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Stanley Model D electric meter, 1898

Stanley Model D electric meter, 1898

Item 74516 zoom send e-card Share this on Facebook Share this on Twitter

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William Stanley, who started a company in Great Barrington, Massachusetts, developed this meter that was attempted to eliminate friction caused by the jewel bearings. The hollow steel shaft is mounted between two magnets, which are adjusted so that the disk "floats" between the magnets.

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