Page:Canadian patent 29537.djvu/16

 be reversed.

It will be found if the fields of both the generator and motor be strongly energized, that starting the generator starts the motor, and that the speed of the motor is increased in synchronism with the generator.

Motors constructed and operated upon this principle maintain almost absolutely the same speed for all loads within their normal working limits, and in practice it will be observed that if the motor is suddenly overloaded to such an extent as to check its speed, the speed of the generator, if its motive power be not too great, is diminished synchronously with that of the motor. These qualities render this particular form of motor vary useful under certain conditions.

With this description of the nature of the invention and of some of the various ways in which it is carried into effect, attention is called to certain characteristics which the applications of the invention possess, and the advantages which it offers.

In this motor, considering for convenience that represented in Figure 9, it will be observed that since the disk D has a tendency to follow continuously the points of greatest attraction, and since these points are shifted around the ring once for each revolution of the armature of the generator, it follows that the movement of the disk D will be synchronous with that of the armature A. This feature will be found to exist in all other forms in which one revolution of the armature of the generator produces