Lever the power out, and the ratio of output to input force is given by the ratio of the distances from the fulcrum to the points of application of these forces. This is known as the "law of the lever." The mechanical advantage of a lever can be determined by considering the balance of moments or torque, "T", about the fulcrum. where F is the input force to the lever and F is the output force. The distances "a" and "b" are the perpendicular distances between the forces and the fulcrum. Since the moments of torque must be balanced, formula_3 .
Darcy Lever Fogg died in September 1630, the holding had increased to twenty messuages, a water mill and moiety of two fulling mills along with other land in Darcy Lever In 1632 the mesne tenure had changed and Ellis Crompton after two post mortem inquisitions about John Crompton (his father), held Darcy Lever directly. By 1665, the Bradshaws had taken a considerable parcel of land for their estate. It is not sure how John Bradshaw (died 1662 ) and his wife, the daughter of Robert Lever, (who had purchased some land from Chisnall) came about the land but it can be assumed