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 1083
he armature the wire is laid on in a con-tinuous spiral as shown. This makes the electro-motiveforce in each half of the armature in series, and allows thecurrent to flow from one coil to another, except at thepoints where the N-half and S-half of the armature meet.Here the electro-motive forces… … Fig. 443 eight coil gramme ring winding, with eight part commutator draw it in at the bottom as shown by the arrows on thesewires. This will cause a current to flow in the externalcircuit. If the junctions of the coils are connected to eight com-mutator bars, (one bar per coil), and connect the…
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