Society of Glass Technology · [Sheffield] · leaf 539
RNAL OF THE SOCIETY OF GLASS TECHNOLOGY. annealing lehr, the muffle heating chamber, 1, is constructed ofcorrugated cast-iron plates, preferably with high silica and lowcarbon content, and the walls of the cooling-portions, la, lb, etc.,are of different thicknesses, so that a desired graduated… … Fig. 94. Fig. 95. outlet, 9a, to the regenerator, etc. The flues, 4, are at the back andfront alternately, so that half the gases pass in one direction roundthe muffle and half in the other direction. The first cooling-portion, la, is built of brickwork, etc., and the remaining portionsof metal…
Glass
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
