The spelling of "crank handle" follows the English orthographic rules, where the "a" sound is spelled with the letter 'a', while the "k" sound is spelled with the letter 'k'. The word is transcribed in IPA as /kræŋk ˈhændəl/, with a voiced velar nasal sound represented by 'ng', a plosive alveolar fricative sound represented by 'k', and a vowel sound represented by 'a'. The word refers to a mechanical device used for manually turning or rotating something, which is featured in various machines and tools.
A crank handle is a type of mechanical tool or device that is typically constructed with a cylindrical or rod-like shape, usually made of metal or sturdy material, that enables manual operation or rotation of various mechanisms or objects. It is designed with an ergonomic grip for easy handling and often features a knob or a lever at one end.
The primary function of a crank handle is to convert linear motion or force into circular or rotational motion. It is commonly used in a wide range of applications, including machinery, vehicles, and household items. For instance, a crank handle is often found in hand-operated devices such as manual winches or pulley systems, where turning the handle engages gears or chains to raise or lower loads.
Moreover, crank handles are widely utilized in engines to manually start or operate machinery, as seen in automobiles, lawnmowers, or old-fashioned sewing machines. In these cases, rotating the handle activates an internal mechanism, such as a crankshaft, that initiates the necessary movements to power the engine.
Overall, a crank handle is an essential mechanical component that allows for the transmission of human energy or force into mechanical motion. Its versatility, ease of use, and reliability make it a crucial tool for various manual operations and applications.
The word "crank handle" is composed of two separate words, "crank" and "handle".
The term "crank" dates back to the late 17th century and has roots in the Middle English word "cranken", meaning "to twist or turn". This Middle English word itself originated from the Old Norse word "krankr", which means "bent, crooked, or twisted".
On the other hand, the word "handle" dates back to the 14th century and comes from the Middle English word "handel", which means "to touch or feel with the hands". This word has origins in the Old English word "handlian", which means "to handle or touch".
When these two words come together, "crank handle" collectively refers to a device or tool that is twisted or turned using a handle.