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 226
the shaft by meansof the brass plate and pillars.Or the wire may be terminatedby a second spring pressing upona cylindrical part of the axis. 332. The break-piece is ar-ranged in such a manner, that theelectro-magnet is charged whenany one of the iron bars is brought near it by the mo-tion of the… … 210 D AVI S S MANUAL. from its bearing. The armature being no longerattracted, the wheel moves on by its momentumuntil the next bar comes into the same position,causing the magnet to be recharged; this is thenattracted in its turn, and passes on like the preced-ing one. 333. The spring playing on…
