The two coils were now separated and placed at the sides of the motor, with their iron core as a sideways figure-8 circuit and the armature in a central pole gap.
2.
With a contemporary four-pole motor, this would vary the pole gap at the upper and lower poles, probably to the extent that the armature hit the pole pieces ( suspension travel being far larger than typical pole gaps ).
3.
With a contemporary four-pole motor, this would vary the pole gap at the upper and lower poles, probably to the extent that the armature hit the pole pieces ( suspension travel being far larger than typical pole gaps ).
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