Referring to FIGS 15 and 16, {HEAD ~ sliding pane} 18 may be moved between its open and closed positions by {TAIL ~ drive assembly} 90 
moved by
Referring to FIGS 15 and 16 , { HEAD ~ sliding pane } 18 may be moved between its open and closed positions by { TAIL ~ drive assembly } 90
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH