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