IMPROVEMENTS IN KILNS FOR BURNING BRICKS, LIME, POTTERY, AND OTHER ARTICLES OR MATTERS
Year: 1868

page_text: LETTERS PATENT. to Ursen Adrien Masselon, of Issoudun, in the
Department of l'Indre, in the Empire of France, for the Invention
of "IMPROVEMENTS IN KILNS FOR BURNING BRICKS, LIME, POTTERY, AND
OTHER ARTICLES OR MATTERS."
Sealed the 16th February 1869, and dated the 7th September 1868.
PROVISIONAL SPÉCIFICATION left by the said Ursen Adrien Masselon
at the Office of the Commissioners of Patents, with his Petition,
on the 7th September 1868.
I, URSEN ADRIEN MASSELON, of Issoudun, in the Department of
l'Indre, in the Empire of France, do hereby declare the nature of the
said Invention for "IMPROVEMENTS IN KILNS FOR BURNING BRICKS, LIME,
POTTERY, AND OTHER ARTICLES OR MATTERS," to be as follows:-
The Invention has for its object improvements in kilns for burning
bricks, lime, pottery, and other articles or matters. For this purpose
I construct the kiln by preference of a rectangular form with an
arched roof, and I provide two or more furnaces the doors of
which are protected by means of fire-brick or by other suitable

page_text: means, and in the centre of the kiln and at each side thereof I
arrange dwarf walls running from front to back thereof, such dwarf
walls being inclined and slightly higher at the ends the remotest
from the furnaces. Upon these dwarf walls I arrange the bricks or other
articles or matters to a suitable height, and then turn an arch therewith
in such manner that the heat and products of combustion may pass
from one end to the other of such arches. The kiln is then completely
filled with the bricks or other articles or matters, and the man-hole
through which such articles or matters have been introduced is closed
in any suitable manner. The heated products of combustion circulate
and penetrate through and between the mass of bricks or other
articles or matters and then pass away by suitable flues. I leave spaces
in the walls of the kiln with passages communicating between such
spaces and the exterior of the kiln, in order to facilitate the escape
of the gases given off in the burning of the bricks or other articles or
matters. The furnaces I employ are constructed with two grates, one
being the main grate the other a supplemental grate, and I supply fuel
to such grates through the same door, a tube or passage being employed
to supply air to the second grate, and I prefer that such tube or passage
be supplied with air from the ash-pit of the main grate, the second
or supplemental grate being employed only when commencing to burn
a kiln of bricks or other articles or matters and until such matters or
articles are thoroughly dried; I then stop up the outer end of the tube
or passage supplying air to the second grate and employ only the main
grate:
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Ursen Adrien Masselon in the Great Seal Patent
Office on the 5th March 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, URSEN
ADRIEN MASSELON, of Issoudum, in the Department of l'Indre, in the 3
Empire of France, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by. Her
Letters Patent, bearing date the Seventh day of September, in the year of
our Lord One thousand eight hundred and sixty-eight, in the thirty-
second year of Her reign, did, for Herself, Her heirs and successors, .3

page_text: in the walls of the kiln with passages communicating between such
spaces and the exterior of the kiln in order to facilitate the escape of
the gases given off in the burning of the bricks or other articles or
matters. The furnaces I employ are constructed with two grates, one
being the main grate the other a supplemental grate, and I supply
fuel to such grates through the same door, a tube or passage being
employed to supply air to the second grate, and I prefer that such
tube or passage be supplied with air from the ash-pit of the main grate,
the second or supplemental grate being employed only when com-
mencing to burn a kiln full of bricks or other articles or matters, and
until such matters or articles are thoroughly dried; I then stop up the
outer end of the tube or passage supplying air to the second grate
and employ only the main grate.
In witness whereof, I, the said Ursen Adrien Masselon, have here-
unto set my hand and seal, this Fifth day of March, in the year
of our Lord One thousand eight hundred and sixty-nine.