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 … 3 4 5 6 7 i Distance X in Inches Fig. 52.—Pull of electromagnets. 10 u 12 shown in diagram B, Fig. 51, then there is no sudden jar at the endof the stroke but rather a cushion effect; the large increase of pull xTaken from an article by Underhill, Electrical World and Engineer,Vol. 45, p. 934…
Electrical engineering
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