The distilling chamber is heated from the bottom. Heating flues in the lower portion of the side walls if auxiliary in function do not exclude from this subclass. The chamber may have means also for the introduction of gas or vapor to assist the distillation or react with the distilland.
SEE OR SEARCH THIS CLASS, SUBCLASS:
124+, for a chamber having flues, subclasses 138+ and 220, for a retort having flues also subclasses 121, 129, and 134, for a retort with fluid injection means.
SEE OR SEARCH CLASS
201, Distillation: Processes, Thermolytic,
31, and 38+, for a carbonization process in which fluid is passed into the carbonizing zone.
