. Electric railway gazette . ed have lost their enterprise andpublic sympathy, they will have no energy but to pursuethe real and legal methods of redress which are open tothem. A stampede for places begins and the strike isbroken. Successful strikes are those in which the min-imum of violence is employed. 452 ELECTRIC RAILWAY GAZETTE. Vol. XIII. No. 25. Some New Types of Formers for Armature Coils. The accepted method for winding all drum armaturesfor railway purposes is to form a coil out of wire, insulateit separately and lay the finished coil upon the order to separate the coil
. Electric railway gazette . ed have lost their enterprise andpublic sympathy, they will have no energy but to pursuethe real and legal methods of redress which are open tothem. A stampede for places begins and the strike isbroken. Successful strikes are those in which the min-imum of violence is employed. 452 ELECTRIC RAILWAY GAZETTE. Vol. XIII. No. 25. Some New Types of Formers for Armature Coils. The accepted method for winding all drum armaturesfor railway purposes is to form a coil out of wire, insulateit separately and lay the finished coil upon the order to separate the coils accurately and rapidly one ormore forming devices are necessary. The object of thisarticle is to describe a few simple forms that the writerhas found very useful. One of the most familiar shapesis the well-known Eickemeyer coil, shown in Fig. i. It isby no means an easy coil to form if it is to fit nicely. Theform of such coils is frequently laid out by a rule-of-thumbmethod that makes the actual work very tedious and only. Electric Railway Ga:ctt> FIG. I.—EICKEMEYER COIL. partially successful. There is no reason why formersproperly designed should not at once shape the coil sothat it will readily and symmetrically pack in place. TheEickemeyer coil, as will be noticed, has two spiral con-nectors lying in different planes. It is not feasible to formthe coil in one complete motion when it is made of stiffwire; coils made of soft, flexible wire are very simple asthey may be wound upon a properly shaped wooden block,but the stiff wire coils are more difficult, and the appara-tus herein described is intended to facilitate the formationof such coils. If the armature be of the toothed type, as is frequentlythe case in railway work, there need be but one wire to acoil. If, however, it be of the smooth-core type, theremust be two wires at least to every coil. This is so forseveral reasons : First, because when the surface of the
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