Improvements in or relating to Chimney Pots.
Year: 1895

page_text: Date of Application, 5th Mar., 1895-Accepted, 8th Apr.,
1895
1
Improvements in or relating to Chimney Pots.
1, RICHARD VARLEY HORSFALL, of Slaithwaite, in the County of Yorkshire,
Gentleman, 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 :-
This invention relates to chimney pots, caps, or cowls: The objects of this
invention are to prevent the smoke being driven back into the chimney by down
draught, and to cause an increased current of air to pass up the flue: f attain
these objects by the means hereinafter described, and as shown in the accompanying
sheet of drawings, in which Figs. 1, 2 and 3 represent side views, and Fig. 4 a plan
of a chimney pot constructed for use in combination with a cap or cowl as
represented in Figs. 5, 6 and 7, which are respectively a side view and vertical
sections of said cap or cowl: Figs. 8 and 9 are vertical sections of the combination
of the aforesaid chimney pot, and the cap or cowl, said combination constituting
my invention: Figs. 10 and 11 are part sectional plans of the same, drawn through
line B, B.
In the drawings similar letters refer to similar parts.
In this invention I construct a chimney pot as a represented by Figs. 1 to 4, or of
like form, said chimney pot being either plain as in Fig. 1, or with distance pieces
as band b', or c and c¹: I construct a cap or cowl as d represented by Figs. 5 to 7.
with an internal diameter at the base larger than the external diameter of the
aforesaid chimney pot a, but said internal diameter corresponding with the width
across the projections from A to A Fig. 4, if employed in combination with a
chimney pot as represented in either Figs. 2 or 3. I form apertures as e around
the base of said cap or cowl, and said cap or cowl may have an angular base as d¹,
in order to cement to the brickwork of the chimney: If the aforesaid cap or cowl
is employed in combination with a chimney pot as represented by either Figs. 2
or 3, the chimney pot may be cemented to the brickwork of the chimney, and the
cap or cowl d placed thereon, when it will be retained in position by the distance
pieces borc and c'.
In applying my invention, the chimney pot a is placed in position on the
brickwork of the chimney, to which it may be secured by mortar or by cement,
and the cap or cowl is placed thereon: the smoke and hot gases will pass up the
flue, and through the chimney pot a, and the upper portion of the cover d: The
heated air ascending from the chimney will cause air to be drawn in through
the apertures e formed in the base of the cover d, which will pass up the space f
between the chimney pot a and the cover d, entering the upper portion of the
cover d when it will pass out with the waste vapours from the chimney, and by
these means prevent down draught, and the smoke from being driven back into the
chimney.
The hereinbefore described combined chimney pot and cap, cowl, or cover may
be constructed from fireclay or other material: I do not confine myself to the
circular formation of either the chimney pot or the cap or cover as shown on the
drawings, as the same may be constructed of a rectangular or like form without
departing from the nature of my invention, but,
Having now particularly described and ascertained the nature of this my said
invention, and in what manner the same is to be performed, I declare that what I
claim is :-
1st. In combination with a chimney pot such as a, the use of a cap, cowl, or

page_text: cover as d that is constructed with apertures around the base and placed so as to
enclose said chimney pot and form an air space between the chimney pot and the
cap, cowl, or cover in the manner and for the purpose substantially as hereinbefore
described.
2nd. A combined chimney pot and cap, cowl, or cover, constructed in the
manner and for the purpose substantially as hereinbefore described.
Dad him and dot of March 1805
THOMAS PRESCOTT,
53, Arcade Chambers, St. Mary's Gate, Manchester,
Agent for Applicant.
THOMAS PRESCOTT,
53, Arcade Chambers, St. Mary's Gate, Manchester,
Agent for Applicant.