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