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    Sealing device for openings in buildings
    1.
    发明授权
    Sealing device for openings in buildings 失效
    密封装置在建筑物的开放

    公开(公告)号：US3683572A

    公开(公告)日：1972-08-15

    申请号：US3683572D

    申请日：1970-04-28

    申请人： ALTEN K

    发明人： ALTEN KURT

    IPC分类号： B65G69/00 ,  E06B7/23

    CPC分类号： B65G69/008

    摘要： A sealing arrangement for openings in buildings for sealing the gap between the wall portions defining said opening and an object in or in front of said opening, which includes a plurality of substantially parallel flexible elastic strips located in at least one plane substantially parallel to the plane defined by said opening and adapted to yield and sealingly engage an object moved into or toward said opening.

    摘要翻译： 一种用于建筑物中的开口的密封装置，用于密封限定所述开口的壁部分与所述开口中或之前的物体之间的间隙，所述物体包括多个基本平行的柔性弹性条带，所述多个基本平行的柔性弹性条带位于基本平行于所述平面 由所述开口限定并适于产生并密封地接合移入或朝向所述开口的物体。

    Bridge for ramps
    3.
    发明授权
    Bridge for ramps 失效
    桥梁斜坡

    公开(公告)号：US3883917A

    公开(公告)日：1975-05-20

    申请号：US41639173

    申请日：1973-11-16

    申请人： ALTEN K

    发明人： ALTEN KURT

    IPC分类号： E01D15/00 ,  B65G69/28 ,  B65G11/00

    CPC分类号： B65G69/2835

    摘要： A ramp having a bridge structure pivotally connected thereto for transferring a load onto and from the ramp and including a bridge plate having one end hinged to the ramp for selectively pivoting the bridge plate from a substantially vertical or rest position to an at least approximately horizontal or use position while tension spring means have one end connected to the ramp and the other end to the free end of a lever which is pivotable about an axis substantially parallel to the pivot axis of the bridge plate but is spaced from this last mentioned pivot axis. The free end of the lever carries a roller which engages and is adapted to roll on a cam surface of a cam connected to the bridge plate. The tension spring means varies its length when the roller moves on the cam surface during the pivoting of the bridge plate from its rest position to its use position and is shortest in its rest position.

    摘要翻译： 具有枢转地连接到其上的桥结构用于将负载传递到斜坡上并且来自斜坡的包括桥板的斜面，该桥板具有铰接到斜面的一端，用于选择性地将桥板从基本垂直或静止位置枢转到至少近似水平或 使用位置，同时拉伸弹簧装置的一端连接到斜坡，而另一端连接到杠杆的自由端，杠杆可绕基本上平行于桥板的枢转轴线的轴线枢转，但与最后提到的枢转轴线间隔开。 杠杆的自由端带有一个接合并适于在连接到桥板的凸轮的凸轮表面上滚动的辊。 当在桥板从其静止位置枢转到其使用位置时，当辊在凸轮表面上移动时，拉伸弹簧装置改变其长度，并且在其静止位置处最短。