Compound lever Compound lever The compound lever is a simple machine operating on the premise that the resistance from one lever in a system of levers will act as power for the next, and thus the applied force will be amplified from one lever to the next (as long as the mechanical advantage for each lever is greater than one). Almost all scales use some sort of compound lever to work. Other examples include nail clippers and piano keys. A lever arm uses the fulcrum to lift the load using and intensifying an applied force. In practice, conditions may prevent the use
Darcy Lever several ways, whilst the spellings differ the pronunciation was similar to 'lever' – Lethre 1221; Leuere 1278; Leuir 1282; Leuer 1291 and Leyver 1550. Initially, Lever was the name for the hamlets comprising the manor of Lever. In 1509 it became Darcye Lever, the distinguishing affix coming from possession by the D'Arcy family. "NOTE : Until 1509 the area called Darcy Lever today was part of the Manor of Little Lever. In the text, where the name is given in italicised text with square brackets, it refers to the area of Darcy Lever before it gained that name." Darcy Lever