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 323
285 18 ELECTRIC HEATING certainty. The warmer consists of two parts: the chocolate pan ofsheet metal and the hermetically sealed metal receptacle containingthe heating element, Fig. 33. Fig. 34 shows the warmer mounted in a table. This short enumerationof a few of the industrialapplications will… … Fig. 34. Chocolate Warmer, Set in Table the development of this type of electrical apparatus. MEDICAL APPLIANCES Attention has been called to the employment of electricheating apparatus on account of the sanitary conditions which itmakes possible. It is, therefore, no wonder that the medical…
Electrical engineering
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