Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise on the care and management of steam engines, boilers and electric machinery (1922)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 1083
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 K-half and S-half of the armature meet.Here the electro-motive forces… … Fig. 443eight coil gramme ring winding, with eight partcommutator • 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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