Magnetic spinning top game

摘要

A spinning top game includes a spinner mounting a permanent magnet, a housing having a dished top base for supporting the spinner above an induction coil in the housing connected in an electric circuit including a source of electric potential and an electronic switch so arranged that when the spinner is rotated on the dished base, the moving magnetic field of the magnet cuts the coil turns and the resulting induced current operates the electronic switch intermittently to connect the source of electric potential across the coil, the resulting current flow through the coil producing a magnetic field which is imposed upon the moving magnet spinner such as to accelerate its movement. The dished base is provided with an upwardly convex central portion, a raised ridge spaced outwardly from the convex central portion and extending radially outward therefrom, and one or more hazards adjacent the outer periphery of the top for catching the spinner or otherwise preventing it from returning toward the center of the dished base and into the magnetic field of the coil.