Material or article handling – Wheeled – load-transporting type vehicles forming a train,...
Patent
1987-06-01
1989-05-16
Werner, Frank E.
Material or article handling
Wheeled, load-transporting type vehicles forming a train,...
414537, 414542, 4146955, 180906, 180 948, B65G 6702
Patent
active
048305626
ABSTRACT:
A method and apparatus for loading and unloading a railroad gondola car having spaced apart, parallel side walls with upper surfaces, the apparatus including a hydraulic excavator for excavating, loading, and unloading materials, the hydraulic excavator having a boom structure and a material engaging device rotatably mounted on two tracks for moving the hydraulic excavator from one location to another, each of the two track means having an inside set of rollers and an outside set of rollers for supporting the track over its entire width, adjusting structure for moving the tracks inwardly and outwardly to vary the distance between the tracks, and track support apparatus for supporting the track connected to the adjusting structure, a plurality of arms connected to the outside of each of the track support apparatus for preventing the hydraulic excavator from falling off of the gondola car when the two tracks are resting on the upper surfaces of the gondola car, the arms being adapted to extend downwardly adjacent to the upper surface of the parallel side walls of the railroad gondola car when the hydraulic excavator is located on top of the gondola car.
REFERENCES:
patent: 2812081 (1957-11-01), Schrader
patent: 3116844 (1964-01-01), Blunden
patent: 3820616 (1974-06-01), Juergens
patent: 3863988 (1975-02-01), Bartels
patent: 4099635 (1978-07-01), Leonard et al.
patent: 4190394 (1980-02-01), Herzog et al.
Ray David L.
Werner Frank E.
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