The mounting means B carries a pipe coupling illustrated as a T member 20 receiving compressed air through {HEAD ~ a line} 21 through {TAIL ~ a solenoid valve} 22 from a suitable supply of compressed air designated at 23 
The mounting means B carries a pipe coupling illustrated as a T member 20 receiving compressed air through { HEAD ~ a line } 21 through { TAIL ~ a solenoid valve } 22 from a suitable supply of compressed air designated at 23
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH