Specification of Antoine Pauwels and Vincent Dubochet : manufacture of coke and gas, &c.

  • Pauwels, Antoine.
Date:
1857
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Antoine Pauwels and Vincent Dubochet : manufacture of coke and gas, &c. Source: Wellcome Collection.

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    Pauwels $ Dubochefs Improvements in the Production of Coke and Gas. NOW KNOW YE, that in compliance with the said proviso, we, the said Antoine Pauwels and Vincent Dubochet, do hereby declare that the nature of our said Invention, and the manner in which the same is to be performed, is particularly described and ascertained in and by the following description thereof, reference being had to the Drawings hereunto annexed, and to the 5 letters and figures marked thereon (that is to say) :—• Before proceeding to the description of our Invention, we would observe that coke for the smelting of metals and the generation of steam in locomotives, has hitherto been obtained by the carbonization of pit coal, in ovens specially constructed for that purpose. This method of producing coke usually entails 10 the loss of all the gaseous products, and many attempts have been made to obtain in their natural state the gaseous products generated in ordinary coke ovens, by protecting the gases from the action of the fire, but no oven has yet been devised capable of practically effecting the desired object, the apparatus hitherto employed being either incomplete or insufficient for the purpose. It 15 has also hitherto been found practically impossible to protect the interior of the ovens from the pressure of the atmosphere, and the gas circulating in the flues or passages under the bed of the furnace being submitted either to excessive or insufficient pressure, according to the difference in the levels and other well- known circumstances, a loss of gas has been occasioned which it is important 20 to prevent. The present Invention has for its object, first, to extract from pit coal a gas fit for illumination, and to produce at the same time a quality of coke possessing all the properties requisite for smelting metals, and generating steam in locomotives; second, to regulate according to circumstances the pressure of 25 the gas in the passages, so as to render the loss of gas as small as possible. These various results are obtained by means of two distinct apparatus, (viz1) first, a pyrotechnic apparatus with its extractor, and second, a moderator. The pyrotechnic apparatus is constructed of bricks and cast and wrought iron; it is furnished with fireplaces for producing the necessary heat, by the combus- 30 tion of coal, coke or other combustible, and has various flues for the circulation of the heat, with a peculiarly constructed heat magazine; and lastly, is furnished with divers apparatus, some serving as conductors for the gaseous products, and the others serving either permanently or at intervals to isolate the distilling apparatus, properly so called, from the others. 35 The complete apparatus, as shewn in Figure 1, Sheet I., in front and plan views, presents the aspect of a rectangular cube having an empty space in its centre, the capacity of which occupies about one-fifth of the whole apparatus. We do not however confine ourselves to these proportions, although we