{TAIL ~ Tray legs} 25 extend a distance sufficient to prevent clamping assembly 40 from coming in {HEAD ~ contact} with the arbitrary horizontal surface 45 
{ TAIL ~ Tray legs } 25 extend a distance sufficient to prevent clamping assembly 40 from coming in { HEAD ~ contact } with the arbitrary horizontal surface 45
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH