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Commutator   Listen
noun
Commutator  n.  (Elec.) A piece of apparatus used for reversing the direction of an electrical current; an attachment to certain electrical machines, by means of which alternating currents are made to be continuous or to have the same direction. It may be attached to the end of the spindle of an electric motor, where a brush is in contact sequentially with the parts of the spindle that conduct current to the different windings of the motor.






Collaborative International Dictionary of English 0.48








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"Commutator" Quotes from Famous Books



... Commutator for Incandescent Lamps.—An apparatus for lighting automatically a new lamp to replace one that has failed. ...
— Scientific American Supplement, No. 595, May 28, 1887 • Various

... possibility of a magnetic engine for the production of power and succeeded in making a reciprocating-bar motor, on which he installed the first automatic pole changer, or commutator, ever used with an electric battery. He did not succeed in producing direct rotary motion. His bar oscillated like the walking ...
— The Age of Invention - A Chronicle of Mechanical Conquest, Book, 37 in The - Chronicles of America Series • Holland Thompson

... a, then through the end washer, and back similarly a quarter turn, e, then led along the diametrically opposite groove, and lastly a little over a quarter turn, f, back to g, where it is coupled to the next convolution. The commutator is formed of rings of sections. Each section is formed of short lengths. Each length is dovetailed and interlocked between conical steel rings. The whole is insulated with asbestos, and, when screwed up by the end ...
— Scientific American Supplement, No. 633, February 18, 1888 • Various

... carefully inspecting the entire equipment before departing on each trip, and know that there are no wires with insulation charred or worn off, that all screws and connections are tight, commutator clean and brushes set in brush holder in proper manner. Carbon in lamp of sufficient length to complete trip, and that the carbon will feed through the clutch freely and rests central over the copper electrode. Copper electrode cleaned off, oil in both bearings and see that steam does not ...
— The Traveling Engineers' Association - To Improve The Locomotive Engine Service of American Railroads • Anonymous

... gentleman not to crank—and so he cranked and cranked and still nothing happened. I chased a whole row of things one after another—battery, buzzer, oil or gasoline in the cylinders, defective insulation, commutator, water in the carburettor, choked feed-pipe,—and all it did was to cough in a ...
— The Motormaniacs • Lloyd Osbourne



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