means for moving said carriage in the machine direction in response to {HEAD ~ movement} of {TAIL ~ said strip}, 
of
means for moving said carriage in the machine direction in response to { HEAD ~ movement } of { TAIL ~ said strip } ,
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH