Four-Plate Machine

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“Machines of this kind may be constructed with as many pairs of plaes, combs, and brushes as can be conveniently combined together; four-plate machines being common, in which the relative positions of each pair of plates are reversed, as shown...” -Atkinson 1903


Atkinson, Philip Electricity for Everybody; Its Nature and Uses Explained (: The Century Company, 1903) 34


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