Specification of James Blackwell : evaporating furnaces.

  • Blackwell, James.
Date:
1855
Catalogue details

Licence: Public Domain Mark

Credit: Specification of James Blackwell : evaporating furnaces. Source: Wellcome Collection.

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    Blackwell's Improvements in Evaporating Furnaces. been well got up, and the walls of the furnace have become thoroughly heated, the coking keeps so ahead of the consumption of fuel in the fireplace that there ceases to be any discharge of crude fuel into the fire, and only a colour¬ less or imperceptible vapour is emitted from the chimney. The whole or nearly 5 the whole of the combustible matters in the fuel are thus turned to profitable account, and a saving in fuel is the result much exceeding (I believe) any which has been hitherto effected. And having now described the nature of my said Invention, and in what manner the same is to be performed, I declare that what I claim as my Invent 10 tion is the constructing of evaporating furnaces with an ante-chamber for the preparatory coking or carbonizing of the fuel, and open air holes or passages, placed and arranged as before described. In witness whereof, I, the said James Blackwell, have hereunto set my hand and seal, this Twenty-eighth day of July, in the year of our 15 , Lord One thousand eight hundred and forty-eight. JAMES (l.s.) BLACKWELL. AND BE IT REMEMBERED, that on the Twenty-eighth day of July, in the year of our Lord 1848, the aforesaid James Blackwell came before our said Lady the Queen in Her Chancery, and acknowledged the Specification 20 aforesaid, and all and every thing therein contained and specified, in form above written. And also the Specification aforesaid was stamped according to the tenor of the Statute made for that purpose. Enrolled the Second day of August, in the year of our Lord One thou¬ sand eight hundred and forty-eight. Printed by George Edward Eyre and William Spottiswoode, Printers to the Queen’s most Excellent Majesty. 1855. Jefferson.