Society of Glass Technology · [Sheffield] · leaf 711
filed March 15th, 1920, No. 365783).—According to this invention,a parison mould consists of three portions, namely, a body portion,a movable bottom, and an upper portion which includes the neckring and the shoulders of the mould in one piece. With the bottom plug in its lowest position, and the… … Fig. 199. MACHINERY FOR THE WORKING OF GLASS. 311 Hie glass into the neck ring and forming the neck of the bottle.It is claimed that this method of building up a mould is verysuitable for long-necked ware, as the positive driving of the glassensures the complete rilling of the neck ring. S. E. 400.…
Glass
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