Hawkins electrical guide. Questions, answers & illustrations; a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833- · New York, T. Audel · leaf 275
a single motor equipment is practically thesame as any other single motor starting box, excepting that the resistancehas sufficient carrying capacity to be left in the circuit some time. Whenthe motor is to operate at full speed all the resistance is cut out. Toreverse, a reversing notch is i)laccd… … Fig. 771.—Controller of the Rauch and Lang electric vehicles. It is of the flat radial type.Two movable copper leaf contacts of ample size make all commutations necessary to obtainthe various speeds. Five speeds forward and reverse are provided. Magnetic blow out coils are used on all controllers…
Electrical engineering
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