Chains

Chain From Wikipedia, the free encyclopedia Jump to: , For other uses, see . A broad metal chain made of -shaped links. A metal chain with diamond shaped link pins. Roller chains. A chain is a series of connected links. This article is about the literal, physical chain. A chain is usually made of . Chains are usually made in one of two styles, according to their intended use: Those designed for lifting, such as when used with a ; for pulling; or for securing, such as with a , have links that are shaped, which makes the chain flexible in two . Those designed for transferring power in machines have links designed to mesh with the teeth of the of the machine, and are flexible in only one dimension. They are known as . Chains can also be decorative as . Uses for Chain Specific uses for chain include: , chain that transfers power from the pedals to the drive-wheel of a bicycle thus propelling it , the main feature that differentiated the safety bicycle , type of machine gun that utilizes a chain, driven by an external power source, to actuate the mechanism rather than using recoil , type of water pump where an endless chain has positioned on it circular discs , lifting device made from two curved steel legs , portable mechanical, motorized saw , used on curb bits when riding a horse , a type of security chain on a door that makes it possible to open a door from the inside while still making it difficult f...