![]() ![]() ![]() ![]() Finnish scout leader Martta Ropponen presented the knot in her 1931 scouting handbook Solmukirja ("Knot Book"), one of the first published works known to contain an illustration of the constrictor knot. The constrictor knot was clearly described but not pictured as the " timmerknut" ("timber knot") in the 1916 (2nd) edition of the Swedish book Om Knutar ("On Knots") by Hjalmar Öhrvall. Hyatt Verrill illustrated Burgess's clove hitch variation in Knots, Splices and Rope Work. Burgess copied from Bowling, he changed this text to merely state "when the ends are knotted, the builder's knot becomes the gunner's Knot." Although a clove hitch with knotted ends is a workable binding knot, Burgess was not actually describing the constrictor knot. He wrote, "The Gunner's knot (of which we do not give a diagram) only differs from the builder's knot, by the ends of the cords being simply knotted before being brought from under the loop which crosses them." But Bowling is simply an extraction and translation of the knotting work contained in the huge French Traite de L'Art de la Charpenterie, first published in 1841, which says " Le nœud de bombardier, que nous n'avons point figuré, ne differe du nœud d'artificier qu'en ce que les bouts du cordage sont croisés en nœud simple, avant de sortir de dessous la ganse qui les croise, fig.46." When J. The knot is described in relation to the clove hitch, which he illustrated and called the "builder's knot". Īlthough the description is not entirely without ambiguity, the constrictor knot is thought to have appeared under the name "gunner's knot" in the 1866 work The Book of Knots, written under the pseudonym Tom Bowling. Although Ashley seemed to imply that he had invented the constrictor knot over 25 years before publishing The Ashley Book of Knots, research indicates that he was not its only originator, but his Book of Knots does seem to be the source of subsequent knowledge and awareness of the knot. The double constrictor knot is an even more robust variation that features two riding turns.įirst called "constrictor knot" in Clifford Ashley's 1944 work The Ashley Book of Knots, this knot likely dates back much further. It is made similarly to a clove hitch but with one end passed under the other, forming an overhand knot under a riding turn. Simple and secure, it is a harsh knot that can be difficult or impossible to untie once tightened. The constrictor knot is one of the most effective binding knots. The Constrictor Knot is normally tied in twine or other small diameter line.Clove hitch, transom knot, strangle knot, miller's knot, boa knot, cross constrictor knot Rope Size: The pictures here show the rope tied in large diameter rope. When this is necessary, the binding strand should be cut over the other constrictor strands, using them to protect your rope. Release: The Constrictor Knot can be very hard to undo – cutting the knot can be the only option. ![]() However, when the twine or rope has to be first passed around an object, then the Threading the End Method has to be used.ĭisadvantages: The Constrictor Knot fails when tied against a flat surface – it requires a curved surface for the binding turn to grip the Half Hitch. Using the Twisting Method: The Twisting Method is quick and convenient and can be used even for short lengths, e.g., when using a piece of twine to secure a fraying rope’s end. It securely ties the neck of a sack or bag it has been used as a temporary hose clamp and it can be used to hold items together for gluing.Īlternatives: In addition to the Twisting Method shown here, the Constrictor Knot can be tied by the Folding Method, and by Threading the End when tying this knot round a rail or bar. It is an excellent quick temporary whipping for a fraying rope’s end and can be used to keep a rope’s end together while it is being whipped. Uses: The Constrictor Knot ( ABOK # 1188, p 216.) deserves to be much more widely known and used. ![]()
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