System for trimming the mast of a sailing yacht

Details System for trimming the mast of a sailing yacht System for trimming the mast of a sailing yacht

1976-08-30

1977-11-01

Blix, Trygve M.

Ships

Sail or control means therefor

Rigging screws and stretchers

114 91, B63B 1502

Patent

active

040560724

ABSTRACT:
A system for trimming the mast of a sailing yacht wherein the fore and aft stays of the mast are fixed to the top of the mast and extend downwardly to the hull to which they are connected by means of hydraulic cylinders, including pistons respectively connected to the stays. Trimming of the mast is achieved by simultaneously moving the stays to adjust or trim the position of the top of the mast through means of a control cylinder having a control piston which, when moved, admits hydraulic fluid into one of the stay cylinders to in effect shorten the associated stay while, at the same time, removing hydraulic fluid from the other stay cylinder to in effect lengthen the associated stay. Once the desired trim is achieved, the control piston is locked in the adjusted position. A pump and an associated hydraulic fluid supply is provided for the system together with a selector valve for connecting the fluid supply to either end of the control cylinder.

REFERENCES:
patent: 2261444 (1941-11-01), Neubert, Jr.
patent: 3099976 (1963-08-01), Schwaneke et al.
patent: 3620182 (1971-11-01), Russell
patent: 3658297 (1972-04-01), Banks, Jr.
patent: 3903827 (1975-09-01), Marcil

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