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