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, the roller configured for rolling on a floor. The 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 the 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 the single roller on the floor alternately in two opposite directions.

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 copper metal alloy, for use in making elements for promoting and/or stimulating vital energy comprises between 60% and 70% in weight of copper (Cu), between 16% and 24% in weight of silver (Ag), between 3% and 6% in weight of zinc (Zn), between 3% and 6% in weight of manganese (Mn) and between 0.5%> and 6%> in weight of germanium (Ge). Tin (Sn) in percentage comprised between 3% and 6% can also be provided for. Platinum (Pt) can also be provided for between 0.1% and 5% in weight. The alloy is used for making for example sheets in form of plates or strips which are associated to articles of various types.