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Span Loop
A span loop is a non-jamming loop that can be tied away from the ends of the rope. Information The span loop is known for being extremely easy to untie. The beginning of tying this knot begins with tying a Half Sheepshank, which is also known as a Bell Ringer's Knot. In order to tie this, the same one-handed twist method employed for tying a bowline can be used. One bight or loop will poke up through the half-hitch, and it will perfectly match the end of the rope that is also poking up through the signature half-hitch part of a bowline as it is done with the one hand twist method. The next thing to do is to push the bottom loop back up and through the top loop. File:Tying-span-loop-ABOK1049-1.jpg, half a sheepshank A shank is a type of knot that is used to shorten a rope or take up slack, such as the sheepshank. The sheepshank knot is not stable. It will fall apart under too much load or too little load. The knot has several features which allow a rope to b ... File:Tying-sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Butterfly Loop
The butterfly loop, also known as lineman's loop, butterfly knot, alpine butterfly knot, Swiss loop and lineman's rider, is a knot used to form a fixed loop in the middle of a rope. Tied in the bight, it can be made in a rope without access to either of the ends; this is a distinct advantage when working with long climbing ropes. The butterfly loop is an excellent mid-line rigging knot; it handles multi-directional loading well and has a symmetrical shape that makes it easy to inspect. In a climbing context it is also useful for traverse lines, some anchors, shortening rope slings, and for isolating damaged sections of rope. History The earliest known presentation of the knot was in A.A. Burger's 1914 work ''Rope and Its Uses'', included in an agricultural extension bulletin from what is now Iowa State University. Burger called the knot a lineman's rider stating it was often used by "linemen and especially telephone men". The knot's security and ability to withstand tensi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Farmer's Loop
The farmer's loop is a knot which forms a fixed loop. As a midline loop knot made with a bight, it is related to several other similar knots, including the alpine butterfly knot and artillery loop. If pulled with one hand holding one end, the other hand holding the start side of the loop that is the continuation of the same end, before tightening the knot of the loop, it may capsize to a slip knot with a complicated and heavy knot. It is tied on one hand to make a loop about twice the size of that hand (use fingers for a smaller one, thumb-hook-to-elbow for a large one), as follows:https://www.youtube.com/watch?v=POrsQr9UhCM Farmer's Loop/Wireman's Loop For Mechanical Advantage # start with the rope 3 times around the palm of one hand, let the ends hang down, # then pull the initial middle turn up from the top edge and place it over to the right (of the right loops top edge) # then pull the now new middle turn up from the top edge and place it over to the left # then pull th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Artillery Loop
The artillery loop is a knot with a loop on the bight for non-critical purposes. The artillery loop must have the loop loaded or it will slip and contract easily. It is an inferior knot to the alpine butterfly knot, possibly dangerously so, in that it can be yanked out of shape and turn into a running knot or noose. Budworth states that this knot is often described as being best suited to take a load on only one of the ends, but reliable information on which end is difficult to find. Tying the knot Image:ArtilleryLoop HowTo.jpg, Artillery loop step by step Image:ArtilleryLoop FinalKnot.jpg, Finished Artillery loop Usage The name ''harness loop'' derives from the fact that the knot was used when assisting horses on difficult terrain. Similarly, the name ''artillery loop'' or ''artilleryman's hitch'' derives from the fact that it was used when hauling field artillery into position. See also * Harness bend * List of knots This list of knots includes many alternative na ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loop (knot)
This page explains commonly used terms related to knots. B Bend A bend is a knot used to join two lengths of rope. Bight A bight has two meanings in knotting. It can mean either any central part of a rope (between the standing end and the working end) or an arc in a rope that is at least as wide as a semicircle. "Any slack part of a rope between the two ends, particularly when curved or looped." In either case, a bight is a length of rope that does not cross itself. Knots that can be tied without use of the working end are called knots ''on the bight''. Binding knot Binding knots are knots that either constrict a single object or hold two objects snugly together. Whippings, seizings and lashings serve a similar purpose to binding knots, but contain too many wraps to be properly called a knot. In binding knots, the ends of rope are either joined together or tucked under the turns of the knot. Bitter end Another term for the working end. C Capsizin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rope
A rope is a group of yarns, plies, fibres, or strands that are twisted or braided together into a larger and stronger form. Ropes have tensile strength and so can be used for dragging and lifting. Rope is thicker and stronger than similarly constructed cord, string, and twine. Construction Rope may be constructed of any long, stringy, fibrous material, but generally is constructed of certain natural or synthetic fibres. Synthetic fibre ropes are significantly stronger than their natural fibre counterparts, they have a higher tensile strength, they are more resistant to rotting than ropes created from natural fibres, and they can be made to float on water. But synthetic ropes also possess certain disadvantages, including slipperiness, and some can be damaged more easily by UV light. Common natural fibres for rope are Manila hemp, hemp, linen, cotton, coir, jute, straw, and sisal. Synthetic fibres in use for rope-making include polypropylene, nylon, polyesters (e.g. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bowline
The bowline ( or ) is an ancient and simple knot used to form a fixed loop at the end of a rope. It has the virtues of being both easy to tie and untie; most notably, it is easy to untie after being subjected to a load. The bowline is sometimes referred to as ''King of the knots'' because of its importance. Along with the sheet bend and the clove hitch, the bowline is often considered one of the most essential knots. The common bowline shares some structural similarity with the sheet bend. Virtually all end-to-end joining knots (i.e., bends) have a corresponding loop knot. Although the bowline is generally considered a reliable knot, its main deficiencies are a tendency to work loose when not under load (or under cyclic loading), to slip when pulled sideways, and the bight portion of the knot to capsize in certain circumstances. To address these shortcomings, a number of more secure variations of the bowline have been developed for use in safety-critical applications, or by s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sheepshank
A shank is a type of knot that is used to shorten a rope or take up slack, such as the sheepshank. The sheepshank knot is not stable. It will fall apart under too much load or too little load. The knot has several features which allow a rope to be shortened: * It provides two loops, one at each end of the knot which can be used to pass another rope through * The knot remains somewhat secure under tension; the coarser the rope the more secure it is (see Disadvantages, below) * The knot falls apart easily when tension is removed Construction methods A sheepshank knot may be constructed as follows: ... * Pull a section of rope back and lay it alongside the rope, so that the rope forms a Z approximately 20 cm long. * Flatten the Z so that there are 3 sections of rope lying alongside each other, with two U-bends where the rope reverses direction. * At each U-bend, grasp the U-bend in one hand, thus holding two of the rope sections. With the other hand form a small loop in the r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
