Transfer bridge

Details Transfer bridge Transfer bridge

1981-03-16

1983-05-10

Byers, Jr., Nile C.

Bridges

Gangway, ramp, or dock leveler

Attached

14 711, E01D 100

Patent

active

043823076

ABSTRACT:
A transfer bridge for ramps. The bridge includes a bridge plate, the rear end of which is pivotable about a horizontal axis. The bridge plate is provided with a retractable and extendable extension which in turn is provided with tongues capable of being push-in. The extension is for placement upon the platform to be loaded or unloaded, and the tongues are automatically secured or arrested in the pushed-in condition. A drive, such as a piston, is associated with the tongues, or with the extension carrying the tongues, for retracting the tongues or the extension, subsequent to a pushing-in of the tongues, to form a gap between the tongues on the one hand and the platform (walls) on the other hand.

REFERENCES:
patent: 1518788 (1924-12-01), Hanna
patent: 2478790 (1949-08-01), Stephens
patent: 2881458 (1959-04-01), Rodgers
patent: 3175238 (1965-03-01), Pennington
patent: 3290709 (1966-12-01), Whitenack
patent: 3388413 (1968-06-01), Clarke
patent: 4110860 (1978-09-01), Neff
patent: 4224709 (1980-09-01), Alten

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