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 751
, and the firstone was used on experimentson the New York elevatedrailroad in 1886. The ma-chine (Figs. 5 and 6) consists,in brief, of two curved field-magnets bolted to two polepieces, the whole carried bybrackets on each side, whichbrackets center on the axleand also carry the armature.The free… … Fig. 5.—Sprague motor.
Mechanical engineering
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