Additional examples are adjusted to the entries in an automated way - we cannot guarantee that they are correct.
The drive system used a cone and two bevel wheels, one for forward and the other for reverse.
The rotor is turned by the wind, and through a bevel wheel drives a shaft inside the column (if used) or in the centre of the tower.
The equipment they used consisted of two concentric tubes leading to a horizontal jet, and an arrangement of bevelled wheels for turning the lump of lime.
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