{HEAD ~ A device} 9 wherein {TAIL ~ said radial inlet spout} has a curved side wall along which an outer edge of said guide vane moves upon rotation of said guide vane 
wherein
{ HEAD ~ A device } 9 wherein { TAIL ~ said radial inlet spout } has a curved side wall along which an outer edge of said guide vane moves upon rotation of said guide vane
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH