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First called "constrictor knot" in Clifford Ashley's 1944 work The Ashley Book of Knots, this knot likely dates back much further. [5] Although Ashley seemed to imply that he had invented the constrictor knot over 25 years before publishing The Ashley Book of Knots, [1] research indicates that he was not its only originator, but his Book of Knots does seem to be the source of subsequent ...
The cutting of the Gordian Knot is an Ancient Greek legend associated with Alexander the Great in Gordium in Phrygia, regarding a complex knot that tied an oxcart. Reputedly, whoever could untie it would be destined to rule all of Asia. In 333 BCE, Alexander was challenged to untie the knot.
To untie, loosen the collars that form around each Standing Part (SPart). Zeppelin bend forming a loop: the four stages of the method starting with a "clover leaf" or flattened overhand knot; Red line: ends of the overhand knot, Green line: ends of the underhand. Another method of remembering this knot is to visualize a "69".
Double constrictor knot – binding knot that can be difficult to untie once tightened; Double Englishman's knot (double fisherman's knot) – joins two lengths of rope; Double figure eight knot Double figure eight bend (Flemish bend) – joins two ropes of roughly similar size; Double figure-eight loop – forms two parallel loops
The reef knot can capsize if one of its standing ends is pulled.. A knot that has capsized or spilled has deformed into a different structure. Although capsizing is sometimes the result of incorrect tying or misuse, it can also be done purposefully in certain cases to strengthen the knot (see the carrick bend [4]) or to untie a seized knot which would otherwise be difficult to release (see ...
The boa knot is related to the strangle knot and the double constrictor knot. It combines both the structure and qualities of these other two knots. The boa knot can be very difficult to untie and is inappropriate when frequent or fast untying is needed. The knotted part needs to lie over a convex surface to hold.
When attempting to tie a reef knot (square knot), it is easy to produce a granny knot accidentally. This is dangerous because the granny knot can slip when heavily loaded. A tightened granny knot can also jam and is often more difficult to untie than the reef knot. It is better to tie a reef knot in nearly all circumstances.
The seizings preserve the initial shape of the knot. In the interest of making the carrick bend easier to untie, especially when tied in extremely large rope, the ends may be seized to prevent the knot from collapsing when load is applied. This practice also keeps the knot's profile flatter and can ease its passage over capstans or winches. [10]