{HEAD ~ The carriage} will move relative to {TAIL ~ a scale} provided on the frame, such movement being commensurate with the amount of deflection of the elongated flexible member caused by the known spring force 
move relative to
{ HEAD ~ The carriage } will move relative to { TAIL ~ a scale } provided on the frame , such movement being commensurate with the amount of deflection of the elongated flexible member caused by the known spring force
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH