Rig for sailboat
OwnerRobert Kunstadtinventor
Life of this patent
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Abstract
An improved rig is provided for sailing craft, in which two sails are provided in the general shape of tapered tubes encircling each of two adjacent masts arrayed in an A-frame configuration. In the course of a tack, the sails may be swung pendulum-like either towards or away from the bow (one in each direction). The two sails therefore effectively alternate between serving the role of a jib (with sail-area mainly forward of a mast), and the role of a mainsail (with sail-area mainly aft of a mast). The same set of sails on the same masts may also advantageously be deployed for use in high winds, running downwind, heaving-to, and running before a storm.
Claims6
An A-frame rig for a sailing craft comprising a first strut and a second strut, each of said struts being circular in cross-section;
- said first strut being provided with a first rotatable sleeve and said second strut being provided with a second rotatable sleeve;
- each of said rotatable sleeves being substantially elliptical in cross-section;
- a first receiving point for a first halyard and a second receiving point for a second halyard;
- said receiving point for said first halyard being upon said first sleeve and said second receiving point for said second halyard being upon said second sleeve;
- each of said struts being provided with a tubular sail controllably disposed both to swing and to rotate thereon.
An A-frame rig for a sailing craft comprising a first strut and a second strut;
- a first tubular sail for removably encircling said first strut;
- and a second tubular sail for removably encircling said second strut;
- each of said tubular sails being hoisted from its respective strut and being controllably disposed both to swing and to rotate thereon.
Dependencies are inferred from the claim text.