A set of top, consisting of a knob and a top, is essentially characterized by the fact that the control is constituted by a hollow elongate body, arranged to contain the batteries and electric drive switch, which has one of its angled ends and therein an electric motor, the shaft of which protrudes in an extension sufficient to receive under pressure a flexible bushing having at its base a hole that is coupled to the actuator stem of the top; said cap being provided with a crown flange of great amplitude, whose flexible edge serves to attack the spinning top, the latter being in motion, to accelerate its turning movement, reversing the rotation of the motor through the commutator. (Machine-translation by Google Translate, not legally binding)
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