{TAIL ~ An improved two tier, single felted dryer section} has an upper tier of spaced apart dryer drums and a lower tier of {HEAD ~ spaced apart dryer drums} 
{ TAIL ~ An improved two tier , single felted dryer section } has an upper tier of spaced apart dryer drums and a lower tier of { HEAD ~ spaced apart dryer drums }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD