Leeds, Charles Carley, 1870- (from old catalog) · New York, D. Van Nostrand company · leaf 108
he commutator bars tightlytogether in the form of a cylinder, the outer surface of which comesin contact with the carbons. For machines of low s))eed, these end rings are usually made ofcast iron, the rear ring being a part of the armature spider, but it ismuch safer to use wrought iron or steel… … Sections of tvlica Insulation Rings.Moulds ££916 S 28917 CLASS Industrial tkaoe MachinistNAME John Y/.Roberts date. Jan. 20-09. THE CARNEGIE TECHNICAL SCHOOLS PITTSBURGH, PA.SCHOOU OF APPRENTICE.S AND JOURNEYMENMECHANICAL ORAVtINC Rear Comi^utator Ring SCALE ^ S Full Size owe. no.C-I04 J LESSON No.…
Mechanical drawing
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