The carriage is mounted on the frame and defines one of {HEAD ~ the engagement points} by which {TAIL ~ the tensiometer} is coupled to the flexible member 
The carriage is mounted on the frame and defines one of { HEAD ~ the engagement points } by which { TAIL ~ the tensiometer } is coupled to the flexible member
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH