{HEAD ~ These tray locking members} 50 wedge against the flat side 51 of the extrusion 37 to secure the tray 15 in {TAIL ~ position} and prevent it from sliding from side to side 
{ HEAD ~ These tray locking members } 50 wedge against the flat side 51 of the extrusion 37 to secure the tray 15 in { TAIL ~ position } and prevent it from sliding from side to side
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH