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  2. Jewellery chain - Wikipedia

    en.wikipedia.org/wiki/Jewellery_chain

    This is similar to the Venetian chain, but the links are loser and rectangular, whereas the Venetian's are always square and tighter. [16] Brick: or Serpentine chain, Cobra, Boston link, S-link, C-link or Flat link, is a semi-rigid chain, pressed so tightly that the links have almost fused into a solid band. [16] [14] Byzantine

  3. Chatelaine (chain) - Wikipedia

    en.wikipedia.org/wiki/Chatelaine_(chain)

    Chatelaine bags refer to bags suspended from a waistband by cord or chain, which were popular from the 1860s to the end of the 19th century. [8] Chatelaines were worn by many housekeepers in the 19th century [9] and in the 16th century Dutch Republic, [citation needed] where they were typically used as watch chains for the most wealthy. Similar ...

  4. Serpentine subgroup - Wikipedia

    en.wikipedia.org/wiki/Serpentine_subgroup

    Bowenite, a variety of antigorite, is an especially hard serpentine (5.5) of light to dark apple green color, often mottled with cloudy white patches and darker veining. It is the serpentine most frequently encountered in carving and jewelry. The name 'retinalite' is sometimes applied to yellow bowenite. The New Zealand material is called tangiwai.

  5. Chains (nautical) - Wikipedia

    en.wikipedia.org/wiki/Chains_(nautical)

    The chains, also called the chain-wales or channels, [1] were small platforms, built on either side of the hull of a ship, used to provide a wide purchase for the shrouds, and to assist in the practice of depth sounding. The chains provided a platform for a 'leadsman', the sailor assigned to swing the sounding line, or 'lead' into the water. [2]

  6. Chain (unit) - Wikipedia

    en.wikipedia.org/wiki/Chain_(unit)

    The UK statute chain is 22 yards, which is 66 feet (20.1168 m). This unit is a statute measure in the United Kingdom, defined in the Weights and Measures Act 1985. [6] One link is a hundredth part of a chain, which is 7.92 inches (20.1168 cm).

  7. Gunter's chain - Wikipedia

    en.wikipedia.org/wiki/Gunter's_chain

    A quarter chain, or 25 links, measures 16 feet 6 inches (5.03 m) and thus measures a rod (or pole). Ten chains measure a furlong and 80 chains measure a statute mile. [1] Gunter's chain reconciled two seemingly incompatible systems: the traditional English land measurements, based on the number four, and decimals based on the number 10.

  8. Timing belt (camshaft) - Wikipedia

    en.wikipedia.org/wiki/Timing_belt_(camshaft)

    In a piston engine, either a timing belt (also called a cambelt) or timing chain or set of timing gears is a perishable component used to synchronize the rotation of the crankshaft and the camshaft. This synchronisation ensures that the engine's valves open and close at the correct times in relation to the position of the pistons.

  9. Catenary - Wikipedia

    en.wikipedia.org/wiki/Catenary

    A chain hanging from points forms a catenary. The silk on a spider's web forming multiple elastic catenaries.. In physics and geometry, a catenary (US: / ˈ k æ t ən ɛr i / KAT-ən-err-ee, UK: / k ə ˈ t iː n ər i / kə-TEE-nər-ee) is the curve that an idealized hanging chain or cable assumes under its own weight when supported only at its ends in a uniform gravitational field.