Compound lever could be measured. 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
Darcy Lever were several collieries in Darcy Lever, the Darcy Lever Pit, Davenport Pit, Snow Hill Pit, Victoria Pit, Top o'th'Meadows Colliery. In addition closer to Farnworth there was Fogg Pit owned by Andrew Knowles and Sons, near the Bolton and Bury Canal, which was the scene of an explosion which killed 10 miners. Darcy Lever was a township or civil parish in the ecclesiastical parish of Bolton le Moors in the Salford hundred in the historic county of Lancashire and in 1837 became part of the Bolton Poor Law Union. In 1898 Darcy Lever was incorporated into the County Borough of