The upper end of the link 13a is hinged to a bolt 14, which can be adjusted relative to {TAIL ~ the upper plate} 8 and can be fixed in every adjusted position by {HEAD ~ a nut} 15 
The upper end of the link 13a is hinged to a bolt 14 , which can be adjusted relative to { TAIL ~ the upper plate } 8 and can be fixed in every adjusted position by { HEAD ~ a nut } 15
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH