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See also: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
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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
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(see COLLAR)
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Ornamental chains are made with a See also:great variety of links, but those intended for utilitarian purposes are mostly of two types
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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
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The addition of studs is reckoned to increase the load which the See also:chain can safely See also:bear by 50%
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Small chains of the open-link type are to a great extent made by machinery
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For larger sizes the See also: 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 . |
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