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Scientific American, Vol. 59, No. 20 (1888) (1888)

leaf 7

An illustration from Scientific American, Vol. 59, No. 20 (1888), 1888, leaf 7
fans, turning Oldham, have recently sent to the Suez Canal an im- lathes, printing presses, shoe factories, and machinery current, and from 14 horse power to 150 horse power on proved patent portable electric light plant for the use constant potential circuits, the machines being con- of every… … especially arranged for the manufac- ture of dynamos and motors. The factory consists of two large build- ditions. Theyare known as “constant current” or ings located in the suburbs of the city of Baltimore, ‘*constant potential ” motors as the case may be. These Md., one being a two-story brick…

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