Assertion: motor's armature | /r/HasProperty | free to move
Facets:
value: by placing the poles
type: MANNER
Source sentences:
text: The complexity of this system was that the armature must now be free to move up and down relative to the field, as the suspension moves.
text: By placing the poles at the side of the armature and giving them flat vertical faces, the armature was free to move up and down between them.