Specification of Thomas Holmes and Thomas Aspinall : diminishing the production and effecting the combustion of smoke.

  • Holmes, Thomas.
Date:
1857
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Thomas Holmes and Thomas Aspinall : diminishing the production and effecting the combustion of smoke. Source: Wellcome Collection.

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    Holmes Q Aspinall's Improvements for Preventing the Production of Smoke, Sfc. part of soda asli. The quicklime known as bleachers’ refuse lime answers the purpose very well. We have found quicklime or mixture of quicklime and soda ash added to the fuel, in the proportion of seven pounds to each hundred¬ weight of the fuel put into the furnace, to effect the desired object. Whicli- 5 soever of the above-mentioned ingredients or mixtures be used, it may be either mixed with the fuel before the latter is put upon the fire, or it may be thrown over the fuel immediately after the fuel is charged on the furnace. We prefer, however, to mix about one-half of the proper proportion of the quicklime or mixture of quicklime ajid soda ash with the fuel before its 10 introduction into the furnace, and then to throw and distribute the remaining half proportion over the surface of the fuel immediately after its introduction into the furnace. Having thus described the nature of our Invention, and the best means known to us for performing the same, we hereby declare that we do not confine 15 ourselves to the use of the proportions and mixtures above recommended, and which we find to be most suitable for the bituminous coals generally used in furnaces and fire-places; but wTe claim as our Invention the use of lime or substances containing lime (either with or without the addition thereto of soda ash or other alkaline substance) for the prevention of smoke in furnaces and 20 fire-places, by the admixture of such substance or substances as aforesaid in any proportions with the fuel used in the said furnaces and fire-places. In witness whereof, wre, the said Thomas Holmes and Thomas Aspinall, have hereunto set our hands and seals, this Fourteenth day of March, One thousand eight hundred and fifty-seven. 25 . THOMAS HOLMES. '(l.s.) THOMAS ASPINALL. (l.s.) LONDON: Printed by George Edward Eyre and William Spottiswoode, Printers to the Queen's most Excellent Majesty. 1857.