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