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