| 摘要 |
The invention relates to a method and apparatus for producing glass ampoules wherein a neck is drawn which is twice the length of a single ampoule neck, from a portion of a vertically held glass tube, which portion is an ampoule body length away from the fused end of the tube. The bottom half of the double length neck is associated with a lower ampoule while the upper half is associated with an upper ampoule. When the double length neck has been formed the bottom part is separated by a glass melting flame. An air jet is applied at the point of separation of the two parts to prevent their open ends from being closed by fusion. The second ampoule is then separated from the glass tube by the melting flame at a point which is one ampoule body length above the upper part of the double length neck still attached to the glass tube. |
