Combined Governor and Self-lighting Gas Burner.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Combined Governor and Self-lighting Gas Burner.
JAMES TURNER HARDY, of 36, Woodland Road, Norton Woodseats, Plated
Cutlery Manufacturer, do hereby declare the nature of this invention to be
as follows:-
That all street lamps in a city can be lighted or turned out simultaneously
at the gas works without the necessity of going round to the separate lamps.
Number 1 is a small diaphragm and No. 2 is a large diaphragm both very thin
and sensitive, of skin oildressed.
A is the gas tube screwed for 38 brass tube.
B is an annular space open to the air.
The action of the apparatus is, the gas passing up tube A presses on the dia-
phragms thereby raising valve 3; part of the gas in the meantime passing up
screwed tube 6 and coming out of aperture above the diaphragm, passes between
cones 2 and 3 and their seats 4. Sufficient gas always remains in chamber to supply
ignition tube 7 whose flame is regulated by screw 8. When the pressure is excessive
the cone 2 rises and partly closes valve seat 4 thereby regulating the consumption
of gas. Now by using discs of light metal 5 on tail of screwed tube 6 secured by
locknut, each disc or weight representing 10th of an inch of gas pressure, and by
using a number of the discs, as elevation and position require, the apparatus will
work automatically by the pressure delivered from gas works.
The whole apparatus is based on the law that " gas pressures increase with every
10 feet of rise one tenth of an inch and the reverse 1/10th of drop for every 10 feet
of fall. It is evident the pilot light 7 always alight will automatically light the
gas when the pressure for night consumption is turned on at works, putting itself
out when pressure is taken off.
The whole thing to ensure success must be as light as possible. The shape is
of no consequence.
1000
J. T. HARDY,
Applicant.
I, JAMES TURNER HARDY, of 36, Woodland Road, Norton Woodseats, in the
County of Derby, Cutlery Manufacturer, do hereby declare the nature of my said
invention and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement:-
When I filed my Provisional Specification it was accompanied by a drawing

page_text: which roughly illustrated the general principles of my invention, but in carrying
my said invention into effect, I have somewhat modified the construction of the
apparatus without however departing from the principles therein set, forth.
My invention will be better understood on reference to the accompanying sheet
of drawings in which,
Fig. 1 is an external elevation of my combined governor and self lighting gas
burner.
Fig. 2 being a section of the same
10
The same letters refer to similar parts throughout the several views.
The apparatus consists of a metallic casing, a, divided into several compart-
ments, a lower compartment, b,, which may, be called the supply chamber is pro-
vided with a connection, e, by which it can be fixed to an ordinary gas lamp or
fitting.
71
The chamber, d, immediately above the last named may be called the atmos-
pheric chamber as it is open to the atmosphere by means of a slit or inlet, e,
formed in the wall of the outer casing, and the chamber, f; above this may be
called the regulating chamber, the fourth and last chamber, g, may be called the
burner chamber.
1
The first named supply chamber, b, is separated from the second, or atmospheric
chamber, d, by a flexible oil dressed leather diaphragm, h, and the second or
atmospheric chamber, d, is also separated from the third or regulating chamber, f,
by another flexible oil dressed leather diaphragm, i. The last named diaphragm
however contains only half the area of the first named.
The regulating chamber, f, is separated from the burner chamber, g, by a divi-
sion, j, in which is provided a central passage with a double faced valve seat.
Passing through the centre of the last named diaphragms is a hollow metallic
tube, k, which is secured to the diaphragms by gas tight collars, 1, 1, and is closed
at both ends, but apertures, m, m, are provided through which the gas can pass
from the supply chamber, b, through the tube into the regulating chamber, f,
at the top end of the tube, I provide a stalk, n, carrying two conical valves, o,
and p, the apexes of the cones facing each other and the stalk connecting them
passing centrally through the orifice in the two faced valve seat previously
referred to. The lower end of the tube is provided with a stalk, q, onto which
may be slipped and secured by a nut or otherwise a number of discs or
weights r, r.
The burner, s, which may be a Brays, or other convenient type is screwed into
the burner chamber in the ordinary way and alongside of the burner I place
a pilot jet, i, attached to an ignition tube, tt, which passes into the regulator
chamber, f. This pilot jet pipe, t¹, is provided with a small regulator, u.
The action of this improved and modified apparatus is as follows.
Having adjusted the discs or weights, r, r, to adapt the apparatus for the
night pressure in the locality where it is to be used, it will be found that during
the day time, when under low pressure, the weights, r, at the bottom of the
tube, k, cause the tube to fall until the valve, p, closes upon its seat and cuts off
the supply of gas to the burner. The supply to the pilot jet however is provided for
from the regulator chamber, f, which is always in communication with the supply
chamber, b, through the tube, k, so that during the day, the pilot jet only remains
lighted. When the night pressure is turned on the lower diaphragm, h, is forced
upwards and being of so much larger area than the diaphragm, i, the tube, k, with
its valves, and o, are raised.
P
As soon as the valve, p, is opened the gas from the
regulating chamber, f, passes to the burner, s, and is ignited by the pilot jet, t.
The valve, o, is so placed on the stalk, n, that under normal pressure it does not
reduce the opening between the supply chamber, f, and the burner chamber, g,
but if the pressure became abnormal then the valve, o, would reduce the opening
in proportion to the pressure and so regulate the supply of gas to the burner but
at no time would it entirely close the orifice, this only being effected by the top
valve, p, when under day pressure.

page_text: From the foregoing it will be seen that when my improved apparatus has once
been regulated and the pilot jet lighted, as soon as the night pressure is turned
on the main burner will be automatically lighted and when the pressure is
lowered for day consumption the main burner will be automatically extinguished
and likewise when the pressure becomes abnormally high, the supply to the main
burner will be automatically regulated.
I am aware that flexible diaphragms actuating a conical valve have been
employed in gas regulators wherein the varying pressures of the gas supply have
been utilised for regulating the flow of gas to a burner and also that similar
appliances in conjunction with a pilot jet have been employed for automatically
igniting and extinguishing the main light, and I lay no claim to novelty in the
application of such appliances in my present invention but
Having now particularly described and ascertained the nature of my inven-
tion and in what manner the same is to be performed I declare that what I do
claim is:-
1. In an apparatus for regulating, lighting and extinguishing gas lights, the
particular arrangement and combination of parts and appliances, comprising a
supply gas chamber, an atmospheric chamber, a gas regulating chamber and a
burner chamber, arranged in tiers one above the other, the gas supply chamber,
the atmospheric chamber and the gas regulating chamber being separated by two
flexible diaphragms, and the burner chamber being separated from the regulating
chamber by a division containing an upper and a lower valve seat, the lower
diaphragm which separates the supply chamber from the atmospheric chamber
being of considerably larger area than the upper diaphragm which separates
the atmospheric chamber from the gas regulating chamber; a tube passing through
and secured to the said diaphragms connecting the gas supply chamber with the
regulating chamber; two valves connected by a stalk to the top end of the last named
tube, one valve fitting the valve seat on the upper side of the division between the
burner chamber and the regulating chamber and the other valve fitting the valve
seat on the under side of the said division. A stalk on the lower end of the
connecting tube to which may be attached adjusting weights for regulating the
action of the apparatus, by means of which in conjunction with the pilot jet,
ignition tube and other appurtenant fittings the main burner may be lighted,
extinguished and regulated automatically by the pressure or varying pressures
of the main gas supply, in the manner and for the purposes substantially as
herein described and illustrated.
Datad this 26th der of Al 1000
R. HEBER RADFORD,
Agent for the Applicant.