Society of Glass Technology · [Sheffield] · leaf 749
ldingly held, which scores the edge of the bulge, C, in the neck of the bulb. The bulb then passes over burners, 107, the flames of which heat the scored neck until it cracks. The further movement of the table carries the bulb over other burners which heat the cracked- off end of the neck until the… … Fig. 248. MACHINERY FOR THE WORKING OF GLASa 267 a templet are mounted on a rocking support to rotate together about an axis parallel to the axis of the grinding-wheel, the templet bearing against an abutment, the abutment is carried upon a support mounted to rock about the axis of the…
Glass
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
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