Society of Glass Technology · [Sheffield] · leaf 670
ACHINERY FOR THE WORKING OF GLASS. 225 glass consists in causing the molten glass to flow by gravity fromthe tank through the space between cooled rotated rolls wherebythe glass is rolled into a sheet. The apparatus comprises a pairof water-cooled rolls, 5, 6, which are placed close against a… … Fig. 147. the tank, and electric heaters, 7, arranged in grooves in the wallof the forehearth, enable the temperature of the metal in the slot,4, to be regulated. The rolls, 5, 6, and the lehr, 27, are mountedon wheeled trucks to enable them to be moved away from thetank. Burners, 44, are provided…
Glass
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