Society of Glass Technology · [Sheffield] · leaf 463
d themould bottom, 33,which contains a ver-tically movable centralsection, 34, which ismoved downwards bythe spring, 35, andupwards by the cam,36, on the frame, 10.This movable section,34, is moved upwardsafter the mould closesand its projectionenters the spaceformed in the parisonby the… … Fig. 32.
Glass
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
