chain tensioning device
1Dropout (bicycle part) — A semi horizontal dropout on a steel frame road bicycle converted to a single speed. The non replaceable derailleur hanger (below the axle) and an eyelet (above the axle) for mounting a fender or rack are now unused …
2Fixed-gear bicycle — A fixed gear bicycle or fixed wheel bicycle, is a bicycle without the ability to coast. The sprocket is screwed directly on to the hub and there is no freewheel mechanism. A reverse thread lockring is usually fitted to prevent the sprocket from… …
3Eccentric (mechanism) — An eccentric in mechanical engineering is a circular disk ( eccentric sheave ) solidly fixed to a rotating axle with its centre offset from that of the axle (hence the word eccentric , out of the centre). It is most often employed in steam… …
4Glossary of nautical terms — This is a glossary of nautical terms; some remain current, many date from the 17th 19th century. See also Wiktionary s nautical terms, Category:Nautical terms, and Nautical metaphors in English. Contents: A B C D E F G H I J K L M N O P Q R …
5Anchor windlass — An anchor windlass within the forecastle on the main deck of the sailing ship Balclutha. The vertical shaft is rotated by a portion of the capstan above …
6Sewing machine — Elias Howe s lockstitch machine, invented 1845 A sewing machine is a textile machine used to stitch fabric, cards and other material together with thread. Sewing machines were invented during the first Industrial Revolution to decrease the amount …
7Chairlift — For the musical group, see Chairlift (band). A stairlift is sometimes called a chairlift . Hunter Mountain chairlift …
8T-44 — This article is about the Soviet medium tank. For the military training aircraft, see Beechcraft King Air. T 44 T 44A in Brest, Belarus Type Medium …
9Tensioner — A tensioner is a device that applies a force to an object to maintain it in tension. Often the amount of force is adjustable. There are tensioners for applying a tensioning force to drive belts and chains, fibers and bolts. One type of tensioner… …
10Kite mooring — Kites are given mooring by many methods. Watercraft and aircraft traditionally have the term mooring applied to making the watercraft or aircraft fast to some external object. The kite has two parts: wing and kite line; the kite essentially needs …
