Sail furling and reefing apparatus

Details Sail furling and reefing apparatus Sail furling and reefing apparatus

1978-04-20

1981-05-19

Kazenske, Edward R.

Ships

Sail or control means therefor

Reefing and furling

114 90, B63H 910

Patent

active

042677904

ABSTRACT:
Apparatus for supporting and furling a sail wherein a hollow mast having a chamber therein is provided with a slot leading into the chamber and a rotatable inner mast in the chamber arranged to bear the weight of the sail in compression. Rotating the inner mast furls the sail. The inner mast is also relatively rigid against torsional bending, its diameter is relatively large. The width of the slot is also relatively large and contoured so that the sail slides freely through the slot even though wrinkled. As a result, the sail can employ adequate fullness, and risk of jamming while furling is minimized.

REFERENCES:
patent: 2107303 (1938-02-01), Ljungstrom
patent: 3285215 (1966-11-01), Potter
patent: 3835804 (1974-09-01), Jackson
patent: 4030439 (1977-06-01), Hood et al.
patent: 4061101 (1977-12-01), Cook
patent: 4090461 (1978-05-01), Rusich
patent: 4116152 (1978-09-01), Larsson
patent: 4130292 (1978-12-01), Lorenz
patent: 4149482 (1979-04-01), Hoyt

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