Specification of Charles Constant Joseph Guffroy : furnaces and other fire-places.

  • Guffroy, Charles Constant Joseph.
Date:
1855
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Charles Constant Joseph Guffroy : furnaces and other fire-places. Source: Wellcome Collection.

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    Guffroys Improved Smoke-consuming Apparatus. the cinders; s, s\ are blocks or beds for supporting the ends of the part b. The block sl which is at the lowTer end is in a piece with the upper side of the “tail.” The part b is made in five pieces (Figures 8 and 9), one part of each being flat, as at a, so that when fitted together they form, as it were, a bed or table extending the whole breadth of the furnace on which the fuel rests. The 5 shape given to the air passages c, c, c1, c\ is clearly shewn in the plan and section (Figures 8 and 9.) i, i, are wedges or partitions inserted so as to divide the air entering through cl, c1, into numerous streams. The sides of the passages c, c, are kept apart by pins or stays, one at each end and one in the centre, t is a bar or rest for the stoking tools; /, door in the “tail”; k> seat for the 10 stoker; v, screen to be used when the apparatus is employed in locomotive engines for directing the air into the air holes c, c, c1, c\ when the locomotive is in motion ; z, hinge for lowering the tail when it is desired to empty it. The jolting of a locomotive is generally sufficient to work the fuel gradually down as it burns, but in fixed engines the stoker may from time to time work the 15 fuel down by means of a flat-ended iron rod, introduced through the bottom of the triangular spaces formed by the air holes c, c, c1, cl. The state of the fuel may be inspected from time to time through the apertures clll9 c111, as also the color of the flame (especially at the part a1). If the flame is blueish, it would indicate the presence of oxide of carbon, and an insufficient supply of air, in 20 which case the stoker should thin the layer of fuel over the holes c\ c\ or he may slightly raise up the mass of fresh fuel at a, so as to admit more air. If the flame is yellowish, it would indicate that there was too much air, in which case the fuel at the mouth of the furnace must be heaped up to shut the air off; and if this should not be sufficient, the top hole c111 might first be plugged 25 up, and then the lower of these holes, if necessary. Figure 11 is a vertical section of a stationary boiler with my apparatus applied thereto. The arrangement of the furnace is similar to the foregoing, except that the fire bridge p is hung from the top. The heated products of combustion, instead of passing over the fire bridge and between it and the 30 boiler, are driven under the fire bridge, and nearer the layer of fuel on the bottom of the furnace. Figure 12 is a transverse section of the same. And having now described the nature of the said Invention, and in what manner the same is to be performed, I declare that I claim as of my said Invention,— 35 First, the peculiar construction of smoke-consuming apparatus, in which fresh fuel is received upon an incandescent mass after the fire has been lighted^ and in which the products given off from such fresh fuel are caused to pass through the incandescent mass, as herein-before described.