IMPROVEMENTS IN GAS GOVERNORS OR REGULATORS
Year: 1877

page_text: LETTERS PATENT to Oskar Annell, of Stockholm, in Sweden, for the Invention
of "IMPROVEMENTS IN GAS GOVERNORS OR REGULATORS."
Sealed the 2nd April 1878, and dated the 5th October 1877.
PROVISIONAL SPECIFICATION left by the said Oskar Annell at the Office
of the Commissioners of Patents on the 5th October 1877.
OSKAR ANNELLL, of Stockholm, in Sweden. "IMPROVEMENTS IN GAS GOVERNORS
OR REGULATORS."
The object of this Invention is to so construct gas governors or regulators that,
as nearly as possible, a constant consumption of gas may be ensured, independent of
the variable pressure of the gas supply, and to make the different flames inde-
pendent of each other, so that the consumer may always have it in his power to
determine the quantity of gas he uses for a certain purpose.
The Invention consists of a shell or case made of any suitable metal, and into
the top of which a piece of metal to which the burner is fixed is screwed. The
piece of metal that carries the burner, or the steatite burner itself, has several holes
through the bottom of it to admit of the passage of the gas. Within the shell or
case is a short tube, open at both ends, and provided with slotted openings in its
sides;
this tube has also a flange at its lower end of such diameter as will permit
of its rising and falling freely within the chamber. On the under side of the
flange there is a disc pivotted eccentrically, and so arranged that it may be adjusted
to cover the central orifice, either wholly or in part only.
In the upper part of the chamber is fixed a plate with a central aperture of such
diameter as will form a guide for and allow of the short tube sliding up and down
through it easily.
To the lower part of the shell is screwed another piece of metal, having a thread
on its exterior, so that the governor may be screwed into the ordinary gas fitting,
or the shell may be made in one piece, the lower part being screwed as just
described.
The gas enters the lower chamber, and passes through the adjustable opening into

page_text: the sliding tube, and between the flange and the upper plate, and also through the
upper part of. the sliding tube into the conic chamber in which the several holes
leading to the burner are placed.
The action of the gas upon the bottom flange, as the pressure increases in the
gas pipes, raises the moveable tube and the outlet between the upper end of the
metal tube and the bottom of the conic chamber is reduced so as to admit less gas
to escape through the burner; and as the pressure decreases it falls, thereby allowing
more gas to pass to the burner.
The gas admitted between the flange and the upper plate acts as an equalizer
of pressure to that on the under side of the flange, thereby causing as nearly
as practicable an equal flow of gas to the burner, and so secure a uniform flame, no
matter what the variation of pressure in the supply pipes may be.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Oskar Annell in the Great Seal Patent Office on the 3rd April
1878.
OSKAR ANNELL, of Stockholm, in Sweden.
OR REGULATORS."
"IMPROVEMENTS IN GAS GOVERNORS
The object of this Invention is to so construct gas governors or regulators that,
as nearly as possible, a constant consumption of gas may be ensured, independent of
the variable pressure of the gas supply, and to make the different flames, independent
of each other, so that the consumer may always have it in his power to determine
the quantity of gas he uses for a certain purpose.
The Invention consists of a shell or case made of any suitable metal, and into
the top of which a piece of metal to which the burner is fixed is screwed. The
piece of metal that carries the burner, or the steatite burner itself, has several holes
through the bottom of it to admit of the passage of the gas. Within the shell or
case is a short tube open at both ends, and provided with slotted openings in its
sides; this tube has also a flange at its lower end of such diameter as will permit
of its rising and falling freely within the chamber. On the under side of the flange
there is a disc pivotted eccentrically, and so arranged that it may be adjusted to
cover the central orifice either wholly or in part only.
In the upper part of the chamber is fixed a plate with a central aperture of such
diameter as will form a guide for and allow of a short tube sliding up and down
through it easily.
To the lower part of the shell is screwed another piece of metal having a thread
on its exterior, so that the governor may be screwed into the ordinary gas fitting,
or the shell may be made in one piece, the lower part being screwed as just
described.
In order that the foregoing may be more easily understood Drawings are attached
hereto, of which the following is a description:
Fig. 1 is an elevation drawn to the natural size.
Fig. 2 is a vertical section drawn to double the size.
Fig. 3 is a view of the under side of the burner.

page_text: Fig. 4 is the slotted tube and flange separated from the rest of the burner.
And Fig. 5 is a view of the under side of the flange, showing the moveable
disc.
In Fig. 1, A is the burner made wholly of steatite, and screwed into the case B,
which has an outside thread at its upper part for the support of a gallery, and an
outside thread at its lower part for insertion into an ordinary gas fitting.
In Fig. 2, A is also the burner, and B the case, C being that part of the burner
through which the holes or channels are cut for conducting the gas into the body
of the burner, and from thence to the slit or point of combustion; D is the slotted
tube; and E, the flange and adjustable disc F; and G is the plate through which
the slotted tube slides up and down. This plate rests upon a shoulder, and is kept
fixed in position by the burner A, being screwed down upon it.
In Fig. 3, C shows the under side of the part marked similarly in Fig. 2, J, J, J, J,
being the four holes or channels before referred to.
In Fig. 5, E is the flange; and F, the pivotted and moveable disc by which the
size of the orifice H is increased or decreased at pleasure.
The gas enters the lower chamber, and passes through the adjustable opening
into the sliding tube, and between the flange and the upper plate, and also through
the upper part of the sliding tube into the conic chamber in which the several holes
leading to the burner are placed.
The action of the gas upon the bottom flange, as the pressure increases in the gas
pipes, raises the moveable tube; and the outlet between the upper end of the metal
tube and the bottom of the conic chamber K, Fig. 2, is reduced so as to admit less
gas to escape through the burner; and as the pressure decreases it falls, thereby
allowing more gas to pass to the burner.
The gas admitted between the flange and the upper plate acts as an equalizer of
pressure to that on the under side of the flange, thereby causing, as nearly as
practicable, an equal flow of gas to the burner, and so secure a uniform flame, no
matter what the variation of pressure in the supply pipes may be.
Having now described and particularly set forth the nature of this Invention, and
the manner in which the same is or may be used or carried into effect, I would
observe in conclusion that I do not confine or restrict myself to the precise details
or arrangements which I have described or referred to, as variations may be made
therefrom without deviating from the principles or main features of this Invention ;
but what I consider to be novel and original, and therefore claim as the Invention
secured to me by the herein-before in part recited Letters Patent is,―
Firstly. For the construction of steatite burners of the form herein described,
and shown on the Drawings.
And, Secondly. The disc F, by which the orifice H may be increased or decreased,
as herein described, and shown on the Drawings.
In witness whereof, I, the said Oskar Annell, have hereunto set my hand
and seal, this Twenty-seventh day of March, in the year of our Lord One
thousand eight hundred and seventy-eight.
OSKAR ANNELL. (L.S.)