A chain is a series of connected links which are typically made of metal. A chain may consist of two or more links.
Those designed for lifting, such as when used with a hoist; for pulling; or for securing, such as with a bicycle lock, have links that are torus shaped, which make the chain flexible in two dimensions (The fixed third dimension being a chain's length.)
Those designed for transferring power in machines have links designed to mesh with the teeth of the sprockets of the machine, and are flexible in only one dimension. They are known as roller chains, though there are also non-roller chains such as block chain.
Two distinct chains can be connected using a quick link which resembles a carabiner with a screw close rather than a latch.
Uses for chain
Uses for chain include:
Chain of office, collar or heavy gold chain worn as insignia of office or a mark of fealty in medieval Europe and the United Kingdom
Decorating clothing, some people wear wallets with chains connected to their belts, or pants decorated with chains
The chains 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. The term originated from the practice of the sailor standing between the shrouds when casting the line, which were attached to the hull by chainplates, or, in earlier sailing ships, to lengths of chain along the ship's side. A length of chain was usually fixed at waist height to the stanchions above the chains, as an added safety measure. The chains were common on large sailing vessels, but the role of leadsman and swinging the lead to obtain depth soundings declined with developments in echo sounding, and ships are rarely now equipped with chains.
Peter Kemp, ed. (1976). The Oxford Companion to Ships and the Sea. Oxford. ISBN0-586-08308-1.
Catene (internationally released as Chains) is a 1949Italian film in the Melodrama genre directed by Raffaello Matarazzo . It had an impressive commercial success, being seen by 6 million people, one in eight Italians of the time, and was followed by a series of other six successful films still directed by Matarazzo and featuring the couple Amedeo Nazzari and Yvonne Sanson. The film was remade in 1974.
A husband kills his wife's ex-boyfriend, who was blackmailing her. He flees to America, but is sent back to Italy to stand trial. The only way he can be set free is if his wife confesses to adultery – so the murder can be considered a crime of passion – but this estranges her from her family. Starring Amedeo Nazzari and actress of Greek origin Yvonne Sanson. Maligned by critics because it did not conform to precepts of neorealism, this did not prevent its unexpected box office success.
The original Minneapolis campus overlooked the Saint Anthony Falls on the Mississippi River, but it was later moved about a mile (1.6km) downstream to its current location. The original site is now marked by a small park known as Chute Square at the intersection of University and Central Avenues. The school shut down following a financial crisis during the American Civil War, but reopened in 1867 with considerable financial help from John S. Pillsbury. It was upgraded from a preparatory school to a college in 1869. Today, the University's Minneapolis campus is divided by the Mississippi River into an East and West Bank.