Rotary sealing device
    1.
    发明授权
    Rotary sealing device 失效
    旋转密封装置

    公开(公告)号:US4512790A

    公开(公告)日:1985-04-23

    申请号:US369275

    申请日:1982-04-16

    摘要: A rotary sealing device for connecting a fixed gas supply pipe to a tube rotating about its axis. It comprises a first rotary member for receiving the fixed pipe, a second rotary member for receiving and sealing the rotary pipe and fixed to the first member, and a filter placed in a chamber made in the aforementioned members and forming an obstacle to the gas flow and consequently to an overpressure of said gas, opposing the entry into the said chamber of gas coming from outside the device.

    摘要翻译: 一种用于将固定气体供给管连接到围绕其轴线旋转的管的旋转密封装置。 它包括用于接收固定管的第一旋转构件,用于接收和密封旋转管并固定到第一构件的第二旋转构件,以及置于上述构件中形成的腔室中并形成气体流动障碍物的过滤器 并因此导致所述气体的过压,与从装置外部进入所述室的气体相反。

    Method and apparatus for the production of optical fibers with lateral
gaseous injection
    2.
    发明授权
    Method and apparatus for the production of optical fibers with lateral gaseous injection 失效
    用于制造具有侧向气体注入的光纤的方法和装置

    公开(公告)号:US4457770A

    公开(公告)日:1984-07-03

    申请号:US364251

    申请日:1982-04-01

    IPC分类号: C03B37/018 C03B37/025

    CPC分类号: C03B37/01807

    摘要: The invention relates to an apparatus for producing a preform for constituting an optical fiber. This apparatus essentially comprises a glass maker's lathe and a motor which holds and rotates a hollow silica tube, a torch making it possible to heat a cross-section of the tube and which can be translated along the tube and means for supplying the gaseous compounds consisting of silicon chloride, oxygen and doping agents decomposing under the action of the heat. Part of the products obtained is deposited on the walls of the tube. The supply means comprise a pipe entering the tube in axial manner and at the end of which are provided two radially directed arms, which terminate with an outlet normal to the pipe and arm, said pipe moving in translation integrally with the torch.

    摘要翻译: 本发明涉及一种用于制造用于构成光纤的预成型件的设备。 该设备基本上包括玻璃制造商的车床和电动机,其保持和旋转中空二氧化硅管,火炬使得可以加热管的横截面并且可以沿着管平移并且用于供应气态化合物的装置 的氯化硅,氧气和掺杂剂在热的作用下分解。 获得的部分产品沉积在管的壁上。 供应装置包括以轴向方式进入管的管,并且其末端设置有两个径向指向的臂,其终止于与管和臂垂直的出口,所述管与火炬一体地移动。