IMPROVEMENTS IN THE CONSTRUCTION OF GAS BURNERS
Year: 1878

page_text: LETTERS PATENT to Lorentz Albert Groth, Civil Engineer, and Proprietor of
the Firm L. A. Groth & Co., Scandinavian Patent and Mercantile Office, of
Stockholm, in the Kingdom of Sweden, for the Invention of "IMPROVEMENTS
IN THE CONSTRUCTION OF GAS BURNERS." A communication by Gustaf
Fredrik Mourlin. of Stockholm.
PROVISIONAL SPECIFICATION left by the said Lorentz Albert Groth at the
Office of the Commissioners of Patents on the 2nd September 1878.
LORENTZ ALBERT GROTH, Civil Engineer, and Proprietor of the Firm L. A. Groth &
Co., Scandinavian Patent and Mercantile Office, of Stockholm, in the Kingdom of
Sweden. * IMPROVEMENTS IN THE CONSTRUCTION OF GAS BURNERS." (A com-
munication by Gustaf Fredrik Meurlin, of Stockholm.)
Burners inado according to this Invention are self-regulating, and consist of two
main parts screwed into one another, viz., the ordinary conical bottom part which
screws into the gas pipe, and the upper part which contains the burner proper with
nipple. The lower part contains a conical sleeve, the small open upper apex of
which just enters a small hole formed in a partition formed or fitted above it. The
cone sleeve can rise and fall according to the gas pressure.
With medium gas
pressure the gas lifts the cone sleeve so far that the gas enters the hole in the
partition partly from the apex of the cone sleeve and partly from the chamber in
which it works; with high gas pressure, the cone sleeve being in its highest position,
and its apex fully entering the hole in the partition, the gas enters the latter only
or mainly from the cone sleeve.
The cone sleeve will by the gas pressure rise until the pressure in the chamber
around the cone sleeve, in addition to the weight of the cone sleave itself, balance
the inner gas pressure in the cone sleeve.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent and of
an Order of the Lord Chancellor filed by the said Lorentz Albert Groth in the
Great Seal Patent Office on the 13th March 1879.
LORENTZ ALBERT GROTH, Civil Engineer, and Proprietor of the Firm L. A. Groth &
Co., Scandinavian Patent and Mercantile Office, of Stockholm, in the Kingdom of
Sweden. "IMPROVEMENTS IN THE CONSTRUCTION OF GAS BURNERS." (A com-
munication by Gustaf Fredrik Meurlin, of Stockholm.)
Burners made according to this Invention are self-regulating, and consist of two
main parts screwed into one another viz., the ordinary conical bottom part which
screws into the gas pipe, and the upper part which contains the burner proper with
nipple. The lower part contains a conical sleeve, the small open upper apex of
which just enters a small hole formed in a partition formed or fitted above it. The
cone sleeve can rise and fall according to the gas pressure.
With medium gas
pressure the gas lifts the cone sleeve so far that gas enters the hole in the partition
partly from the apex of the cone sleeve, and partly from the chamber in which it
works;
with high gas pressure, the cone sleeve being in its highest position, and its
apex fully entering the hole in the partition, the gas enters the latter only or mainly
from the cone sleeve. When the pressure becomes lower the cone sleeve sinks down
until the equilibrium be restored again.
The accompanying Drawing is a sectional view of a gas burner constructed
according to this Invention. The lower part a screws into the gas pipe and contains
the loose sleeve b, the small upper open apex of which is opposite to a hole e in a
cross partition; fis the part containing the burner nipple.
The cone sleeve b will rise by the gas pressure rise until the pressure in the chamber c
around the cone sleeve b, in addition to the weight of the cone sleeve b itself,
balance the inner gas pressure in the cone sleeve.
By this rising and falling of the sleeve b the surface exposed to the gas pressure
in the chamber c will constantly vary, while the inner pressure surface in the sleeve b
always remains constant; the vertical position of the sleeve b in the chamber c is
hence always in proportion to the pressure of the gas, but as the exit area through
the hole e is in inverse proportion to the gas pressure, it follows that the gas pressure
in the parts & and f is always constant.
From the foregoing it will be seen that the action of this arrangement cannot
fail; neither will it be impaired by impurities in the gas, like apparatus heretofore
used for the purpose which have failed more or less as to durability and efficiency.
I claim, as the Invention herein-before described, the combination of a cone
sleeve b free to rise and fall by the gas pressure, and an aperture e constructed and
operating, substantially as described and shewn.
In witness whereof, 1, the said Lorentz Albert Groth, have hereunto set my
hand and seal, this Twenty-first day of February, in the year of our Lord
One thousand eight hundred and seventy-nine.