What is detent?

  • (noun): A hinged catch that fits into a notch of a ratchet to move a wheel forward or prevent it from moving backward.
    Synonyms: pawl, click, dog

Detent

A detent is a device used to mechanically resist or arrest the rotation of a wheel, axle, or spindle. Such a device can be anything ranging from a simple metal pin to a machine. The term is also used for the method involved.

Read more about Detent.

Some articles on detent:

Pierre Le Roy - Invention of The Detent Escapement
... In 1748, he invented a pivoted detent type of escapement, or detached escapement, which makes him the inventor of the detent escapement "The invention of the detached escapement belongs to P ...
Mechanical Escapements - Detent Escapement
... The detent or chronometer escapement is a type of detached escapement, and was most commonly used on marine chronometers, although some precision watches during the 18th and 19th century also used it ... The early form was invented by Pierre Le Roy in 1748, who created a pivoted detent type of escapement, this though was theoretically deficient ... The first effective design of detent escapement was invented by John Arnold around 1775, but with the detent pivoted ...
Detent - Examples
... A well-known example of a detent can be seen on the popular game show "Wheel Of Fortune", which employs rubber "fingers" to stop the wheel at valid points after the wheel is spun by a ... or volume controls with a separate detent to match each of the digits on the control knob (typically 10) ... Rotary switches typically employ detents to keep the control shaft properly aligned with the appropriate contact ...
John Arnold - Arnold's Second Patent of 1782
... Around 1780, Earnshaw modifyied his detent escapement by mounting the detent on a spring to create the spring detent escapement ... Another part of the patent concerned the escapement—a modification of Arnold's pivoted detent escapement that essentially mounted the detent on a spring ...
Mechanical Escapements - Detent Escapement
... The detent or chronometer escapement is a type of detached escapement, and was most commonly used on marine chronometers, although some precision watches ... The early form was invented by Pierre Le Roy in 1748, who created a pivoted detent type of escapement, this though was theoretically deficient ... The first effective design of detent escapement was invented by John Arnold around 1775, but with the detent pivoted ...