adapting the second roller to receive {TAIL ~ additive material} on its roll face from {HEAD ~ the roll face} of the first roller 
adapting the second roller to receive { TAIL ~ additive material } on its roll face from { HEAD ~ the roll face } of the first roller
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH