inchhole is drilled transversely through it at or near thecenter to receive a short pin which enters a slot in theend of the wooden hub. This piece of wood is turned to fit the interior of. thearmature, and it is cut off about the same length asthe armature. The coils of the armature and thewooden…
Coal · Patents · Armature · Munn · Automobile · Candle power · Naval constructor · Scientific American · Sewing machine · Trade mark · Coal dust · American supplement · Trade marks · Horse power · Gas engine
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