Chain or wire stopper

Details Chain or wire stopper Chain or wire stopper

2005-10-14

2009-06-02

Avila, Stephen (Department: 3617)

Ships

Cable stoppers

C114S200000

Reexamination Certificate

active

07540254

ABSTRACT:
A stopper device (1) for chain (2) or wire, especially for locking in position an anchor chain, tow wire or mooring wire, wherein the stopper consists of a pair of plates (3, 4) which can be pivoted up from the deck of a ship to be vertically positioned in a locked position relative to the deck, so that the plates (3, 4) form an angle (α) relative to each other and with a gap (6) between an area of adjacent plate edges (3′; 4′) on the pair of plates, wherein the gap is configured to match the thickness (t) of a chain link or a wire, wherein the pivoting movement of each plate is provided with the aid of a jack (7) in cooperation with a link mechanism (8; 9), and wherein the link mechanism (8; 9) in one end position causes a locking of the plate (3; 4) in the vertical position. A first (10) of the links in the link mechanism has an abutment area (11) designed to cooperate with a controllable, reciprocating locking bolt (121) for locking the first link (10) and thus the link mechanism in said one end position.

REFERENCES:
patent: 3146754 (1964-09-01), Ohnsman
patent: 3289626 (1966-12-01), Petrie et al.
patent: 4093042 (1978-06-01), Pradon
patent: 4278041 (1981-07-01), Williams
patent: 4423697 (1984-01-01), Royset
patent: 4603649 (1986-08-01), Hystad
patent: 4862821 (1989-09-01), Ballantyne
patent: 32 39 056 (1984-04-01), None
patent: 195 03 382 (1995-08-01), None
patent: 2 147 261 (1985-05-01), None

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