The support shaft 50 defines an elongate slot 52 longitudinally therealong for engaging {HEAD ~ the end} of {TAIL ~ a spring}, as to be described below 
of
The support shaft 50 defines an elongate slot 52 longitudinally therealong for engaging { HEAD ~ the end } of { TAIL ~ a spring } , as to be described below
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 OTH OTH OTH OTH OTH