As can be seen in FIGS 1 and 2, close to {HEAD ~ the upper portion} of {TAIL ~ the pivot} 19 is a cylindrical section 25 off centre with respect to the axis of rotation of the pivot 
of
As can be seen in FIGS 1 and 2 , close to { HEAD ~ the upper portion } of { TAIL ~ the pivot } 19 is a cylindrical section 25 off centre with respect to the axis of rotation of the pivot
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH