Device for connecting and disconnecting the swivel of an oscilla

Details Device for connecting and disconnecting the swivel of an oscilla Device for connecting and disconnecting the swivel of an oscilla

1982-06-22

1984-06-12

Taylor, Dennis L.

Hydraulic and earth engineering

Marine structure or fabrication thereof

With pivotal connection between work deck and base

52 40, 405195, E02B 1700

Patent

active

044538596

ABSTRACT:
The device comprises two concentric swivels, a first or mooring swivel being arranged on the outside of the second or bearing swivel, the second swivel being fixed to the end of a cartridge held in a movable manner in a tube forming a projection at the lower end of the shaft and an extension of an axial passage in the shaft. The cartridge is formed by a cage fitted with openings in which keys are housed. A ring is lowered between the keys and immobilizes them against the wall of the tube which forms an extension of the axial passage in the shaft. The method consists of lowering or raising the cartridge carrying the bearing swivel by means of a set of rods.

REFERENCES:
patent: 3332484 (1967-07-01), Watkins
patent: 3522709 (1970-08-01), Vilain
patent: 3766582 (1973-10-01), Lloyd et al.
patent: 4137722 (1979-02-01), Mossiossian et al.

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