초록 ▼

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 the

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.

대표청구항 ▼

In a self-tailing channel of a manually powered winch including a pair of annular jaws defining side walls of the channel for the reception of a line to be tailed, there being line-engaging teeth in each said jaw, and means for rotating said jaws about an axis of rotation, the improvement comprising

In a self-tailing channel of a manually powered winch including a pair of annular jaws defining side walls of the channel for the reception of a line to be tailed, there being line-engaging teeth in each said jaw, and means for rotating said jaws about an axis of rotation, the improvement comprising the teeth on one of said jaws being offset from and staggered relative to the teeth on the other of said jaws, and extending in an annular endless array about said axis of rotation for imposing upon line between them a wave-form deriving from alternating contact with the teeth of the jaws, respectively, whereby the wave-form is a function of the line size and tension experienced by the line and the line may be reAdily stripped from the channel.