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 198
e manner justdescribed. The forcewith which the baris drawn up is in-creased by its attrac-tion for a straightarmature fixed abovethe coils. The bentbar, becoming an e-lectro-magnet, movestowards the armature,as the latter woulddo, if free to move, towards a fixed magnet. NearB is a break-piece, so… … 182 DAVISS MANUAL. 291. Upright Axial Engine. — In the instrumentrepresented in Fig. 122, the alternating movement r,. ion of two bent bars is con- ttg. ±44, veyed by cranks to abalance-wheel above thehelices. As the wheelrevolves, the current isconveyed to each doublehelix in succession, bymeans…
