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 76
Fig. 53.—Thermostat complete with the regulator, battery and motor, attachedto a steam supply valve.5 66 MECHANICS OF THE HOUSEHOLD During this movement the arm L has Hfted the valve arm N andthe valve admits steam to the radiators, at the same time the con-tact M has been shifted from the…
Heating · Lighting · Plumbing
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