Floating lash barge lifting device

Details Floating lash barge lifting device Floating lash barge lifting device

1977-11-23

1980-10-07

Blix, Trygve M.

Ships

Vessel raising and docking

Floating dry docks

405 4, 114263, B63C 102

Patent

active

042262020

ABSTRACT:
The hull has a pair of laterally spaced pontoons which are rigidly interconnected by beams which extend between them at a level low enough that a barge will float over them. An elevator with a lifting and lowering mechanism is mounted on the hull with sling or cradle-like lifting bars. The lifting bars have upstanding posts which are shaped, sized and spaced to fit in the stacking post sockets conventionally provided in the hull bottoms of LASH barges. In a lower condition of the elevator, a barge will float over the bars. In a raised condition of the elevator, workers may stand on the hull pontoon decks and work on the sides of the barge and work on the bottom of the barge from scaffolding hanging under the lifting bars. For working on conventional river barges (which are longer than LASH barges) the lifting devices may be used in pairs.

REFERENCES:
patent: 1264257 (1918-04-01), Beckwith
patent: 1571178 (1926-02-01), Donovan
patent: 2932271 (1960-04-01), Crandall
patent: 3007316 (1961-11-01), Higgins
patent: 3065721 (1962-11-01), Roudabush
patent: 3265024 (1966-09-01), Kramlich
patent: 3276211 (1966-10-01), Drake

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