The spring of the clutch 68 may then be manually retensioned by suitable means which extends to {HEAD ~ the exterior} of {TAIL ~ the apparatus} 10 
The spring of the clutch 68 may then be manually retensioned by suitable means which extends to { HEAD ~ the exterior } of { TAIL ~ the apparatus } 10
OTH OTH 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 OTH