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), 1833-1928 · New York : T. Audel & Co. · leaf 523
med in 2,614 HAWKINS ELECTRICITY heating and lighting the cars during very cold weather exceeds20 per cent, of the power supplied to propel them. Both stoveand hot water systems however possess several disadvantages.They occupy useful space, require special attention, and intro-duce dust smoke and… … Fig. 3,081.—Type of electric heater suitable for installation under cross seats of car. heavy city service, where vestibules are not used and the carsare not run as frequently in one direction as the other, it ispractically impossible to heat them by any other system thanthat of electric heaters.…
Electrical engineering
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