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    Apparatus for stretching and smoothing a natural tobacco leaf
    1.
    发明授权
    Apparatus for stretching and smoothing a natural tobacco leaf 失效
    用于拉伸和吸收天然烟草叶的装置

    公开(公告)号：US3759269A

    公开(公告)日：1973-09-18

    申请号：US3759269D

    申请日：1970-12-11

    申请人： ARENCO AB

    发明人： WALLENBORN N

    IPC分类号： A24B5/04 ,  A24B5/14

    CPC分类号： A24B5/04 ,  A24B5/14

    摘要： An apparatus for stretching and smoothing tobacco leaves comprising an intermittently advanced, air-permeable, stretchable conveyor belt for carrying leaves from a receiving station to a smoothing station to a stretching station. A moist leaf placed and aligned on the belt at the receiving station, and held thereon by suction through the belt, is advanced to the smoothing station where it is clamped by its central vein and subjected to diverging air currents that flutter the edges of the leaf outwardly. Suction is then reapplied to hold the leaf and it is advanced to the stretching station where the belt is transversely stretched to thereby stretch the leaf as well.