Assembly positioning a crane on a platform installed in the sea

Details Assembly positioning a crane on a platform installed in the sea Assembly positioning a crane on a platform installed in the sea

1977-10-12

1980-03-11

Leppink, James A.

Static structures (e.g., buildings)

Mechanism operated relatively movable shaft assembly

52123, E04H 1234

Patent

active

041921100

ABSTRACT:
An assembly for positioning a crane mounted on a support and intended to overhang the platform of a platform structure having a base which rests on the bed of a body of water. The crane is located on the vertical axis of a column offset with respect to a central shaft which carries the platform. The assembly comprises a mobile shaft element contained in the upper part of the offset column and having a base with jacks or a block and tackle permitting its emergence as far as the upper level of the offset column. The lower face of the crane support carries a downwardly extending shaft element which has the same diameter as the mobile shaft element. The two shaft elements are substantially coaxial when the platform is carried on the central shaft so that they may be joined together and raised as a unit.

REFERENCES:
patent: 3106299 (1963-10-01), Pingan
patent: 3185265 (1965-05-01), White
patent: 3397545 (1968-08-01), Leavitt
patent: 3477235 (1969-11-01), Branham
patent: 3495370 (1970-02-01), Habro
patent: 3945212 (1976-03-01), Mo
patent: 4015686 (1977-04-01), Bushnell

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