Improvements in or relating to Incandescent Gas Burners.
Year: 1898

page_text: Date of Application, 30th June, 1898-Accepted, 3rd Sept., 1898
COMPLETE SPECIFICATION
Improvements in or relating to Incandescent Gas Burners.
A communication from G. DELIN, of Brussels, in the Kingdom of Belgium,
Manufacturer.
I, ALFRED JULIUS BOULT, of 111, Hatton Garden, in the County of Middlesex,
Chartered Patent Agent, 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:—
This invention relates to an improved incandescent gas burner characterised by
the improved position of the inlet for the gas relatively to the mixing chamber,
whereby air is drawn in in a rotary manner thus producing a richer and more
powerful mixture enabling an incandescence mantle to be used without a glass or
chimney, and a very great illuminating power to be obtained. The accompanying
drawings illustrated by way of example a burner according to this invention.
The gas enters through a tube A adapted to be screwed on to the end of a gas
supply pipe. The gas issues in a jet of cylindrical shape of a desired diameter and
rises passing through a central aperture C made in the arched cover D, which
closes the bottom of the tube E forming the mixing chamber. This tube E is
provided at its lower end with openings or perforations F for the admission of air,
which can be closed or opened to a greater or lesser extent by the movement of a
regulating ring G also provided with openings. The tube E is provided with a
metallic netting or perforated plate H, suitably arranged, and at the top forming
a сар L, similar metallic netting or perforated plate H¹. The novelty consists
chiefly in the arrangement of the arched bottom D called a suction plate provided
with a central orifice C through which the gas enters the mixing chamber E. It
ie essential that the diameter of this orifice C should be larger than that of the
gas outlet B in order to produce a rotary motion in the lower part of the mixing
chamber and consequently considerable suction of air through the orifices F which
suction is much stronger than has been hitherto possible. The mantle K does
not rest directly on the top L and does not lie close to it but rests on or over a
funnel shaped part J of a diameter larger than that of the tube E. The mantle
is suspended by a rod M. secured in a suitable manner to a bracket of the 'tube E
at N.
It will be seen that the burner chiefly differs from others hitherto known by
the arrangement of the gas outlet 13 relatively to the tube E constituting the
mixing chamber the escape of gas taking place in a cylindrical jet in front of a
suction plate provided with a central hole of a larger diameter than that of the
gas outlet, the air inlet holes being arranged above said plate. The result of this
construction is a considerable reduction of the consumption of gas and a phenomenal
increase of illuminating power.
Having now particularly described and ascertained the nature of this invention
as communicated to me by my foreign correspondent and in what manner the
same is to be performed, I declare that what I claim is:-
1. An incandescent gas burner characterised by the arrangement of the
relatively to a mixing chamber provided with air inlot
gas outlet

page_text: an arched plate provided with a central aperture larger than the gas outlet aperture
the passage and admission of the gas into the mixing chamber the gas producing a
rotary motion therein and causing a suction of air through the air inlet passages
and effecting a thorough mixture of gas and air substantially as described.
2. The combination and arrangement of parts constituting the complete incan-
descent gas burner substantially as described or illustrated in the accompanying
drawings.