Davis's manual of magnetism : including galvanism, magnetism, electro-magnetism, electro-dynamics, magneto-electricity, and thermo-electricity (1854)
Davis, Daniel · Boston : Palmer and Hall · leaf 296
he pins. These sparks are sometimes half aninch in length. The shocks are stronger than withthe machine last described, and the decomposingpower considerably greater. vibrating elect rotome. 279 454. Magneto-Electric Machine, with Yibra.t-ING Electrotome.—III this form, the circuit is… … are of more uniform strength with this interruptoithan with the mechanical one, as they occur onlywhen the primary current charges the electro-magnetsufficiently to draw down its armature. For sparks,decompositions, &c., the primary current can be usedwithout passing it through the coil of the…
