Society of Glass Technology · [Sheffield] · leaf 675
supported by springs. 26, in order to permit expansion of the rim, 17, and yet securegood contact between the rim and the flange, 12. The pot ismounted in a furnace, 14, supplied with gas burners, 13, to meltthe aftermath off the bottom, 16, after it is reversed. G. D. 272. Drawing Glass Cylinders.… … and consists of a bait designed to avoid the breaking of the neck of the cylinder and imperfectformation of cylinder necks dueto faulty control of the airsupply. The bait consists of a hollowannular member having adomed top wall, 4, and curvedlower walls, 2, 3, which areseparated at their lower…
Glass
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