A press comprises two cooperating endless belts {TAIL ~ each} trained over {HEAD ~ a support and tensioning roller} 
A press comprises two cooperating endless belts { TAIL ~ each } trained over { HEAD ~ a support and tensioning roller }
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD