Compound lever the force of pushing back the stick to the levers and they rub against the wheels, using friction to slow and eventually stop the train. These are everyday applications of this mechanism. A piano key is a compound lever of the first-class, since the fulcrum is between the weight to be moved and the power. The purpose of this lever is to translate a small movement (depression of the key) into a larger and fast movement of the hammer on the strings. The quality of the resulting tone depends on whether the final speed is brought about by gradual or
Darcy Lever was living in 1246, ancestor of the Levers of Little Lever, who held a share of the manor until the beginning of the 17th century. In the Lever of Great Lever are charters referring to the Lever family. Adam de Lever and his son Ellis attested a grant; no. 45. Ellis son of Adam de Lever granted to William his son and his heirs a portion of his land in Little Lever. The bounds began at 'the Langcestre' (alias Hanycestre) where Denebrook fell into the great water called Lever (alias Letoce); ascended the brook to a ditch dividing Little Lever