Hydraulic loading and unloading dock

Bridges – Gangway – ramp – or dock leveler – Attached

Patent

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Details

E01D 100

Patent

active

040043118

ABSTRACT:
A platform supported upon underground hydraulic cylinders, the platform being exchangeable with a second platform having tracks for railroad car wheels riding thereupon, the platforms thus being able to be moved vertically so that the floor of a truck trailer or a railroad car are thus brought level with the ground surface in order that a fork lift vehicle can easily travel from the ground surface into the railroad car or truck trailer.

REFERENCES:
patent: 2489869 (1949-11-01), Dunn
patent: 2560064 (1951-07-01), Astry
patent: 2643010 (1953-06-01), Hott
patent: 2644971 (1953-07-01), Rowe
patent: 2767661 (1956-10-01), Tennant
patent: 2774492 (1956-12-01), Harrison
patent: 2798620 (1957-07-01), Allan
patent: 3004272 (1961-10-01), Clarke
patent: 3215090 (1965-11-01), Gibbs
patent: 3409923 (1968-11-01), Walker

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