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A Chinese finger trap (also known as a Chinese finger puzzle, Chinese thumb cuff, Chinese handcuffs, and similar variants) is a gag toy used to play a practical joke on unsuspecting children and adults. The finger trap is a simple puzzle that traps the victim's fingers (often the index fingers) in both ends of a small cylinder woven from bamboo. The initial reaction of the victim is often to pull their fingers outward, but this only tightens the trap. The way to escape the trap is to push the ends toward the middle, which enlarges the openings and frees the fingers.
A single-ended version of the device, sold as a "girlfriend trap", has been available since at least 1870, back when it was recorded as "Mädchenfänger" or "girl catchers". [1] The first recorded use of the term finger trap to characterize the toy was in 1900 in an American newspaper. [2] [3] The earliest known use of the term Chinese finger trap was in 1953, in an advertisement for the device in a newspaper in the American state of Ohio. [2]
The tightening is simply a normal behavior of a cylindrical, helically wound braid, usually the common biaxial braid. Pulling the entire braid lengthens and narrows it. The length is gained by reducing the angle between the warp and weft threads at their crossing points, but this reduces the radial distance between opposing sides and hence the overall circumference. The more one pulls, the more the circumference shrinks and the trap tightens. The same effect is used in specialized textile manufacturing, the Vivien Kellems cable grip, Indonesian woven fruit presses, and by fly-fishers. [4]
Chinese finger traps are not intended for use as restraint devices. Victims of the prank may break the bamboo strips through physical strength when they pull outwards, attempting to free their fingers and stretching the trap beyond its limits.
One variation on the Chinese finger trap has uses in orthopedic medicine—namely, providing even pressure to the patient's digit(s) and at the same time immobilizing the joints—and serves a similar purpose as a traction device. Its development goes back to Austria in 1870 when Dr. Steinberger, a dentist at the Rudolfsspital in Vienna, reported the discovery of his doctoral student Schmall, who got the idea to use the toy ″Mädchenfänger" (girl catcher) for the extension of fingers and arms. [1] The principle was adapted for the use in surgery, [5] and by 1873 was termed Schmall'sches Extensionsgeflecht ("Schmall's Extension Mesh"). [6]
Another variant is the towing sock. It uses the same principle to seize the end of a cable to be pulled through a tube or tunnel.
Parachute lines are often assembled [7] using finger traps where the line is looped back into itself or another line.
The Chinese finger trap is a common metaphor for a problem that can be overcome by relaxing, i.e. not trying too hard to solve it; for example, in acceptance and commitment therapy. [8] The gag has been used in a number of films and television productions, such as the Stan Laurel short Dr. Pyckle and Mr. Pryde (1925); [9] the Our Gang short Moan and Groan, Inc. , where they are referred to as Japanese handcuffs (1929); "Romance on the Range" (1942); "The Beast with Twenty Fingers" episode of Dobie Gillis (1963); the Star Trek: The Next Generation episode "The Last Outpost" (1987); The Simpsons episode "This Little Wiggy" (1998). [10]
Thumbcuffs are a metal restraining device that lock thumbs in proximity to each other.
The windlass is an apparatus for moving heavy weights. Typically, a windlass consists of a horizontal cylinder (barrel), which is rotated by the turn of a crank or belt. A winch is affixed to one or both ends, and a cable or rope is wound around the winch, pulling a weight attached to the opposite end. The Greek scientist Archimedes was the inventor of the windlass. A surviving medieval windlass, dated to 1360 –1400, is in the Church of St Mary and All Saints, Chesterfield. The oldest depiction of a windlass for raising water can be found in the Book of Agriculture published in 1313 by the Chinese official Wang Zhen of the Yuan Dynasty.
A booby trap is a device or setup that is intended to kill, harm or surprise a human or another animal. It is triggered by the presence or actions of the victim and sometimes has some form of bait designed to lure the victim towards it. The trap may be set to act upon trespassers that enter restricted areas, and it can be triggered when the victim performs an action. It can also be triggered by vehicles driving along a road, as in the case of improvised explosive devices (IEDs).
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.
The term boot refers to a family of instruments of torture and interrogation variously designed to cause crushing injuries to the foot and/or leg. The boot has taken many forms in various places and times. Common varieties include the Spanish boot and the Malay boot. One type was made of four pieces of narrow wooden board nailed together. The boards were measured to fit the victim's leg. Once the leg was enclosed, wedges would be hammered between the boards, creating pressure. The pressure would be increased until the victim confessed or lost consciousness.
Cooties is a fictitious childhood disease, commonly represented as childlore. It is used in the United States, Canada, Australia, New Zealand, and the Philippines as a rejection term and an infection tag game. It is similar to the British 'dreaded lurgi', and to terms used in the Nordic countries, in Italy, India and Iraq. A child is said to "catch" cooties through close contact with an "infected" person or from an opposite-sex child of a similar age.
Bondage in BDSM is the activity of tying or restraining people using equipment such as chains, cuffs, or collars for mutual erotic pleasure. According to the Kinsey Institute, 12% of females and 22% of males respond erotically to BDSM.
A lucet is a tool used in cordmaking or braiding which is believed to date back to the Viking and Medieval periods, when it was used to create cords that were used on clothing, or to hang items from the belt. Lucet cord is square, strong, and slightly springy. It closely resembles knitted I-cord or the cord produced on a knitting spool. Lucet may unravel if cut, but is easily fixed with a small knot. Unlike other braiding techniques such as kumihimo, finger-loop braiding or plaiting, where the threads are of a finite length, lucetted braids can be created without pre-measuring threads and so it is a technique suited for very long cords.
Cock and ball torture (CBT) is a sexual activity involving the application of pain or constriction to the male genitals. This may involve directly painful activities, such as genital piercing, wax play, genital spanking, squeezing, ball-busting, genital flogging, urethral play, tickle torture, erotic electrostimulation, kneeing or kicking. The recipient of such activities may receive direct physical pleasure via masochism, or emotional pleasure through erotic humiliation, or knowledge that the play is pleasing to a sadistic dominant. Many of these practices carry significant health risks.
A garrote or garrote vil is a weapon and a method of capital punishment. It consists of a handheld ligature of chain, rope, scarf, wire or fishing line, used to strangle a person.
A gag is a device used in sexual bondage and BDSM roleplay. Gags are usually associated with roleplays involving bondage, but that is not necessarily the case. The person who wears the gag is regarded as the submissive partner, while the other is regarded as the dominant one. People may wear gags for a variety of reasons. Some people derive erotic pleasure from a gag, either in a submissive or dominant role. When combined with other physical restraints, the wearing of a gag can increase the wearer's sense of helplessness and anxiety level within a BDSM scene by rendering them unable to speak during sexual activity, which some people enjoy.
Water torture encompasses a variety of techniques using water to inflict physical or psychological harm on a victim as a form of torture or execution.
A cable tie is a type of fastener for holding items together, primarily electrical cables and wires. Because of their low cost, ease of use, and binding strength, cable ties are ubiquitous, finding use in a wide range of other applications. Cable ties were first manufactured by Thomas & Betts under the brand name Ty-Rap.
A Prusik is a friction hitch or knot used to attach a loop of cord around a rope, applied in climbing, canyoneering, mountaineering, caving, rope rescue, ziplining, and by arborists. The term Prusik is a name for both the loops of cord used to tie the hitch and the hitch itself, and the verb is "to prusik" or "prusiking". More casually, the term is used for any friction hitch or device that can grab a rope. Due to the pronunciation, the word is often misspelled Prussik, Prussick, or Prussic.
A practical joke device is a toy intended to confuse, frighten, or amuse individuals as a prank. Often, these toys are harmless facsimiles of otherwise potentially disgusting or terrifying objects, such as vomit or spilled nail polish. In other instances, they are created as seemingly harmless items designed to humorously malfunction in such a way as to confuse or harm the target of a prank. The devices are frequently sold in magic or specialty shops, purchased over the Internet, or crafted for oneself. The most notable joke deviceis the whoopee cushion.
A dildo is a sex toy, often explicitly phallic in appearance, intended for sexual penetration or other sexual activity during masturbation or with sex partners. Dildos can be made from a number of materials and shaped similarly to an erect human penis. They are typically about the average length of an erect penis, 4–6 inches (10–15 cm), but some may be longer. A dildo's circumference is typically 4–5 inches (10–13 cm).
A bed base, sometimes called a foundation, is the part of a bed that supports the mattress. The bed base can itself be held in place and framed by the bedstead. In the United States, box-spring bed bases are very common. In Europe, sprung slats are much more common.
String is a long flexible structure made from fibers twisted together into a single strand, or from multiple such strands which are in turn twisted together. String is used to tie, bind, or hang other objects. It is also used as a material to make things, such as textiles, and in arts and crafts. String is a simple tool, and its use by humans is known to have been developed tens of thousands of years ago. In Mesoamerica, for example, string was invented some 20,000 to 30,000 years ago, and was made by twisting plant fibers together. String may also be a component in other tools, and in devices as diverse as weapons, musical instruments, and toys.
A towing sock or wire rope puller or wire pulling grip is a device that connects to the end of a cable, such as a power cable, in order to pull it through a tube or tunnel. It works by tightening around the cable when pulled, in the same manner as a Chinese finger trap. The towing sock is tubular and made of braided cable, open at one end and closed at the other where it connects to a tow line using an eye splice.