Society of Glass Technology · [Sheffield] · leaf 476
othe process of making sheet glass in which the glass is drawnvertically upwards in a sheet from the metal in a forehearth by aroll, 8, a^id bending around the roll, passeshorizontally into a lehr. In order to prevent marring the surfaceof the sheet, it has been proposed to makethe roller, 8, of…
Glass
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