Cumming, Linnæus, b. 1843. [from old catalog] · New York, D. Van Nostrand · leaf 151
tion explained,that when the machine is in action the diagonal conductor Emay be removed without stopping the action of the machineuntil a discharge of the armatures takes place with one of thesparks, an accident to which all these machines are liable. The machines known as the Wimshurst is similar… … Fig. 90. In it we have two plates, one fixed and the other revolvingrapidly in front of and at a small distance from it, by meansof a spindle through its centre. The fixed plate (Fig. 91) has, at opposite ends of a diameter, Chap. IV.] Electrical Machines. 133 two apertures or windows cut in the…
Electricity
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