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IMPROVEMENTS IN OR RELATING TO THE ANNEALING OF PATTERNED GLASS AND THE ANNEALING LEHR
IMPROVEMENTS IN OR RELATING TO THE ANNEALING OF PATTERNED GLASS AND THE ANNEALING LEHR
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机译：对玻璃化玻璃和退火层退火的改进或与之相关的改进
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摘要
A ribbon of patterned glass having contiguous areas of thicker and thinner glass is annealed by passing through a lehr having a plurality of heaters arranged for intensive reheating of the glass in spaced-apart zones extending across the lehr and of narrow width in the direction of the length of the lehr, whereby in each said zone a greater reheating occurs in thin areas of the glass than in thicker areas so that the temperature gradient existing between thick and thin areas of the glass is reduced in passage of the glass through each of the zones.
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