Society of Glass Technology · [Sheffield] · leaf 245
crevices in the brickwork of the side walls or roof, such a leakagemay locally affect the temperature surrounding a pot and causea cool spot, which often results in a cracked pot. In the Stein RECENT IMPROVEMENTS IN GLASS FURNACES. 157 furnace the air })assages in the recuperators are vertical, and…
Glass
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer01inte-413-164.webp)
