a rod having {HEAD ~ one end} loosely connected with {TAIL ~ said flange} and movable therein, 
a rod having { HEAD ~ one end } loosely connected with { TAIL ~ said flange } and movable therein ,
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH