The lower roll has {HEAD ~ an applicator chamber} of a nozzle applicator in {TAIL ~ the region} of its periphery remote from the upper roll 
in
The lower roll has { HEAD ~ an applicator chamber } of a nozzle applicator in { TAIL ~ the region } of its periphery remote from the upper roll
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH