Locking device for oil platforms

Details Locking device for oil platforms Locking device for oil platforms

1985-02-28

1986-12-09

Husar, Cornelius J.

Hydraulic and earth engineering

Marine structure or fabrication thereof

With work deck vertically adjustable relative to floor

405196, 254 95, 254105, E02B 1708, B66F 100

Patent

active

046277684

ABSTRACT:
The locking device for a self-raising oil platform comprising a shell (1) mounted to be movable along legs (2) by means of raising mechanisms comprising output gear pinions cooperative with racks (3) mounted on at least a part of the length of the legs (2), comprises a toothed member (6) forming a counter-rack (6a) mounted on the shell of the platform, means (7) for shifting the toothed member (6) transversely of the direction of the rack with which the device is associated for engaging the teeth of the toothed member in the teeth of the rack (3) or for disengaging them from the teeth of the rack, clamping plates (13) connected to the toothed member and clamping counter-plates (15) connected to the platform, and means (20) for clamping the plates and counter-plates together so as to lock the toothed member (6) in position in the rack.

REFERENCES:
patent: 3278158 (1966-10-01), Saldana
patent: 3343371 (1967-09-01), Heitkamp
patent: 3722863 (1973-03-01), Itoh et al.
patent: 4255069 (1981-03-01), Goldman et al.

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