Specification of James Thompson and Frederick Altree : heating ovens.

  • Thompson, James, 1947-
Date:
1857
Catalogue details

Licence: Public Domain Mark

Credit: Specification of James Thompson and Frederick Altree : heating ovens. Source: Wellcome Collection.

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    Thompson § Altree s Improvements in Apparatus for Heating Ovens. is to be performed, and to cause tbe same to be enrolled in Iler Majesty s High Court of Chancery within six calendar months next and immediately after the date of the said recited Letters Patent, as in and by the same, reference being thereunto had, will more fully and at large appear. HOW KNOW YE, that in compliance with the said proviso, I, the said 5 Frederick Altree do hereby declare that the nature of the said Invention, and the manner in which the same is to be performed, are described and ascer¬ tained by the Drawing in the margin hereof, and the words following, that is to say:— 1 declare and describe the nature of my aforesaid Invention, and the 10 manner in which I perform the same, to be as follows: The annexed Drawing represents a sectional elevation of an ordinary baker s oven, to be heated with gas instead of coal, &c. ; the common coal gas is to be conveyed from the main through the pipe a, a, to or near the extremity or further end of such oven, where it is to be ignited and consumed from a fan-tail or any 15 other description of burner affixed the feed pipe «, a; this pipe passes through the centre of another of suitable capacity or diameter marked h, 5, which is to supply the requisite quantity or volume of atmospheric air for the perfect com¬ bustion of the gas so employed, and such supply of air may be regulated by a register or valve at the end c, c, where the air is admitted ; the heated gases arising from such combustion are to be retained in the said oven by a damper o in the front (as usual) until all the available caloric has been communicated or absorbed by the brickwork, &c., of the oven 5 when the proper temperature has been acquired, the pipes a and h are to be withdrawn, the gas pipe a being connected with the mains by an union joint for that purpose. In certain 25 localities where common coal gas is not available, I employ naptha, or any other combustible fluid applied in efficient lamps or burners for this purpose. And I claim as my Invention the heating of ovens, &c., internally from the caloric evolved by the combustion of gases. In witness whereof, I, the said Frederick Altree, have hereunto set my 30 hand and seal, this Fifth day of June, in the year of our Lord One thousand eight hundred and fifty-two. FREDERICK (l,s.) ALTREE,