IMPROVEMENTS IN THE CONSTRUCTION OF FURNACES TO EFFECT CONSUMPTION OF SMOKE AND SAVING OF FUEL
Year: 1870

page_text: LETTERS PATENT to George Jones, of No., 20, Beeton's Terrace,
Millwall, Poplar, in the County of Middlesex, Boiler Maker, for
the Invention of "IMPROVEMENTS IN THE CONSTRUCTION OF FURNACES TO
EFFECT CONSUMPTION OF SMOKE AND SAVING OF FUEL."

page_text: 4. A Venetian slide door is fixed between the furnace door and the
ash-pit door to regulate draught under the fire-bars.
5. Perforated iron plates are fixed in the furnace at intervals (the
number of such plates varying according to the length of the furnace) to
promote consumption of smoke and increase the heating surface.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
-filed-by-the-said-George-Jones in the Great Seal Patent Office on
the 13th July 1870.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
JONES, of No. 20, Beeton's Terrace, Millwall, Poplar, in the County of
Middlesex, Boiler Maker, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Nineteenth day of February, in the year
of our Lord One thousand eight hundred and seventy, in the thirty-third
year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said George Jones, Her special licence that I,
the said George Jones, my executors, administrators, and assigns, or
such others as I, the said George Jones, 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 THE CONSTRUCTION OF FURNACES
TO EFFECT CONSUMPTION OF SMOKE AND SAVING OF FUEL," upon the condition
(amongst others) that I, the said George Jones, iny executors or adminis-
trators, by an instrument in writing under my, or their, or one of their
hands and scals, 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 Scal Patent Office within six..
calendar months next and immediately after the date of the said Letters a
Patent.
NOW KNOW YE, that I, the said George Jones, 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 statamant.

page_text: This Invention consists in so constructing furnaces that the smoke is
consumed and a great saving effected in the consumption of fuel. This
is accomplished in the following manner; and in order that the descrip-
tion of the Invention may be understood reference is made to the accom-
panying Drawing, the same letters referring to like parts on the
same:-
Fig. 1.
a, the furnace door, which is fixed in the ordinary way, and
is constructed so as to leave an opening at bottom bending inward to
the furnace (see section, Fig. 2) to admit air to the mouth of the same;
c, c, openings made in the front of the frame on each side of the door,
also to admit air to the mouth of the furnace in line with the furnace
door; d, a door fixed to the ash-pit to close the same; c, e, a Venetian
slide door fixed between the furnace door and the ash-pit door in order
to regulate the draught under the fire-bars. Perforated iron plates f, f,
(see plan Fig. 3,) are fixed in the furnace behind the fire-bridge at
intervals, the number of which plates vary according to length of
furnace; these plates are so constructed as to become efficient com-
bustion chambers by stopping the draught in the central part of the
furnace, causing the fire to travel close to the furnace plates, thus also
increasing the heating surface. A damper 9 (Figs. 1 and 2) is fixed on
the frame in front of the boiler in order to regulate air admitted at
mouth of furnace door and the opening each side of the same.
Having thus described my said Invention, and the mode of accom-
plishing the same, that which I claim and desire to be secured to me
by Letters Patent is that which is substantially described in the foregoing
Specification and shewn on the accompanying Drawing, or any mere
modification thereof.
In witness whereof, I, the said George Jones, have hereunto set
my hand and seal, this Thirteenth day of July, in the year of our
Lord One thousand eight hundred and seventy.
GEORGE JONES. (L.S.)