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 .
Little Lever by about 1900 the firm had become a limited company. In 1951 Potter's amalgamated with the Eaglescliffe Chemical Company. The company closed in 1969 when it was owned by Albright & Wilson. Until closure Potter family members remained in senior management positions. Edmund Peel Potter was prominent in the local community and endowed a hospital on Chorley New Road, Bolton in pre-NHS years. His son Colonel Colin Kynaston Potter served with distinction in the Boer and First World Wars.(Ref.Papers in Little Lever library reference section) Little Lever was a hamlet, bounded on three sides, by the water courses, the River