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 69
A simple form is shown in thecut. To a base-board is attached an electro-magnet. Abar of soft iron, which is its armature, is carried by aflat spring which draws it away from the magnet. Acontact screw is so arranged as to touch the armaturespring when the armature is drawn away fromthe magnet. To… … Fig. 26. The Vibrating Bbll. The connections are shown in dotted lines. From THE SAFE PROTECTOR. 69 one binding post a wire runs directly to one of themagnet terminals. From the other terminal of themagnet the wire connects with the armature spring.From the other binding post a wire runs to…
Electric apparatus and appliances · Electric toys
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