The power source drives the rotation shaft, and the rotation shaft drives the rotation element to rotate.

The rotation-driving gear directly drives each rotation-driven gear (4) in order to achieve rotation.

The brush unit is provided with a rotation driving mechanism for rotating the polishing brush, and a revolution driving mechanism for revolving the polishing brush.

A rotation angle detection device for detecting the angle of rotation of a rotation body as a measurement target.

Rotating means then rotate that distribution and so rotate the objects.

The nutation rotational axes and the nutation rotational centres of the axisymmetric rotating elements are coincident, unlike the the spinning rotation centres.

The agitators' rotation direction is periodically reversed, with the time of reversed operation in each cycle being less than the time of forward operation.

The cable engages the first housing such that rotation of the first housing about the rotational axis causes the cable to rotate in the rotational axis.

Desirably, the rotation control part rotates the stirring rods at the high speed after stopping the low-speed rotation of the stirring rods for a predetermined time.

Furthermore, means (38) are provided for phase rotation of the complex modulation signal with a compensating phase rotation defined by the determined phase rotation (Υ).

Reverse rotation of the bicycle's crank assembly causes the conventional freewheel to also rotate in a reverse direction without rotating the wheel of the bicycle.

The rotating member brings the gas to rota- tion in the direction (r) of rotation for separation, by means of centrifugal forces, of liquid impurities from the gas.

with the anti-rotation device in use; and

Finally, the steps of rotary drilling at a first rotation rate, changing the rotation rate to a second rotation rate, and drilling at the second rotation rate are repeated.

The game device according to the present invention rotates the order-change units by the rotation units rotated at the axis of the normal line.