The platform 186 is a substantially flat member with {HEAD ~ the separator} 188 attached to {TAIL ~ its upper surface} 
attached to
The platform 186 is a substantially flat member with { HEAD ~ the separator } 188 attached to { TAIL ~ its upper surface }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL