Leg and guide construction for use in jackup barges

Details Leg and guide construction for use in jackup barges Leg and guide construction for use in jackup barges

1975-10-22

1977-04-05

Blix, Trygve M.

Ships

Building

Canal and ferry boats

114265, 254 95, E02B 1702

Patent

active

040154343

ABSTRACT:
An improved leg construction is disclosed for jackup barges. The barge leg is typically of triangular construction. The members of a leg including the three verticals extending along the leg are preferably constructed of tubular members. The vertical tubular members include on the inside a rack formed of teeth to engage an elevating gear drive unit. Adjacent to the teeth, an undercut on both sides of the slot in the exterior of the tubular member is formed, locking the guide mechanism to the tubular member. This construction measurably improves the profile of the jackup leg to impinging wave action from any direction, thereby reducing the resistance of the leg to water and permitting a reduction in the leg weight and hull size.

REFERENCES:
patent: 2576928 (1951-12-01), Engstrand
patent: 3398541 (1968-08-01), Thomas
patent: 3412981 (1968-11-01), Richardson
patent: 3921958 (1975-11-01), Brockelsby

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