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