When {HEAD ~ the articles} remaining on {TAIL ~ the rim} are swept off of this rim, the pucks can then be detached and conveyed away from the centrifugal feeder 
When { HEAD ~ the articles } remaining on { TAIL ~ the rim } are swept off of this rim , the pucks can then be detached and conveyed away from the centrifugal feeder
OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH