IMPROVEMENTS IN APPARATUS FOR REGULATING THE SUPPLY OF GAS TO GAS BURNERS FOR STREET LAMPS AND OTHER PURPOSES
Year: 1877

page_text: LETTERS PATENT to John Newton, of Longport, Stoke-upon-Trent, in the
County of Stafford, Brassfounder, for the Invention of "IMPROVEMENTS IN
APPARATUS FOR REGULATING THE SUPPLY OF GAS TO GAS BURNERS FOR STREET
LAMPS AND OTHER PURPOSES."
Sealed the 6th October 1877, and dated the 24th April 1877.
PROVISIONAL SPECIFICATION left by the said John Newton at the Office
of the Commissioners of Patents on the 24th April 1877.
JOHN NEWTON, of Longport, Stoke-upon-Trent, in the County of Stafford, Brass-
founder. "IMPROVEMENTS IN APPARATUS FOR REGULATING THE SUPPLY OF GAS
TO GAS BURNERS FOR STREET LAMPS AND OTHER PURPOSES."
The object of my Invention is to obtain a regular supply of gas in the burners,
notwithstanding any irregularity in the pressure of the gas in the mains.
My improved apparatus consists of a vessel fixed to the supply pipe; in this
vessel are two flexible diaphragms supporting a metal tube, to the lower end of
which is attached a valve; the seating of this valve is formed in the lower part of
the vessel; the lower end of the metal tube is perforated and the upper end is in
direct communication with the pipe leading to the burner or burners. The gas
from the main passes direct to the lower side of the bottom diaphragm; it then passes
through the perforations in the lower end of the hollow tube, and then direct to
the upper side of the top diaphragm, and thence to the burner or burners.
When the pressure of the gas in the main is in excess, the valve is partially
closed by the action of the gas on the bottom diaphragm, thereby reducing the
supply to the burner or burners.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said John Newton in the Great Seal Patent Office on the 23rd October
1877.
JOHN NEWTON, of Longport, Stoke-upon-Trent, in the County of Stafford, Brass-
founder. "IMPROVEMENTS IN APPARATUS FOR REGULATING THE SUPPLY OF GAS TO
GAS BURNERS FOR STREET LAMPS AND OTHER PURPOSES.".

page_text: The object of my Invention is to obtain a regular supply of gas in the burners,
notwithstanding any irregularity in the pressure of the gas in the mains.
My improved apparatus consists of a vessel fixed to the supply pipe; in this
vessel are two flexible diaphragms supporting a metal tube, to the lower end of
which is attached a valve; the seating of this valve is formed in the lower part of
the vessel; the lower end of the metal tube is perforated and the upper end is in
direct communication with the pipe leading to the burner or burners. The gas
from the main passes direct to the lower side of the bottom diaphragm; it then
passes through the perforations in the lower end of the hollow tube, and then
direct to the upper side of the top diaphragm, and thence to the burner or
burners.
When the pressure of the gas in the main is in excess, the valve is partially closed
by the action of the gas on the bottom diaphragm, thereby reducing the supply to
the burner or burners.
And in order that my Invention may be fully understood and readily carried
into operation, I will proceed to describe the accompanying Sheet of Drawings, in
which Fig. 1 is a vertical section, Fig. 2 an elevation, and Fig. 3 a plan of my
improved apparatus.
a is the lower part of a vessel which is fixed to the gas supply pipe; b is the
intermediate part of the vessel which is screwed to the part a, and c is the upper
part of the vessel screwed to the part b. To the vessel a is fixed the outer rim of
the flexible diaphragm d, and to the vessel b is fixed the outer rim of the flexible
diaphragm e; both these diaphragms are made, by preference of leather, but they
may be made of any other suitable material; the inner rims of the diaphragins are
secured to and support the metal tube f, to the lower end of which is attached the
valve g; the seating of this valve is formed in the vessel a. The lower end of the
tube is perforated and the upper end of the tube is in direct communication with
the pipe / leading to the burner i. The chamber j between the two diaphragms is
in communication with the atmosphere through the holes b¹ in the side of the
vessel b. When the gas is turned on it enters the chamber k under the diaphragm d,
and passes through the perforations in the lower part of the tube f; it then passes
up the said tube and the pipe h to the burner i.
When the pressure of gas in the main is higher than usual, the action of the gas
on the diaphragm d raises the tube f, and with it the valve g, thereby partially
closing the valve and reducing the supply of gas to the burner, and the contrary
action takes place when the pressure of gas in the main is lower than usual.
By this means the supply of gas to the burner is at all times regular, notwith-
standing the variations in the pressure in the main pipes.
Having thus stated the nature of my Invention and described a convenient
mode of performing the same, I wish it to be understood that I do not intend to
limit myself to the details given, as the same may be varied or modified; I would
also remark that instead of applying a separate regulating apparatus to each
burner, as shewn, I also intend to apply one regulating apparatus to any con-
venient number of burners; I claim the improved apparatus shewn and described
consisting of two flexible diaphragins acting on a valve for regulating the supply of
gas to the burner or burners.
In witness whereof, I, the said John Newton, have hereunto set my hand and
seal, this Twenty-second day of October, One thousand eight hundred and
seventy-seven.