When the oscillating member pivots in {TAIL ~ one direction}, it engages the ends of the sprag levers to turn the intermediate member When the oscillating member moves in the other direction, {HEAD ~ the clutch teeth} simply ratchet over the ends of the sprag levers 
When the oscillating member pivots in { TAIL ~ one direction } , it engages the ends of the sprag levers to turn the intermediate member When the oscillating member moves in the other direction , { HEAD ~ the clutch teeth } simply ratchet over the ends of the sprag levers
OTH OTH OTH OTH OTH OTH 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 HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH