Society of Glass Technology · [Sheffield] · leaf 714
y a hand lever, 60, and also operates a pair of levers, 62,pivoted to the other end of the frame, 41, which support thelower end of the blow-iron. The marvering device consists of an arc-shaped plate, 72(Fig. 195), secured to an arm, 71, which is pivoted to ahead, 70, rising from the upper end of… … 232 JOURNAL OF THE SOCIETY OF GLASS TECHNOLOGY. is swung upwards, as previously explained, so that it is rolledalong the plate, 72, and is marvered. At the top of this move-ment, the latch holding the link, 73, extended is tripped by theframe, 41, so that the link collapses and the plate, 72,…
Glass
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