Specification of Walter Kendrick and Job Wooldridge : preventing smoke in furnaces.

  • Walter Kendrick
Date:
1868
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Walter Kendrick and Job Wooldridge : preventing smoke in furnaces. Source: Wellcome Collection.

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    2 A.D. 1867.—N° 3700. Provisional Specification. Kendrick $ Wooldridge's Improvements in Preventing Smoke in Parnares. thereby either exposing or covering the >ad tiame of bars or plates. When the said flap or thin door is depressed no air enters through the chamber or box into the furnace, but when the said fhip or thin door is raised upon its hinge more or less a greater or less quantity of air pusses through the frame of horizontal bars and between the vertical corrugated plates into the furnace. 5 Connected with the said flap or thin door is a collapsible vessel somewhat similar to a circular bellows, the said flap and collapsible vessel being connected together by means of a cord or chain passing over pulleys. When the said collapsible vessel is filled with air the flap nr thin door is raised into a nearly horizontal position, and as the said vessel einp ies itself of air through a small 10 aperture ma le for that purpose the flap or thin, door gradually falls and covers the frame of bars described. In using the apparatus the stoker after firing and closing the furnace door fills the collapsible ves-el with air, thereby raising the flap or thin door described ; a large quantity of atmospheric air is thereby permitted to pass 15 through the frame of bars and between the vertical corrugated plates, which air is heated by the said plates and combines with or burns the gases and volatile matter driven off from the fuel when it is first thrown upon the fire. By the gradual fall of the flap or thin door the supply of air is gradually cut off, and the formation of smoke after firing theieby wholly or in part 20 prevented. In order more effectually to prevent the formation of smoke we prefer to use in combination with the apparatus described a hollow briJge, through which jets of air are admitted to the furnace. The arrangement of corrugated plates d scribed may a’so be applied to the 25 hollow bridge, so that the air supplied at the bridge may pass between and become heated by the said plates. The arrangement we have described applied to the door of the furnace may be applied to ether parts of the furnace with the same or nearly the same effect. 30 LONDON: Printed by George Edward Eyre and William Spottiswoode, Printers to the Queen’s must Excellent Majesty. l&tiS.
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