Specification of James Gilbertson : constructing furnaces to consume their own smoke.

  • Gilbertson, James.
Date:
1854
Catalogue details

Licence: Public Domain Mark

Credit: Specification of James Gilbertson : constructing furnaces to consume their own smoke. Source: Wellcome Collection.

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    -TV Gilbertsons Improvements in the Construction of Furnaces, ^c. 5 them made of hollow plates of iron, in order that a current of air may pass through them, and in its course become heated and then be discharged into a grating affixed at the top of this cavity, it comes in contact with the smoke and 10 flame of the fire, and causes an almost complete combustion of the whole of the fuel employed. In large furnaces, where a great quantity of air is necessary, I make a portion or the whole of the bars hollow, but I do not claim any Invention in this application of hollow bars, only as in aid of the effect to be produced by the hollow plates at the sides. The accompanying Drawings in 15 the margin of these Presents, and the following description thereof, will more particularly ascertain and determine the precise nature of my Invention; that is to say, Fig. 1 is a section of a furnace constructed according to my improve¬ ment or improvements, from A to B in the Plan, Fig. 2; and Figure 3 is another section, fi om C to D; the same letters refer to the same parts in each SO Figure. A, the boiler ; B, furnace; C, the hollow side plates; D, the furnace bars; E, the bearing bars ; F, the air cavity or ash pit at the back of the furnace, having a door I for the purpose of clearing out the dust and ashes that will accumulate; G, the air grating at the top of the air cavity, to prevent the fuel from falling into the air cavity, and to diffuse the heated air freely among S5 the smoke of the fire; H, an iron plate, or other suitable material, projecting a few inches over the grating to direct the heated air from the cavity on to the fire of the furnace. Now I do not mean to confine myself to the precise form and construction of furnace exhibited in the Drawings in the margin of these Presents, as it is evident various modification may be requisite to adapt my 30 Invention to different kinds and forms of furnaces. In witness whereof, I, the said James Gilbertson, have hereunto set my hand and seal, this Thirteenth day of March, One thousand eight hundred and twenty-eight. JAMES (L.S.) GILBERTSON. 35