Method of and means for forming multi-ply paper webs from a single
headbox
    31.
    发明授权
    Method of and means for forming multi-ply paper webs from a single headbox 失效
    从单个流浆箱形成多层纸幅的方法和装置

    公开(公告)号:US4141788A

    公开(公告)日:1979-02-27

    申请号:US902116

    申请日:1978-05-02

    Inventor: Edgar J. Justus

    CPC classification number: D21F1/02 D21F1/028 D21F9/006

    Abstract: Multi-ply web forming stock jets directed through a slice from a single headbox into a forming zone between converging forming surfaces in a papermaking machine are maintained separated for a sufficient interval after leaving the slice opening to permit drainage and partial ply formation of the stock delivered by one of the stock jets to one of the forming surfaces before the stock in a second of the stock jets joins in fiber felting laminar relation with the contiguous surface of the partially formed ply. Flexible divider sheet members divide the slice chamber of a headbox into separate flow passages aligned respectively with different ones of headbox subchambers to receive streams of the stock from the respective subchambers and maintain the streams separated, and the flexible members extend a substantial distance out of the slice opening in the direction of flow of the stock jets to maintain stock jets separated for a sufficient interval after leaving the slice opening.

    Abstract translation: 通过切片从单个流浆箱引导到造纸机中的收敛成形表面之间的成形区域的多层网状成形股料流在离开切片开口之后保持分开足够的间隔,以允许排出和部分层层形成所递送的原料 通过其中一个股票喷射到一个成形表面之前,在第二个股票射流中的股票与部分形成的层的连续表面以纤维毡化层状关系连接。 柔性分隔板构件将流浆箱的切片室分成分别与不同的流浆箱子室对齐的流动通道,以从相应的副室接收原料的流并且保持流分离,并且柔性构件从 在股票射流的流动方向上切片打开以保持股票射流在离开切片开口之后分开足够的间隔。

    System compensating for pressure fluctuations in a paper machine headbox
    32.
    发明授权
    System compensating for pressure fluctuations in a paper machine headbox 失效
    系统补偿造纸机流浆箱中的压力波动

    公开(公告)号:US4030971A

    公开(公告)日:1977-06-21

    申请号:US626824

    申请日:1975-10-29

    Inventor: Edgar J. Justus

    CPC classification number: D21F1/06

    Abstract: A method and mechanism for compensating for pressure fluctuations in a paper machine stock flow system for conducting stock from a supply pump to a slice opening including providing a flexible diaphragm as one wall of the stock conduit with the diaphragm dampening pressure variations and being supported on its opposite side by air in an air chamber divided into compartments with a support compartment immediately opposite the diaphragm and a supply compartment behind the support compartment and the compartments divided by an attenuator wall. Air is supplied continuously at a reference pressure to the supply compartment, and a relief valve is positioned in the support compartment with the port opened or closed by movement of the diaphragm so that air is bled from the support compartment as the diaphragm moves toward the stock conduit with a drop of pressure therein. In another form, the structure includes a diaphragm wall between a distribution chamber of a headbox and an air chamber with a valve controlling the release of pressure from the air chamber and controlled by the position of the diaphragm.

    Abstract translation: 一种用于补偿造纸机械原料流系统中的压力波动的方法和机构,用于将料液从供给泵传送到切片开口,包括提供柔性隔膜作为储存管道的一个壁,其具有膜片阻尼压力变化并被支撑在其上 在空气室中的空气相对侧分隔成具有紧邻隔膜的支撑隔室的隔室和在支撑隔室后面的供应隔室以及由衰减器壁分隔的隔室。 空气以参考压力连续供应到供应室,并且安全阀定位在支撑室中,其中端口通过隔膜的移动而打开或关闭,使得当隔膜向库存移动时空气从支撑隔间移出 导管内有一滴压力。 在另一种形式中,该结构包括在流浆箱的分配室和具有控制从空气室释放压力并由隔膜的位置控制的阀的气室之间的隔膜壁。

    Cable means for controlling internal tension in web rolls, and method
    33.
    发明授权
    Cable means for controlling internal tension in web rolls, and method 失效
    用于控制卷筒纸内部张力的电缆装置及方法

    公开(公告)号:US3990648A

    公开(公告)日:1976-11-09

    申请号:US631441

    申请日:1975-11-13

    Abstract: Cable means are provided for controlling internal tension in web rolls during winding thereof onto cores with the aid of winding drums. According to the method of utilizing cable means for this purpose, the web rolls are partially wound between the winding drums and a rider roll, the rider roll being backed off from the web rolls after they have attained partial diameter, and during continuation of the winding of the web rolls to full diameter the load-relieving lift is applied to the web rolls through their cores by the cable means.

    Abstract translation: 提供电缆装置,用于通过卷绕鼓将卷筒纸卷绕到芯上时控制卷筒纸的内部张力。 根据为此目的使用电缆装置的方法,卷筒辊部分地卷绕在卷绕滚筒和骑手辊之间,骑车辊在达到部分直径之后并且在连续卷绕期间从卷筒纸辊退出 的卷筒纸卷到全直径,通过电缆装置将卸载升降机施加到卷筒纸通过它们的芯。

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