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    Positive containment threshold for use in glass manufacturing apparatus
    1.
    发明授权
    Positive containment threshold for use in glass manufacturing apparatus 失效
    用于玻璃制造设备的正容限值

    公开(公告)号：US3898069A

    公开(公告)日：1975-08-05

    申请号：US45544174

    申请日：1974-03-27

    Applicant: PPG INDUSTRIES INC

    Inventor： CERUTTI RICHARD L ,  GULOTTA JOSEPH A

    IPC: C03B18/02 ,  C03B5/26 ,  C03B18/04 ,  C03B19/02

    CPC classification number: C03B5/267 ,  C03B18/04

    Abstract: A positive containment threshold for use in an apparatus for manufacturing flat glass includes a metal base with a combination of vertically disposed members for connection to a bottom casing of a glass forming chamber. Disposed about a vertical member which serves as a dividing member in the combination are refractory threshold blocks which provide a smooth glass contact surface over which molten glass may be delivered onto a pool of molten metal contained within the bottom portion of an enclosed forming chamber. This threshold in combination with the casing surrounding the bottom portion of an enclosed forming chamber provides an impervious barrier to prevent the inadvertent loss of molten metal from the container in the event of refractory failure.

    Abstract translation: 在用于制造平板玻璃的设备中的积极的容纳阈值包括具有垂直设置的构件的组合的金属基底，用于连接到玻璃形成室的底部壳体。 围绕作为组合中的分隔构件的垂直构件设置难熔阈值块，其提供平滑的玻璃接触表面，熔融玻璃可以通过该玻璃接触表面被输送到包含在封闭成形室的底部内的熔融金属池上。 这个阈值与围绕封闭成形室的底部的外壳组合提供了一种不透水的屏障，以防止在耐火材料失效的情况下熔融金属从容器中的意外损失。

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