Specification of Bryan Higgins : kiln, or apparatus for heating air.

  • Higgins, Bryan.
Date:
1854
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Bryan Higgins : kiln, or apparatus for heating air. Source: Wellcome Collection.

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    Higgins Improved Kiln, or Apparatus for Heating Air. flue E. When the course of this metallic tube is horizontal, as the Figure represents, or nearly horizontal, it is expedient that there should be a small opening near the ground into the upright flue E, in order that a draught may easily be made in this upright flue by burning in it a few chips or the 5 like. When this draught is attained the opening is to be closely stopped, and then there will be a competent draught from a fire recently lighted in the stove. When the draught becomes quicker than is necessary it may be moderated to any required degree by removing a part or the whole of the stopper to cool the upright flue by the admission of cold air. The deeply 10 shaded narrow bordering on each side of the dotted flue tube and of the dotted stove shews the course and width of a mason channel, in the wider part of which the stove stands, and in the remainder of which the flue tube runs near the center of the height and width of its proper part of the mason channel. The same bordering also shews the extent with which thin iron 15 plates or slates or the like are placed to cover in the mason channel closely by the aid of luting from the point b, to the whole extent of the mason channel in the course b,i,ic,n. The break in the shading of the house Avail at ra, o, is to shew that the mason channel is continued thro’ it with the Avhole area of this mason channel for the free admission of air in the course 20 of the metallic flue tube. The continuation of the described bordering fron n to o, is to shew that the thin plate iron covering is to be luted here on a flat bar laid across the mason channel, and touching the wall and luted to it. If the plate iron covering be made to terminate at the inside of the kiln Avail not far from n, o, it is to be luted there in the last-mentioned manner or to the 25 like effect. BetAveen G and n is a break in the shading to shew the width and place of an opening by which a workman may have access for the purpose of cleaning the flue tubes. At all other times this opening is to be closely stopped with masonry; such an opening will serve equally well if made at the other end of the kiln. Figure 2 is intended to shew the cleAration of 30 parts at or near the central vertical section of the Avhole kiln. The shading A, B, and C, D, represents the end Avails of the house, and the deeper shading F, F, and G, H, is to shew the end walls of the kiln, of which end walls A, I, is the ground line. The dotted lines a, b, and a, c, shew a part of the metallic flue tube from the elboAv at a to the juncture at b, c, with the 35 cast iron stove c, d, e,f,g, /*, b. The dotted lines which run horizontally out- Avards from g and /, and Avhich define a break in the shading there, sheAv the course of the doorway thro' the walls, but the width of this doorway Aviil Aary with the thickness of the Avails, and with the quality of the fuel; the aperture between d, and e, shews the length of the fire-place near the grating, but sheAvs