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 45
ing. Magnetic Hemispheres. A very peculiar form of magnet is shown in thenext cut. Although a modification of it is attributedto Prof. Forbes, by Thompson in his recent work on u ELECTRIC TOY MAKING. the electro-magnet, it is really a very old form. The cutis a reproduction from Davis Manual of… … ?m^ Fig. 16. The Magnetic Hemispheres. have cut out an annular groove of size adapted to re-ceive a magnetizing coil. A slot is cut to permit thewires to come out where the two halves are face toface and in contact. When the current is turned on and passes through MAGNETIC HEMISPHERES. 45 the coil,…
Electric apparatus and appliances · Electric toys
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