commutator bar

However, we needed only a little for the commutator bars.

Moore has promised us a bakelite for insulating the commutator bars.

Rice himself was cutting out commutator bars.

He suggested the cutting out of the mica pieces almost to the bottom, leaving the commutator bars separated by air-spaces.

A centrifugal mechanism, when close to running speed, connected all commutator bars together to create the equivalent of a squirrel-cage rotor.

The winding requires twice the number of turns and twice the number of commutator bars as an equivalent drum-wound armature.

They started as repulsion motors, but once they were running at a sizable fraction of full speed, the brushes were lifted mechanically and all commutator bars were short-circuited together to create the equivalent of a squirrel-cage induction motor.