Improvements in and relating to Apparatus for use in Incandescent Gas Lighting and Heating.
Year: 1899

page_text: Date of Application; 1st July, 1899-Accepted, 16th Dec., 1899
COMPLETE SPECIFICATION.
Improvements in and relating to Apparatus for use in Incandescent
Gas Lighting and Heating.
I, PAUL GREYSON DE SCHODT, of 15, Avenue Hannut, Namur, in the Kingdom
of Belgium, Engineer, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:
-
The high temperatures necessary for intensive incandescence may be obtained
in various ways. This invention relates to a method of obtaining flames of a
high thermic degree by means of the injection of superheated steam. The
result of this injection is in the first place to increase the suction of the air and
secondly to impart to the mixture the active force requisite for energetic com-
bustion and finally to obtain the decomposition of the steam beneath the mantle
in the presence of carbon. This decomposition gives rise to the production of
hydrogen and of oxide of carbon which combine with the air in developing a
very high temperature.
This invention is applicable to public or street lighting and also for private
or domestic lighting and heating."
I. PUBLIC LIGHTING.
In the upper portion of an ordinary street lamp (Figure 1) is arranged a small
boiler consisting of a boiler tube A and of a vessel K the two reservoirs being
in communication by means of an aperture L. Within the boiler tube is pro-
vided a float O the rod of which is formed by a needle rod P' which closes the
passage for the feed-water immediately the water level of the boiler is reached:
The boiler is supplied with water by means of water under pressure which
enters the boiler through the tube Y which is immersed in the circular reservoir E.
The reservoir E, which may be filled with water through the aperture I, is in
communication by means of the pipe G with the reservoir of compressed air H
see Figure 2. The pressure of air in this reservoir H is obtained by means of
a hand pump or in any other suitable manner.
When the burner is lighted, the small quantity of water contained in the
boiler A becomes rapidly vapourised, the steam produced passes into the vessel K
and thence through the tube B into the burner issuing therefrom through the
curved outlet R. An adjusting screw M is adapted to regulate the passage of
the steam.
The burner employed is one of the kind which consists of a parabolic mixing
suction device surmounted by the burner proper having the form of an inverted
truncated cone as employed for intensive illumination; as this form of burner
is well known it is unnecessary to describe it.
The admission of the gas takes place by way of a two-way cock Q enabling
ignition to be effected' by means of the row of perforations in the pipe S.
The cock Qis provided with a wheel g gearing with a pinion which displaces
the air cock T in such a manner that at the same time as ignition takes place
the boiler is supplied, whilst when the lamp is extinguished such supply ceases.
Paine 77

page_text: the suction of air and of imparting a sufficient active force to the mixture upon
its issue.
3. The employment of steam in a Bunsen burner for the purpose of obtaining
the decomposition of the water in contact with carbon in a nascent condition
when combustion takes place thus producing a considerable increase of heat.
4. The employment of combustible vapours or of other gases for the same
purpose in place of steam.
5. In combination with the construction described above, the employment
of a boiler provided with an automatic feed and surrounded by a vessel in which
the vapour produced is stored, the said boiler being heated by the burner as
described above and represented in the accompanying drawing.
Dated this 1st day of JULY 1898.
HASELTINE, LAKE & Co.,
45, Southampton Buildings; London, W.C.,
Agents for the Applicant.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.