Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 300
nstruction employed by the Westinghouse Company acentral spider of cast iron is surrounded by a ring oflaminated soft steel plates. These plates are punchedinto sections 2 or 3 feet long, which include two polepieces. The sections have projections upon their innersides which fit accurately in… … stationary armature for 750 k. w. alternator. 288 Scott: fj. F. I.. number of bolts running through from end to end. Thefriction between the surfaces of the thin plates as well asthe bolts through the holes gives a most substantial con-struction ; the field is, in fact, a steel rimmed fly-wheel.The…
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