Winch

Details Winch Winch

1977-10-20

1979-05-01

Blix, Trygve M.

Implements or apparatus for applying pushing or pulling force

Step-by-step traveling bar

Pawl actuated

2541757, 24132R, B66D 130

Patent

active

041519809

ABSTRACT:
The jaws of a self-tailing channel of a winch are each provided with teeth in the form of ribs or ridges, the teeth being on a skew and being staggered so that a tooth on one of the jaws is not opposite to a tooth on the other of the jaws. In the embodiments shown the teeth are staggered by half their pitch; in one embodiment the teeth are straight and skewed and in another are arcs on a center of curvature spaced from the central axis of the jaw. This disposition of teeth enables the jaw to accommodate to a variety of widths of rope and also provides very positive gripping of that rope without however resistance to it being stripped when desired.
The disclosure also includes a novel arrangement of stripper tongue and line guide in which the stripper tongue is provided on a stationary slip ring which forms the base of the tailing channel and where the line guide entraps an end portion of the tongue and may be radially supported by it. An embodiment is also disclosed in which a radially outermost part of the self-tailing jaws are formed for the reception of chain links in the channel, the inner part remaining available for the tailing of line.

REFERENCES:
patent: 3343809 (1967-09-01), Newell
patent: 3448962 (1969-06-01), Miller
patent: 3985340 (1976-10-01), Guangorence
patent: 4054265 (1977-10-01), Magg et al.

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