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