{HEAD ~ The rearward end} of {TAIL ~ the plug pin} 30 is held by a pin mounting 33, onto whose rear end 34 a helical spring 35 is pushed 
of
{ HEAD ~ The rearward end } of { TAIL ~ the plug pin } 30 is held by a pin mounting 33 , onto whose rear end 34 a helical spring 35 is pushed
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL 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