Society of Glass Technology · [Sheffield] · leaf 647
pported by cast iron and permitting the use of thin tiles, andaccordingly increasing radiation and decreasing fuel consumption.Tile breakage was reduced to a minimum, since the tiles had onlytheir own weight to support, and the construction of the lehr wassuch as to allow free expansion and… … Ftg. 158 FUELS, REFRACTORIES, AND FURNACES, 269 construction, was in the top of the fire-box, the flame being drawndown either side and underneath the pans; it was also in an easilyaccessible position and ensured a self-cleaning fire. Draught control being applied to each lehr, a uniform…
Glass
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