Society of Glass Technology · [Sheffield] · leaf 572
2, 3, consisting of side walls, 6, supportingarches, 8, built of tiles, are arranged beneath a crown, 4, the arches,8, protecting the metal in the muffles from contact with the gasesin the combustion chamber, 9. Each pot has a dog-house, 12(Fig. 53), for the insertion of the batch, and it also… … Fig. 53. Fig. 54. a working chamber, 17, whence the metal is taken out through ahole, 18. The three pots and their refining chambers areseparate from one another, but the working chambers are in com-munication, so that the metal stands at the same level before allthe working holes. In use, only one…
Glass
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
