IMPROVEMENTS IN MEANS FOR FACILITATING THE ECONOMY OF FUEL IN STEAM BOILER AND OTHER FURNACES OR FIRE-PLACES, WHICH IMPROVEMENTS ARE ALSO APPLICABLE IN HEATING PROVISIONAL SPECIFICATION
Year: 1873

page_text: LETTERS PATENT to Ezra Milner, of Clayton, near Bradford, in the
County of York, for the Invention of “IMPROVEMENTS IN MEANS FOR
FACILITATING THE ECONOMY OF FUEL IN STEAM BOILER AND OTHER FURNACES
OR FIRE-PLACES, WHICH IMPROVEMENTS ARE ALSO APPLICABLE IN HEATING
PROVISIONAL SPECIFICATION left by the said Ezra Milner at the
Office of the Commissioners of Patents, with his Petition, on the
4th June 1873.
I, EZRA MILNER, of Clayton, near Bradford, in the County of York,
do hereby declare the nature of the said Invention for "IMPROVEMENTS
IN MEANS FOR FACILITATING THE ECONOMY OF FUEL IN STEAM BOILER AND OTHER
FURNACES OR FIRE-PLACES, WHICH IMPROVEMENTS ARE ALSO APPLICABLE IN HEATING
APARTMENTS OR OTHER PLACES," to be as follows:-
In carrying out my Invention I apply a pipe or pipes, straight or
otherwise, made of iron, or fire-clay, or other suitable material into the
chimney or other part of the flues belonging to the boiler or other

page_text: furnace or fire-place. One end of the pipe or pipes projects out of the
side of the chimney, or part of the flue to which it is fixed, into the
open air, or room, or boiler house, so as to come in contact with the free
air. The remainder of the pipe or pipes is carried along the flue or flues
leading to the front part of the boiler, or other furnace or fire-place, and
is brought out of the flue or flues, and walled air tight. Then it is
connected with a door or other cover, which is fitted loose, or otherwise
to the space in front used for the ash place, and this pipe or pipes so
connected and so placed in the flue or flues will cause the air required
for the fire or fires to be heated instead of being cold, but when a little
cold air will be of advantage I form holes in the door or the substitute
which is fitted to the ash place under the fires, and have a slot to it so
as to regulate it, and the air being so heated will cause a great saving
of fuel and less smoke, and the said hot air may be conveyed to any part
of the fire as may be required.
By one arrangement I form an open space inside the firing place
between the door and the fire-grate with a small lid or slide affixed to
this open space so as to admit the hot air in front of the fire as required.
Or, I form small holes or slots in the dead plate inside the firing place
between the door and fire-grates, and I affix a slide if required, as stated
above, or convey it from the front to any part of the fire by pipes. I
also convey the said hot air and use it for other purposes, such as
heating rooms, and mills for drying purposes, dye houses, bleach works,
and other purposes where heat is required instead of steam. When so
used the pipe or pipes are conveyed back again to the lower part of
the chimney or other shaft so as to cause a draught, and to be self-
acting.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Ezra Milner in the Great Seal Patent Office on
the 29th November 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EZRA
MILNER, of Clayton, near Bradford, in the County of York, send
greeting.
3
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fourth day of June, in the year of 3

page_text: our Lord One thousand cight hundred and seventy-three, in the thirty-
sixth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said Ezra Milner, Her special license, that
I, the said Ezra Milner, my executors, administrators, and assigns,
or such others as I, the said Ezra Milner, my executors, adminis-
trators, and assigns, should at any time agree with, and no others from
time to time and at all times thereafter during the term therein ex-
pressed, 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 MEANS FOR
FACILITATING THE ECONOMY OF FUEL IN STEAM BOILER AND OTHER FURNACES OR
FIRE-PLACES, WHICH IMPROVEMENTS ARE ALSO APPLICABLE IN HEATING APARTMENTS
OR OTHER PLACES," upon the condition (amongst others) that I, the said
Ezra Milner, 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 Ezra Milner, do hereby declare
the nature of the said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement thereof, that is to say :-
In carrying my Invention into effect I apply a pipe or pipes, straight
or otherwise, made of iron, or fire-clay, or other suitable material into the
chimney or other part of the flues belonging to the boiler, or other
furnace or fire-place. One end of the pipe or pipes projects out of the
side of the chimney or part of the flue to which it is fixed into the open
air, or room, or boiler house, so as to come in contact with the free
external air. The remainder of the pipe or pipes is carried along the
flue or flues leading to the front part of the boiler or other furnace or
fire-place, or along some part or parts of such flues, and is brought out
of the flue or flues, and walled air tight. Then the pipe or pipes are
connected with a door or other cover, which is fitted loose or otherwise
to the space in front used for the ash place, and this pipe so connected
and so placed in the flue or flues will cause the air required for the fire
or fires to be heated instead of being cold, but when a little cold air will
be of advantage such may be admitted through holes in the door or

page_text: substitute therefor, which is fitted to the ash place under the fires. The
extent of the openings in the door or doors is capable of being regulated
to regulate the quantity of air allowed to pass by means of sliding covers
and the air so heated will cause a great saving of fuel, and the production
of less smoke, and such hot air may if desired be conveyed to any part
of the fire as may be required.
By one arrangement I form an open space inside the firing place
between the door and the fire-grate with a small lid or slide affixed to
such open space so as to admit the hot air in front of the fire when
required. Or I form small holes or slots in the dead plate inside the
firing place between the door and the fire-grates, and I affix a slide
thereto for the purpose of regulation if required, as stated above, or I
convey the air from the front to any other desired part of the fire by
pipes or tubes. I also convey the said hot air and use it for other
purposes, such as heating rooms and mills for drying purposes, dye
houses, bleach works, and other purposes, where heat is required instead
of steam. When so used, the pipe or pipes are conveyed back again to
the lower part of the chimney or other shaft, so as to cause a draught
and be self-acting, or the end or ends are left open so as to admit of the
hot air flowing into the room or rooms.
Having thus described my Invention and means which I adopt in
carrying the same into effect, I would have it understood that what I
do claim is the arranging or combining air passages with steam boiler
and other furnaces or fire-places, for the supply of air, whereby economy
of fuel may be facilitated, and the application of the improvements to
the heating of apartments and other places, substantially as described.
In witness whereof, I, the said Ezra Milner, have hereunto set
my hand and seal, this Twelfth day of November, in the
year of our Lord One thousand eight hundred and seventy-
three.