Mechanics of the household; a course of study devoted to domestic machinery and household mechanical appliances (1918)
Keene, E. S. (Edward Spencer), b. 1864 · New York, McGraw-Hill book company, inc.; · leaf 391
Fig. 269.—Service switches. The mechanism of this receptacle is exchangeable with the mech-anism of the double-pole switch as shown in Fig. 270,c. Heater Switch, Pilot and Receptacle.—Heating-device out-lets shall be equipped with combination of switch, pilot light and … (e) W^ (f) Fig. 270.— Local wall switches. receptacle with plug and spare pilot lamp. Figs. 268,a, b, c andd, represent various forms from which selection may be made.All are adapted for the same purpose and differ only in mechan-ical arrangement. ELECTRICITY 381 Service Switch.—The service…
Heating · Lighting · Plumbing
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