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 755
Car Motor,Fig 16, has the square formof frame, but the change inthe shape of the magneticcircuit, which is circular,makes it possible to utilizefour poles with great ad-vantage. They are also \\.^ ^^^^BW^^^^^KI^MIWAf^^rather narrow, and conse-quently are capable of beingmagnetized by compara-tively… … Fio. l.^-Thoni9on Hoiistc single-rc<lii<tii)n
Mechanical engineering
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