{HEAD ~ A gripping element} 91 is supported by the underside 74b of {TAIL ~ gear} 74 
{ HEAD ~ A gripping element } 91 is supported by the underside 74b of { TAIL ~ gear } 74
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH