{HEAD ~ The body} of {TAIL ~ lead} may be fixed relative to the outer jacket and the shaft has a portion of reduced diameter which moves through the lead 
of
{ HEAD ~ The body } of { TAIL ~ lead } may be fixed relative to the outer jacket and the shaft has a portion of reduced diameter which moves through the lead
HEAD HEAD HEAD HEAD HEAD HEAD REL 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