Method and apparatus for preparing glass articles
Abstract
Abstract THIS INVENTION PERTAINS TO A METHOD OF TREATING A VIRGIN VITREOUS SURFACE TO PROTECT AGAINST DEGRADING IN STRENGTH AND OTHER PROPERTIES. PRIOR TO COMPLETION OF ANNEALING, THE VITREOUS SURFACE IS EXPOSED TO STANNIC HLORIDE VAPOR IN AN INERT CARRIER TO FORM A COLORLESS COATING OF TIN OXIDE ON THE VITREOUS SURFACE. ARTICLES SO TREATED FORM A PORTION OF THE INVENTION AS DOES TREATMENT OF METAL GLASS-CONTACTING SURFACES IN A SIMILAR MANNER TO CURTAIL ABRASION OF GLASS WHEN CONTACTED BY SUCH COATED SURFACES. THE INVENTION ALSO PERTAINS TO APPARATUS FOR CARRYING OUT THE METHOD BY CONFINING THE STANNIC CHLORIDE VAPOR IN A HOOD WITH MEANS FOR CARRYING THE VITREOUS SURFACE THERETHROUGH. A PARTICULARLY USEFUL APPARATUS INCLUDES INLET AND EXHAUST PORTS TO CONDUCT THE VAPOR ONLY OVER SELECTED PORTIONS OF THE VITREOUS SURFACE.
Inventors
- 👤 Addison B Scholes
Bibliographic Details
Claims Analysis
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