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