Sea crane tiedown

Details Sea crane tiedown Sea crane tiedown

1976-03-29

1977-03-15

Spar, Robert J.

Traversing hoists

Overhead

Cable

212 48, 212 70, B66C 2352

Patent

active

040119556

ABSTRACT:
A sea crane having a rotatable upper works mounted on a cylindrical pedestal with the upper works having a tiedown to the pedestal including an annular collar on the pedestal and a ring-like structure suspended from the upper works beneath the collar and mounted out of contact with both the collar and the pedestal. Tension links couple the bed of the upper works to the ring-like structure to prevent structural failure from bending the bed, or tilting and pulling the upper works either forward or backward from the pedestal.

REFERENCES:
patent: 1352575 (1920-09-01), Bingaman
patent: 2109304 (1938-02-01), Ormsby

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