IMPROVEMENTS IN APPARATUS FOR CURING SMOKY CHIMNEYS
Year: 1863

page_text: LETTERS PATENT to Charles Butler Clough, of Llwyn Offa, Mold, in
the County of Flint, Esquire, for the Invention of "IMPROVEMENTS IN
APPARATUS FOR CURING SMOKY CHIMNEYS."
PROVISIONAL SPECIFICATION left by the said Charles Butler Clough at
the Office of the Commissioners of Patents, with his Petition, on the
3rd January 1863.
I, CHARLES BUTLER CLOUGH, of Llwyn Offa, Mold, in the County of Flint,
Esquire, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN APPARATUS FOR CURING SMOKY CHIMNEYS," to be as follows:―
This Invention relates to a peculiar construction and arrangement of
chimney top, and consists in adapting to the outside of any ordinary earthen-
ware or other chimney pot an outside covering or casing of zinc or other
> suitable metal or material surrounding such pot, and leaving an annular space
between the pot and the outer casing, which should extend to the top of the
pot. At the base of the outer casing and on diametrically opposite sides
thereof I form two apertures, and place two partitions in the space between the
pot and the casing diametrically opposite each other, but at right angles to
the openings. The wind entering one of these openings is prevented from
escaping through the opposite opening by the partitions above mentioned, and

page_text: consequently an upward current of air is carried outside the pot on the wind-
ward side of the chimney. Two openings and partitions will be found to
answer, but in some cases three or more openings with partitions between
them may be employed, so as to catch the wind from every quarter.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Charles Butler Clough in the Great Seal Patent Office
on the 3rd July 1863.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHARLES
BUTLER CLOUGH, of Llwyn Offa, Mould, in the County of Flint, Esquire,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Third day of January, in the year of our Lord
One thousand eight hundred and sixty-three, in the twenty-sixth year of Her
reign, lid, for Herself, Her heirs and successors, give and grant unto me,
the said Charles Butler Clough, Her special license that I, the said Charles
Butler Clough, my executors, administrators, and assigns, or such others as
I, the said Charles Butler Clough, executors, administrators, or assigns;
should at any time agree with, and no others, from time to time and at
all times thereafter during the term therein expressed, should and lawfully
might make, use, exercise, and vend, within the United Kingdom of Great
Britain and Ireland, the Channel Islands, and Isle of Man, an Invention for
"IMPROVEMENTS IN APPARATUS FOR CURING SMOKEY CHIMNEYS," upon the con-
dition (amongst others) that I, the said Charles Butler Clough, my executors
or administrators, by an instrument in writing under my hand and seal, or
under the hand and seal of one of them, should particularly describe and
ascertain the nature of the said Invention, and in what manner the same was
to be performed, and cause the same to be filed in the Great Seal Patent
Office within six calendar months next and immediately after the date of
the said Letters Patent.
NOW KNOW YE, that I, the said Charles Butler Clough, do hereby
declare the nature of my said 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 Drawings, and
to the letters and figures marked thereon, that is to say :-
My said Invention relates to a peculiar construction and arrangement of
chimney top, and consists in adapting to the outside of any ordinary earthen-

page_text: .ware or other chimney pot a covering or casing of zinc or other suitable metal
or material surrounding such pot, and leaving an annular space between the
pot and the outer casing, which should extend to the top of the pot. At the
base of the casing and on diametrically opposite sides thereof I form two
vertical apertures, and I divide the annular space by placing partitions in the
space between the pot and the casing midway between the openings. The
wind entering one of these openings is prevented from escaping through the
opposite opening by the partitions above mentioned, and consequently an
upward current of air is carried outside the pot on the windward side of the
chimney. Two openings and partitions will be found to answer, but in some
cases three or more openings with partitions between them may be employed,
so as to catch the wind from every quarter.
And in order that my said Invention may be fully understood, I shall now
proceed more particularly to describe the same, and for that purpose I shall
refer to the Figures on the Sheet of Drawings hereunto annexed, the same
letters of reference indicating corresponding parts in both Figures..
Figure 1 of the Drawings represents a perspective elevation of the improved
chimney pot windguard as mounted upon a chimney, and Figure 2 is a
sectional plan of the same.
A is the ordinary earthenware or other chimney pot, which is enclosed in
the outer casing B, of zinc or other material, an annular space C being left
between the interior of the casing B and the exterior of the pot A; N, S, are
two partitions formed on the interior of the casing B, on diametrically opposite
sides thereof, or nearly so, and of a width sufficient to extend across the space
between the pot and the casing. These partitions extend from the bottom
nearly to the top of the casing and pot. At the bottom of the casing are
formed two apertures E, W, on diametrically opposite sides of the casing, or
nearly so, in a position at or about right angles to the partitions N, S. The
positions of the apertures being, say, east and west, whilst those of the
partitions are north and south. They are, however, disposed in various
quarters, according to the direction of the prevailing gales in the district where
the pot is employed, and any desired number of apertures and partitions may
be used. The wind enters one or other of these openings at the base, and is
then directed upwards in a vertical current between the casing and the pot,
and escapes at the top on the windward side, as shewn by the arrows, this
upward current serving as a protection against the action of the wind on the
mouth of the chimney pot.
Having now described and particularly ascertained the nature of my said
Invention, and the manner in which the same is or may be used or carried

page_text: into effect, I would observe in conclusion, that what I consider to be novel and
original, and therefore claim as the Invention secured to me by the herein-
before in part recited Letters Patent, is, the combination with any ordinary
chimney pot of an outer casing provided with internal partitions up the sides,
and apertures in the lower portion or base thereof, substantially in the
'manner and for the purpose herein-before described and illustrated by the
Drawings.
In witness whereof I, the said Charles Butler Clough, have hereunto
set my hand and seal, this Twenty-fourth day of June, One thousand
eight hundred and sixty-three.
C. BUTLER CLOUGH. (L.S.)
C. BUTLER CLOUGH. (L.S.)