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 297
out passing it through the coil of the electro-tome. This is effected by turning the screw S, soas to raise the platinum point from the spring attachedto the armature. 455. Vibrating Electrotome.—In Pig. 176,the vibrating electrotome is shown in a form adapt-ed for use with either of the machines… … fixed to a spring, by which it is held up from thjpoles. The screw-cups at one extremity of the base board are to be connectedwith the cups of the ma-chine, and those at the otherend with the handles forshocks. The primary mag-neto-electric current is pass-ed through the helix, and a^^ *^ secondary…
