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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 223

An illustration from 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, leaf 223
Fig. 90. Part Section of Pump Governor the diaphragm 1 in such a manner that any movement of the latteroperates the former. When the maximum pressure is attained, theregulating spring 2 is so adjusted that the diaphragm 1 is pressed 191 96 ELECTRIC RAILWAYS … Fig. 91. Part Section of Pump Governor 192 ELECTRIC RAILWAYS 97 downward. This moves the sHde valve 3 and uncovers the port B,which is in communication with the chamber C. The air pressurenow in the chamber C forces the piston 4 upward, thereby openingthe switch in the motor circuit, and the motor…

Electrical engineering

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