One of the mysteries of the English language finally explained.
- another term for crown wheel
- ‘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.’
Late 17th century: contrate (a rare adjective meaning ‘opposed, contrary’) from medieval Latin contrata ‘lying opposite’, from Latin contra ‘against’.
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