Device 1, wherein {HEAD ~ the positioning arm} comprises {TAIL ~ a suction cup} and a second cylinder which provides for an up and down movement of the suction cup 
comprises
Device 1 , wherein { HEAD ~ the positioning arm } comprises { TAIL ~ a suction cup } and a second cylinder which provides for an up and down movement of the suction cup
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH