Turnbuckle

Turnbuckle

A turnbuckle is a device for adjusting the tension or length of ropes, cables and tie rods. It normally consists of two threaded eyelets, one screwed into each end of a small metal loop, one with a left-hand thread and the other with a right-hand thread. The tension can be adjusted by rotating the loop, which causes both eyelets to be screwed in or out simultaneously.

Turnbuckles are most commonly used in applications which require a great deal of tension; they can range in mass from about ten grams for thin cable used in a garden fence, to thousands of kilograms for structural elements in buildings and suspension bridges.

This device is also known as a bottlescrew and is used for tensioning a ship's rigging and lashings, it also used for wrestling and boxing rings.

See also

* Guy-wire


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Look at other dictionaries:

  • turnbuckle — 1703, catch or fastening for windows and shutters, from TURN (Cf. turn) + BUCKLE (Cf. buckle). Meaning coupling with internal screw threads for connecting metal rods is attested from 1877 …   Etymology dictionary

  • turnbuckle — [tʉrn′buk΄əl] n. a metal sleeve with opposite internal threads at each end for the threaded ends of two rods or for ringbolts, forming a coupling that can be turned to tighten or loosen the rods or wires attached to the ringbolts …   English World dictionary

  • turnbuckle — A device which allows the linkage to be lengthened or shortened. A threaded hole is found on each end of the turnbuckle. The linkage which attaches to the turnbuckle can be screwed in or out on each end to create the necessary length. Usually a… …   Dictionary of automotive terms

  • turnbuckle — noun Date: circa 1877 a device that usually consists of a link with screw threads at both ends, that is turned to bring the ends closer together, and that is used for tightening a rod or stay …   New Collegiate Dictionary

  • turnbuckle — /terrn buk euhl/, n. a link or sleeve with a swivel at one end and an internal screw thread at the other, or with an internal screw thread at each end, used as a means of uniting or coupling, and of tightening, two parts, as the ends of two rods …   Universalium

  • turnbuckle — noun a) A coupling device consisting of two eyelets or other connection points connected in screw threads. The joint in between can be turned to shorten or lengthen the device with mechanical advantage provided by the screw threads. b) A link… …   Wiktionary

  • turnbuckle — n. coupling used to tighten rods or cables by a screwing mechanism (with two screws or with a screw and a swivel) …   English contemporary dictionary

  • turnbuckle — noun a coupling with internal screw threads used to connect two rods, lengths of boat s rigging, etc. lengthwise or to regulate their length or tension …   English new terms dictionary

  • turnbuckle — turn•buck•le [[t]ˈtɜrnˌbʌk əl[/t]] n. mac a rotating link or sleeve with internal screw threads at each end, used to tighten or connect the ends of a rod or cable • Etymology: 1695–1705 …   From formal English to slang

  • turnbuckle — /ˈtɜnbʌkəl/ (say ternbukuhl) noun a link or sleeve with a swivel at one end and an internal screw thread at the other, or with an internal screw thread at each end, used as a means of uniting or coupling, and of tightening, two parts, as the ends …  

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