VORRICHTUNG ZUM BILDEN VON SCHLAUFEN IN FUER DIE HERSTELLUNG VON SAECKEN BESTIMMTEN SCHLAUCHABSCHNITTEN ZUM AUSGLEICH UNTERSCHIEDLICHER ABSCHNITTLAENGEN

摘要

Sections of bag-making material are successively and intermittently fed by double belt conveyors to arrive beneath a vertically reciprocatable push member which engages each section by suction and forms a central loop in each section while its ends are yieldingly engaged by brake shoes co-operating with side supports.