r illustrated has 15 layers of iron in the mag- soft iron wire of which the core of the armature is formed. The wire, before winding, should be varnished net, each requiring about 26 inches of iron, approxi- ina.tely 33 feet altogether. with shellac and allowed to dry, and the surface of the and… … and 2 inches in length between the flanges. It is di- section, using the spool asa shuttle. vided at the center and fastened together by screws. The ring is mounted upon a wood Each part is tapered slightly to facilitate its removal support or hub, G, and is held in Fig. 6,-BRUSH- from the wire…
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