ES240847A3 - Improvements in the manufacture of conical glass tubes with interior accuracy measures (Machine-translation by Google Translate, not legally binding)
- Google Patents
Improvements in the manufacture of conical glass tubes with interior accuracy measures (Machine-translation by Google Translate, not legally binding)
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Afora SA
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Afora SA
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Priority to ES0240847ApriorityCriticalpatent/ES240847A3/en
Publication of ES240847A3publicationCriticalpatent/ES240847A3/en
Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products
(AREA)
Abstract
Improvements in the manufacture of conical glass tubes with internal pressure measurements, characterized essentially by the fact of comprising a first phase by which a hard tube is inserted inside a glass tube in a manner appropriate to the case, is caused an external pressure of air and hermetically closes this tube, following this phase, another completely independent by which, the whole is subjected to a total heating until the glass reaches a state of sufficient viscosity that allows the movement of its molecules, necessary for adaptation to the desired shape of the inner body, under the pressure previously created. (Machine-translation by Google Translate, not legally binding)
ES0240847A1958-03-201958-03-20Improvements in the manufacture of conical glass tubes with interior accuracy measures (Machine-translation by Google Translate, not legally binding)
ExpiredES240847A3
(en)