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Knot Tying
A knot is an intentional complication in cordage which may be practical or decorative, or both. Practical knots are classified by function, including hitches, bends, loop knots, and splices: a ''hitch'' fastens a rope to another object; a ''bend'' fastens two ends of a rope to each another; a ''loop knot'' is any knot creating a loop; and ''splice'' denotes any multi-strand knot, including bends and loops. A knot may also refer, in the strictest sense, to a stopper or knob at the end of a rope to keep that end from slipping through a grommet or eye. Knots have excited interest since ancient times for their practical uses, as well as their topological intricacy, studied in the area of mathematics known as knot theory. History Knots and knotting have been used and studied throughout history. For example, Chinese knotting is a decorative handicraft art that began as a form of Chinese folk art in the Tang and Song Dynasty (960–1279 AD) in China, later popularized in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Knot Theory
In topology, knot theory is the study of knot (mathematics), mathematical knots. While inspired by knots which appear in daily life, such as those in shoelaces and rope, a mathematical knot differs in that the ends are joined so it cannot be undone, the simplest knot being a ring (or "unknot"). In mathematical language, a knot is an embedding of a circle in 3-dimensional Euclidean space, \mathbb^3. Two mathematical knots are equivalent if one can be transformed into the other via a deformation of \mathbb^3 upon itself (known as an ambient isotopy); these transformations correspond to manipulations of a knotted string that do not involve cutting it or passing it through itself. Knots can be described in various ways. Using different description methods, there may be more than one description of the same knot. For example, a common method of describing a knot is a planar diagram called a knot diagram, in which any knot can be drawn in many different ways. Therefore, a fundamental p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overhand Knot
The overhand knot is one of the most fundamental knots, and it forms the basis of many others, including the simple noose, overhand loop, angler's loop, reef knot, fisherman's knot, half hitch, and water knot. The overhand knot is a stopper, especially when used alone, and hence it is very secure, to the point of jamming badly. It should be used if the knot is intended to be permanent. It is often used to prevent the end of a rope from unraveling. An overhand knot becomes a trefoil knot, a true knot in the mathematical sense, by joining the ends. It can also be adjusted, faired, or mis-tied as a half hitch. Tying There are a number of ways to tie the Overhand knot. * Thumb method – create a loop and push the working end through the loop with your thumb. * Overhand method – create a bight, by twisting the hand over at the wrist and sticking your hand in the hole, pinch the working end with your fingers and pull through the loop. Heraldry In heraldry, the overhan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
One-sided Overhand Bend
The offset overhand bend (OOB, The Ashley Book of Knots, ABoK No. 1410) is a knot used to List of bend knots, join two ropes together end-to-end. It is formed by holding two rope ends next to each other and tying an overhand knot in them as if they were a single line. Due to its common use in several fields, this List of bend knots, bend has become known by many names, such as thumb knot, openhand knot, one-sided overhand knot or flat overhand bend (FOB), though the terms "one-sided" and "flat" are considered incorrect. Geometry The term 'offset' refers to the knot core being displaced from the axis of tension. This geometry allows the knot to more easily translate around an edge - particularly a 90 degree edge. Uses Long used by Weaving, weavers to join the ends of yarn, the offset water knot is very old. It was one of the knots likely identified among the possessions of Ötzi the Iceman, who dates from 3300 BC. The knot is also tied in a slipped form by mechanical balers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kalmyk Loop
The Kalmyk Loop () is a fixed loop still largely unused in the West, but common in Russia and often used instead of the bowline. The knot is named after the Kalmyks, a nomad ethnicity in Russia. It is very quick to tie, it is secure, and it undoes quickly when pulling the free end. The knot is not mentioned in ''The Ashley Book of Knots'' but is found in its Russian equivalent, the book "Морские узлы" by Lev Skryagin. Without the slip, the knot is known as the Cossack knot or Eskimo bowline The Eskimo bowline, Cossack knot (), reverse bowline, or 'anti- bowline' is in a class of knots known as 'eye knots' or ' loop knots'. The eye is formed in the end of the rope to permit attachments/connections. It is quite common in Russia and .... Sources *Скрягин Л. Н. Морские узлы — Москва, Транспорт, 1982 External links russian article with picturesKalmyk Loop (калмыцкий узел)Can the Kalmyk Unseat the Bowline as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Half Hitch
The half hitch is a simple List of hitch knots, hitch knot, where the Knot#Working end, working end of a line is brought over and under the Knot#Standing part, standing part. Insecure on its own, it is a valuable component of a wide variety of useful and reliable List of hitch knots, hitches, Bend knot, bends, and knots. Securing an additional single hitch to the rope's standing part produces the related knot two half-hitches.Alternatively, a half hitch may be made secure on its own by placing the final crossing opposite to the turn around the working end. This locks the end in place, and holds fast as long as the hitch is loaded by a steady pull. A half hitch in this configuration is sometimes used to tie strings to the bridge of a classical guitar. Another instance where a half hitch stands on its own without additional embellishment is when added to a timber hitch to help stabilize a load in the direction of pull. A timber hitch is tied on the far end of the load to bind ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fisherman's Knot
The fisherman's knot is a bend (a knot for joining two lines) with a symmetrical structure. The fisherman's knot is also known as: angler's knot, English knot, halibut knot, waterman's knot, and true lover's knot. Properties The bend consists of two overhand knots, each tied around the standing part of the other. It is compact, jams when tightened, and the working ends can be cropped very close to the knot. It can easily be tied with cold, wet hands. Image:Spierenstich-1.jpg, 1. First overhand Image:Spierenstich-2.jpg, 2. Second overhand Image:Spierenstich-3.jpg, 3. Tighten Uses These properties are well suited to fishing, so the fisherman's knot is often used with fishing line. However it can slip when using modern nylon monofilament line, which is more slippery than historic fishing materials. If more holding strength is required, the overhand knots can be made with more turns, as in the double fisherman's knot, and triple fisherman's knot. Other knots sometimes p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Figure-eight Knot
The figure-eight knot or figure-of-eight knot is a type of stopper knot. It is very important in sailing, rock climbing and caving as a method of stopping ropes from running out of retaining devices. Like the overhand knot, which will jam under strain, often requiring the rope to be cut, the figure-eight will also jam, but is usually more easily undone than the overhand knot. The stevedore knot is an extension of simple figure-eight knot with an additional turn before the end is finally tightened. Different types Figure-eight loop The figure-eight loop is used like an overhand loop knot. This type of knot can be used in prusik climbing when used in conjunction with a climbing harness, a climbing rope, and locking carabiner designed for climbing, to ascend or descend with minimal equipment and effort. Figure-eight bend The figure-eight bend knot is used to "Rope splicing, splice" together two ropes, not necessarily of equal diameter. This knot is tied starting with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eskimo Bowline
The Eskimo bowline, Cossack knot (), reverse bowline, or 'anti- bowline' is in a class of knots known as 'eye knots' or ' loop knots'. The eye is formed in the end of the rope to permit attachments/connections. It is quite common in Russia and is often used instead of the bowline (ABoK #1010). In the simple bowline, the collar component forms around the 'standing part'. In contrast, the collar component of an Eskimo bowline forms around the outgoing eye-leg. On the first of arctic explorer John Ross' expeditions (1818) the Inuit (Eskimos) presented him a sled that contained several of these knots, showing that it is a genuine Inuit knot. The knot is not mentioned in ''The Ashley Book of Knots ''The Ashley Book of Knots'' is an encyclopedia of knots written and illustrated by the American sailor and artist Clifford W. Ashley. First published in 1944, it was the culmination of over 11 years of work. The book contains 3,857 numbered ent ...'' but in its Russian equivalent, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Double Fisherman's Knot
The double fisherman's knot or grapevine knot is a bend. This knot and the triple fisherman's knot are the variations used most often in climbing, arboriculture, and search and rescue. The knot is formed by tying a double overhand knot, in its strangle knot form, with each end around the opposite line's standing part. Usage A primary use of this knot is to form high strength (round) slings of cord for connecting pieces of a climber's protection system. Other uses This knot, along with the basic fisherman's knot can be used to join the ends of a necklace cord. The two strangle knots are left separated, and in this way the length of the necklace can be adjusted without breaking or untying the strand. Tying Line form File:Doppelter Spierenstich-1.jpg, File:Doppelter Spierenstich-2.jpg, File:Doppelter Spierenstich-3.jpg, File:Doppelter Spierenstich-4.jpg, Drop form File:Doppelter Spierenstich Tropfen-1.jpg, File:Doppelter Spierenstich Tropfen-2.jpg, File:Doppelter Spi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cow Hitch
The cow hitch, also called the lark's head, is a hitch knot used to attach a rope to an object. The cow hitch comprises a pair of single hitches tied in opposing directions, as compared to the clove hitch in which the single hitches are tied in the same direction. It has several variations and is known under a variety of names. It can be tied either with the end of the rope or with a bight. History A simple and useful knotted structure, the cow hitch has been known since at least the first century when described by Greek physician Heraklas in a monograph on surgical knots and slings. Known under a variety of names, this knot has been used both on land and at sea. The common alternate name "lark's head" is attributed to Tom Bowling (pseudonym) in the 1866 work ''The Book of Knots'' which is presumed to have been adapted from a French manuscript; lark's head is a literal translation of the French name for the knot, ''tête d'alouette''.Ashley, p. 11. Variations The underl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clove Hitch
The clove hitch is an ancient type of knot, made of two successive single hitches tied around an object. It is most effectively used to secure a middle section of rope to an object it crosses over, such as a line on a fencepost. It can also be used as an ordinary hitch, or as a binding knot, but it is not particularly secure in either application. It is considered one of the most important knots, alongside the bowline and the sheet bend. Usage This knot is particularly useful where the length of the running end needs to be adjustable, since feeding in rope from either direction will loosen the knot to be tightened at a new position. With certain types of cord, the clove hitch can slip when loaded. In modern climbing rope, the clove hitch will slip to a point, and then stop slipping. When tied around a carabiner, the load should pull on the end closest to its spine. With smaller diameter cords, after being heavily weighted it may become difficult to untie. It is also unre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
