Thus, {HEAD ~ the tape element} may be safely housed within {TAIL ~ the casing} 10, as illustrated in FIG 5A 
Thus , { HEAD ~ the tape element } may be safely housed within { TAIL ~ the casing } 10 , as illustrated in FIG 5A
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH