The forked end 51a of fork 51 is normally located between a pair of {HEAD ~ plates} 56, 57 mounted to {TAIL ~ the front section} 11b of the fixed frame 11 
mounted to
The forked end 51a of fork 51 is normally located between a pair of { HEAD ~ plates } 56 , 57 mounted to { TAIL ~ the front section } 11b of the fixed frame 11
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH