wire, symmetrically placed, and designated by C C C' C'.
The diametrically opposite coils are connected up so as to co-operate in pairs in producing free poles on diametrically opposite parts of the ring. The four free ends thus left are connected to terminals T T T' T' as indicated.
Near the ring, and preferably inside of it, there is mounted on an axis or shaft a magnetic disk D generally circular in shape, but having two segments cut away as shown. This disk should turn freely within the ring R.
The generator G is of an ordinary type, that shown in the present instance having field magnets N S and cylindrical armature core A wound with the two coils B B'. The free ends of each coil are carried through the shaft a' and connected respectively to insulated contact rims b b b' b'. Any convenient form of collector or brush bears on each ring and forms a terminal by which the current to and from the ring is conveyed. These terminals are connected to the terminals of the motor by the wires and L' in the manner indicated, whereby two complete circuits are formed, one including, say, the coils B of the generator and C' C' of the motor, and the other the remaining coils B' end C C of the generator and the motor.
It remains now to explain the mode of operation of this system, and for this purpose reference is made to the diagrams Figures 1 to 8 and 1a to 8a for an illustration of the various phases through which the coils of the generator pass when in operation, and the corresponding and resultant magnetic changes produced in the motor.
