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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 136

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 136
illed in the cen-ter of the armature. The shaft should be about 2 inches long and care-fully pointed at each end. The armature can be forced onto the shaft and bal-anced to run steadily. If one end of the armature bar is found to beheavier than the other when the shaft is supported onits pivots,… … 136 ELECTRIC TOY MAKING. The shorter bearing is screwed to the magnet sup-port, and the longer one to the base. These bearings should be of sufficient stiffness tohold the shaft steadily, and not spring enough to al-low the armature shaft to get loose in running. A conical indentation is made with…

Electric apparatus and appliances · Electric toys

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