Ships – Watercraft with means used in providing sailpower – Having specifically defined hull shape
Patent
1977-04-22
1979-02-13
Blix, Trygve M.
Ships
Watercraft with means used in providing sailpower
Having specifically defined hull shape
9 6R, B63B 3500
Patent
active
041389603
ABSTRACT:
A sailboat of the positive displacement type having a novel construction including transverse and longitudinal interior tubular structural frames for absorbing the loads from the mast including the rigging system and the fore and aft stays as well as the loads from the keel. The structural support frames may be prefabricated and are inserted in and attach to, a hull shell which because of the strength and load-absorbing capacity of the frames, may be made from a thin lightweight construction, for example, a balsa core sandwiched by Fiberglas skins. The hull shell is formed separately from the frames and its strength need only be sufficient for absorbing the forces of the sea since the stresses and strains from the aforementioned loads are absorbed substantially entirely by the internal support frames. The transverse support frame supports the mast with the shrouds being fastened through chain plates to opposite sides of this frame. In addition, the keel is fixed to the transverse frame. The fore and aft stays are fixed to the opposite ends of the longitudinal frame which resists bending about transverse axes. After the internal frames are inserted in and attached to the hull shell, the deck is installed and it may be supported by either the longitudinal frame or the hull shell but in either instance, no bulkheads are required.
REFERENCES:
patent: 224346 (1880-02-01), McDonald
patent: 3648310 (1972-03-01), Butler
Blix Trygve M.
Mouzavires William E.
Sotelo Jesus D.
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