{HEAD ~ cam slots} in {TAIL ~ each} of said cam surfaces disposed adjacent said second end of said tilt brackets 
in
{ HEAD ~ cam slots } in { TAIL ~ each } of said cam surfaces disposed adjacent said second end of said tilt brackets
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH