Hawkins electrical guide. Questions, answers & illustrations; a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833- · New York, T. Audel · leaf 241
ere so man 7 rence of pressure between lave1.515 wh> - .jce by wedges driven into dovetail grooves. methods of placings made •ssary in fig. CONSTRUCTION OF ALTERNATORS 1,229 Linen tape of good quality, treated with linseed oil, forms a desirablecovering. Where extra high insulation is required… … \ INSULATION ROUND EDGES
Electrical engineering
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