{HEAD ~ An air blast} from nozzle 52 passes through the stretched fabric to impinge upon the surface of {TAIL ~ the underlying sheet} to hold it in place as the gripped top sheet is removed 
{ HEAD ~ An air blast } from nozzle 52 passes through the stretched fabric to impinge upon the surface of { TAIL ~ the underlying sheet } to hold it in place as the gripped top sheet is removed
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH 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 OTH