force" which, in accordance with well known theories, produces the action of the motor.
It is obvious that a proper progressive shifting, or movement of the lines of force may be utilized to set up a movement or rotation of either element of the motor, the armature or the field magnet, and that if the currents directed through the several circuits of the motor are in the proper direction no commutator for the motor will be required. So, to avoid all the usual commutating appliances in the system, the motor circuits are connected directly with those of a suitable alternating current generator. The practical results of such a system, its economical advantages, and the mode of its construction and operation will be described more in detail by reference to the accompanying drawings and diagrams.
Figures 1 to 8 and la to 8a, inclusive, are diagrams illustrating the principal of the action of this invention. The remaining Figures are views of the apparatus in various forms by means of which the invention may be carried into effect and which will be described in their order.
Referring first to Figure 9, which is a diagramatic representation of a motor, a generator and connecting circuits in accordance with the invention, H is the motor and G the generator for driving it. The motor comprises a ring or annulus R, preferably built up of thin insulated iron rings or annular plates, so as to he as susceptible as possible to variations in its magnetic condition.
This ring is surrounded by four coils of insulated
