Society of Glass Technology · [Sheffield] · leaf 593
an adjustable refractory block, 18, which is brought intoclose proximity with the glass sheet. The chamber, A, isheated by gas burners, 13, and is provided with an opening closeto the issuing glass. The block, 9, is reduced in thickness at thesides, as shown in Fig. 144, and is formed with… … Fig. 144. MACHINERY FOR THE WORKING OF GLASS. 215 and windows are fitted through which the outflow of the glass canbe observed. The blocks, 34, 35, may slide in grooves in refrac-tory blocks arranged at the sides of the channel, 33, and the blocksmay be provided with additional grooves to receive a…
Glass
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
