Specification of John Gray : apparatus for consuming smoke.

  • Gray, John.
Date:
1854
Catalogue details

Licence: Public Domain Mark

Credit: Specification of John Gray : apparatus for consuming smoke. Source: Wellcome Collection.

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    Grays Improved Apparatus for Consuming Smolce. to produce the required result. Thus, in Figures 3, and 4, I have shown the apparatus constructed without the valve, and adapted to a furnace placed within a steam boiler. Figure 3, is a longitudinal section, and Figure 4, is a transverse section. A, is the outer shell of the boiler ; M, is the flue or tube which contains the grate B, bridge 5 C, and wall H; E, is the plate which supports the bridge; and F, is the vertical plate beneath it. This plate does not reach to the bottom of the tube M, but is cut off to leave a space G, for the entrance of the air. The other parts are similar to those similarly marked in Figures 1, and 2. The ends of the grate bars B, pass under the plate E, 10 which arrangement is advantageous in cases in which grate bars having a reciprocating end motion are employed. I have shewn my apparatus as adapted to steam boilers, but it is obvious that it is also applicable to brewers’ coppers, bakers’ ovens, reverberatory furnaces, and many other descriptions of furnaces. 15 Having now described the nature of my Invention, and in what manner the same is to be performed, I wish it to be understood that I do not claim generally the admitting of air at the bridge of a furnace; but what I claim is, the constructing the bridges or back parts of furnaces with two passages or sets of passages communicating with 20 each other and with a common chamber or passage for the admission of air, and arranged in manner herein-before described. In witness whereof, I, the said John Gray, have hereunto set my hand and seal, this Thirty-first day of January, in the year of our Lord One thousand eight hundred and fifty-four. 25 JOHN GRAY, (l.s.) Witness, Charles Cowper, 20, Southampton Buildings, Chancery Lane. 3a LONDON: Printed by George Edward Eyre and William Spottiswoode,