Abstract: A baby rocking device, adapted to impart a reciprocating cycling rocking movement to a perambulator, push-chair or the like, comprising a single roller, having an electric motor arranged inside the roller, said roller being configured for rolling on a floor alternately in two opposite directions. The afore mentioned single roller includes an inner non-rotating core having two ends portions projecting from opposite ends of the roller and connected to two receiving and supporting members configured for receiving two respective wheels of the perambulator or push-chair, so that the perambulator or push-chair is placed astride said single roller, and a cylindrical outer shell for contact with the floor, which is rotatably mounted on the inner core. The electric motor is carried by the inner core and is provided for actuating the rotation of the outer shell alternately in two opposite directions of rotation, so as to cause rolling of said single roller on the floor alternately in two opposite directions.

Abstract: A wrist belt or bracelet having a timepiece function, comprises an annular plastic material body within which a flexible material strip which carries display means, an electronic control unit and an electrical power supply battery, is embedded. The display means and the electronic control unit are provided for displaying the time through numbers or symbols which are lighted along the abovementioned strip.