Self-tacking swivel base

Details Self-tacking swivel base Self-tacking swivel base

2007-12-04

2007-12-04

Sotelo, Jesús D (Department: 3617)

Ships

Bitts, cleats, and pin rails

C254S415000

Reexamination Certificate

active

11494857

ABSTRACT:
An improved sailboat swivel base consisting of a rotating arm that supports both a guide pulley on one end and a rope securing cleat on the opposite end. The arm swivels about a center bearing, housed in a base which is fastened to a fixed structure such as the deck of a boat. A sail control rope, passing through the guide pulley and secured by the cleat, is tensioned by the force of the sail. The tension force of the line pulls the guide pulley end of the rotating arm toward the sail and sends the securing cleat away from the sail. This rotation aligns the cleat with the direction of pull for easy operation. When the sailboat changes tacks and the sails reverse position the rotating arm will follow the sail to the new side and self-tack the swivel base.

REFERENCES:
patent: 2343054 (1944-02-01), Gwinn, Jr. et al.
patent: 4160541 (1979-07-01), Harken et al.

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