Specification of Zachariah Barratt : apparatus for sweeping, ventilating and extinguishing fires in chimneys.

  • Barratt, Zachariah.
Date:
1854
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Zachariah Barratt : apparatus for sweeping, ventilating and extinguishing fires in chimneys. Source: Wellcome Collection.

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    Barratt's Tmpts. in Apparatus for Sweeping and Ventilating Chimneys. Patent, as in and by tbe same, reference being thereto bad, will more fully appear. HOW KHOW YE, that in compliance with the said proviso, I, the said Zachariah Barratt, do hereby describe and ascertain the nature of my said Invention, and in what manner the same is to be performed, by the Plan or 5 Drawing in the margin of these Presents and the following description thereof, that is to say: — I make a tube of sheet iron, tin, or copper, square at one end, to fit chimnies of different sizes, with a flanch of about two inches, more or less, to build on chimney; the other end of the tube to be round, about ten inches 10 diameter, more or less; the tube may be about twenty inches high, more or less, to which tube I rivet about seven standards, more or less, about seven inches high, made of iron or copper wire, set off about half an inch; on the top of standards I rivet another tube of iron, tin, or copper, about eleven inches diameter, and about twelve inches high; the distance between the two 15 tubes being the space intended for the escape of the smoke. In this tube, about six inches high, I rivet three pieces or stubs of iron for a circular plate of iron, tin, or copper, to lay on; in which plate I cut an oblong square hole, over which I rivet or screw a frame and pulley for cord or chain to work or act upon in the operation of sweeping the chimney; at the top of the upper tube 20 I fit a cover with rim to take off. In the centre of cover I cut out a hole about two inches and half in diameter for oil box to pass through, about two inches above the surface of the cover; on the under . side of cover I fix or rivet a supporter, to project down about two inches, more or less, with a hole in centre to admit a screw from the bottom of oil box to pass through, 25 with screw nut under the supporter to screw oil box tight to the supporter. In cases where chimnies do not smoke I do not attach the curtain or external tube, nor the oil box in the cover of the inner upper tube. For the curtain or external tube for curing smoky chimneys, I make a tube of iron, copper, or tin, of about fourteen inches diameter and about twenty-three 30 inches high, more or less, on the top of which I fold on a cover; in the centre of cover I rivet a strong piece of iron with a hole m the centre of both plate and cover for spindle to pass through up to the collar, which collar is to support this tube or curtain; on the top of cover I put a piece of loose iron or copper, cast or wrought, about five inches diameter, and raised up to the 35 centre, about one inch, being the segment of a sphere with a hole in the centre, the size of spindle, for the screw part of spindle, to pass through. I then attach a nut of copper or iron to spindle to screw down curtain or tube; in the bottom of tube or curtain I fold a wire inside to strengthen the