Sail and method of construction

Ships – Sail or control means therefor – Specific sail structure or arrangement

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B63H 904

Patent

active

044650108

ABSTRACT:
A sail having a built-in-pocket and its method of construction is disclosed. A sail having foot and luff measurements and a desired angle at the finally formed tack is formed from sail material and has a built-in-pocket at a desired location. In forming the sail, the luff is pivoted forwardly on sail material about its upper edge to a sail forming position and the foot is pivoted downwardly on sail material about its rearward edge to a sail forming position; the amount that the bottom edge of the luff is moved forwardly determines the depth of the pocket; a first edge is formed between the moved end of the luff and a desired point providing the location of the center of the pocket; a second edge, equal to the first edge, is formed between the moved end of the foot and the desired point, the mating edges are fixed together, such as by sewing.

REFERENCES:
patent: 1792106 (1931-02-01), Luders
patent: 2159923 (1939-05-01), Willard
patent: 2499598 (1950-03-01), Maurer et al.
patent: 2544770 (1951-03-01), Willis
patent: 2565219 (1951-08-01), Gardiner et al.
patent: 3487800 (1970-01-01), Schweitzer et al.
patent: 3680519 (1972-08-01), Jalbert
patent: 3974791 (1976-08-01), Haarstick et al.

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