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Individual
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Individual
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Priority to ES0179579ApriorityCriticalpatent/ES179579A1/es
Publication of ES179579A1publicationCriticalpatent/ES179579A1/es
Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products
(AREA)
Abstract
Un perfeccionamiento en las máquinas de estirar tubos y varillas de vidrio o de cristal que consiste esencialmente en disponer en tales máquinas un órgano central rotativo capaz de ser calentado eléctricamente que queda rodeado por el tubo de vidrío o cristal que al ser calentado a la vez por dicho órgano calefactor interiormente y por las paredes del manguito calefactor de la máquina exteriormente permita efectuar el estirado con mayor facilidad y perfección de modo que quede en el interior de los tubos fabricados una superficie enteramente lisa.
ES0179579A1947-08-271947-08-27UN PERFECCIONAMIENTO DE LAS MáQUINAS PARA ESTIRAR TUBOS Y VARILLAS DE VIDRIO Y CRISTAL
ExpiredES179579A1
(es)