Easy electrical experiments and how to make them; (1918)
Dickinson, Leonard Perley, 1874- [from old catalog] · Chicago, F. J. Drake & co · leaf 35
o a section of the commutator. Between the commutatorand the coils these wires should lie close against the shaft, butseparated from it by the layer of paper just mentioned, andseparated from each other. They should be tightly bound tothe shaft by close wrappings of fine silk thread. The… … EASY ELECTRICAL EXPERIMENTS. 27 least % inch clearance between their poles. The shaft just de-scribed has to revolve in the space between the poles, and thiswill be a difficult matter to arrange if the magnet poles arecloser together than % inch. Indeed, it may be necessary to filethe shaft a…
Electric apparatus and appliances · Electricity
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