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CHAIN (through the O. Fr. citable, ch...

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Originally appearing in Volume V05, Page 801 of the 1911 Encyclopedia Britannica.
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CHAIN (through the O. Fr. citable, chcene, &c., from See also:Lat. catena)  , a See also:series of links of See also:metal or other material so connected together that the whole forms a flexible See also:band or See also:cord . Chains are used for a variety of purposes, such as fastening, securing, or connecting together two or more See also:objects, supporting or lifting weights, transmitting See also:mechanical See also:power, &c.; or as an See also:ornament to serve as a See also:collar, as a See also:symbol of See also:office or See also:state, or as See also:part of the insignia of an See also:order of See also:knighthood; or as a See also:device from which to hang a jewelled or other See also:pendant, a See also:watch, &c . (see COLLAR) . Ornamental chains are made with a See also:great variety of links, but those intended for utilitarian purposes are mostly of two types . In See also:stud chains a stud or See also:brace is inserted across each See also:link to prevent its sides from collapsing inwards under See also:strain, whereas in open link chains the links have no studs . The addition of studs is reckoned to increase the load which the See also:chain can safely See also:bear by 50% . Small chains of the open-link type are to a great extent made by machinery . For larger sizes the See also:smith cuts off a length of See also:iron See also:rod of suitable See also:diameter, forms it while hot to the shape of the link by repeated blows of his See also:hammer, and welds together the two ends of the link, previously slipped inside its See also:fellow, by the aid of the same See also:tool; in some cases the bending is done in a mechanical See also:press and the See also:welding under a power hammer (see also See also:CABLE) . Weldless chains are also made; in A . G . Strathern's See also:process, for instance, cruciform See also:steel bars are pressed, while hot, into links, each without join and engaging with its neighbours . Chains used for transmitting power are known as See also:pitch-chains; the chain of a See also:bicycle (q.v.) is an example .

From the use of the chain as employed to bind or fetter a prisoner or slave, comes the figurative application to anything which serves as a constraining or restraining force; and from its series of connected links, to any series of objects, events, arguments, &c., connected by See also:

succession, logical sequence or reasoning .

End of Article: CHAIN (through the O. Fr. citable, chcene, &c., from Lat. catena)
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