Clock springs, also known as a power springs, are made by winding a pre-stressed flat strip of spring material on an arbor and into a retaining ring to create a compact power source. They provide torsion and are sometimes used in place of the traditional torsion spring, where their circular movement is more appropriate to the application. As the name implies, they are most commonly used in traditional clocks and watches, however they do have a much wider range of applications such as scenery retraction in theaters.
