Year: 1897

page_text: drawn over to one of its extreme positions by an electric current in the correspond-
ing solenoids e, the said groove or opening will provide a communication for the
gas from the pipe to the burner. When electric current is sent through the other
solenoid f the piston will be moved over to its other extreme position and the said
groove g will move out of communication with the opening b so that the gas is
shut off from the burner by the piston-valve. When the piston-valve is drawn
over by the solenoid c so as to open to admit the gas, it may actuate a lever h, the
upper end of which is adapted to open an electric circuit at its upper end and
cause a spark to ignite the gas. When the burner is closed, a spring i will pull
back the lower end so as to close the said circuit again.
I am aware that a cylindrical valve, moving in a transverse opening in the
burner and provided with a hole or groove, has been used with electromagnets, 56
I do not claim this.
Having now particularly described and ascertained the nature of this said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
1. In an electrically operated gas-burner having a valve in the shape of a slide
or the like moving in a transverse opening in the burner and provided with open-
ings through or around itself, a solenoid around each end of said valve adapted
to actuate the said valve when traversed by electric current, substantially as and
for the purpose set forth.
2. The combination with a gasburner having a valve moving in a transverse
opening in the burner and provided with openings through or around-itself, of
a solenoid around each end of said valve adapted to actuate said valve when
traversed by electric current, a bottom in the outward end of each solenoid, and
mechanism adapted to be actuated by the said valve so as to cause the gas to
he ignited when the valve is opened, substantially as and for the purpose set
forth.
Dated this 25th day of October 1807
WALLACE FAIRWEATHER,
Of the Firm of Cruikshank and Fairweather,
Chartered Patent Agents,
62 Saint Vincent Street, Glasgow. Agent for the Applicant.

page_text: PROVISIONAL SPECIFICATION.
66
Improvements in Electrically Operated Gasburners."
I, CARL PETTERSSON, Engineer, of Enköping, Sweden, do hereby declare the
nature of this invention to be as follows:-
This invention pertains to improvements in electrically operated gasburners.
The electrically operated gasburners hitherto known have the disadva.itage
that should the pressure of gas increase so much above the average that it i able
to overcome the weight of the valve the same will open. The object of this in-
vention is to provide a burner which has no unreliable valve acting by gravita-
tion, no expensive conical plug, nor any permanent magnet and which besides is
simple, cheap and reliable and which will not be opened by a high pressure of the
gas.
;
nas been
The invention consists in making the valve in the shape of a slide or the like
which moves tightly in a transverse opening in the body of the burner and is pro-
vided with an opening through or around itself. The said slide-valve may be
made either entirely or partly of magnetizable material and each end of the same is
surrounded by a solenoid through which electric currents are sent in opening
and closing the burner. The said opening through or around the valve placed
so that the same is opposite the opening in the burner, when the ve'
pulled over to its extreme limit by sending an electric current through only one
of the said solenoids, so that the gas will freely flow to the burner proper. When
an electric current is sent through the other of the said solenoids only the valve
will be pulled over to its other extreme limit whereby the said opening in the valve
will no longer provide a communication for the gas but the valve will entirely
close the opening in the burner.
Instead of the said solenoids, electromagnets may be used in the same manner.
The lighting of the gas may be accomplished by the said valve acting on some lever
mechanism so as to open an electric circuit and causing a spark to light the gas
while the valve is being opened, or the lighting device may be entirely indepen-
dent of the valve (or electromagnets) and of any well known construction.
One method of carrying out my invention is shown in the accompanying draw-
ing, in which Figure 1 represents a vertical section through a burner embodying
my improvements and Fig. 2 represents a plan-view of the same.
a is the body of the burner provided with the opening b, through which the
gas from the pipe flows to the burner at the top. is a piston-valve preferably
of soft iron, said piston valve being tightly movable in a transverse opening in
the body of the burner so that it crosses the shid opening b. The ends of said
piston d move in solenoids e and f the outer ends of said solenoids being closed
so as to limit the movement of the piston valve. A groove, slot or opening g is
provided in the said piston valve in such a place that when the piston-valve is
drawn over to one of its extreme positions by an electric current in the corre-
sponding solenoid e the said groove or opening will provide a communication for
the gas from the pipe to the burner. When electric current is sent through the
other solenoid f the piston.will be moved over to its other extreme position and

page_text: the said groove g will move out of communication with the opening so that the
gas is shut off from the burner by the piston valve. When the piston-valve is
drawn over by the solenoid e so as to open to admit the gas it may actuate a lever h,
the upper end of which is adapted to open an electric circuit at its upper end and
cause a spark to ignite the gas. When the burner is closed a spring i will pull 5
back the lever end so as to close the said circuit again.
Dated this 25th day of January 1897
WALLACE FAIRWEATHER
Of the Firm of Cruikshank and Fairweather,
Chartered Patent Agents,
aint Vincent Street, Glasgow. Agent for the Applicant.
Improvements in Electrically Operated Gasburners.
I, CARL PETTERSSON, Engineer, of Enköping, Sweden, do hereby declare the
nature of this invention and in what manner the same is to be performed to be
particularly described and ascertained in and by the following statement;
This invention pertains to improvements in electrically operated gasburners.
The electrically operated gasburners hitherto known have the disadvantage
that should the pressure of gas increase so much above the average that it is able
to overcome the weight of the valve the same will open. The object of this in-
vention is to provide a burner which has no unreliable valve acting by gravita-
tion, no expensive conical plug, nor any permanent magnet and which besides is
simple, cheap and reliable and which will not be opened by a high pressure of the
gas.
This invention consists in employing a valve in the shape of a slide or the like
which moves tightly in a transverse opening in the body of the burner and is pro-
vided with an opening through or around itself. The said slide valve may be made
either entirely or partly of magnetizable material and each end of the same is
surrounded by a solenoid through which electric currents are sent in opening
and closing the burner. The said opening through or around the valve is placed
so that the same is opposite the opening in the burner, when the valve has been
pulled over to its extreme limit by sending an electric current through only one
of the said solenoids, so that the gas will freely flow to the burner proper. When
an electric current is sent through the other of the said solenoids only, the valve
will be pulled over to its other extreme limit whereby the said opening in the valve
will no longer provide a communication for the gas but the valve will entirely
close the opening in the burner.
The lighting of the gas may be accomplished by the said valve acting on some
lever mechanism so as to open an electric circuit and causing a spark to light the
gas while the valve is being opened, or the lighting device may be entirely in-
dependent of the valve and of any well known construction.
The invention is shown in the drawing left with the Provisional Specification
in which Figure 1 represents a vertical section through a burnor embodying my
improvements and Fig. 2 represents a plan-view of the same.
a is the body of the burner provided with the opening b, through which the
gas from the pipe flows to the burner c at the top. d is a piston-valve preferably
of soft iron, said piston valve being tightly movable in a transverse opening in
the body of the burner so that it. crosses the said opening b. The ends of said
piston move in solenoids e and f, the outer ends of said solenoids being closed
so as to limit the movement of the piston valve. A groove, slot or opening g is
provided in the said piston valve in such a place that when the piston-valve is