![]() Traction, pulling and lifting Ball chain pull switch for a ceiling light On chain-linked handcuffs, the cuffs are held together by a short chain.Prisoner transport restraints, a combination which consists of a pair of handcuffs attached by a longer chain to a pair of leg irons.Leg iron chains ( fetters), an alternative to handcuffs.Gang transport chain, a chain used to shackle two or more inmates together for transport or work outside the facility, forming a chain gang.Door chain, a type of security chain on a door that makes it possible to open a door from the inside while still making it difficult for someone outside to force their way inside.Chain mail, a type of armor consisting of small metal rings linked together in a pattern to form a mesh.Chain link fencing, fencing that utilizes vertical wires that are bent in a zigzag fashion and linked to each other.Chain boom, large chains used to exclude warships from harbors and rivers.Bicycle lock (or bicycle chain), lockable chain.Belly chain (or waist chain), a physical restraint worn by prisoners, consisting of a chain around the prisoner's waist, to which the prisoner's hands are chained or cuffed Prisoner in belly chain.Ball and chain, a 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.Timing chain, used to transfer rotational position from the crankshaft to the valve and ignition system on an internal combustion engine, typically with a 2:1 speed reduction.Chainsaw, portable mechanical, motorized saw using a cutting chain to saw wood.Chain pumps, type of water pump where a loop of chain inset discs is passed around then through a tube submerged in liquid.Chain gun, type of machine gun that is driven by an external power source, sometimes connected by a chain, to actuate the mechanism rather than using recoil.Chain drive, the main feature that differentiated the safety bicycle.Bicycle chain, transfers power from the pedals to the drive-wheel of a bicycle, thus propelling it.Tie chain, used to hold in place a tie to the underlying shirt front.Omega chain, a pseudo-chain where the 'links' are mounted on a backing rather than being interlinked.Decorating clothing, some people wear wallets with chains connected to their belts, or pants decorated with chains.Chain of office, collar or heavy gold chain worn as insignia of office or a mark of fealty in medieval Europe and the United Kingdom.Jewelry chain, many necklaces and bracelets are made out of small chains of gold and silver.Belly chain, type of body jewelry worn around the waist.Uses for chain Links of the American Revolutionary War-era Hudson River Chain as a memorial at West Point The load can be transferred from a chain to another object by a chain stopper. Two distinct chains can be connected using a quick link, carabiner, shackle, or clevis. They are known as roller chains, though there are also non-roller chains such as block chains. ![]() Those designed for transferring power in machines have links designed to mesh with the teeth of the sprockets of the machine, and are flexible in only one dimension.Small chains serving as jewellery are a mostly decorative analogue of such types. ![]() Those designed for lifting, such as when used with a hoist for pulling or for securing, such as with a bicycle lock, have links that are torus shaped, which make the chain flexible in two dimensions (the fixed third dimension being a chain's length). ![]() Chains can be classified by their design, which can be dictated by their use: A chain may consist of two or more links. ( Learn how and when to remove this template message)Ī common metal short-link chain Roller chainsĪ chain is a serial assembly of connected pieces, called links, typically made of metal, with an overall character similar to that of a rope in that it is flexible and curved in compression but linear, rigid, and load-bearing in tension. Please help improve this article by introducing citations to additional sources. Relevant discussion may be found on the talk page. This article relies largely or entirely on a single source.
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