[Bubier], Edward Trevert, 1858- [from old catalog] · Lynn, Mass., Bubier pub. co. · leaf 77
erial of the same thickness as the porcelain.One of these reinforcements is grooved, and theother tongued. The coil, consisting thus of core,ribbon, and reinforcements, has an angular width of60 degrees. The upper part of each face of eachcoil is covered with an insulating plate, 5-16 ofan inch… … 75 ARMATURE OF THE BRUSH ALTERNATING CURRENT DYNAMO. 76 ELECTRICITY AND ITS the copper ribbon connects with a binding post asshown. The six armature coils thus mounted are carriedin a German silver frame consisting of two semi-circles bolted together on the line of the verticaldiameter. The…
Electricity
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