A stub shaft 53 extends through {HEAD ~ the flanges} 51 and 52 to form {TAIL ~ a hinged connection} between the frame 20 and the plate 48,  
to form
A stub shaft 53 extends through { HEAD ~ the flanges } 51 and 52 to form { TAIL ~ a hinged connection } between the frame 20 and the plate 48 ,
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH