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Practical plating and polishing (1897)

Zucker & Levett & Loeb co., New York, [from old catalog] comp · New York, Zucker & Levett & Loeb co · leaf 20

An illustration from Practical plating and polishing, 1897, leaf 20
the current. The two windings of the armatureconnecting with each commutator are carefully insulatedfrom each other, and in case of an accident to one of thewindings, the machine could be run on something like atwo-thirds load on the remaining winding until repairscould be effected. When requested,… … Fig 5. Two Views of the Multipolar American Giant Dynamos. 20 different intensities are used, the windings may beconnected in series, as by this arrangement the currentcan be taken from the dynamo at two different voltagesby simply connecting the leads to the terminals of one orboth of the…

Electroplating · Grinding and polishing · Bicycles and tricycles

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