horizontal retort

horizontal retort

[‚här·ə′zänt·əl ′rē‚tȯrt]
(metallurgy)
An intermittent unit made from a siliceous fireclay and formerly used for zinc smelting.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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The two types of retort worked in tandem for many years because the horizontal retort produced burning oil for lighting and the crude oil did not need to be distilled before refining.
Historical review paper the shale-oil industry in Scotland 1858-1962. II: oil-shale quality, resources and technological advances
You enter the house through a kind of horizontal retort, a narrowish pass between a brilliant pink wall and a cylinder of silky grey concrete -- the base of the same cylinder glimpsed outside, it encloses a cloakroom.
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