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Ceilling fan 1b

Input: rotor carrying yellow propeller (electric motor).

Pink gear is fixed to the pink crank that is mounted idly on the fan base.

Motion is transmitted from the yellow propeller to the pink crank through two gear drives. Axes of revolution joints of the pink crank and the green frame are concurrent.

Use worm drives for large transmission ratio (for example: two worm drives and one spur gear drive).

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