Improvements in Atmospheric Gas Burners.
Year: 1899

page_text: Date of Application, 18th Sept., 1899
Complete Specification Left, 18th June, 1900-Accepted, 18th Sept., 1900
PROVISIONAL SPECIFICATION.
Improvements in Atmospheric Gas Burners.
T. THEODORE ELIAS SINNBERG, of 10, Vicarage Road, Camberwell, London, S.E.,
Engineer, do 'hereby declare the nature of this invention to be as follows:-
_
My invention relates to improvements in atmospheric gas burners particularly
those used for incandescence gas lighting, and has for object to enable the gas
supply and air supply to be regulated both absolutely and also relatively to one
another, so as to secure the best possible result in illumination.
My invention consists essentially in providing a pair of valves capable of being
readily and independently adjusted, for controlling the admission of the gas and
air supplies respectively.
According to my invention the lower end of the mixing tube wherein the
streams of gas and air are intimately mingled on their way to the ignition orifice
is provided with a disc valve mounted upon a nut screwing upon the inner
concentric gas supply tube so as to be capable of being raised or lowered at will
for the purpose of varying the area of the annular opening at the bottom of the
mixing tube through which the supply of air is drawn and thus of regulating such
air supply. The upper end of the gas supply tube, terminating as usual within
the mixing tube, is not closed as usual by a diaphragm containing a number of
minute perforations (usually called an injector) but is open and forms the seat
for a conical valve whereby the area of the aperture may be varied at will, said
valve being for this purpose connected by a suitable framework of rods or other-
wise, passing downwards through the above described disc valve, with a nut
screwing upon the gas supply tube between the disc valve and the nut which
carries the latter, the arrangement being such that the nuts by means of which
the two valves are regulated are both readily accessible for purposes of régulation,
and are capable of being adjusted independently of one another.
It will thus be seen that my invention obviates the objections incidental to
atmospheric gas burners of the ordinary types used for incandescence gas light-
ing. Such burners (whether arranged for low or for high pressure) being pro-
vided with injectors which are only capable of being regulated approximately by
experienced persons with much trouble, so that if originally constructed to suit
a particular pressure of gas these burners give an inferior result when used
with gas at a different pressure. On the other hand a burner provided with my
improvements can be readily adjusted to suit any pressure of gas thus, in
incandescence gas lighting, enabling the best possible illuminating effect to be
<5
obtained from the mantle, and enabling what is known as intensified gas light"
to be obtained with gas of the ordinary low pressure commonly in use, without
the employment of a compressor.
Dated this 18th day of September 1899:-

page_text: Improvements in Atmospheric Gas Burners.
J. THEODORE ELIAS SINNBERG, of 54 and formerly of 10, Vicarage Road, Camber-
well, London, S.E.. Engineer, 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:-
My invention relates to improvements in atmospheric gas burners used for
incandescent lighting, and has for object to enable the gas supply and air supply
to be independently regulated by means of valves capable of being adjusted
independently each of the other so as to enable the variations of pressure to
which the gas may be subject to be readily compensated and the best possible
result in illumination to be always attained.
The provision of a valve for shutting off the air supply admits of the use of a
temporary burner attachment whereby to enable an ordinary luminous flame
to be temporarily obtained without removing the atmospheric burner should the
incandescent mantle beconie unserviceable when a new one is not at hand for the
purpose of renewal.
Reference is to be had to the accompanying drawings forming part of this
specification wherein Figure 1 is an axial vertical section of a complete atmos-
pheric burner provided with independent air and gas regulating valves. Figures 2
and show axial sections of two forms of burner attachment adapted to be
fitted on the head of the incandescent burner for burning gas without previous
admixture of air.
The mixing tube A wherein the streams of gas and air are intimately mingled
on their way to the ignition orifice is supported by spider arms a fixed to the gas
supply tube and the lower end of said mixing tube A is adapted to form the
seat for a disc valve B which is carried by spider arms connected to a nut C
fitted to screw upon a threaded part of the gas supply tube 1) so as to enable the
valve to be thereby raised or lowered at will for the purpose of regulating the
admission of air through the annular opening between the valve and its seat.
The upper end of the gas supply tube 1 is not closed as usual by a perforated
diaphragm (usually called an injector), but is adapted to form the seat for a
conical valve E whereby the area of the gas emission aperture may be varied
at will, without however thereby altering the area of the air admission orifice or
necessitating any readjustment of the air admission valve, said valve E being for
this purpose carried by spider arms at the upper end of a tube G that passes
freely through the disc valve B and is provided with a nut F fitted to screw upon
the upper part of the gas supply tube D, the arrangement being such that the
nuts and Fare both readily accessible from below for independently adjusting
the valves B and E without disturbing the burner or causing any oscillation of
the mantle which would lead to its speedy destruction.
The gas is emitted beneath an upwardly convergent nozzle e fitted over the
upper end of the tube G for the purpose of directing the issuing gas, in the
form of a jet, upwardly and axially through the mixing tube A. The tube G
is cylindrical and the disc valve B makes a working fit about it, so that whilst
each is capable of adjustment independently of the other no air can pass between
the valve B and tube G.

page_text: The injectors of atmospheric burners as usually constructed (whether designed
for low or high pressure) are only capable of being regulated with much trouble
and by repeated trials involving the dismounting and replacing of the burners,
and being constructed to suit a particular pressure of gas these burners give an
inferior result when the gas pressure varies or when used with gas at a different
pressure to that for which they are regulated.
By means of the independently adjustable valves for the gas and air the
burner can be readily regulated whenever necessary not only without removal
from the gas fitting, but without any movement or disturbance of the burner or
mantle thus enabling the best possible illuminating effect to be always ensured
und permitting of obtaining an ample supply both of gas and of air without the
use of a chimney if desired.
In order to enable an ordinary luminous flame to be temporarily obtained from
the gas without previous admixture of air, should the mantle become unserviceable
and another not be available I provide burner attachments such as shown in
Figures 2 and 3 adapted to be fitted on the head of the atmospheric burner from
which the air supply is then entirely shut off by closing the valve B.
The burner shown in Figure 2 is an ordinary batswing or fish-tail nipple I
carried by a cap J adapted to screw on to the head H of the mixing tube A,
whilst the burner shown in Figure 3 is also a cap K adapted to be screwed on
the head H and provided with an annular series of minute orifices whence the
gas issues and is burnt as with an ordinary ring burner.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is:-
1. The combination with an atmospheric gas burner for incandescent lighting.
of valve respectively adapted to control the air supply and the gas supply to the
mixing tube of the burner, the said valves being adjustable independently each
of the other (without the adjustment of the one affecting the regulation of the
other and without disturbing the burner or mantle) by means of separate nuts
screwing on the gas supply tube and accessible from below, substantially as and
for the purpose specified.
2. In an atmospheric burner the combination of a valve for regulating the gas
supply and of a valve adapted to close against a seat at the lower end of the
mixing tube, the two valves being carried by separate nuts, screwing on threaded
parts of the gas supply tube so as to be independently adjustable, the mixing
tube being stationary and mounted on an open frame so as to give access to the
nuts within said frame and the air valve being connected to its nut by an open
frame so as to give access to the gas valve nut, substantially as specified.
3. The combination with an atmospheric gas burner of a tube screwing on the
gas supply tube and having a dome-shaped perforated upper end, a plug valve
depending from the upper end of said tube and adapted to enter a seat in the
gas supply tube, and a jet nozzle surrounding the upper end of the valve carrying
tube, substantially as described.
4. In an atmospheric burner for incandescent lighting the combination with a
stationary mixing tube, and a gas supply tube, of a valve for regulating the
admission of air to the lower end of the mixing tube, a tube adjustably mounted
en the gas supply tube and passing through the said valve, the upper end of the
iube being perforated, a valve secured to the inner face of the top of the said tube
and adapted to regulate the flow of gas through the gas supply tube and a jet.
nozzle surrounding the upper end of the valve carrying tube, substantially as
described.
5. An atmospheric gas burner provided with a disc valve closing against the
lower end of the mixing tube adapted to shut off the admission of air to the
mixing tube and adapted to receive a supplementary burner to be temporarily

page_text: fitted on to the head of the atmospheric burner in lieu of the mantle and mantle
support, for burning gas unmixed with air. substantially as specified.
Dated this 18th day of June 1900.
A. M. & WM. CLARK,
Chartered Patent Agents, 53, Chancery Lane, London.