After the taking up of {TAIL ~ a sheet} of glass by the upper form, a current of hot gas is blown under the glass sheets in {HEAD ~ order} to produce a pneumatic pressing 
After the taking up of { TAIL ~ a sheet } of glass by the upper form , a current of hot gas is blown under the glass sheets in { HEAD ~ order } to produce a pneumatic pressing
OTH OTH OTH OTH OTH 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 HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH