Society of Glass Technology · [Sheffield] · leaf 636
r part, 2, of the producer, which is supported by standards, FUELS, REFRACTORIES, AND FURNACES. 257 2, is separate from the lower or fuel-containing part, 5, so thatthe fuel section may be rotated if desired without interfering withthe arrangement of the gas flues, 4. The lower section consists ofa… … Fig. 153. thickness of 4^ inches has been found suitable with the ordinarygrade of firebrick. Around this zone, the iron shell is formed as anopen trough, 10, which forms a jacket for the constant circulation ofcooling water, and also receives a depending portion, 12, of theshell of the v;pper…
Glass
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