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