notch wheel
Definition
- Noun:
- Mechanical component: A "notch wheel" is a wheel with notches or indentations around its edge, used in machinery to create intermittent motion or to engage with a pawl or other mechanism.
- Ratchet wheel: In some contexts, "notch wheel" is synonymous with a ratchet wheel, where the notches allow movement in one direction only.
Usage Examples
- Noun:
- The engineer inspected the notch wheel to ensure it could properly engage with the pawl. (The wheel with notches was checked for correct mechanical function.)
- In the clock mechanism, the notch wheel controls the step-by-step movement of the hands. (The notched wheel regulates intermittent motion.)
Advanced Usage
- "Notch wheel and pawl system": A common mechanical arrangement where a pawl (a pivoted lever) catches in the notches of the wheel to prevent backward motion.
- The notch wheel and pawl system ensures the winch does not slip under load. (The ratcheting mechanism provides security in lifting equipment.)
Variants and Related Words
- Notch (n): a V-shaped cut or indentation in an edge or surface.
- Each notch on the wheel corresponds to a specific position. (Each indentation marks a stopping point.)
- Notched (adj): having notches.
- The notched wheel is made of hardened steel for durability. (The wheel with indentations is strong.)
Synonyms
- Ratchet wheel: a wheel with teeth or notches that allows motion in one direction only.
- Cog wheel (loosely): a wheel with teeth, though "cog wheel" often implies a gear.
Related Idioms
- "Notch up": to achieve or record something (not directly related to the wheel, but derived from "notch").
- The team notched up another victory. (They achieved another win.)
- "Take down a notch": to reduce someone's arrogance or status.
- His success took his rival down a notch. (It humbled the rival.)