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 133
its poles reversed. Thering, when set at liberty, will, unless placed exactlyat the centre, move towards the pole which is near-est, and, passing on till clear of the magnet, willturn round and present its other face. It will thenbe attracted, and pass again over the pole till it restsin… … VIBRATING COIL ENGINE. 117 low of their moving to some distance over the poles,N and S, of a steel magnet. When uninfluenced bythe electric current, the coils hang vertically fromtheir points of support. There are two cranks onthe axis of the balance-wheel above the magnet, whichconvert the…
