IMPROVEMENTS IN WARMING AND VENTILATING ROOMS AND BUILDINGS
Year: 1853

page_text: LETTERS PATENT to Edward Langdon Bryan, of Hoxton, in the
County of Middlesex, for the Invention of "IMPROVEMENTS IN
WARMING AND VENTILATING ROOMS AND BUILDINGS."
Sealed the 31st May 1853, and dated the 7th April 1853.
PROVISIONAL SPECIFICATION left by the said. Edward Langdon
Bryan at the Office of the Commissioners of Patents, with his
Petition, on the 7th April 1853.
I, EDWARD LANGDON BRYAN, of Hoxton, in the County of Middlesex,
do hereby declare the nature of the said Invention for "IMPROVEMENTS
IN WARMING AND VENTILATING ROOMS AND BUILDINGS" to be as follows:-
This Invention consists of forming the lower part of a chimney into
an air chamber, by the simple addition of an iron plate separating it from
the upper part, and having a smoke pipe passing through it and con-
nected with the fire grate. The said chamber to be formed in the
following manner, viz. its back and sides by the back wall and side
walls of the chimney itself, its front by the back surface of the stove or
grate, its lower side or bottom by the hearthstone, and its upper side or
roof by the iron plate above mentioned. The said chamber to be

page_text: connected by an air shaft with the outer air, and with the apartment
by a long aperture between the top edge of the front of the grate and
the back of the chimney piece; the stove and iron plate being both
moveable, for the purpose of cleansing the air chamber or sweeping the
chimney, and the chamber may be readily converted into a ventilating
chamber to draw a large volume of fresh air into a room.
The Invention consists of a novel combination whereby a large air
chamber is formed in a new and useful manner out of parts and surfaces
not hitherto used in the same manner
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Edward Langdon Bryan, in the Great Seal
Patent Office, on the 7th October 1853.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,
EDWARD LANGDON BRYAN, of Hoxton, in the County of Middlesex,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Seventh day of April, in the year
of our Lord One thousand eight hundred and fifty-three, in the six-
teenth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Edward Langdon Bryan, Her
special licence that I, the said Edward Langdon Bryan, my executors,
administrators, and assigns, or such others as I, the said Edward
Langdon Bryan, my executors, administrators, and 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 law-
fully 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 WARMING AND VENTILATING ROOMS
AND BUILDINGS," upon the condition (amongst others) that I, the said
Edward Langdon Bryan, by an instrument in writing under my
hand and seal, should particularly describe and ascertain the nature
of the said Invention, and in what manner the same was to be per-
formed, and cause the same to be filed in the Great Seal Patent Office

page_text: within six calendar months next and immediately after the date of the
said Letters Patent.
NOW KNOW YE, that I, the said Edward Langdon Bryan, do
hereby declare the nature of the said Invention, and in what manner
the same is to be performed, to be particularly described and ascer-
tained in and by the following statement thereof, (that is to say):
This Invention consists of forming the lower part of a chimney into
an air chamber, by the simple addition of an iron plate separating it
from the upper part, and having a smoke pipe passing through it and
connected with the fire grate. The said chamber to be formed in the
following manner, viz.: its back and sides by the back wall and side
walls of the chimney itself, its front by the back surface of the stove or
grate, its lower side or bottom by the hearthstone, and its upper side
or roof by the iron plate above mentioned, the said chamber to be
connected by an air shaft with the outer air, and with the apartment
by a long aperture between the top edge of the front of the grate and
the back of the chimney piece.
The stove and iron plate being both moveable, for the purpose of
cleansing the air chamber or sweeping the chimney, and the chamber
may be readily converted into a ventilating chamber to draw a large
volume of fresh air into a room.
The Invention consists of a novel combination whereby a large air
chamber is formed in a new (and useful manner) out of parts and
surfaces not hitherto used in the same manner.
Having thus stated the nature of my said Invention, I will proceed
to describe the manner of performing the same.
DESCRIPTION OF THE DRAWING.
Figures 1, and 2, shew two transverse sections of fire places arranged
and combined according to my Invention. The two arrangements or
combinations differ somewhat in the details, but one alike in the chief
features of the construction. In Figure 1, the entrance into the
chimney is closed by means of the plate a, excepting where the smoke
pipe or flue b, from the stove passes into the chimney through the
plate a; by this arrangement it will be seen that recess or opening at

page_text: the lower part of the chimney where the stove is set is formed into an
air chamber, within which the stove is set, as shewn; the air contained
in chamber c, c, having free access into the room or building over the
part of the stove, as is indicated by the arrows. The chamber c, is
supplied with air from the exterior of the building by a suitable air
trunk, and air from the room or building may also pass into the air
chamber c, c; and when such is desired to be the case, the skirting may
be made hollow, and communicate with a cornice by suitable air
channels, the cornice being hollow and having opening into the room,
or by other convenient arrangements. The stove is made to move on
a hinge at d, in order to facilitate the cleaning out of the air chamber,
the stove being laid down on the floor when the cleaning is to take
place.
In Figure 2, a flue is constructed from the opening 6, in the stove
into the chimney, so as to close the air chamber. In other respects the
description above given in respect to Figure 1, is applicable to Figure 2.
Having thus described the nature of my said Invention, and the
manner of performing the same, I would have it understood that I do
not confine myself to the details as herein shewn and described, nor do
I claim any of the parts separately. And I would remark that in some
cases I enclose the fronts of the stoves with sliding and glazed sashes.
But what I claim is, the combination and arrangement of parts herein
described for warming and ventilating rooms and buildings.
In witness whereof, I, the said Edward Langdon Bryan, have
hereunto set my hand and seal, this Seventh day of October,
in the year of our Lord One thousand eight hundred and fifty-
E. L. BRYAN.
Witness, J. G. TONGUE.