A pin 56 projects upwardly from {HEAD ~ platform} 14 to extend through {TAIL ~ an opening} in the bottom panel of housing 16 
to extend through
A pin 56 projects upwardly from { HEAD ~ platform } 14 to extend through { TAIL ~ an opening } in the bottom panel of housing 16
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH