at least two air jet devices for receiving a plurality of yarns from said creel and uniting said {HEAD ~ yarns} into {TAIL ~ a single yarn} 
into
at least two air jet devices for receiving a plurality of yarns from said creel and uniting said { HEAD ~ yarns } into { TAIL ~ a single yarn }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL