[Bubier], Edward Trevert, 1858- [from old catalog] · Lynn, Mass., Bubier pub. co. · leaf 57
EDISON DIRECT CURRENT DYNAMO. layers of wire being placed between each two strips.This arrangement is to give a more perfect con-nection, and to prevent sparking by furnishing RECENT APPLICATIONS. 55 numerous points of contact, the copper stripsconfining the wire and making the brush morecompact.… … THE WOOD ARC DYNAMO. The Wood Arc Dynamo.—The engraving onthis page gives a very good idea of the size andgeneral appearance of the new improved Wood ArcDynamo. The armature is of the Gramme type, and ismade in the form of a ring of soft iron wire. Itis then closely covered with coils of carefully…
Electricity
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