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