Specification of John Houston : consuming smoke in furnaces.

  • Houston, John.
Date:
1859
Catalogue details

Licence: Public Domain Mark

Credit: Specification of John Houston : consuming smoke in furnaces. Source: Wellcome Collection.

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    Houston's Improvements in Consuming Smolce in Furnaces. 4 - ' —i.iiii ....... . .n . .1 - - ■ - ■ ■ ■ — ■ — ■ i - .1 i... i.i . ■ .... I . — ■ ... I 1.1 —■——^ formed, to be particularly described and ascertained in and by the following statement, that is to say :— This Invention will be readily understood from the following statement before referred to, and by referring to the accompanying Drawings; in which Fig. 1 5 denotes a plan view of an arrangement which may be adopted in that kind of boilers called “ stationary.” In this case there is a damper in the chimney (not seen in the Drawing) for shutting in when deemed necessary the lower part of the stack from the atmosphere, and thus temporarily preventing, as when “ firing,” the smoke from ascending directly from the smoke box beneath it. 10 This smoke box is a development of a smoke chamber A, wherein is a tube or pipe B conveying gas (generated extra and independent of the furnace), which is ignited at the perforations or opening, and beyond this is an air or blowpipe C, which air or blowpipe as the smoke is prevented from ascending from the chimney, as aforesaid, will keep up a due supply of air, so 15 that the gas flame may act upon the nascent smoke coming from the burning fuel in the fire grate, and destroy it. Fig. 2 is a transverse section, and Fig. 3 a longitudinal view, of a common cylindrical boiler and furnace, the above arrangement being modified so that instead of having a gas pipe at some distance behind the bridge, here the gas 20 pipe G leads into a hollow bridge H, as does the air pipe I, and at top of the hollow bridge is a very fine opening at which the gas is ignited. Fig. 4, a transverse section of a cylindrical boiler with a fire-place inside. G, gas pipe ; I, air pipe ; H, hollow bridge. The description of Figs. 2 and 3 will apply to this Figure. 25 Fig. 5, view of a tubular boiler with this Invention applied to its furnace. Things here depicted other than those above mentioned being noted on the Drawing. - Having now described the said Invention, and in what manner the same is to be performed, as required by the aforesaid Letters Patent, I hereby 30 declare that I claim not the separate and distinct details above mentioned, but the improvements in the means of effecting the consumption of smoke, wherein provision is made (by means of a damper, for instance), for preventing the smoke from ascending directly from the ordinary smoke box beneath the chimney, as also for a tube or pipe or passage way for gas generated indepen- 35 dent of the furnace, so as to admit said gas at, near, or behind the back of the fire-grate; perforations or an opening or openings being provided in such tube or pipe or passage way, so that the gas may be ignited (and ignition may be maintained by an air pipe or blowpipe), and jets or a stream or streams of