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