Shock absorber for mooring cables

Details Shock absorber for mooring cables Shock absorber for mooring cables

1989-07-06

1990-11-06

Halvosa, George E. A.

Ships

Tension relievers

Cable

267 70, 267168, 267250, 267290, F16G 1103

Patent

active

049676814

ABSTRACT:
A shock absorber for use in connection with moored barge fleets, and capable of withstanding very large shock loads so that when positioned between a mooring cable and a stationary shore connection the shock absorber absorbs impact loads that are applied to the mooring cable by virtue of the flow of the current and the passage of other vessels. The shock absorber includes a cylindrical outer shell, the shell including end closure plates at each end. Extending between the end closure plates are six guide rods, each guide rod carrying four aligned groups of two concentric helical compression springs, the respective groups of springs being separated from axially adjacent groups of springs by respective alignment plates that are freely movable relative to the guide rods. A drawbar extends from the interior of the shell, and one end includes an end support plate that is secured to the drawbar and that is also slidably carried on the guide rods, the opposite end of the drawbar extending outwardly from one of the end closure plates and slidably received in a slot formed in the end closure plate. The drawbar terminates in a connection bore, and a connection tab also in the connection bore is provided on the outer face of the opposite end closure plate to permit the attachment to the shock absorber of portions of mooring cables.

REFERENCES:
patent: 172479 (1876-01-01), Peters
patent: 272874 (1883-02-01), Fuller
patent: 593788 (1897-11-01), Stone
patent: 608344 (1898-08-01), Nesmith
patent: 624327 (1899-05-01), Hammond
patent: 629290 (1899-07-01), Goodbaudy
patent: 2164709 (1939-07-01), Hall et al.
patent: 2663534 (1953-12-01), Hinckle

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