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contrate wheel

Line breaks: con|trate wheel
Pronunciation: /ˈkɒntreɪt
 
/

Definition of contrate wheel in English:

noun

Another term for crown wheel.
Example sentences
  • If the pivot guard needs to be rotated to suit a contrate wheel to one side, carefully remove the balance cock, complete with hairspring, balance wheel etc.
  • Note how the balance wheels are in a horizontal position being driven by the movement train through a contrate wheel which allows for the change in position.
  • The ivory contrate wheel drives the metal pinion for the ivory crown wheel.

Origin

late 17th century: contrate (a rare adjective meaning 'opposed, contrary') from medieval Latin contrata 'lying opposite', from Latin contra 'against'.

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