Specification of Edmund Youldon : apparatus for ventilating chimneys.

  • Youldon, Edmund.
Date:
1854
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Edmund Youldon : apparatus for ventilating chimneys. Source: Wellcome Collection.

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    Yoiddons Improvements in Preventing or Curing Smoky Chimneys. Description of the Drawing. Figure 1 represents an apparatus constructed according to my improvements. Figure 2 is a vertical section thereof; Figure 3 is a transverse section thereof; and Figures 4 and 5 show detached parts of the same. In each of these Figures the same letters of reference indicate similar parts, a being the outer casing of 5 zinc or other suitable material, h, h, are openings formed for the passage of air and smoke; these openings are covered in one direction by the curved plates or wind guards c, c, the object of which will be hereafter described. d, d, are four curved vanes affixed to the axis or shaft e; these curved vanes are also affixed to the hoops or stays f, f, for the purpose of keeping them in 10 their proper positions, as shewn in the Drawing. The shaft or axis e turns in bearings at g, g, there being a box or cover to prevent the smoke or dirt getting to the point of bearing; on to the axis e is affixed a toothed wheel, which takes into and drives the pinion on the shaft li, which also turns in bearings at the points g,g, as shown in the Drawing, these bearings being supported by 15 the cross framings i within the casing a, and the upper one by the covery, for it will be seen that there is no passage for the air and smoke to pass at top other than by the openings h, h, which I prefer should be the case; on the axis h is affixed a circular fan or wheel /c, shown separately at Figure 4 ; this circular fan is constructed similarly to those used for smoke jacks and for ventilators. 20 ^ is a stop, which fills up that part of the outer casing a which is not occupied by the fan wheel k, and thus is prevented the passage of smoke, except between the vanes or spokes of the fan wheel k. Figure 5 represents a plate of zinc, which is the material I commonly use, but do not confine myself thereto, as any other suitable material may be employed. This plate of zinc has eight open- 25 ings h formed therein, whilst the part of the metal which is cut to form the opening is curved, as shown in the Drawings, and thus form wind guards to the openings, by which the wand is prevented entering such openings excepting in certain directions, by which means only about three of the openings wall be open to receive the wind, wdiilst the other openings may be said to be the tail 30 part of the mill, through which the wind that actuates the vanes d, d, will again pass off, carrying wath it any smoke wdiich may be in the upper part of the apparatus. Having thus described the various parts of the apparatus, I w^ould remark, that it wall be evident that the wand, in wdiatever direction it may blow, will be 35 entering some of the openings h, and thereby actuating the vanes c?, and cause the axis e to turn, and by the wdieel work give an encreased motion to the fan wheel k on the axis h, and the vanes being set in a proper direction will, by its