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