In intermediate positions {HEAD ~ the guide vane} deflects {TAIL ~ the in flowing stream} of water toward the frusto conical wall so that the water, when the pressure head exceeds a certain valve, is caused to rotate about the axis of the housing to produce the desired brake effect 
deflects
In intermediate positions { HEAD ~ the guide vane } deflects { TAIL ~ the in flowing stream } of water toward the frusto conical wall so that the water , when the pressure head exceeds a certain valve , is caused to rotate about the axis of the housing to produce the desired brake effect
OTH OTH OTH 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH