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Fires improv'd: or, A new method of building chiminies, so as to prevent their smoaking ... / Made English and improved by J.T. Desaguliers. By whom is added, the manner of making coal-fires, etc.

  • Gauger, Nicolas, approximately 1680-1730
Date:
1736
Catalogue details

Licence: Public Domain Mark

Credit: Fires improv'd: or, A new method of building chiminies, so as to prevent their smoaking ... / Made English and improved by J.T. Desaguliers. By whom is added, the manner of making coal-fires, etc. Source: Wellcome Collection.

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    of the Chimney' bearing with one of its Angles R r upon the middle of the three Holes of the Pyramids, by that means dividing thofe Holes in half, its Plane S Q_/y oppofite to that Angle, will be parallel to the Squares ot the Holes that are Horizontal, and as broad as any of the Holes, that nothing may tall into them that comes down perpendicularly upon that Surface S Qj] s ; and above that Prifm may alfo be added, a Capital open at Top, equal in Length to the Prifm, and divided into feveral other little fquare truncated Pyramids, whofe Planes I H G ghi, NOPpo n below the little Pyramids, muff be open enough at Bottom to leave a Space on each Side of the Horizontal Plane of the Prifm, and long enough to go down below its Angle R r, that bears upon the firft Pyramid, to cover part of them without touching them. I fay, that Inch a Capital will wholly hinder the Wind from going into the Chimney, whatever Situation it has, and from what¬ ever Point it blows ; and the Smoke will come out freely. [Aiy. 8,9,11 •] For, 1ft, The Smoke will meet with no Stop but inclined Planes, along which it will Hide ealily, and fo go out freely. idly. The Wind which coming Side- wife blows Horizontally, will not go into the upper Pyramids, for the Reafon given , in
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