282 (1992-10-01), Thorsen

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