Peripheral commutator for discoidal armature

摘要

A disc-shaped armature consists essentially of a flat, circular array of overlapping coils bonded together by means of a resinous material to provide a rigid discoidal structure having a disc portion containing the coil sides and inner and outer concentric ring portions containing the coil end-heads. According to the invention the discoidal structure is provided with at least one commutator on the outer ring portion of the structure.