A device 1, wherein {HEAD ~ the first mentioned orifice} which is connectable to {TAIL ~ atmosphere} is larger than the second mentioned orifice which is connectable to atmosphere 
A device 1 , wherein { HEAD ~ the first mentioned orifice } which is connectable to { TAIL ~ atmosphere } is larger than the second mentioned orifice which is connectable to atmosphere
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH