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Old Fashioned Pull Chain Ceiling Lights

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Series of connected links which are typically made of metal

A mutual metal curt-link concatenation

A chain is a series assembly of connected pieces, called links, typically made of metal, with an overall character like to that of a rope in that it is flexible and curved in compression but linear, rigid, and load-bearing in tension. A chain may consist of ii or more than links. Chains can be classified by their blueprint, which can be dictated by their employ:

  • Those designed for lifting, such as when used with a hoist; for pulling; or for securing, such as with a cycle lock, accept links that are torus shaped, which make the chain flexible in ii dimensions (the fixed third dimension being a chain'due south length). Minor chains serving as jewellery are a mostly decorative analogue of such types.
  • Those designed for transferring power in machines take links designed to mesh with the teeth of the sprockets of the car, and are flexible in merely i dimension. They are known as roller chains, though there are also non-roller chains such every bit cake concatenation.

Ii distinct bondage can be connected using a quick link, carabiner, shackle, or clevis. Load can be transferred from a chain to some other object past a chain stopper.

Uses for chain [edit]

Uses for chain include:

Decoration [edit]

  • Jewelry chain, many necklaces and bracelets are made out of small chains of gold and silvery
  • Chain of part, collar or heavy gold chain worn as insignia of office or a mark of fealty in medieval Europe and the United Kingdom
  • Decorating clothing, some people wearable wallets with chains connected to their belts, or pants decorated with chains
  • Omega concatenation, a pseudo-chain where the 'links' are mounted on a backing rather than beingness interlinked

Power transfer [edit]

  • Wheel chain, transfers power from the pedals to the drive-wheel of a bicycle, thus propelling information technology. An application of roller concatenation.
  • Chain drive, the principal feature that differentiated the rubber bike[ clarification needed ]
  • Concatenation gun, blazon of car gun that is driven by an external ability source, sometimes connected by a concatenation, to actuate the mechanism rather than using recoil
  • Chain pumps, type of water pump where an countless chain has positioned on it round discs[ clarification needed ]
  • Chainsaw, portable mechanical, motorized saw using a cutting concatenation to saw wood
  • Timing chain, used to transfer rotational position from the crankshaft to the valve and ignition system on an internal combustion engine, typically with a 2:ane speed reduction.

Security and restraint [edit]

  • Brawl and chain, phrase that can refer to either the actual restraint device that was used to slow down prisoners, or a derogatory description of a person's significant other
  • Abdomen concatenation (or "waist chain"), a physical restraint worn by prisoners, consisting of a chain around the prisoner'southward waist, to which the prisoner'southward hands are chained or cuffed

  • Bicycle lock (or "Wheel Chain"), lockable chain
  • Chain blast, big chains used to exclude warships from harbors and rivers
  • Chain link fencing, fencing that utilizes vertical wires that are aptitude in a zig zag fashion and linked to each other
  • Chain mail, a blazon of armor consisting of small-scale metallic rings linked together in a pattern to course a mesh.
  • Door concatenation, a blazon of security chain on a door that makes it possible to open a door from the inside while notwithstanding making information technology difficult for someone outside to force their style within
  • Gang transport chain, a chain used to shackle ii or more inmates together for transport or work outside the facility, forming a chain gang
  • Leg iron chains (fetters), an alternative to handcuffs
  • Prisoner ship restraints, a combination which consists of a pair of handcuffs fastened past a longer chain to a pair of leg irons
  • Security concatenation, chain with square edges to prevent cut with bolt-cutters
  • on chain-linked handcuffs the cuffs are held together by a short chain

Traction, pulling and lifting [edit]

Brawl chain pull switch for a ceiling light

  • Anchor cablevision, as used by ships and boats, in British nautical usage the component is a cable, the material is chain
  • concatenation slings
  • concatenation hoist
  • Concatenation steam shipping
  • Chain-linked Lewis, lifting device made from ii curved steel legs
  • Adjourn chain, used on curb $.25 when riding a horse
  • High-tensile chain (or "Transport chain"), concatenation with a high tensile strength used for towing or securing loads
  • Jack chain, a toothed chain used to motion logs
  • Lead shank (or "Stud concatenation"), used on horses that are misbehaving
  • Pull switch, an electrical switch operated past a brawl chain
  • Rigid concatenation actuator, a type of chain that merely bends in one management, allowing information technology to operate under compression
  • Snow bondage, used to improve traction in snow
  • Lavatory chain, the chain attached to the cistern of an old-fashioned W.C. in which the flushing power is obtained by a gravity feed from above-head tiptop. Although nearly cisterns no longer work similar that, the phrase "pull the concatenation" is withal encountered to mean "flush the toilet".

Weapons [edit]

  • Chain gun, type of motorcar gun that is driven by an external power source, sometimes connected past a concatenation, to actuate the mechanism rather than using recoil
  • Chain-shot, a type of ammunition for a cannon, used to inflict damage to the rigging of a canvas vessel in naval warfare
  • Chain weapon, a medieval weapon made of one or more weights attached to a handle with a chain

Other uses [edit]

  • Chains are a common component of the deflection associates of disc golf game baskets.
  • Chains can exist used every bit a percussion instrument for special effects, such as in Schönberg's Gurre-Lieder and Janáček'southward From the Business firm of the Dead.
  • Keychain, a small chain that connects a small item to a keyring
  • Chain sinnet, a method of shortening a rope or other cable while in use or for storage
  • Chain run up, a sewing and embroidery technique

Types of chain [edit]

  • Apartment concatenation, grade of chain used importantly in farm machinery
  • Ladder chain, a light wire chain used with sprockets for low torque ability transmission
  • O-ring chain, a specialized type of roller chain
  • Roller concatenation, the type of chain most usually used for manual of mechanical ability on bicycles, motorcycles, and in industrial and agricultural machinery
  • Silent chain, a type of chain in which the links engage the sprockets similarly to gear teeth
  • Stud link chain is chain with metal between the sides of each link keeping the attached links in identify. This helps prevent bunching when the chain is run out from a storage bin, as for use in anchoring ships.
  • Short link concatenation is chain where the gap betwixt attached links is pocket-size relative to thickness.
  • Long link chain
  • Calibrated concatenation is concatenation where the link lengths are within a given tolerance, so that it reliably engages with a windlass.

Connections [edit]

Several methods are available to connect concatenation ends to each other or to other objects, and to employ a load to a chain away from the ends. These methods are usually specific to the blazon of concatenation, and must exist of the right size.

Invention [edit]

The metal link chain has been in employ since at least 225 BC.[1]

Symbolism [edit]

The prevalent modernistic symbolism is oppression,[ commendation needed ] due to the employ for a mechanical restriction of the liberty of a human being or animal.

Bondage can also symbolize interconnectivity or interdependence. Unicode, in versions vi.x, contains the U+1F517 🔗 LINK SYMBOL, which may show chain link(southward). Information technology may also denote a hyperlink.

Gallery [edit]

  • Silent chain

  • Rope concatenation

  • Twisted link chain

  • Wheat chain

  • Single jack chain

  • Double jack chain

  • Stud link chain

  • Ladder link concatenation

  • Foxtail concatenation

  • Singapore chain

  • Rolo chain

  • Cycle Chain

See likewise [edit]

  • Belt (mechanical)
  • Buffers and chain coupler
  • Chain (unit)
  • Concatenation gang
  • Chain letter of the alphabet
  • Gunter's chain
  • Lariat concatenation

References [edit]

  1. ^ As early on as 225 BC, chain was used to draw a saucepan of water up from a well. This very early bucket chain was composed of connected metal rings.Tsubakimoto Chain Co., ed. (1997). The Complete Guide to Chain. Kogyo Chosaki Publishing Co., Ltd. p. 240. ISBN0-9658932-0-0. p. 211. Retrieved 17 May 2006.

External links [edit]

  • National Association of Concatenation Manufacturers, NACM WELDED STEEL CHAIN SPECIFICATIONS
  • Chain Spec Basics, Grades and Links Explained
  • "Chain". Encyclopædia Britannica. Vol. v (11th ed.). 1911.

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