AN IMPROVED ADDADAMITO FAD CARRIETTING AIR
Year: 1872

page_text: LETTERS PATENT to Joseph François Marie Rigod, of Boulevard de
Strasbourg, No. 23, à Paris, for the Invention of "AN IMPROVED
ADDADAMITO FAD CARRIETTING AIR "
Sealed the 1st October 1872, and dated the 3rd April 1872.
PROVISIONAL SPECIFICATION left by the said Joseph François Marie
Rigod at the Office of the Commissioners of Patents, with his
Petition, on the 3rd April 1872.
I, JOSEPH FRANÇOIS MARIE RIGOD, of Boulevard de Strasbourg,
No. 23, à Paris, do hereby declare the nature of the said Invention
for "AN IMPROVED APPARATUS FOR CARBURETTING AIR," to be as follows:-
.
This Invention consists in improved apparatus for carburetting air
with mineral or vegetable hydrocarbons to be used for lighting and
heating purposes.
f
The apparatus consists of a hollow metal cylinder, in the interior. of
which there is another hollow metal cylinder having four or other
required number of compartments formed of a spiral or helical shape,
and open at their ends, the cylinders being fixed to a horizontal shape.
At one side of the internal cylinder there is a curved cover enclosing
a tube used for supplying the air to be carburetted, and also for dividing
the carburetting matter into spray. This supply and spray tube consists
of an external tube, in the centre of which there is a small capillary
.

page_text: tube having its lower end in the hydrocarbon, which is contained in the
external cylinder.
The spiral or helical partitions are covered with threads of wire,
cotton, wool, or other dividing material; and when air is supplied to the
apparatus by a bellows or fan the liquid rises through the capillary tube,
and is divided into spray by the air, and strikes upon the metallic or
other threads, so that the air will be perfectly saturated with the hydro-
carbon, and when ignited gives intense light and heat. The pressure of
the air gives a rotating movement to the internal cylinder, which has
the effect of enabling the liquid to be always in contact with fresh air
and the air with fresh liquid.
Instead of the metallic or fibrous threads on the spiral or helical par-
titions these partitions may be made of wire gauze or cloth, and the
capillary tube may be plunged into a receptacle containing a heavy oil
in order to give more density to the flame; and in some cases the
capillary tube may be dispensed with, and the air allowed to act on the
saturated wire or threads only.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Joseph François Marie Rigod in the Great Seal
Patent Office on the 3rd October 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOSEPH
FRANÇOIS MARIE 'RIGOD, of Boulevard de Strasbourg, No. 23, à Paris,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Third day of April, in the year of
our Lord One thousand eight hundred and seventy-two, in the thirty-
fifth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Joseph François Marie Rigod, Her
special licence that I, the said Joseph François Marie Rigod, my
executors, administrators, and assigns, or such others as I, the said
Joseph François Marie Rigod, 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

page_text: Kingdom of Great Britain and Ireland, the Channel Islands, and Isle
of Man, an Invention for "AN IMPROVED APPARATUS FOR CARBURETTING
AIR," upon the condition (amongst others) that I, the said Joseph
François Marie Rigod, 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 Joseph François Marie Rigod, 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 statement (that is to say) :-
The object of my Invention is to provide an apparatus suitable for.
carburetting air by means of mineral or vegetable essences or hydro-
carbons, and applying the carburetted air for lighting and heating
purposes.
The apparatus consists of an external metal cylinder containing
another metal cylinder having lateral helical openings at each of its
faces; and this cylinder, which is divided into four compartments, is
fixed to a horizontal shaft, which turns with the cylinder in two bearings
by the simple reaction of the air. The internal cylinder has on its sides
a convex cap or cover, in the interior of which there is a tube which
supplies the air to be carburetted. This tube, which I call a dividing
tube, consists of an external tube having in its interior at the centre a
small capillary tube, the lower end of which is immersed in the car-
buretting liquid, which is poured into the external cylinder. The air
is forced by a blower through the dividing tube and through the lateral
and helical openings, where it becomes saturated with the carburetting
liquid, and it then escapes through an opposite opening in a sufficiently
carburetted state to burn with a beautiful flame.
These improvements will be clearly understood by referring to the
figures and letters on the accompanying Sheet of Drawings, in which
Figs. 1 and 2 are longitudinal and transverse sections of this arrangement
of my carburetting apparatus.
B represents an external cylinder surrounding an internal cylinder C
having lateral helical openings in its two sides, and it is divided into
four compartments D, D, D, D; and fixed to a shaft J, which turns in
.

page_text: two bearings K, K, by the reaction of the current of air. The cylinder C,
which as seen in Figs. 1 and 2, is not so large as the cylinder B, and has
at the side E a convex cap or cover P, in which there is the outlet of the
dividing tube which supplies the air; and this dividing tube F extending
to near the bottom of the apparatus, and also another tube G, and the
level of the liquid is shewn at N, N, and M the foot which supports
the apparatus. The liquid is introduced by the opening or pipe H, and
allowed to rise to the level N, N, the air being supplied at a low pressure
by means of a special bellows or fan to the pipe G, so that when it
escapes through the orifice O there will be sufficient suction to enable
the liquid to rise in the capillary tube F. This liquid when it arrives
in contact with the air becomes absolutely divided, and strikes threads
of metal or those made of vegetable or animal matters placed in suffi-
cient quantity in each of the compartments D, D, D, D, the effect of
which is that the air which passes out through the pipe or opening H is
perfectly saturated with the carburetting essence, and burnes with an
intense flame. The pressure of the air also causes the cylinder C to
rotate, the effect of which is to divide the essence or liquid and cause it
to come in contact with fresh liquid, and thus cooling is impossible; and
at the same time the liquid is not heated, and condensations are avoided.
This apparatus may also be employed without the threads of metal or
of vegetable or animal matters, and using instead of them cloth made of
the threads; and in this case the capillary tube may be dispensed with.
In another arrangement, instead of plunging the capillary tube or
tubes in the liquid with which the threads or cloth are in contact the
tube or tubes may be placed in a vessel containing a heavy oil in order
to give more density to the flame; and in all cases when a pair of
bellows is used it is provided with india-rubber springs, in order to
supply the air with regularity and without shocks.
The cylinder C may be modified in various ways without affecting the
working of the apparatus; thus the two sides may be formed of plates
with open spaces, or with spaces covered with metallic cloth, and in
these two cases the convex cap or cover P is indispensable. The
cylinder C can also be inclosed in lateral cases full or half full of liquid,
the periphery of the cylinder being formed of sheet metal having in it a
number of holes, or made entirely of metallic cloth.
The capillary tubes can also be replaced by a simple syphon elevated
between the cap P and the perforated sides of the cylinder; and the

page_text: india-rubber springs used for regulating the pressure can also be
replaced by metallic springs.
Having now described my said Invention, I desire it to be understood
that I claim as my Invention, the apparatus before described suitable for
carburetting air by means of mineral and vegetable essences. This
apparatus combines, when the conditions described in this Specification
and shewn in the accompanying Sheet of Drawings are characterized,
the following principal features,--
First. The arrangement of a cylinder, in the interior of which can
turn concentrically an internal cylinder provided with helical openings
which give a rotation to the cylinder by the effect of the reaction of the
current of air.
Secondly. The arrangement of the tube for the supply of air from a
blower, the tube forming at its end a dividing tube, and used in con-
nection with a small capillary tube having its lower end plunged in the
same liquid as that with which the cylinder is in contact, or placed in a
heavy oil for augmenting the density of the flame.
And, thirdly. The general arrangements and combinations of the
apparatus, and its several modifications, as herein described; and the
blower can be dispensed with by turning the cylinder C by working its
shaft J by any motive power; and in this case the rotation of the
cylinder C will cause a sufficient suction as not to require the pressure
given by the bellows.
In witness whereof, I, the said Joseph François Marie Rigod, have
hereunto set my hand and seal, this Twenty-fourth day of Sep-
tember One thousand eight hundred and seventy-two.
Witness,
JOSEPH FRANÇOIS MARIE RIGOD. (LS.)
ALBERT CAHEN,
Civil Engineer,
Boulevard Magenta, 32, at Paris.