Rewinding Small Motors describes the technique of rewinding various types of motors, such as split phase, capacitor-start, repulsion, repulsion-induction, repulsion-start, shaded pole, three-phase induction, universal, and d.c. The book describes in detail the rewinding process. The technician should start by determining the following: (1) coil connection; (2) number of turns per coil; (3) number of coils per pole; (4) the gauge of the wire; and (5) the space occupied by the winding. The book notes the importance of the varieties of wind and the various techniques adopted to obtain the optimum wind for any particular type of armature. Varnishing and finishing forms part of the whole operation; this adds insulation between turns, secures the whole winding against the action of centrifugal force, and also seals the part from moisture or dust. A motor-driven winding machine should have speed control, a lead-screw reverser, and a wire guide. The book points out that a coil cannot be wound anyhow as the coil voltage governs the technique of winding that is to be used. The book is suitable for fitters, engineers, apprentices, technicians, and students of mechanical or electrical engineering.

Excerpt from The Electrical Driving of Winding Engines and Rolling Mills To slow up the winder and bring it to a standstill. The control lever is brought back toward the mid position. Thereby reducing the field current of the generator. And reducing its voltage below the voltage of the winding motor, So that the current between the motor and the generator reverses and the winding motor gives back power to the generator. Thus producing a strong electric braking effect. The tnore rapidly the lever is moved backwards towards the tuid position the stronger the electric' braking effect will be. The kinetic energy of the moving parts of the w'inder is converted to electrical energy and returned to the system. The lever ntay be brought toward the mid position to produce this electric braking effect. Either by hand or automatically by the cams. As mentioned above. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.