{TAIL ~ Such an unstable sheath} in a working width of any length is then pulled onto a stable screen drum 11 to which a coarse screen fabric 12 has already been applied to provide a space between wall 5 and {HEAD ~ screen drum} 11 
{ TAIL ~ Such an unstable sheath } in a working width of any length is then pulled onto a stable screen drum 11 to which a coarse screen fabric 12 has already been applied to provide a space between wall 5 and { HEAD ~ screen drum } 11
TAIL TAIL 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH