The Probert Encyclopaedia of Science & Technology

RETORT

A retort is a vessel used in the extraction of volatile products by heating. It differs from a still in being employed at a higher temperature, and for actions in which, as a rule, chemical changes occur. In general a retort consists of a chamber to contain the materials to be heated, fitted at the top with a pipe to lead off vapour, and very often a door or hopper for filling.
Research Retort