{HEAD ~ A change gear system} 3, wherein the rotating frame is attached to the stationary member by means of {TAIL ~ a one way engagement clutch} so that it is rotated only in one direction 
{ HEAD ~ A change gear system } 3 , wherein the rotating frame is attached to the stationary member by means of { TAIL ~ a one way engagement clutch } so that it is rotated only in one direction
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH