Abstract:
A METHOD OF SECURING METAL SUPPORTING MEMBERS HAVING CAVITIES TO INSIDE GLASS SURFACES OF A CATHODE RAY TUBE BY GRINDING DOWN THE EDGES CONTIGUOUS WITH THE CAVITIES AT TWO OPPOSITE LOCATIONS BEFORE FILLING THE CAVITIES WITH A SUSPENSION OF A SEALING GLASS. AFTER DRYING, SINTERING AND COOLING THE GLASS THE MEMBERS ARE PLACED IN A JIG FOR POSITIONING EACH MEMBER SO THAT THE CENTER LINES FOR THE TWO OPPOSITELY LOCATED SECTIONS THAT HAVE BEEN GROUND DOWN EXTEND ALONG LINES WHICH ARE AT RIGHT ANGLES TO THE MAIN STRAIN LINES IN THE GLASS WHERE THE MEMBER IS TO BE LOCATED. THE MEMBERS ARE THEN PRESSED AGAINST THE GLASS SURFACES SO THAT ONLY THE CAVITY EDGES THAT WERE NOT GROUND DOWN CONTACT THE GLASS SURFACES, AND THE ENTIRE ASSEMBLY IS THEN PLACED IN AN OVEN TO LIQUEFY THE GLASS. THE LIQUEFIED GLASS FLOWS AROUND THE EDGES OF THE MEMBER AND CAUSES THE MEMBERS TO ADHERE TO THE GLASS SURFACES.