Specification of Tobias Michell : apparatus for washing and purifying the smoke and vapours arising from furnaces.

  • Michell, Tobias.
Date:
1856
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Tobias Michell : apparatus for washing and purifying the smoke and vapours arising from furnaces. Source: Wellcome Collection.

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    MichelVs Improvements in Washing and Purifying Vapours of Furnaces. affixed to each piston are secured at their other ends to a cylinder, barrel, or drum H, Figures 1, 2, and 3, with a shaft or axis having necks or pivots turning in bearings with brasses to them, which are mounted firmly upon a platform secured upon the upper ends of the cylinders F, F, as shown in those 5 Figures, and upon the said shaft or axis a toothed wheel or pinion I is affixed, as shewn in Figures 2 and 3, and by dotted lines in Figure 1, and in which a toothed rack J works backwards and forwards, and as impelled by the first moving power which actuates the machinery, and thus alternately raises and lowers the pistons. The smoke or vapours from the furnaces are brought by 10 the pipe or tube B, Figures 1 and 3, which descends through the closely fitted cover of the vessel A, below the surface of the water or other fluid contained in the said vessel, where it is diffused or spread through the said water by means of a number of slender rods of wood or metal, which are affixed underneath the end of the said pipe or tube, they being mounted upon a disc 15 or support which surrounds the aperture of the pipe. The smoke or vapours being thus once washed are conveyed through the pipe C, D, into a chamber E, of the valve box, from whence they pass through one of the valves K, K, shewn in Figures 2 and 4, into one of the pump cylinders F, whilst the piston is rising, and also into the other cylinder on its piston being raised. When 20 the pistons are depressed the washed smoke or vapours are expelled through the valves L, L, and are either delivered into the external air or again propelled through other waters or fluids repeatedly, as their impurities may require. During the passage of the smoke or vapours through the water or other fluids they may also be compelled to pass underneath a series of 25 horizontal combs or brushes M, M, M, Figures 5 and 6, which dip into the water or other fluids in the manner shown in ligure 5, which is a longitudinal section of a metal pipe or trough, and a transverse or cross section of which is shewn in Figure 6, and thereby become further purified, or they may be passed through other apparatus similar to that shewn in Figure 7, which 30 is provided with a convenience whereby a specimen of the state of the process may be withdrawn occasionally for examination through the lower aperture of a vessel N, which is fitted with a closely shutting pan or dish O, nd which is kept shut by means of the following contrivance'The dish 0 is hung to a bent lever P, which is jointed to an arm affixed upon the 35 vessel N. To the outer end of the bent lever P another bent lever Q, is connected by means of a pin or stud which slides within a groove formed in one branch of the bent lever P; the bent lever Q has a hole made through its angular part, which is fitted upon a stud or pin affixed in the solid part R,