The air jet devices A are illustrated in FIG 2 and include {TAIL ~ a sleeve} 26 being internally threaded for {HEAD ~ reception} upon the line 24a as illustrated, or the line 25a and the like 
The air jet devices A are illustrated in FIG 2 and include { TAIL ~ a sleeve } 26 being internally threaded for { HEAD ~ reception } upon the line 24a as illustrated , or the line 25a and the like
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH