The yarn passes through {HEAD ~ respective eyes} 15, 16, 17 and 18 carried in {TAIL ~ an upright yarn guide} 19 
carried in
The yarn passes through { HEAD ~ respective eyes } 15 , 16 , 17 and 18 carried in { TAIL ~ an upright yarn guide } 19
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH