Definition of contrate wheel in English:

contrate wheel

nounˈkɒntreɪt

another term for crown wheel
Example sentencesExamples
- These were driven by a series of bevel gears, contrate wheels, pinions and long axles extending from the centre to the ends.
- The ivory contrate wheel drives the metal pinion for the ivory crown wheel.
- 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.
- The back plate had a jewel for the contrate wheel.
- 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.

Origin

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

词汇	contrate wheel
释义	Definition of contrate wheel in English: contrate wheel nounˈkɒntreɪt another term for crown wheel Example sentencesExamples These were driven by a series of bevel gears, contrate wheels, pinions and long axles extending from the centre to the ends. The ivory contrate wheel drives the metal pinion for the ivory crown wheel. 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. The back plate had a jewel for the contrate wheel. 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. 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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