A NEW OR IMPROVED OVEN OR KILN, TO BE USED IN THE MANUFACTURE OF COKE AND POTTERY, AND FOR HEATING And Drying geNERALLY
Year: 1856

page_text: LETTERS PATENT to Charles Jarvis, of Birmingham, in the County of
Warwick, Ironfounder, and Thomas Doykin Clare, of Birmingham afore-
said, Mineral Merchant, for the Invention of "A NEW OR IMPROVED
OVEN OR KILN, TO BE USED IN THE MANUFACTURE OF COKE AND POTTERY, AND
FOR HEATING And Drying geNERALLY"
Sealed the 4th July 1856, and dated the 7th January 1856.
PROVISIONAL SPECIFICATION left by the said Charles Jarvis and Thomas
Deykin Clare at the Office of the Commissioners of Patents, with their
Petition, on the 7th January 1856.
WC, CHARLES JARVIS, of Birmingham, in the County of Warwick, Iron-
founder, and THOMAS DEYKIN CLARE, of Birmingham aforesaid, Mineral
Merchant, do hereby declare the nature of the said Invention for "A NEW
OR IMPROVED OVEN OR KILN, TO BE USED IN THE MANUFACTURE OF COKE AND
POTTERY, AND FOR HEATING AND DRYING GENERALLY," to be as follows:-
Our Invention consists of an oven or kiln constructed in the following
manner: We build a dome, on the centre of the floor of which we place a
furnace or fire-place, the said furnace or fire-place being fed with fuel from
the top, and supplied with air by a flue underneath. From the furnace or
fire-place flues pass horizontally to the exterior of the dome in the direction

page_text: of radii; the said flucs afterwards rise up the sides of the dome, and join
together near the top of the said dome. The flue from this dome passes into
a second dome, constructed in the same manner as the first, the heated air
from the first dome favouring the combustion in the second. Any number
of domes may be connected together in the manner described, and the fire-
places in the several domies after the first may be used or not, according as a
greater or less heat is required. Our improved oven or kiln may consist of
any desired number of tlie said domes or chambers. We prefer to make or
line the flucs with iron.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Charles Jarvis and Thomas Deykin Clare in the Great Seal
Patent Office on the 7th July 1856.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, CHARLES
JARVIS, of Birmingham, in the County of Warwick, Ironfounder, and THOMAS
DEYKIN CLARE, of Birmingham aforesaid, Mineral Merchant, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Seventh day of January, in the year of our Lord
One thousand eight hundred and fifty-six, in the nineteenth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto us, the said
Charles Jarvis and Thomas Deykin Clare, Her special licence that we, the
said Charles Jarvis and Thomas Deykin Clare, our executors, administrators,
and assigns, or such others as we, the said Charles Jarvis and Thomas Deykin
Clare, our executors, administrators, and assigns, should at any time agree
with, and no others, from time to time and at all tinies 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 "A NEW OR IMPROVED OVEN OR
KILN, TO BE USED IN THE MANUFACTURE OF COKE AND POTTERY, AND FOR HEATING
AND DRYING GENERALLY," upon the condition (amongst others) that we, the
said Charles Jarvis and Thomas Deykin Clare, our executors or adminis-
rators, by an instrument in writing under our or their hands and seals, or
under the hand and seal of one of us or them, should particularly describo
and ascertain the nature of the said Invention, and in what manner the
was to be performed, and cause the sanie to be filed in the Great
Seal Patent Office within six calendar months next and immediately after
the date of the said Letters Patent.

page_text: NOW KNOW YE, that I, the said Charles Jarvis, do hereby declare the
nature of the 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 thereof, that is to say:-
Our Invention consists of the method of constructing ovens or kilns, to be
used in the manufacture of coke and pottery, and for heating and drying
generally, herein-after described, and illustrated in the accompanying Drawing.
Figure 1 represents in longitudinal section, Figure 2 in plan, and Figure 3
in transverse section, an oven or kiln constructed according to our Invention.
a, a, are fire-places; b, b, ash-pits; d, d, are domes built upon the floor e, e, of
the oven or kiln; f, f, are linings or cisterns which constitute the true ovens
or kilns, and in which the coal to be coked or the other matter to be heated
or dried is put. The said cisterns f, f, are filled from the openings 9, 9, which
said openings aro afterwards closed in any convenient manner. Air is
supplied to the fire-places from the ash-pits b, b. The heated air and flame
pass under and around the cisterns f. f, as represented by the arrows in the
Drawing, the said heated air and flame spreading laterally under the
bottom of the cisterns f, f. by means of the lateral flues h (see Figure 3).
The beated air and flame are thus brought in contact with all sides of tho
cisterns ff. The heated air and flame from one of the kilns or ovens pass
into the adjoining kiln or oven, as will be understood by reference to Figure 1,
and from thence pass out by the chimney or flue i. Instead of the two kilns
or ovens represented, any number may be joined together; the heated air and
flame passing from the first to the second, from the second to the third, and
and so on through the whole series. Where we join several kilns or ovens
together, we do not always put fire in all the fire-places a, a, as the heat from
the first may render a fire in the second unnecessary, or a small fire only may
be required in the second. The cisterns f,f, we prefer to make of iron; we
do not, however, limit ourselves to the use of iron.
Having now described the nature of our said Invention, and the manner
of carrying the same into effect, we wish it to be understood that we do not
limit ourselves to the precise details herein described and represented, as the
same may be varied without departing from the nature of our said Invention;
but we claim as our Invention the method herein described, and illustrated in
the accompanying Drawing, of constructing ovens or kilus to be used in the
manufacture of coke and pottery, and for heating and drying generally, that
is to say, ovens or kilns in which the heated air and flame from a furnace are
made to circulate around a lining or cistern in which the coal to be coked or

page_text: the other matters or things to be heated or dried are contained. Also con-
necting a number of the said ovens or kilns together, so that the heated air
and flame. from the first. shall pass through the whole series, as hercin
described.
In witness whereof, I, the said Charles: Jarvis, have hereunto set my
hand and seal, this Fifth day of July, in the year of our Lord One
thousand eight, hundred and fifty-six.
Witness,
GEORGE SHAW:
CHARLES JARVIS. (L.B.)