Society of Glass Technology · [Sheffield] · leaf 584
mould,M, and brought down by ahand-lever, 16, so as to formthe initial blow opening.The plunger, 15, is thenremoved, and a blowinghead, 26, brought into placeto blow the bottle. Thehead, 26 (Fig. 78), iscarried by a loose doublevalve, 27. When the headis raised, the valve, 29, pre-vents the escape… … 102 JOURNAL OF THE SOCIETY OF GLASS TECHNOLOGY. hand-operated plunger, 13, which forces oil into a cylinder, 10, andso raises a piston, 9, the rod, 8, of which carries the mould bottom,B. An electro-motor, 34, drives a gear, 33, feathered on the rod,8, and so rotates the bottom, B, which has…
Glass
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