Adjustable Grip Hitch
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The adjustable grip hitch is a simple and useful
friction hitch Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. Types of friction include dry, fluid, lubricated, skin, and internal -- an incomplete list. The study of t ...
which may easily be shifted up and down the rope while slack. It will hold fast when loaded, but slip when shock loaded until tension is relieved enough for it to again hold fast. It serves the same purpose as the
taut-line hitch The taut-line hitch is an adjustable loop knot for use on lines under tension. It is useful when the length of a line will need to be periodically adjusted in order to maintain tension. It is made by tying a rolling hitch around the standing p ...
, e.g. tensioning a tent's guy line. This knot is also called the adjustable loop and Cawley adjustable hitch. It was conceived 1982 by Canadian climber Robert Chisnall.


Tying

The working end is wrapped inwards around the standing part (A-B) twice (1). Then another turn is made around both parts and a bight is pulled through the last wrap (2, 3) for the slipped version (left image), or just the end for the non-slipped version (right image). The knot needs to be pulled tight to actually grip (the slack is pulled out of the windings and the knot pulled tight at C and D). By pushing the knot along the standing part in direction of A, the line can be tightened. The grip can be improved by adding a third turn around the standing part. The slipped adjustable grip hitch can be easily untied by pulling the end E, even under quite heavy load.


Adjustable Bend

Using the same knot core an adjustable bend can be made to join two lines. For that the knot is tied in both working ends, each around the other line's standing part. The length of the line can be then adjusted by pushing the knots together or apart.


Alternatives

* The
taut-line hitch The taut-line hitch is an adjustable loop knot for use on lines under tension. It is useful when the length of a line will need to be periodically adjusted in order to maintain tension. It is made by tying a rolling hitch around the standing p ...
and midshipman's hitch are more common for the same purpose. They are made of a
rolling hitch The rolling hitch is a knot (see also Magnus hitch) used to attach a rope to a rod, pole, or another rope. A simple friction hitch, it is used for lengthwise pull along an object rather than at right angles. The rolling hitch is designed to re ...
around the standing part. * An adjustable bend can also be made with rolling hitches around the other line. * The
Farrimond friction hitch The Farrimond friction hitch is a quick release adjustable friction hitch for use on lines under tension. It is useful when the length of a line will need to be periodically adjusted in order to maintain or adjust tension whilst remaining quick ...
can be tied in the bight.


External links


Adjustable grip hitch
at Animated Knots


See also

*
List of knots This list of knots includes many alternative names for common knots and lashings. Knot names have evolved over time, and there are many conflicting or confusing naming issues. The overhand knot, for example, is also known as the thumb knot. The ...
*
List of friction hitch knots A list is a Set (mathematics), set of discrete items of information collected and set forth in some format for utility, entertainment, or other purposes. A list may be memorialized in any number of ways, including existing only in the mind of t ...


References

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