{TAIL ~ This relative rotational movement} of crank handle 7 in relation to crank arms 6 is converted into {HEAD ~ backward and forward radial movement} of crank arm 6, which causes the extremity of arm 6 that is connected to the rear section of blade 2 to follow an elliptical orbital path around turbine axle 4 
{ TAIL ~ This relative rotational movement } of crank handle 7 in relation to crank arms 6 is converted into { HEAD ~ backward and forward radial movement } of crank arm 6 , which causes the extremity of arm 6 that is connected to the rear section of blade 2 to follow an elliptical orbital path around turbine axle 4
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD 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