Specification of Charles Stevens : smoke-consuming furnaces.

  • Stevens, Charles.
Date:
1861
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Charles Stevens : smoke-consuming furnaces. Source: Wellcome Collection.

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    Provisional Stevens Improvements in Smoke-consuming Furnaces. boxes to a third placed in the middle of them; this third compartment is the smoke consumer, and is itself divided into compartments corresponding with the openings above mentioned, the number of which depends on the length of the grates. Small separations perpendicular to the longitudinal axis of the furnace 5 divide the smoke-consuming department, but are only half the height of the space which separates the grate from the boiler tubes, in order to allow a free space in the upper part, which causes the products of the combustion to pass in the flue placed in the upper part of the fire bridge. The direction taken by the flames is as follows :—The air passing through 10 the grate is partly burnt and ascends to the upper part, heats the boiler tubes, and not finding escape descends by the lower openings above-mentioned. These openings of the grates being opposite to each other, the flames unite in the smoke consumer, and produce a combustion of all the volatile products* SPECIFICATION in pursuance of the conditions of the Letters Patent, filed 15 by the said Charles Stevens in the Great Seal Patent Office on the 20 th December 1861. TO ALL TO WHOM THESE PRESENTS SHALL COME, I, Charles Stevens, of 31, Charing Cross, in the County of Middlesex, Patent Agent, send greeting. 20 WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters Patent, bearing date the Twentieth day of June, in the year of our Lord One thousand eight hundred and sixty-one, in the twenty-fifth year of Her reign, did, for Herself, Her heirs and successors, give and grant unto me, the said Charles Stevens, Her special licence that I, the said Charles 25 Stevens, my executors, administrators, and assigns, or such others as I, the said Charles Stevens, my executors, administrators, and assigns, should at any time agree with, and no others, from time to time and at all times thereafter during the term therein expressed, should and lawfully might make, use, exercise, and vend, within the United Kingdom of Great 30 Britain and Ireland, the Channel Islands, and Isle of Man, an Invention for “ Improvements in Smoke-consuming Furnaces,” a communication to me from abroad by Antoine Leonide Lacroix, of 42, Rue Laffitte, Paris, in the Empire of France, upon the condition (amongst others) that I,' the said Charles Stevens, my executors or administrators, by an instrument in 35 writing under my, or their, or one of their hands and seals, should particularly