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 .
Lever Brothers Factory agreed that Lever Bros would purchase three-quarters of the shares in J.Kitchen & Sons in return for cumulative preferred ordinary shares in Levers. Levers later bought all the remaining shares, and by about 1923-24 fully owned both companies. Shortly after, the company became known as Lever & Kitchen. In 1989, the Home and Personal Care businesses of Lever & Kitchen merged with Rexona in Australia to form L&K: Rexona. The company changed name in 1993 to Lever Rexona and in 2000 merged with Unilever Foods to form what is now Unilever Australasia. At its prime in 1958, the Balmain factory