Contracting garter springs 28 engage the footed portions 18 of the sprags 16 and urge {HEAD ~ the cams} into {TAIL ~ race engaging positions} 
Contracting garter springs 28 engage the footed portions 18 of the sprags 16 and urge { HEAD ~ the cams } into { TAIL ~ race engaging positions }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL