{HEAD ~ An article turnover assembly} for transporting {TAIL ~ flat envelopes} and the like while turning them over 180 degrees includes upper and lower crowned entrance and exit pulleys having two flexible endless belts extending between the lower entrance pulley and the upper exit pulley and the upper entrance pulley and the lower exit pulley 
{ HEAD ~ An article turnover assembly } for transporting { TAIL ~ flat envelopes } and the like while turning them over 180 degrees includes upper and lower crowned entrance and exit pulleys having two flexible endless belts extending between the lower entrance pulley and the upper exit pulley and the upper entrance pulley and the lower exit pulley
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