Society of Glass Technology · [Sheffield] · leaf 589
,and also gears with a pinion actuated by an electric motor. Thelevers, 18, are thus revolved, and the groove is formed by thebits, 18^, which have been moved outwards by the raising of thegear, 4. During the next movement of the table, the bits, 18,are moved inwards and the block, 17^, is lowered.… … Fig. 135. MACHINERY FOR THE WORKING OP GLASS. 211 device similar to that used at the neck-forming stage. Furthermovement of the table causes the mould to be opened and allowsthe parison to be removed in the tongs. The moulds are openedand closed by sliding blocks actuated by a central stationary…
Glass
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