Note 2 — Chapter XVIII · ARMATURE WINDINGS

NOTE—The term back pitch means the number of spaces between the two inductors of a coil. For instance, in fig. 267, the pitch is 3; that is, there are three spaces between say inductors 1 and 4 which form part of the coil A—1—4—C. It is called the back pitch in distinction from the front or commutator pitch, which in this instance is 2.