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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 30

An illustration from 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, leaf 30
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… … poles and up the other side for a considerable distance.A modification of this armature con-sists of two little bars of iron withbrass rollers attached to their ends.They are placed in the position A,as shown in the dotted lines in thecut. On approaching them withthe magnet they become…

Electric apparatus and appliances · Electric toys

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