Cumming, Linnæus, b. 1843. [from old catalog] · New York, D. Van Nostrand · leaf 365
tery, (1) a commutator (A), by which the current isadmitted, and by which its direction can be reversed; (2) acontact breaker (B), for alternately making and breakingcontact in the primary ; (3) a condenser ((7), which makes thebreaking of contact more sudden; (4) the primary coil and core;(5) the… … Fig. 225. spindle in two parts. Upon its surface are fastened twobrass plates connected by wires with the two ends of the 10 CONTACT BREAKER
Electricity
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