Society of Glass Technology · [Sheffield] · leaf 508
and a rocking arm, thereby forming thereduced threaded neck portion of the vial. The two rollers arethen opened and withdrawn along with the central plunger by theaction of their several cams, and the conveyor moves one stepforward, bringing another blank to the forming position. S. E. 99.… … Fig. 49. 23rd, 1921, No. 184699).—Relates to bottle-making machines in which a divided ring-mould is employed, such as the machine described in Specification 21158/01, and consists in fixing one-half, 1, of the mould to a carrier plate, 3, while the other half, 2, is carried by a member, 8, pivoted…
Glass
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