Method of making small glass caps having a non-circular cross section
    12.
    发明授权
    Method of making small glass caps having a non-circular cross section 失效
    制造具有非圆形横截面的小玻璃囊的方法

    公开(公告)号:US3597182A

    公开(公告)日:1971-08-03

    申请号:US3597182D

    申请日:1969-11-17

    Inventor: VINZ OTMAR

    CPC classification number: C03B23/097 C03B23/0473 C03B23/11

    Abstract: A METHOD OF PRODUCING GLASS CAPS OF NON-CIRCULAR CROSS-SECTION BY FIRST FORMING A GLASS TUBE OF THE DESIRED NON-CIRCULAR CROSS-SECTION AND THEN HEATING A RESTRICTED PERIPHERAL ZONE OF SAID GLASS TUBE, WHILE THE SAME IS NONROTATABLY SUPPORTED, BY FLAMES FROM A PLURALITY OF NOZZLES OF A STATIONARY BURNER SUBSTANTIALLY SURROUNDING SAID GLASS TUBE AT SAID PERIPHERAL ZONE, SAID NOZZLES BEING SO DIMENSIONED AND SO ARRANGED TO PRODUCE EQUAL HEATING CONDITIONS ALONG SAID ENTIRE NON-CIRCULAR PERIPHERAL ZONE, WHEREBY UPON REMOVAL OF THE LOWERMOST SUPERFLUOUS MATERIAL FROM THE GLASS TUBE A BOTTOM IS FORMED ON THE CAP.

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