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 173
frame,composed of the basepiece, the uprights or sidemembers and the cross bar. These may be madeof any wood and finished to suit the builder. Theuprights are secured to the base by wood screwsand to the cross bar by wedges passing throughthat member, the ends of which fit suitable holesin the… … PLUNGE BATTERY. 173 or motor boat will have old batteries on handthat he will be glad to dispose of, and all garagesor auto repair shops will have old cells that canbe had for the asking. These are cut open andthe carbons removed. As the carbons have aterminal screw at the top there is little left…
Electric apparatus and appliances · Electric toys
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