Guide member 30 is more clearly illustrated in {HEAD ~ engagement} of the side wall 32 of the base member 23, which relationship maintains {TAIL ~ the parallel sliding function} of the slotted member 23 
Guide member 30 is more clearly illustrated in { HEAD ~ engagement } of the side wall 32 of the base member 23 , which relationship maintains { TAIL ~ the parallel sliding function } of the slotted member 23
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH