In this case, the pushing lever 64 is supported by {HEAD ~ the first flange} 55 of {TAIL ~ the wedge lever} 51 as explained above 
of
In this case , the pushing lever 64 is supported by { HEAD ~ the first flange } 55 of { TAIL ~ the wedge lever } 51 as explained above
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH