Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics (1892)
Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 238
the field-raagnets are made very heavy, so as to maintain anextreraelv intense field with comparatively little expenditure of current-energy, and the poleprojections on the armature being almost directly in contact with the pole-pieces, concentratethe lines of force of the fielddirectly upon the… … Fig. 54.—Weston armature.
Mechanical engineering
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