Specification of Samuel Hall : apparatus for supplying air to furnaces.

  • Hall, Samuel.
Date:
1854
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Samuel Hall : apparatus for supplying air to furnaces. Source: Wellcome Collection.

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    HalVs Improvements in the Combustion of Fuel and Smoke. Li r of the said in part recited Letters Patent, as in and by the same, reference being thereunto had, wili more fully and at large appear. NOW KNOW YE, that in compliance with the said proviso, I, the said Samuel Hall, do hereby declare that the nature of my said Inventions and the manner in which the same are to be performed, aie fully desciibed and ascertained in and by the following description thereof, reference being had to the Drawings hereunto annexed, and to the figures and letters marked thereon, the same letters denoting the same parts in all the Figures, (that is to say) :— The objects of my Inventions are improvements upon and additions to my methods and apparatus for more perfectly effecting the combustion of fuel and smoke, as described in the Specifications of my Patents of Twenty-fourth June One thousand eight hundred and thirty-six, Thirtieth July One thousand eight hundred and thirty-eight, and Fourteenth January One thousand eight hundred and forty-one. Figures 1 and 2 represent my Invention as applied to the furnace of an ordinary waggon-shaped boiler for a stationary engine. Figure 1 being a vertical and longitudinal section taken through the middle, and Figure 2 a horizontal section taken through the flame or smoke flues, a is the fire¬ place ; b, the bridge ; c, the smoke flue, through which the smoke and heated 10 15 20 gases pass to the chimney d in the course shown by the arrows; e,e, are two metallic plates, inserted at the top and bottom of the passage where the smoke flue leads from the boiler into the chimney. In these two plates the ends of a number of pipes/,/, are fixed, the upper ends of which are open to the atmosphere and the lower ends to the hot air flue g, which passes under 25 the boiler and under the main branch of the flame or smoke flue, as shewn in Figure 1, until it arrives at the bridge 5, where it branches off right and left, so as to form two small flues /?, one on each side of the fire-place, and beneath a portion of the smoke flue, as shown by dotted lines in the horizontal section, Figure 2. From the flues /i, A, as well as from the lining of the door, 30 small apertures i, 2, open into the fire-place. The draught of the chimney produces a descending current of air through the pipes//, and along the air flues g and h, and through the openings 2, i, into the fire-place, as shown by arrows; the temperature of this air is greatly raised in its passage through the pipes /,/, and flues g and h, and then mingles with the smoke and 35 inflammable gases as they are liberated from the burning fuel and effectually consumes them. Figures 3 and 4 represent my Invention as applied to a bleacher’s pan,