The invention would also be suitable for use in dryer drum groups that have two lower tier drums, one upper tier drum, and {TAIL ~ two reversing rolls} positioned around {HEAD ~ the upper tier drum} 
The invention would also be suitable for use in dryer drum groups that have two lower tier drums , one upper tier drum , and { TAIL ~ two reversing rolls } positioned around { HEAD ~ the upper tier drum }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD