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Fireman's Chair Knot
A fireman's chair knot (also known as the chair knot) is a knot tied in the bight forming two adjustable, lockable loops. The knot consists of a handcuff knot finished with a locking half hitch around each loop. The loops remain adjustable until the half hitches are tightened. Usage The knot was first introduced by the Victorian chief fire officer Eyre Massey-Shaw in 1876. Made with suitable rope by qualified personnel this knot can be used as a rescue harness capable of supporting a person while being hoisted or lowered to safety. One loop supports the body, around the chest and under the arms, and the other loop supports the legs, under the knees. Tied towards the middle of a line, one end is used for lowering and the other end can serve as a tagline, to control the victim's position with respect to hazards during the descent. A snug fitting of this knot should restrain the victim, even if unconscious. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Handcuff Knot
A handcuff knot is a knot tied in the bight having two adjustable loops in opposing directions, able to be tightened around hands or feet. The knot itself does not possess any inherent locking action, and thus is not as easy to use for such purposes as the name might suggest. The knot is also known as a ''hobble knot'' for similar reasons, from the idea that the knot was sometimes used on the legs of horses to limit the distance their riders had to walk in the morning to retrieve them. Image:Webeleinenstek-1.jpg, 1. Two loops Image:Fesselknoten-1.jpg, 2. Pull through Image:Fesselknoten.jpg, 3. Tighten The knot consists of two simple loops, overlaid, and with the ends pulled through. At that stage, the knot is slippery and easy to adjust. The knot can be "locked" by making one or more overhand knots with the loose ends in the manner of a reef knot.Des Pawson, ''Pocket Guide to Knots & Splices'' (Edison, NJ: Chartwell Books, Inc., 2002), 146. The sizes of the two loops can ... [...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] |
Tom Fool's Knot
The Tom fool's knot, also called the conjurer's knot or bow knot, is sometimes considered a handcuff knot but is somewhat inferior for this purpose to the knot which usually bears that name. It is a good knot with which to commence a slightly fancy sheepshank. It is also used as a trick knot due to the speed with which it can be made. History Tom fool's knot is believed to be the knot ''epankylotos brokhos'' described by the 1st Century Greek physician Heraklas. Tying It is formed by making two loops, not exactly overlaying each other. The inner half of each hitch or loop is pulled under and through the outer side of the opposite loop. See also *Handcuff knot, a similar knot sometimes incorrectly identified as a Tom fool's knot *List of knots References External links Ian Knot shoelace knot based on Tom fool's knot {{knot-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Climbing Harness
A climbing harness is a piece of equipment that allows a climber to tie in (climbing), tie in to the safety of a rope. It is used in climbing, rock and ice climbing, ice climbing, abseiling, and lowering; this is in contrast to other activities requiring ropes for access or safety such as industrial rope work (such as window cleaning), construction, and rescue and recovery, which use safety harnesses instead. Overview While an improvised harness can be created out of a length of rope or nylon webbing, commercially produced harnesses specific to climbing rock and ice are the norm. These characteristically include a dedicated tie-in loop, padding, and amenities such as gear loops. Most commercial climbing harnesses meet the guidelines and manufacturing standards of organizations such as the Union Internationale des Associations d'Alpinisme (UiAA) or European Committee for Standardization. Harnesses of users involved in climbing should be attached to dynamic (kernmantle) rope, whi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Handcuffs
Handcuffs are Physical restraint, restraint devices designed to secure an individual's wrists in proximity to each other. They comprise two parts, linked together by a Link chain, chain, a hinge, or rigid bar. Each cuff has a rotating arm which engages with a ratchet (device), ratchet that prevents it from being opened once closed around a person's wrist. Without a key, handcuffs cannot be removed without specialist knowledge, and a handcuffed person cannot move their wrists more than a few centimetres or inches apart, making many tasks difficult or impossible. Handcuffs are frequently used by law enforcement agencies worldwide to prevent Suspect, suspected criminals from escaping from Arrest, police custody. Styles Metal handcuffs There are three main types of contemporary metal handcuffs: chain (cuffs are held together by a short chain), hinged (since hinged handcuffs permit less movement than a chain cuff, they are generally considered to be more secure), and rigid soli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Knot
A knot is an intentional complication in Rope, cordage which may be practical or decorative, or both. Practical knots are classified by function, including List of hitch knots, hitches, List of bend knots, bends, List of loop knots, loop knots, and Rope splicing, 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 (knot), 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 Topology, 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
In The Bight
In knot tying, a bight is a curved section or slack part between the two ends of a rope, string, or yarn.. "Any slack part of a rope between the two ends, particularly when curved or looped." A knot that can be tied using only the bight of a rope, without access to the ends, is described as in the bight. The term "bight" is also used in a more specific way when describing Turk's head knots, indicating how many repetitions of braiding are made in the circuit of a given knot. Bight vs. open loop Sources differ on whether an open loop or U-shaped curve in a rope qualifies as a bight. treats bights and loops as distinct, stating that a curve "no narrower than a semicircle" is a bight, while an open loop is a curve "narrower than a bight but with separated ends". However, ''The Illustrated Encyclopedia of Knots'' (2002) states: "Any section of line that is bent into a U-shape is a bight." Slipped knot In order to make a slipped knot (also slipped loop and quick release knot) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Handcuff Knot
A handcuff knot is a knot tied in the bight having two adjustable loops in opposing directions, able to be tightened around hands or feet. The knot itself does not possess any inherent locking action, and thus is not as easy to use for such purposes as the name might suggest. The knot is also known as a ''hobble knot'' for similar reasons, from the idea that the knot was sometimes used on the legs of horses to limit the distance their riders had to walk in the morning to retrieve them. Image:Webeleinenstek-1.jpg, 1. Two loops Image:Fesselknoten-1.jpg, 2. Pull through Image:Fesselknoten.jpg, 3. Tighten The knot consists of two simple loops, overlaid, and with the ends pulled through. At that stage, the knot is slippery and easy to adjust. The knot can be "locked" by making one or more overhand knots with the loose ends in the manner of a reef knot.Des Pawson, ''Pocket Guide to Knots & Splices'' (Edison, NJ: Chartwell Books, Inc., 2002), 146. The sizes of the two loops can ... [...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] |
Rope
A rope is a group of yarns, Plying, plies, fibres, or strands that are plying, twisted or braided together into a larger and stronger form. Ropes have high tensile strength and can be used for dragging and lifting. Rope is thicker and stronger than similarly constructed cord, String (structure), string, and twine. Construction Rope may be constructed of any long, stringy, fibrous material (e.g., rattan, a natural material), but generally is constructed of certain natural fibre, natural or synthetic fibre, 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, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rope Rescue
Rope rescue is a subset of technical rescue that involves the use of rope, be it steel or cable rope, or more commonly used nylon, polyester, or other type of rope. Principles The key to any type of rescue is understanding and identifying the principles which are involved. Once the principles are identified, appropriate techniques or methods, which fits the circumstances, can be determined and applied. More recently, noncommittal vertical rescue techniques have been introduced. These skills make it possible to rescue a subject from a vertical environment without exposing the rescue professional (volunteer or paid) to the danger or risk of the vertical environment. These techniques involve skills used to rescue an individual(s) from their precarious situation, without sending a rescue professional over the edge or suspending them from the rope and safety equipment. An example of one such technique is the ''clip, snip, and lower/raise'' technique. It is often used for fall recov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
