Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 184
Fig. 33. Small Ventilating Outfit to be Connectedto Lamp Socket 159 38 UNDERWRITERS REQUIREMENTS … Fig. 34. Common Type of MotorRheostat of small size, do not usually require starting rheostats. Fig. 33 showsa small ventilating outfit to be connected to a lamp socket. Rheostats with Motors. Rheostats are used with motors for start-ing them and for controlling theirspeed. They should always be…
Electrical engineering
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