As shown in FIG 2 b, the edge wrapped {TAIL ~ lines} 36 therefore have a rounded shape like {HEAD ~ a semi circle} 
As shown in FIG 2 b , the edge wrapped { TAIL ~ lines } 36 therefore have a rounded shape like { HEAD ~ a semi circle }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD