Adjusting plate 5 is prevented from rotating by means of bosses on {HEAD ~ said adjusting plate} that protrude into {TAIL ~ antirotation} notches 19 
protrude into
Adjusting plate 5 is prevented from rotating by means of bosses on { HEAD ~ said adjusting plate } that protrude into { TAIL ~ antirotation } notches 19
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH