Specification of John Miller : furnaces.

  • Miller, John.
Date:
1857
Catalogue details

Licence: Public Domain Mark

Credit: Specification of John Miller : furnaces. Source: Wellcome Collection.

    6/8 (page 4)
    Miller s Improvements in Furnaces. fuel in the furnace, and thus ensures as near as may be perfect consumption or prevention of the smoke, and consequently effects great economy in fuel. I have found in practice that good results have been obtained for effecting the objects of my said Invention, when the combined area of the air passages between the plates D, D1, when the furnace door is closed, is in the proportion 5 of one-half a square inch to each square foot of fire surface. Having now fully described and set forth the nature and object of my said Invention of “ improvements in furnaces, for more effectually consuming the smoke and economizing the fuel employed therein,” together with the best means I am acquainted with for carrying the same into practical effect, I would 10 remark, in conclusion, that what I claim as my Invention intended to be secured to me by the above in part recited Letters Patent is, the adapting to furnace doors two sets of metal plates, arranged and disposed at opposite angles to each other in a skeleton door or metal frame, for the purpose of preventing radiation of heat outwards from the furnace fire, and at the same time admitting air into 15 the furnace to support combustion of the fuel therein, thereby consuming more effectually than heretofore the smoke therefrom, and economising the fuel employed, as above stated In witness whereof, I, the said John Miller, have hereunto set my hand and seal, this Fifteenth day of December, in the year of our Lord One 20 thousand eight hundred and fifty-six. JOHN MILLER, (l.s.) Witness, John Shea, Fan Street, Drogheda. on LONDON: Printed by George Edward Eyre and William Spottiswoode, Printers to the Queen's most Excellent Majesty. 1857.