Improvements in Regenerative Hydro-carbon Lamps or Lanterns.
Year: 1887

page_text: Improvements in Regenerative Hydro-carbon Lamps or Lanterns.
We, LASSLO CHANDOR of No. 62 Grochowo, St. Petersburg. Russia, Gentleman,
and CARL HEINRICH NÖLTING of Mincing Lane, London, Merchant, do hereby declare
the nature of our said 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 an improved regenerative lamp or lantern for burning
hydro-carbons without the employment of glass or other cylinders, said invention
being applicable to street, hall and other lamps as well as for domestic purposes.
The lamp constructed according to this said invention can be arranged so as to
burn all kinds of mineral oil with petroleum, kerozine &c.
As aforementioned the lamp burns without employing a chimney, does not smoke
and emits no offensive smells as a perfect consumption of the hydro-carbon is effected
and the heat of the flame being quite sufficient to warm the air fed to the said flame.
Various attempts have been made to obtain a good free burning hydro-carbon light
which could be employed for lighting streets in smaller towns, villages, factory and
other yards, in place of gas, but up to the present time without success so that, where
no gas could be obtained petroleum burners with glass cylinders or chimneys were
used. The enormous amount of breakage in cylinders has however proved a very
serious drawback and besides this the illuminating power of the small round burners
generally employed for such purpose is very small. Now in order to overcome all
the difficulties hitherto experienced, we have invented our improved regenerative
lamp for hydro-carbons, which requires no cylinder or chimney.
In the accompanying drawings,
Figure 1 is a vertical section of our improved lamp.
Figure 2 is a part section and elevation of the burner on an enlarged scale.
Figure 3 is a horizontal section on the line A-B in Figure 1.
Figure 4 a like section on the line C-D of same Figure.
The reservoir 6 of the lamp is arranged on the double bottom a of the same and is
provided with a double mantle c for the circulation of the air. This mantle c in com-
bination with the metallic ring d¹ of the burner d, causes the necessary air to pass
through the perforations of the burner casing, through the sieve like partition m,

page_text: around and through the upper part of the wick sheath to the flame. The bent tubes e
are in communication with the space a beneath the hydro-carbon reservoir and serve
not only as strengthening ribs for the lantern casing, but also for leading the air
heated by the lamp beneath the same and to the flame. These tubes e are at their
upper ends in communication with the tube f, in which a tube g with a funnel like
extension is fitted.
The heated air above the flame rises upwardly through these tubes g, f, and through
the tubes e, and casing c, d to the burner. are perforations at the lower part of the
lamp for the admission of fresh air. The superior part of the outer casing of the
street lamp is of square or other section and is provided with a double hood or
cowl consisting of two sheet metal casings, one arranged within the other, in such
manner, that the casing & can be adjusted on the casing i so as to regulate the upward
draught of air, around the casing i and between the same and the casing k. The
upper part of the cowl is provided with the square or other cap 1, which will prevent
all down draught and at the same time cool the gases passing off from the lamp.
The operation of my improved lamp is as follows :-
The pure air entering through the perforations at the lower part of the lamp is
heated by the flame proceeding from the burner d, ascends in heated condition
through the tubes g, f, and passes into the tubes e from whence the same is led into
the space a and between the double walls of the reservoir to the flame. This heated
air serves to promote the consumption of the hydro-carbon and comingles with the
fresh air entering through the perforations h and any products of combustion issuing
from the burner d, whereby the same is somewhat cooled, the superheated air, that is,
the exhausted air, passes off laterally of the funnel into the cowl i, k, l, and thus into
the open air. In this manner a perfect circulation is established and a continuous
regeneration of the spent air and gases produced, so that a perfect combustion of the
hydro-carbon is caused.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim and desire to secure by Letters Patent is :-
A regenerative hydro-carbon lamp and lantern without chimney, for burning all
kinds of mineral oils, characterised by:
--
1. The combination of the outer frame of the lamp, provided at its base with per-
forations for admitting fresh air into the hollow bottom a of which the tubes e enter,
which serve to lead the air heated by the flame and intermixed with the products of
combustion, to the hollow bottom a and mantle c, by means of the tubes g and f, so
that said heated air reaches the flame from below through the perforated partition m
in an equably distributed condition.
2. The device for regulating the air draught, consisting of two sheet metal
casings k, i, which are adjustably arranged one within the other and thus form a
hollow space for the circulation of air, the square cap 1 serving to cool said circulating
air and at the same time prevent all down draught, substantially as described in the
foregoing specification and shown on the accompanying drawings.
Dated this 18th day of June 1887.