The adjacent side edges of the belt shaped members in {HEAD ~ circumferential directions} of the forming drum are forced closer together to butt join {TAIL ~ the faces} of the side edges with each other 
The adjacent side edges of the belt shaped members in { HEAD ~ circumferential directions } of the forming drum are forced closer together to butt join { TAIL ~ the faces } of the side edges with each other
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH