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
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