Roller furling structure

Details Roller furling structure Roller furling structure

1978-02-21

1981-02-17

Frankfort, Charles E.

Ships

Sail or control means therefor

Reefing and furling

B63H 910

Patent

active

042508266

ABSTRACT:
An improvement upon U.S. Pat. Nos. 3,789,790; 3,749,043; and 3,980,036 employs a winch mounted on the furling drum to tighten each halyard. The winch has teeth resembling pinion gear teeth which engage the openings in a stainless steel roller chain, the upper end of which is attached to the ear of a traveler swedged to the lower end of the halyard. A latch on the winch locks the chain in position after it has been tightened and further functions to assist in inserting the end of the chain into the winch. The furling structure may be installed on a stay (as for a jib) or a special stay may be installed on a mast or spar; with the special stay supported by top and bottom brackets attached to the mast and spacing the stay away from the mast. The sail has a luff formed by the use of hard braided luff line enclosed in Teflon-coated tape which is sewn to the sail. The luff line is inserted in slots in the roller spool sections. At the tack and head webbing is sewn to the sail, projecting beyond the ends thereof and carrying rings. The head ring is attached by a shackle to the end of the halyard. The tack ring is attached by a pin to ears on the upper surface of the furling drum.

REFERENCES:
patent: 1003333 (1911-10-01), Campbell
patent: 2691814 (1954-10-01), Tait
patent: 2796038 (1957-06-01), Pegel
patent: 2858789 (1959-11-01), Stearns
patent: 3980036 (1976-10-01), Crall

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