IMPROVEMENTS IN APPARATUS FOR HEATING ROOMS OR BUILDINGS
Year: 1864

page_text: LETTERS PATENT to John Grundy, of Tyldesley, in the County of Lan-
caster, Flour Dealer, for the Invention of "IMPROVEMENTS IN APPARATUS
FOR HEATING ROOMS OR BUILDINGS."
Sealed the 19th May 1865, and dated the 25th November 1864.
PROVISIONAL, SPECIFICATION left by the said John Grundy at the
Office of the Commissioners of Patents, with his Petition, on the 25th
November 1864.
I, JOHN GRUNDY, of Tyldesley," in the County of Lancaster, Flour Dealer,
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN
APPARATUS FOR HEATING ROOMS OR BUILDINGS," to be as follows:-
I employ a stove having at the top part a pipe connected by a flue to the
chimney, and place the said stove in a chamber surrounded by brickwork,
earthenware, or other suitable material, allowing a space between the stove
and wall or walls of the chamber.. Near the bottom and top of the chamber
I make apertures, the lower to allow the entrance of cold air and the upper
the egress of heated air, and at the top of the chamber I make another
aperture communicating with other apartments or with the atmosphere to
take off the excess.

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fifth day of November, in the year of our
Lord One thousand eight hundred and sixty-four, in the twenty-eighth year
of Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said John Grundy, Her special license that I, the said John
Grundy, my executors, administrators, and assigns, or such others as I,
the said John Grundy, 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 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 HEATING ROOMS OR BUILDINGS," upon the
condition (amongst others) that I, the said John Grundy, my executors or
administrators, by an instrument in writing under my, or their, or one of their
hands and seals, 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 John Grundy, do hereby declare the
nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement (that is to say) :-
I employ a stove having at the top a pipe or flue communicating with a
chimney, and place the stove in a chamber surrounded by brickwork, earthen-
ware, or other suitable material so as to allow a space between the walls and
the stove.
Near the bottom of the chamber there are apertures in the walls
for the entrance of cold air to be heated by the stove when the fuel is in .a
state of ignition, and at the top of the chamber there are one or more pipes
for conveying the heated air to any required part of the building.
These improvements will be clearly understood by referring to the figures
and letters on the accompanying Sheet of Drawings, in which Fig. 1 is a
vertical section, and Figs. 2 and 3 front and side elevations of one arrange-
ment of my improved apparatus for heating rooms or buildings.
a represents the bed plate, fire-box, and nozzle of the stove; b, the grate
or fire-bars; c, the fire door; d, the flue or pipe leading to the chimney;
f, the chamber; g, the walls; h, the ash-pit; i, the apertures opening into
the chamber for the admission of cold air, and k the pipes for the conveyance
of the air heated by the heat of the stove, which pipes are supported at the
bottom on bars 7 built into the brickwork.

page_text: The bed plate, fire-box, and nozzle of the stove are made in one piece or
casting for the purpose of preventing any escape of smoke into the chamber
and hot air pipes, and the grate is divided into two parts which can be passed
or repassed through the nozzle. The apertures i may exist in all the walls
and be of any required size and number, and when advisable I form under-
ground passages for supplying air from the outside of the building to the
chamber. The hot air pipes k may be of any size and number, but I prefer
them to be of comparatively large diameter for enabling the heated air to
circulate through them with freedom and pass into the locality to be warmed;
and for regulating the supply of heated air, I place dampers in the hot air
pipes, and by this means I can shut off the hot air from any one or more of
the pipes, and throw the whole force of heated air into any one or more of
the remaining pipes. These arrangements enable a large volume of air to be
heated with great economy of fuel, and rooms and buildings to be efficiently
warmed without any danger of explosion or fire.
Having now described the nature and particulars of my said Invention,
and the manner in which the same is to be performed, I desire it to be under-
stood that I claim the improvements in apparatus for heating rooms or
buildings, as all such improvements are herein described and illustrated in the
accompanying Sheet of Drawings.
In witness whereof, I, the said John Grundy, have hereunto set my
hand and seal, this Twenty-third day of May, in the year of our Lord
One thousand eight hundred and sixty-five.
Signed, sealed, and delivered by the
within-named John Grundy, in the
presence of
G. SEPTIMUS HUGHES,
Patent Agent,
Manchester.
JOHN GRUNDY. (L.S.)