n, we have the condi Ladd, a London instrument maker, constructed a machine tions requisite for the construction of a magneto-electric on this principle, which received the first prize at the Paris engine. We know that the lines of force must be frequently cut at right angles, and the whole problem… … Fig. 6.—IMPROVED FORM OF GRAMME’S MACHINE. Fig. 1—CLARK’S MAGNETO-ELECTRIC MACHINE, thatthe current should always flowin one direction. It consisted of a ring of soft iron, surrounded by insulated So soon as the year following Faraday’s discovery, Pixii, wire, and revolved between the poles of the…
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