Thus, when the lighting system is assembled in {HEAD ~ a showcase}, deck plate 122 and keeper 124 will assure {TAIL ~ the proper alignment} of down feed tube 106 with opening 118 in fixture 94 
Thus , when the lighting system is assembled in { HEAD ~ a showcase } , deck plate 122 and keeper 124 will assure { TAIL ~ the proper alignment } of down feed tube 106 with opening 118 in fixture 94
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH