Specification of Joseph Johnson and Joe Cliffe : furnaces.

  • Johnson, Joseph
Date:
1854
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Joseph Johnson and Joe Cliffe : furnaces. Source: Wellcome Collection.

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    Johnson Cliffes Impts. in Furnaces, or in the Means of Consuming Smoke. NOW KNOW YE, that in compliance with tlie said proviso, we, the said Joseph Johnson and Joe Cliffe, do hereby declare that the nature of our said Invention, and the manner in which the same is to be performed, is particu¬ larly described and ascertained in and by the following description thereof, reference being had to the Drawings hereunto annexed, and to the letters and 5 figures marked thereon, (that is to say :— Our Invention of improvements in furnaces or in the means of consuming smoke, consists of an improved mode of constructing furnaces or fire-places, whereby heated atmospheric air may be admitted to the combustible gases given off during the combustion of the fuel in the fire-place, and allowed to 10 become intimately mixed with such combustible gases for the purpose of burn¬ ing or consuming them, thereby preventing the formation of smoke and greatly economizing the fuel, a considerable portion of the valuable parts of which would otherwise escape by the flue and be discharged into the atmosphere either in the form of dense smoke or valuable combustible gases, which would 15 then become lost. Various plans have heretofore been devised for admitting either heated or cold atmospheric air to the flues of furnaces, for the purpose of burning or consuming the combustible gases therein, and thereby economizing fuel and preventing the formation of smoke and the discharge of valuable combustible gases or smoke from the chimney; but such plans have not always 20 succeeded in effecting the desired object, although to a certain extent an economy of fuel has sometimes resulted from their employment. By the im¬ provements hereafter described we have endeavored to obviate some of the objections to which the plans heretofore in use are liable, and at the same time it has been our aim to remedy such defects in as simple and economical a 25 manner as possible. In our improved furnaces the air to be mixed with the combustible gases in the flue is admitted by an aperture in front, either imme¬ diately over the fire-door or at some other part where it may be well heated, and is conducted along a pipe or pipes, passage or passages, situated close under the seating of the boiler, to a hollow arched chamber, furnished with 30 openings for the purpose of discharging the air downwards among the heated combustible gases as they pass from the fire-place to the flue; or the atmo¬ spheric air is conducted from the entrance opening (which should be furnished with a door) to an arched channel or chamber over the fire-place, where it becomes heated by the fire, and from this arched chamber the heated air passes 35 down longitudinal side channels, flues, or pipes, along which it is conducted to the interior of a hollow arch, from whence it issues in a highly heated state through openings made in the inner or under side of the arch, and, becoming mixed with the combustible gases which are passing from the fire-place into
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