AN IMPROVED APPARATUS FOR THE PURIFICATION AND THE COMBUSTION OF GAS
Year: 1856

page_text: LETTERS PATENT to Jean Baptiste Feauveau and Louis Alexander
Legrand, both of Brussels, Kingdom of Belgium, for the Invention of
"AN IMPROVED APPARATUS FOR THE PURIFICATION AND THE COMBUSTION OF
GAS"
Sealed the 13th February 1857, and dated the 28th August 1856.
PROVISIONAL SPECIFICATION left by the said Jean Baptiste Feauveau
and Louis Alexander Legrand at the Office of the Commissioners of
Patents, with their Petition, on the 28th August 1856.
We, JEAN BAPTISTE FEAUVEAU and LOUIS ALEXANDER LEGRAND, do hereby
declare the nature of the said Invention for "AN IMPROVED APPARATUS FOR THE
PURIFICATION AND THE COMBUSTION OF GAS," to be as follows:-
This Invention consists in the use of a filtering and purifying apparatus and
reservoir, in connection with a gas burner or burners.
The Invention, and the means by which the same is to be carried into effect,
will be readily understood from the following description, and by referring to
the accompanying Drawing therein alluded to :-
Description. In the said Drawing, A, A, are two iron tubes, with one hole
in the centre and two smaller ones at each extremity, from whence the gas
issues. The form of these tubes and the material of which they are made
can be varied at pleasure. B, body of the gas burner, upon which are fixed
the two tubes A, A; C, reservoir, placed below the body of burner B;

page_text: D, bottom of burner, with screw thread, to screw on to any gas apparatus ;
E, grating, fixed on the top of the base of the burner D; it prevents a too
great pressure of gas, and the number of small holes with which it is perforated
serve to filter and purify the gas and feed the reservoir C. The two parts B, D,
are screwed together, and consequently can be separated at pleasure, when
necessary for clearing the holes in the part E; or any other mode of adjusting
these parts may be adopted. The combination of these various parts forms a
burner, from whence the illuminated gas issues in a flame, surpassing in white-
ness and purity that obtained by any burner ordinarily employed. The saving
from use of this burner will be great.
The Invention, as above described, we intend to claim, with such variations
of the forms, materials, and proportions as practice may suggest.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Jean Baptiste Feauveau and Louis Alexander Legrand in
the Great Seal Patent Office on the 27th February 1857.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JEAN
BAPTISTE FEAUVEAU and LOUIS ALEXANDRE LEGRAND, both of Brussels,
Kingdom of Belgium, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-eighth day of August, in the year of our
Lord One thousand eight hundred and fifty-six, in the twentieth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us, the
said Jean Baptiste Feauveau and Louis Alexandre Legrand, Her special licence
that we, the said Jean Baptiste Feauveau and Louis Alexandre Legrand,
our executors, administrators, and assigns, or such others as we, the said Jean
Baptiste Feauveau and Louis Alexandre Legrand, our executors, administra-
tors, 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 "AN IMPROVED APPARATUS FOR THE PURIFICATION AND THE COM-
BUSTION OF GAS," upon the condition (amongst others) that we, the said Jean
Baptiste Feauveau and Louis Alexandre Legrand, our executors or adininis-
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

page_text: 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 Jean Baptiste Feauveau and Louis
Alexandre Legrand, 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 nature of this Invention consists in a peculiar arrangement of gas
burners, and the use of a purifying or filtering apparatus, (which has the effect
of a regulating apparatus also,) connected therewith, which may, however, be
used with advantage apart from each other.
In order to the further exemplification of the nature of our said Invention,
and to particularly describe in what manner the same is to be performed, we
will now refer to the illustrative Drawings accompanying this Specification by
the words, figures, and letters following, that is to say :-
DESCRIPTION OF THE DRAWINGS.
Fig. 1, elevation of the whole apparatus, that is, the burner with the puri-
fying and regulating reservoir attached thereto; Fig. 2, top plan; Fig. 3, top
plan of perforated separation, or purifying, or filtering plate or grating; Fig. 4,
elevation of body of apparatus B, detached from its base; Fig. 5, elevation
of base, detached from body of the apparatus; Fig. 6, vertical section of
apparatus, shewing how the gas circulates therein; Fig. 7, elevation, shewing
the application of the purifying and regulating apparatus to an annular
burner; Fig. 8, elevation of the same apparatus applied at or near the admis-
sion cock; Fig. 9, elevation, of the same apparatus applied to an elbow
burner. Fig. 10, elevation, shewing the same apparatus applied to the joint
for two pipes, the two being shewn asunder;. Fig. 11, edge view, and Fig. 12,
plan of chimney top, which may be used in conjunction with this Invention,
as hereafter described.
It will be readily understood from what has just been stated, and by referring
to the Drawings, that in order to carry this Invention into practical effect, it
is only necessary to attach to the gas pipe, by screwing or other suitable means,
a short tube, such as that herein-before termed the base, and marked D, pro-
vided with a perforated plate, such as that marked D¹, and to secure this, by
screwing on or other suitable means, to what is herein-before termed the body,
and marked B, containing a reservoir or receiver, the other end of which shall
have exit passages placed opposite to each other, from which the gas from the
receiver will pass to the burners, (marked A, A,) which can thus be placed at
corresponding angles, so as to cause their flames to cross each other, whereby

page_text: we effect more perfect combustion of the gas, and obtain very great illuminating
power; and by the adoption of the aforesaid perforated plate (D¹, D',) and
the receiver or reservoir B, we are enabled to effect this great improvement
in the combustion, combined with great economy, and to regulate the amount
of gas expended, which can be dono by increasing or diminishing the number
and size of the perforations in the separation plate; and this perforated plate
will moreover act as a strainer or filterer to prevent extraneous particles or
substances other than gas issuing with the flames from the mouth of the burner.
It will be gathered from the observation of the Figs. 7 to 10, that this per-
forated plate (D', D¹,) can be readily applied, without reference to the use of
the burners (A, A,) and it will even then effect great improvements in the
combustion of the gas, notwithstanding the improved arrangement of burners
above described be not used therewith.
Figs. 11 and 12 exhibit the improved chimney top, which may be used in
conjunction with the apparatus aforesaid. This consists of an annular plate
with a pendant rim or flange, with perforations or orifices in the said plate, to
be placed on the top of the chimney or gas glass, and will then cause the gas
to burn with great illuminating intensity without increasing the consumption
thereof; although we recommend the adoption of this in conjunction with
our apparatus, we do not claim the exclusive use of our chimney top, neither
is it absolutely requisite to the successful adoption of our apparatus. The
different parts described are constructed of suitable metals, as usual.
Having now described the nature of the said Invention, and in what manner
the same is to be performed, we declare that we claim, in respect of the said
Invention, the use and adaptation of burners placed in the juxtaposition
herein-before described; and also the use and adaptation of the purifying and
regulating plate or grating, whether used in conjunction with the before-
described peculiar arrangement of burners or not.
In witness whereof, we, the said Jean Baptiste Feauveau and Louis
Alexandre Legrand, have hereunto set our hands and seals, this Twenty-
fifth day of February, in the year of our Lord One thousand eight
hundred and fifty-seven.
FEAUVEAU. (L.S.)
A. LEGRAND: (L.S.)
FEAUVEAU.
(L.B.)
A. LEGRAND: (L.S.)