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"...in which is shown as electromagnet mounted with its poles in proximity to those of a steel magnet, and connected with a driving-wheel and belt, by which it can be given a rapid rotary motion, so that its poles alternately rotate past those of the steel magnet, producing an alternate reversal of polarity in its core by which an alternating current is generated in its coils." -Atkinson 1903

Dynamo

"...in which is shown as electromagnet mounted with its poles in proximity to those of a steel magnet,…

"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

Four-Plate Machine

"Machines of this kind may be constructed with as many pairs of plaes, combs, and brushes as can be…

Apparatus used to generate hydrogen.

Hydrogen Generator

Apparatus used to generate hydrogen.

"Machine used to generate electricity by induction using transformed kinetic energy from the crank." -Avery 1895

Induction Machine

"Machine used to generate electricity by induction using transformed kinetic energy from the crank."…

"When large quantities of electrical fluid are wanted for experiment, or for other purposes, it is procured by an electrical machine." -Comstock 1850

Plate Electrical Machine

"When large quantities of electrical fluid are wanted for experiment, or for other purposes, it is procured…

"Sonometer used when studying waves." -Avery 1895

Sonometer

"Sonometer used when studying waves." -Avery 1895

"The Wimhurst machine is used to generate small amounts of static electricity which are then stored in attached Leyden jars." -Avery 1895

Wimhurst Machine

"The Wimhurst machine is used to generate small amounts of static electricity which are then stored…

"The tin-foil strips or carriers on the rear plate of a Wimhurst machine are represented by the outer row of strips; those on the fornt plate, by the inner row. The diagonal conductor that faces the rear plate is represented by cs; the one that faces the front plate, by ab." -Avery 1895

Design of the Wimhurst Machine

"The tin-foil strips or carriers on the rear plate of a Wimhurst machine are represented by the outer…