DISCUSSION OF SERIES DYNAMO-ELECTRIC 



MACHINES.* 



Carl Kinsley. 



I. 



From fundamental considerations: 



a. The dynamo and motor surfaces are obtained. 



b. The use of a generator driving a single motor run- 

 ning at constant speed under all loads is considered. 



II. 



From tests of particular machines : 



a. The dynamo and motor surfaces are gotten. 



b. A method of getting instantaneous values of engine 

 speed is established. 



c. The operation of the motor is predetermined. 



* Presented in abstract before The Academy of Science of St. Louis, 

 April 18, 1898. 



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