. Electric railway journal . Figs. 1 and 2—Thermostat and Thermostatic Heater Switch constant point within a degree or two of neutral. Thethermostat proper is shown in Fig. 1. It takes currentdirect from the trolley and operates a thermostatic switchwhich opens and closes the main heater circuit. There isno arcing whatever on the thermostatic points. Currentflows through the main switch only during the moment of.

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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkmcgrawhillp