Society of Glass Technology · [Sheffield] · leaf 214
in between thecore and the mould, and the core was suspended from a bar restingupon the outside mould, as in Fig. 1. The pots obtained were usable, but were not free from holes,the difficulty being that if the slip were thick, air bubbles wereentrapped at the base, while if the slip were thin… … Mou/d Fig. 1. drawn towards the walls of the mould more easily than coarse,and the central portion of the pot is the last to solidify. Several pots were cast, in this manner and used. They all con-tained flaws. Some showed a tendency to crack on drying andsubsequent firing, probably because the…
Glass
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
