Society of Glass Technology · [Sheffield] · leaf 639
icular mould. The amount of air is regulated according tothe size of the mould by turning off some of the valves, V. H. G. C. 359. New Method of Making Sheet Glass. E. Dauner,Detroit, Michigan, U.S.A. (Brit. Pat., No. 159114, May 26th,1920).—Molten glass flows in a flat stream, 3, from a tank, 1,…
Glass
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