Mechanics of the household; a course of study devoted to domestic machinery and household mechanical appliances (1918) (14592791410)

Identifier: mechanicsofhouse00keen (find matches)

Title: Mechanics of the household; a course of study devoted to domestic machinery and household mechanical appliances

Year: 1918 (1910s)

Authors: Keene, E. S. (Edward Spencer), b. 1864

Subjects: Heating Lighting Plumbing

Publisher: New York, McGraw-Hill book company, inc.

Contributing Library: The Library of Congress

Digitizing Sponsor: The Library of Congress

Text Appearing Before Image:

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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 right-hand contact to the left,and the electric circuit is ready to be made in the controller at thepoint K, When the temperature has fallen a sufficient amountthe controller bar C will make contact at Kand the motor will again make a half cycle,changing the valve back to its original posi-tion. This process will be kept up so longas the motor is wound and there is sufficientfuel in the furnace to raise the temperature.Fig. 55 shows the method of connecting theelectric wires from the battery to the con-(g^ 30 M ^ troller. A three-wire cable connects thebattery, and makes contacts as indicated atHj K and J. The wires are shown attachedto the motor as in Fig. 55. A wire is takenfrom either pole of t

1918 books heating history of lighting plumbing books book illustrations high resolution images from internet archive library of congress

1918

Library of Congress

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