Rearward adjustment plate segment 10 is joined along a forward edge to the rearward edge of {HEAD ~ forward adjustment plate segment} 12, forming {TAIL ~ a substantially right angle} 
forming
Rearward adjustment plate segment 10 is joined along a forward edge to the rearward edge of { HEAD ~ forward adjustment plate segment } 12 , forming { TAIL ~ a substantially right angle }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL