Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 67
B Cushion Type .Stopped Jronclad Type Fig. 51.—Types of ironclad electromagnet. tained at the end of the stroke as shown in curve B, Fig. 52.1If a hole for the plunger be bored through the iron cover as
Electrical engineering
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