Crank -

Early models found in China dating back to the Western Han dynasty (202 BC - 9 AD) were used for winnowing fans and grinding grain.

Cranks can be powered by hand (e.g., a winch) or foot (e.g., a bicycle pedal). 2. Key Examples & Applications Early models found in China dating back to

Manually operated car windows use a crank to roll the glass up or down. 3. History of the Crank a winch) or foot (e.g.

The housing that contains the crankshaft and connecting rods. Early models found in China dating back to

The Banū Mūsā brothers described them in their Book of Ingenious Devices . 4. Modern Components