As may be noted, in particular from FIG 8, {HEAD ~ the means} 40 are in {TAIL ~ part} hidden via the plug 20 and in part received in the cavity 41 
are in
As may be noted , in particular from FIG 8 , { HEAD ~ the means } 40 are in { TAIL ~ part } hidden via the plug 20 and in part received in the cavity 41
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH