Specification of Désiré Marchal : combustion of smoke.

  • Marchal, Désiré.
Date:
1867
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Désiré Marchal : combustion of smoke. Source: Wellcome Collection.

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    Provisional Marchal's Improvements in the Combustion and Prevention of Smoke, having been previously carburated as herein-after mentioned. The heated air or superheated and carburated steam is conducted from the reservoir in which the same is contained to the before-mentioned apertures by means of tubes, and issuing through the apertures in the furnace, oven, or grate operates upon the incandescent fuel, to which it imparts great additional heat and mingles 5 with the smoke and gaseous products evolved therefrom, the latter being com¬ pletely consumed and utilized. The carburization of the heated air and super¬ heated steam may be effected by any of the well-known methods, but one of the most simple modes is to cause the air or steam to pass through or be placed in communication with suitable receivers or vessels containing volatile 10 hydrocarbon fluids or substances such as petroleum oil, bituminous schist, or the oil obtained therefrom, naphtha, tar, or essence of turpentine, or any analogous and suitable substance, such substances, or any or either of them, being employed singly or in combination with each other. The heated air or superheated steam thus brought into contact with the before-mentioned 15 substances, or whichever of them are or is so employed, raises the same rapidly to the like temperature, and causes the same to be converted into gas or vapour, a portion whereof becomes mixed with the heated air or superheated steam, which together with the remainder of the gas evolved enters the furnace, oven, or grate, where the same become instantly inflamed and combine with 20 and consume the smoke and other products resulting from the combustion of the fuel. A jet of hydrogen gas, either alone or used in combination with hot air or superheated steam, carburated as before mentioned, may also be employed with similar results. In some cases in which this Invention may be applied to furnaces, ovens, or grates of peculiar construction some 25 variations of the mechanism and arrangements employed for the introduction of the heated air or superheated steam may be necessary 5 but inasmuch as they do not affect the principles of this Invention, and will be manifest to any person conversant with such operations, they need not be particularly described. 30 SPECIFICATION in pursuance of the conditions of the Letters Patent, filed by the said Desire Marchal in the Great Seal Patent Office on the 12th February 1867. TO ALL TO WHOM THESE PRESENTS SHALL COME, I, Desire Marchal, of Brussels, in the Kingdom of Belgium, Civil Engineer, send 35 greeting.