IMPROVEMENTS IN HYDRO-OXYGEN GAS BURNERS
Year: 1872

page_text: LETTERS PATENT to Alexander Prince, of the Office for Patents,
4, Trafalgar Square, Charing Cross, in the County of Middlesex,
for the Invention of "IMPROVEMENTS IN HYDRO-OXYGEN GAS BURNERS."
-A communication from abroad by Bernhard Andreae, of Vienna,
PROVISIONAL SPECIFICATION left by the said Alexander Prince at the
Office of the Commissioners of Patents, with his Petition, on the
17th December 1872.
I, ALEXANDER PRINCE, of the Office for Patents, 4, Trafalgar Square,
Charing Cross, in the County of Middlesex, do hereby declare the nature
of the said Invention for "IMPROVEMENTS IN HYDRO-OXYGEN GAS BURNERS,"
a communication to me from abroad by Bernhard Andreae, of Vienna,
in the Empire of Austria, Engineer, to be as follows:-
The Invention is designed for the purpose of providing a burner for
gas that will economize and increase its illuminating properties.
The improvements consist in surrounding the ordinary pipe conveying

page_text: such a manner that an annular space will be left between the exterior
surface of the inner pipe and the interior surface of the outer pipe.
These pipes at their lower end are provided with a two-way cock or tap
which, when open, will simultaneously allow coal or other illuminating
gas to pass into the inner pipe, and oxygen or the gases of combustion
into the annular space. The upper extremity of the outer pipe is pro-
vided with a cap or burner that entirely covers the inner pipe, and is
so arranged that by turning or otherwise moving the same the amount
of oxygen from the annular space can be regulated as required, and by
the peculiar formation of holes or perforations formed therein the
gas of combustion can be so arranged that it can impinge upon and
give the illuminating gas any form required, producing at the same
time a much more brilliant light than is now obtained.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Alexander Prince in the Great Seal Patent Office
on the 17th June 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ALEXANDER
PRINCE, of the Office for Patents, 4, Trafalgar Square, Charing Cross,
in the County of Middlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Seventeenth day of December, in the year of
our Lord One thousand eight hundred and seventy-two, in the thirty-sixth
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto me, the said Alexander Prince, Her special license, that I,
the said Alexander Prince, my executors, administrators, and assigns, or
such others as I, the said Alexander Prince, 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 Kingdom of Great Britain and Ireland, the Channel Islands,
and Isle of Man, an Invention for "IMPROVEMENTS IN HYDRO-OXYGEN GAS
BURNERS," a communication to me, from abroad by Bernhard Andreae,
of Vienna, in the Empire of Austria, Engineer, upon the condition
(amongst others) that I, the said Alexander Prince, my executors
or administrators, by an instrument in writing under my, or their,

page_text: 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 Alexander Prince, do hereby declare
the nature of the said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement thereof, that is to say :-
The Invention is designed for the purpose of providing a burner for
gas that will economize and increase its illuminating properties.
The improvements consist in surrounding the ordinary pipe conveying
the hydrogen or ordinary illuminating coal gas with a second pipe, in
such a manner that an annular space will be left between the exterior
surface of the inner pipe and the interior surface of the outer pipe.
These pipes at their lower end are provided with a two-way cock or tap
which, when open, will simultaneously allow coal or other illuminating
gas to pass into the inner pipe, and oxygen or the gases of combustion
into the annular space. The upper extremity of the outer pipe is pro-
vided with a cap or burner that entirely covers the inner pipe, and is so
arranged that by turning or otherwise moving the same the amount
of oxygen from the annular space can be regulated as required, and by
the peculiar formation of holes or perforations formed therein the gas of
combustion can be so arranged that it can impinge upon and give the
illuminating gas any form required, producing at the same time a much
more brilliant light than is now obtained.
In order that the Invention shall be better understood and explained
in detail, I have hereunto attached a Sheet of Drawing made about full
size, upon which letters of reference are marked.

page_text: thoroughfares or passages a¹ and 6 which, when open, will simul-
taneously allow coal or other illuminating gas to pass into the inner pipe
a, and air or other gases of combustion into the annular space b. The
upper extremity of the outer pipe b¹ is provided with a cap d and
burner e that is arranged to cover the annular space 6 and orifice of the
inner pipe a, and at the same time be capable of turning upon its
seating, so as to open or close perforations which regulate the admission
of air or oxygen gas from the annular space' to the hydrogen or other
illuminating gas passing from the pipe a.
The manner in which the gases of combustion are directed to issue -
from the perforations fon to the illuminating gas not only increases its
illuminating power, but also gives the flame any form desired.
Having now described the nature of the said Invention, together with
the method of carrying the same into practical effect, I wish it to be
distinctly understood in conclusion that I claim the novel arrangement,
employment, and use of the improved construction of hydro-oxygen gas
burner, in the manner and for the purpose as herein-before substantially
described, set forth, and fully illustrated in the Drawing annexed.
In witness whereof, I, the said Alexander Prince, have hereunto set
my hand and seal, this Seventeenth day of June, in the year of
our Lord One thousand eight hundred and seventy-three.
ALEX”. PRINCE. (L.S.)