Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise .. (1916)
Swingle, Calvin F. (Calvin Franklin), b. 1846 · Chicago, F.J. Drake & company · leaf 1250
windinga coil in this manner it is of course necessary to know ex-actly what length it must be, and a pattern coil must there-fore first of all be prepared, from which the spacing of thepins can be taken, so that the completed coil will fit intothe slots for which it is intended. 868. How are such… … Fig. 542 may be no wrong connection when the wires are finallyconnected to the commutator. Before placing the coils the slots must of course be in-sulated as explained previously. We now continue to layin coils until the whole armature is full, but when nearlyfull, the forward ends of the coils we…
