Runaway halyard stop

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

Patent

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Details

114199, B63B 2108

Patent

active

054798701

ABSTRACT:
This runaway halyard preventer has a relatively small, elongated stop body that has one of its ends pivotally attached to the mast below the halyard pulley, while its other end is cantilevered. The stop body includes a walled passageway, located near the pivoted end, through which the halyard is passed. Whenever the halyard is under tension, the force it exerts on the stop body readily moves the stop body to a first position in which the halyard is able to run freely through the stop body in either direction. However, whenever the halyard is not under tension, a slight biasing force moves the pivoted stop body to a second position in which its passageway walls create sufficient frictional resistance to prevent movement of the halyard in either direction. Preferably, the weight of the cantilever end provides appropriate force for biasing the pivoted stop body toward its second position.

REFERENCES:
patent: D257323 (1980-10-01), Merry
patent: 466736 (1892-01-01), Dean
patent: 858018 (1907-06-01), Petersen
patent: 1650281 (1927-11-01), Knudson
patent: 1710697 (1929-04-01), Gilbert
patent: 3186372 (1965-06-01), Cleveland
patent: 3343514 (1967-09-01), Brettt
patent: 3843999 (1974-10-01), Kramoski
patent: 4051798 (1977-10-01), Wade et al.
patent: 4147121 (1979-04-01), Fogh et al.
patent: 4166427 (1979-09-01), Bullard
patent: 4465011 (1984-08-01), Merry
patent: 5113776 (1992-05-01), Knecht
patent: 5152241 (1992-10-01), Brown et al.

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