IMPROVEMENTS IN OVENS FOR FIRING POTTERY WARE, VIZ'., CHINA, DR
Year: 1873

page_text: LETTERS PATENT to Thomas Nicklin, Potters' Manager, of 2, Villiers
Street, and James Frost, Potters' Fireman, of 2, Belgrave Road,
both of Dresden, in the County of Stafford, for the Invention
of "IMPROVEMENTS IN OVENS FOR FIRING POTTERY WARE, VIZ'., CHINA,
DR
PROVISIONAL SPECIFICATION left by the said Thomas Nicklin and
James Frost at the Office of the Commissioners of Patents, with
their Petition, on the 17th April 1873.
We, THOMAS NICKLIN, Potters' Manager, of 2, Villiers Street, and
JAMES FROST, Potters' Fireman, of 2, Belgrave Road, both of Dresden,
in the County of Stafford, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN OVENS FOR FIRING POTTERY WARE,
VIZ., CHINA, EARTHENWARE, BRICKS, AND SUCH LIKE MATERIALS," to be as
follows:-
The principal object of this Invention is to economise the heat in

page_text: ovens whereby it shall have the effect of its perfect utilization and
produce at least twice as much as in the ordinarily constructed ovens
where the heat is allowed to escape out at once through the upper part
and thus become as far as the oven is concerned perfectly useless.
"
Now our Invention consists of a circular dome-shaped brick oven
having the fire-places around the base, from which fire-places the heat is
allowed to ascend through the "bags" or flues connected therewith into
the interior of the oven, and then by a centripetal action the heat descends
through certain perforations in the "bottom of the oven, thence
radiating through a number of flues arranged underneath the "bottom,"
and after thoroughly permeating and passing through these flues it is
conducted to a main vertical shaft placed in the centre of the oven; this
shaft has openings in the upper and lower part for the purpose, in the
first instance, of carrying off any unconsumed carbon which may be
present until the heat of the oven is such that the whole of the carbon
will be utilized, and in the second place for modifying the action of the
fire upon the bottom of the shaft. There are four openings as usual in
the dome provided with dampers for lighting and cooling the oven.
The 'central shaft is also provided with a damper.
SPECIFICATION in pursuance of the conditions of the Letters Patent, 2
filed by the said Thomas Nicklin and James Frost in the Great
Seal Patent Office on the 15th October 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, WC, THOMAS -
NICKLIN, Potters' Manager, of 2, Villiers Street, and JAMES FROST,
Potters' Fireman, of 2, Belgrave Road, both of Dresden, in the County 1
of Stafford, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Seventeenth day of April, in the year
of our Lord One thousand eight hundred and seventy-three, in the
thirty-sixth year of Her reign, did, for Herself, Her heirs and
successors, give and grant unto us, the said Thomas Nicklin and
James Frost, Her special licence that we, the said Thomas Nicklin
and James Frost, our executors, administrators, and assigns, or such
.

page_text: others as we, the said Thomas Nicklin and James Frost, our 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,
5 and vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for ". IMPROVEMENTS
IN OVENS FOR FIRING POTTERY WARE, VIZ., CHINA, EARTHENWARE, BRICKS, AND
OTHER LIKE PURPOSES," upon the condition (amongst others) that we,
the said Thomas Nicklin and James Frost, our executors or adminis-
trators, by an instrument in writing under our, 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 we, the said Thomas Nicklin and James
Frost, do hereby declare the nature of our said Invention, and in what
manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
The principal object of this Invention is to economize the heat in
oven whereby it shall have the effect of its perfect utilization and
produce at least twice as much as in the ordinarily constructed
ovens where the heat is allowed to escape out at once through the
upper part and thus become as far as the oven is concerned perfectly
useless.
وو
Now our Invention consists of a circular dome-shaped brick oven
having the fire-places around the base, from which fire-places the heat is
allowed to ascend through the "bags or flues connected therewith
into the interior of the oven, and then by a centripetal action the
heat descends through certain perforations in the "bottom" of the
oven, thence radiating through a number of flues arranged underneath
the "bottom," and after thoroughly permeating and passing through
these flues it is conducted to a main vertical shaft placed in the
centre of the oven; this shaft has openings in the upper and lower
part for the purpose, in the first instance, of carrying off any
unconsumed carbon which may be present until the heat of the oven
.

page_text: is such that the whole of the carbon will be utilized, and in the second
place, for modifying the action of the fire upon the bottom of the shaft.
There are four openings as usual in the dome provided with dampers for
lighting and cooling the oven. The central shaft is also provided with
a damner.
Having thus described the nature of this our said Invention and the
mode of carrying the same into effect, now what we claim and desire
to be secured to us by the herein-before in part recited Letters Patent is
the said Invention for improvements in ovens for firing pottery ware,
viz., china, earthenware, bricks, and such like materials, substantially as

page_text: herein described and as illustrated on the accompanying Drawings or
any mere modification of the same.
In witness whereof, we, the said Thomas Nicklin and James
Frost, have hereunto set our hands and seals, this Thirteenth
day of October, in the year of our Lord One thousand eight
hundred and seventy-three.