Society of Glass Technology · [Sheffield] · leaf 597
y 2nd, 1923. Filed June 7th, 1919, No. 302544).—Sheet glass, which has been made by drawing in a continuoussheet and passed through a lehr, is carried by an endless conveyerthrough an acid bath in order to remove impurities and clear thesurface of the glass. G. D. 215. Producing Glass Sheets or… … Fig. 110. Fig. 111. over the edge, 2, of a wall, 3. Fig. 110 shows a form of apparatusfor drawing plane or curved sheets and Fig. Ilia form for drawingcylinders. Glass from the surface of the furnace outlet is pre-vented from passing over the overflow wall by a plate or ring, 5,dipping into the…
Glass
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