{HEAD ~ Clamps} 22 are mounted in slots 14 by {TAIL ~ screws} 23 having heads 24 
are mounted by
{ HEAD ~ Clamps } 22 are mounted in slots 14 by { TAIL ~ screws } 23 having heads 24
HEAD HEAD HEAD HEAD HEAD OTH REL REL OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH