Shock absorbing and retracting system for pipe laying vessel

Details Shock absorbing and retracting system for pipe laying vessel Shock absorbing and retracting system for pipe laying vessel

1975-01-31

1976-11-16

Gilliam, Paul R.

Implements or apparatus for applying pushing or pulling force

Device or member for contacting and guiding moving cable

Including rotatable, cable contacting, pulley wheel element

254172, F16L 100, B63B 3504

Patent

active

039915840

ABSTRACT:
A pipe laying vessel having pipe tensioners on deck for paying out and pulling pipe and a constant tension winch below deck for abandoning or recovering pipe is provided with a shock-absorbing sheave assembly to adjust the tension in the cable between the pipe and the winch during instantaneous load changes. The sheave assembly is also retractable below the deck for pipe handling operations on the deck immediately above the lowered sheave assembly.

REFERENCES:
patent: 3311351 (1967-03-01), Blakely
patent: 3512281 (1970-05-01), Hadjidakis
patent: 3728865 (1973-04-01), Lochridge
patent: 3762358 (1973-10-01), Hinkle
patent: 3851492 (1974-12-01), Cannon et al.
patent: 3866555 (1975-02-01), Korkut

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