Small motors, transformers, electromagnets; a practical presentation of design and construction data for small motors, small low- and high-tension transformers, electromagnets, and induction coils (1920)
Stoller, Hugh Montgomery, Austin, F. E. (Frank Eugene), 1873-, Seeger, Edwin Wilbur, 1892- joint author, American Technical Society · Chicago, American Technical Society · leaf 290
with the flat plunger, but in this case the pull is lessand the stroke is greater. It has been found that the best resultsare obtained when the angle of the cone is 60 degrees, and thisangle is used in the following discussion. Length of Stroke. In order to get the same work out of thecone plunger… … and that of the flat plunger is equal to Therefore the new area will be equal to twice the old, and to keep the reluctance thesame, the length of the air gap will have to bedoubled. This length of air gap is perpendic-ular to the faces of the cone, and the stroke isof course longer than the gap.…
Electric motors · Electric transformers · Electromagnets · Induction coils
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