Society of Glass Technology · [Sheffield] · leaf 669
224 JOURNAL OF THE SOCIETY OF GLASS TECHNOLOGY. flat or slightly curved. An electric heater, 9, embedded in the barenables its temperature to be raised. The bar is placed in thedrawing-pot, 2, with its upper edge horizontal and beneath the … o & Fig. 145. line of generation of the sheet, 4. The glass flows from the tankbeneath and around the bar, and the glass flowing into the interiorof the sheet is made more fluid. Water-coolers, 14, may be usedto stiffen the surface glass. In a modification, the bar, 6, is hollowand is heated by…
Glass
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