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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 39

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 39
ttery to beemployed, and the length and section of the core andits material. The windings upon both legs must be in oppositedirections. After winding the straight portion of one,the wire may be carried diagonally across the inter-vening space to the opposite face of the other leg, andthe winding… … Fig. 13. Joules Electro-Magnet. A very powerful form of magnet is here illustrated. SOLENOID MAGNETS. 39 It was devised by Joule, largely on experimental bases,and presents an excellent example of a highly efficientelectro-magnet. The core is readily made by filing off one side of apiece of gas…

Electric apparatus and appliances · Electric toys

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