Cranking

Cranking refers to the act of operating a hand-crank or similar mechanism to generate power or motion. This action is often employed in situations where electrical power is unavailable or as a backup method. Devices that utilize cranking can range from simple hand-held tools to more complex machinery.

Historically, hand cranks were essential for starting internal combustion engines, a practice largely superseded by electric starters. They are still found on some small engines, such as those in lawnmowers and portable generators, as well as on some older vehicles. In some recreational activities, like operating a hand-cranked music box or a novelty toy, the crank provides a direct mechanical link to produce sound or movement.

Beyond personal use, cranking can be a method for emergency power generation. Devices like hand-crank radios and flashlights allow users to produce electricity for essential functions during power outages. These often incorporate a dynamo or generator that converts the rotational energy of the crank into electrical energy. Similarly, some manual water pumps or other farm equipment utilize a crank mechanism for operation. The efficiency of cranking varies greatly depending on the design of the device and the effort applied.