Society of Glass Technology · [Sheffield] · leaf 461
er 745 on arm 746. The pin 731 is adjustable by means ofworm gearing 733, 735 operated by a hand-shaft 736 to vary thedistance between the end of the valve stem 718 and the head 732of the pin 731. The ai-m 746 and roller 745 are adjustable later- VOL. ITT. 6 82 JOURNAL OF THE SOCIETY OF GLASS… … 746Fig. 26. (Fig. 27) of the cam 711 is reduced so that, when the roller 745rides on this part, the value 717 is held only slightly open todiminish the vacuum at the back of the blank. Specification111122 also is referred to. H. G. C. 132. Automatic Machinery for Electric Bulb-making.Brit. Pat. No.…
Glass
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