| These were driven by a series of bevel gears, contrate wheels, pinions and long axles extending from the centre to the ends. |
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| The ivory contrate wheel drives the metal pinion for the ivory crown wheel. |
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| 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. |
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| He will be part of the directors, but we're agreed that for now he needs to contrate on the final games he has to play. |
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