Electric toy making for amateurs. This work treats on the making of electrical toys, electrical apparatus, motors, dynamos and instruments in general ... By T. O'Conor Sloane .. (1914)
Sloane, T. O'Conor (Thomas O'Conor), 1851-1940 · New York, The N.W. Henley publishing co. · leaf 29
net is in question a bent piece of softiron may be used to connect the two poles. A magnet 28 ELECTRIC TOT MAKING, may even be left without any keeper, if placed inthe magnetic meridian. For horseshoe magnets asingle keeper, the armature, suffices to connect bothpoles. In using magnets all jarring… … Fig. Thb Uolling Armature. Rolling Armatures. The rolling armature consists of a short cylindricalaxis of iron to whose center a wheel is attached. Thewheel may be made of lead or other metal. When itis placed as shown upon a horseshoe magnet it willadhere, but if the magnet is properly inclined…
Electric apparatus and appliances · Electric toys
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