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
Little Lever only large house in the village which contained 9 hearths. The manor house, Little Lever Hall, built of wood and plaster was destroyed in the 18th century. It was a seat of the Levers in 1567 and after that the Andrews who inherited the Lever's estate in Rivington. There is a record of a coal pit in 1320. Records show there were fulling-mills in Little Lever before 1559. The holding of Adam Byrom of Salford who died in 1559 was described as "an estate of eight messuages, a moiety of two fulling-mills etc., in Little Lever", his three-year-old grandson Ralph,