Science for beginners . Fig. 69—Coking chamber of aside-feed Fig. underfeed furnace. 92 THE PRODUCTION AND USE OF liEA^T distillation of the volatile matter takes place. By means ofa damper in the coking chamber door, sufficient air can beadmitted and a sufficiently high temperature may be main-tained in the combustion chamber to burn the volatile mattercompletely (Figs. 68 and 69).

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Keywords: ., bookcentury1900, bookdecade1920, booksubjectscience, bookyear1921