split ring

The commutator is a split ring, having as many parts or segments as there are coils upon the armature.

Attach the cord used for lowering the bottle into the water to the split ring on the rubber suspender.

It is a birthday treat to them already to take the key from my split-ring, and look together over the half-forgotten things.

It was locked, but the key was on her own split-ring, where he had put it for her the day he returned from London.