Specification of Charles Frederick Stansbury : furnaces of locomotive and other steam boilers.

  • Stansbury, Charles Frederick
Date:
1855
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Charles Frederick Stansbury : furnaces of locomotive and other steam boilers. Source: Wellcome Collection.

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    Stansbury s Improvements in Locomotive and Steam Boiler Furnaces. chambers, spaces, and ovens are kept hot by the reverberation of the flame in its passage from the furnace to the chimney. Near the bottom of the furnace and through the fire bridges e, e, I insert a pipe or tube h, h, one end of which enters into the fire chamber b,* b, while the other communicates with the cold external air. This pipe being kept hot by the circulation of the heated 5 currents in the chambers, &c. heats the air which passes through it to the fire, improving the combustion by means of heat otherwise wasted. Instead of entering the fire chamber, the pipe h, h, may enter either of the chambers d, d, or a separate pipe may conduct air to each or any number of said chambers. The pipe for conducting off heavy and incombustible gases is marked i9 i9 in 10 the Drawings. It is placed near the bottom of the furnace at the end most remote from the fire chamber. One end of this pipe opens into the smoke pipe k, into which the carbonic acid and other heavy products escape through the pipe i, i. This pipe is represented as surrounding the pipe h9 h, but they may be separate, if preferred. I prefer the arrangement shown, as the heat 15 of.the escaping gases is this imparted to the entering air. The ovens g9 g9 under the fire bridges e9 e9 may be constructed so as to con¬ tain water and form part of the boiler, or to contain air, as the nature of the work or the fuel employed may require. Having thus described my improvements, what I claim under the above in 20 part recited Letters Patent is,— First, conducting off the heavy gaseous products of combustion by means of a pipe connecting the lower portion of the furnace with the smoke pipe or flue. And, second, surrounding the induction pipe Ji9 h9 with a larger eduction 25 pipe i, i, by which means the heat of the escaping heavy gaseous products is imparted to the pure air entering to supply the fire. In witness whereof, I, the said Charles Frederick Stansbury, have here¬ unto set my hand and seal, this Third day of February, in the year of our Lord One thousand eight hundred and fifty-five. 30 CHARLES FREDERICK STANSBURY. (l.s.) LONDON: Printed by George Edward Eyre and William Spottisw'oode,
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