Improvements relating to the Prevention of Down Draught in Chimney Pots.
Year: 1889

page_text: Date of Application, 2nd Apr., 1889
Complete Specification Left, 2nd Jan., 1890-Accepted, 8th Feb., 1890
Improvements relating to the Prevention of Down Draught in
Chimney Pots.
I, RICHARD ROBERTS, of No. 65 Broad Green, near Liverpool, Lancashire, Railway
Property Inspector do hereby declare the nature of this invention to be as
follows:-
In the specification of my Invention No. 3695 of 1888 I have described and shewn
a novel device of a chimney pot the underneath portion of the top or cover whereof
is formed concave or bowl shaped with the object of causing the ascending smoke,
instead of escaping direct into the atmosphere, to impinge upon the top or cover
aforesaid and is thence diverted downwards through an intervening space between the
inside of the top or cover and the outside of the chimney pot.
Now, in accordance with my present Invention as an additional means for safe-
guarding against the contingency of down draught, which might obtain under
exceptional conditions even with the provisions made in accordance with my Invention
of prior date hereto above referred to. I proceed as follows:-That is to say :-I
dispose around the upper part of the chimney pot, at a short distance below the cover
referred to above, a suitably dish shaped annulus to serve as a preventative means
against the rebound of the wind-say for instance from a roof-resulting in the filling
or choking of the cap and interfering with the efficiency of the device in accordance
with my invention of prior date hereto, herein before referred to.
JAMES STEVENSON,
Gray's Inn Chambers, 20, High Holborn, London, W.C., Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements relating to the Prevention of Down Draught in
Chimney Pots.
I, RICHARD ROBERTS of No. 65 Broad Green, near Liverpool, Lancashire, Railway
Property Inspector, do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertained in
and by the following statement, reference being had to the accompanying drawing
wherein :-
Figure 1 is an elevation and Figure 2 a vertical section of the device constructed
according to my present invention.
In the specification of my Invention No. 3695 of 1888 I have described and shewn
a novel device of a chimney pot wherein the underneath portion of the top or cover B
is formed concave or bowl shaped with the object of causing the ascending smoke,
instead of escaping direct into the atmosphere, to impinge upon the top or cover
aforesaid and to be thence diverted downwards through an intervening space between
the inside of the top or cover B and the outside of the chimney pot A.
Now in accordance with my present Invention as an additional means for safe.
guarding against the contingency of down draught, which might obtain under
exceptional conditions even with the provisions made in accordance with my Invention
of prior date hereto above referred to, I proceed as follows:-That is to say :-I
dispose around the upper part of the chimney pot A at a short distance below the
cover B referred to above, a suitably dish shaped annulus C to serve as a preventative
means against the rebound of the wind-say for instance from a roof-resulting in
the filling or choking of the cap B and interfering with the efficiency of the device
in accordance with my invention of prior date hereto, hereinbefore referred to.
го

page_text: The chimney pot H and the cover D may be composed of the same, or different,
material, and the cover attached in position by the radial web pieces a or by other
equivalent means such as copper wire or the like.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed, I declare that what I
claim is :-
The combination with a chimney pot A having a cover B of a dished or other
shaped annulus C substantially as herein set forth and shewn and for the purpose.
specified
Dated costs way of vandal
JAMES STEVENSON,
Gray's Inn Chambers, 20, High Holborn, London, W.C., Agent for Applicant.