Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 156
evel orthe air pressure in a tankwithin prescribed limits. When the float F in Fig. 156falls below a certain point, theprojection e raises the lever Iand W is moved over. WhenW passes the vertical positionit drops over and the projectiong snaps the switch s into con-tact and closes the control… … Fig. 156.—Float switch. -Starters for large motors see page 119, and, when the 132 PRINCIPLES OF ELECTRICAL ENGINEERING [Chap.xxi motors have to be operated from a distance, the switches aremagnetically operated and are closed in their proper order by amaster controller operating on a control…
Electrical engineering
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