Improvements in Gas Lamps, and in the Extraction and Destruction. of Sewer Gas.
Year: 1894

page_text: Date of Application, 25th Apr., 1894
Complete Specification Left, 24th Jan., 1895-Accepted, 2nd Mar., 1895
PROVISIONAL SPECIFICATION.
Improvements in Gas Lamps, and in the Extraction and Destruction.
of Sewer Gas.
I, JOSEPH EDMUND WEBB of 223 New John Street West, Hockley,
Birmingham, Builder and Contractor, do hereby declare the nature of this
invention to be as follows:-
-
This invention relates to improvements in the extraction from sewers of the
gases or noxious vapours collected or generated therein, and the destruction of
such gases prior to their passing into the atmosphere. It has been found that the
deleterious effects of such gases may be destroyed not only by passing them
through flame but also by submitting them to a high temperature. It has also
been found that when the gases are drawn out from the sewer by the burning of
ordinary gas a sudden flushing of the sewer might prevent any sewer gas from
escaping, and thus momentarily cause the gas jets to be extinguished.
The object of this invention is to obviate the drawbacks above indicated and
at the same time to produce a lamp head or frame which may be used for other
purposes. To this end it is proposed to provide a lamp head connected by a pipe
with the sewer and practically scaled at all other points except at the discharge
opening. Within the lamp head are a series of flat flame or other burners supplied
from the gas main in the usual manner. A bye-pass with a jet burner is also
provided, and the air to support the combustion of this particular jet is provided
by a small pipe passing through the casing into the air. The lamp is provided
with the usual glasses so as to adapt it for street lighting. Surmounting the
glass is a curved, funnel, or other shaped head preferably enamelled or lined with
heat deflecting and radiating material, the object being to produce an intense heat.
at the point of combustion. As any such heat would be rapidly transmitted by
radiation it is proposed to provide the head with an external sealed or other form
of air jacket, or to cover it with non-heat conducting material.
Deted the 25th dev of April 1894
PHILIP M. JUSTICE,
55 & 56, Chancery Lane, London, Chartered Patent Agent,
For the Applicant.
Improvements in Gas Lamps, and in the Extraction and Destruction
of Sewer Gas.
I, JOSEPH EDMUND WEBB of 223 New John Street West, Hockley,
Birmingham, Builder and Contractor, 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 relates to improvements in the extraction from sewers of the

page_text: gases or noxious vapours collected or generated therein, and the destruction o
such gases prior to their passing into the atmosphere.
It has been found that the deleterious effects of such gases may be destroyed
not only by passing them through flame but also by submitting them to a hig
temperature. It has also been found that when the gases are drawn out from the
sewer by the burning of ordinary gas a sudden flushing of the sewer might prevent
any sewer gas from escaping, and thus momentarily cause the gas jets to b
extinguished.
The object of this invention is to obviate the drawbacks above indicated and
at the same time to produce a lamp head or frame which may be used for
other purposes.
To this end it is proposed to provide a lamp head connected
by a pipe with the sewer and practically sealed at all other points except at
the discharge opening. Within the lamp head are a series of flat flame or
other burners supplied from the gas main in the usual manner. A bye-pass
with a jet burner is also provided, and the air to support the combustion of
this particular jet is provided by a small pipe passing through the casing into
the air. The lamp is provided with the usual glasses so as to adapt it for
street lighting. Surmounting the glass is a curved, funnel, or other shaped
head preferably enamelled or lined with heat deflecting and radiating material,
the object being to produce an intense heat at the point of combustion. As
any such heat would be rapidly transmitted by radiation it is proposed to
provide the head with an external sealed or other form of air jacket, or to
cover it with non-heat-conducting material.
An advantageous method of applying the invention is illustrated in the
accompanying drawings in which Fig. 1 is a sectional elevation including the
sewer and gas connections and Fig. 2 is a sectional elevation on a larger scale
of the lamp head and burners.
In said drawings A is the main sewer, B the connecting pipe terminating at the
base of lamp post C; travelling through which and hermetically attached to pipe B
is pipe D terminating at a point beneath the main gas jets E which are supplied
from the gas main F through meter G and pipe H. A small bye pass jet M is
kept constantly burning the air to support combustion, being fed thereto through
a small air pipe N, the object being to relight the main jets E if they should be
temporarily extinguished owing to a sudden flushing of the sewers during a storm,
or at other times when it would be impossible to draw the requisite air or gas from
the sewer to support the combustion of the main jets.
The lamp when used for illuminating purposes will be provided with the usual
glass sides I which are hermetically sealed either to the top of pipe D or to
post C if that is air-tight. Surmounting the glass is a curved funnel shaped
head J preferably enamelled or lined with heat deflecting material, the object
being to produce an intense heat at the point of combustion, say from six to
eight hundred degrees Fahrenheit. As any such heat would be rapidly transmitted
by radiation it is proposed to provide the head J with an external sealed air jacket K,
or to cover it with non-heat-conducting substance. An outlet L is provided for
the escape of the products of combustion.
With this construction of parts it will be noted that the air or gas to
support the combustion at the main jets or burners E must be drawn from
the sewer, and by experiment it has been found that with ordinary flat flame
burners such as are employed in street lighting the sewer gas can be drawn a
distance of from five hundred to a thousand yards, and as it is compelled to
pass practically through the flame, or at all events through a sealed chamber in
which the temperature is; as stated, very considerable, all germs and noxious
qualities of such sewer gas are destroyed before eventually passing out through
the opening L to the air.
Additional reflectors and radiating surfaces Omay be employed when deemed
necessary, either as shown for reflecting the light, or made concave for radiating
the heat toward the burners.

page_text: Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what I
claim is :-
1. In devices for extracting and destroying sewer gas the combination with the
sewer and gas connections of main gas jets, a bye-pass jet with a separate air
supply, a lamp head sealed to the sewer connection but provided with a suitable
outlet and a deflecting hood, substantially as described.
2. In devices for extracting and destroying sewer gas the combination with the
sewer and gas connections of main gas jets, a separate air supply for at least one
burner, a lamp head sealed to the sewer connection but provided with a suitable
outlet, a deflecting hood and a non-heat-radiating jacket or covering, substantially as
described.
3. The improved lamp head provided with a heat deflector and a non-heat-
radiating jacket, substantially as described.
4. The improved arrangement of apparatus for the extraction and destruction
of sewer or other noxious gases, substantially as described.
Dated the 09-1 S
1005
PHILIP M. JUSTICE,
55 & 56, Chancery Lane, London, Chartered Patent Agent,
For the Applicant.