Specification of William Smith and Donald Bethune : chimneys and furnaces.

  • Smith, William.
Date:
1857
Catalogue details

Licence: Public Domain Mark

Credit: Specification of William Smith and Donald Bethune : chimneys and furnaces. Source: Wellcome Collection.

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    A.D. 1856 ....... N° 3063. Chimneys and Furnaces. (This Invention did not proceed to the Great Seal.) PROVISIONAL SPECIFICATION left bv William Smith and Donald 90 Bethune at the Office of the Commissioners of Patents, with their Petition, on the 26th December 1856. We, William Smith, of Number Eighty-five, Margaret Street, Cavendish 5 Square, London, Engineer, and Donald Betiiune, of Cambridge Terrace, Hyde Park, London, Esquire, do hereby declare the nature of the said Inven tion for “ Consuming or Preventing Smoke in Chimnies and Furnaces/’ to be as follows:— Our said Invention consists in improvements in the construction of stoves or 10 grates and the flues leading therefrom to the flue of the chimney, and in the construction of doors of furnaces, by which improvements the smoke that ordinarily arises from fires in stoves, grates, and furnaces is consumed or pre¬ vented. And we consume the smoke or prevent it from rising by the: admission of air in certain parts of the flues and doors, or near thereto. By 15 one of the plans we adopt, we close the opening from the grate or stove into the flue of the chimney, as now generally in use, and we make the draught (by means of proper openings for that purpose) to pass back of the grate into the flue of the chimney, and air is admitted through a plate placed opposite to and at a little distance from that part of the grate through which the draught 20 passes into the flue of the chimney, so that such air comes in contact with the gases arising from the fuel in the grate, and causes such gases to ignite, and are thus consumed. By another plan, the draught is made to pass under the