Improvements in Regenerative Petroleum Lamps.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements in Regenerative Petroleum Lamps.
1, FRIEDRICH LUDWIGS, of 4 Fliederstrasse, Berlin, in the Empire of Germany,
Metalware Manufacturer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to a petroleum lamp provided with gasifying or vapourizing
apparatus in which the preparatory heating of the gasifier is effected by the
combustion of petroleum by means of an asbestos wick.
According to this invention the petroleum is placed in a reservoir arranged on
the upper part of the lamp, and passes therefrom through a tube, provided with a
two-way tap, either into a tube leading to the preparatory or starting heater or
into a tube leading to the gasifier. If the said tap is so adjusted, by means of a
lever on its plug or otherwise, that the petroleum is directed into the starting
heater, it passes through a bifurcated pipe into a burner filled with asbestos, which
forms the said starting heater, is there lit, and burns in a cylinder above the said
burner. Air is led to the flame of the starting heater through suitable openings at
the bottom of the lamp. When the gasifier is sufficiently heated by the starting
heater or burner the two-way tap is turned so as to shut off the supply of petroleum
to the starting burner, and allow it to flow through a forked tube into a ring-shaped
retort forming the gasifier which rests on a plate heated by the starting burner.
In this ringshaped gasifier, as well as in a cylindrical ring leading downwards
therefrom, the petroleum is gasified, and passes out in that condition through
certain openings where it is lighted and is diverted outwards in the form of an arch
generating great lighting power, and at the saine time sufficient heat to gasify
uniformly the petroleum flowing from the reservoir into the gasifying retort. The
air for supporting combustion enters through suitable openings in the lamp, passes
round the cylinder of the gasifier, and is so directed as to cause the flame of the
burning gas to diverge outwards in the arched form as above described.
Dated this 16th day of March 1896.
Improvements in Regenerative Petroleum Lamps.
1, FRIEDRICH LUDWIGS of 4, Fliederstrasse, Berlin in the Empire of Germany,
Metal Ware Manufacturer, 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 a petroleum lamp provided with gasifying or vaporising
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page_text: apparatus in which the preparatory heating of the gasifier is effected by the
combustion of petroleum by means of an asbestos wick.
The invention will be described with reference to the accompanying drawing
which shows the improved lamp in vertical section.
According to this invention the petroleum is placed in a reservoir a arranged on
the upper part of the lamp, and passes therefrom through a tube b, provided with
a two-way tap c, either into a tube d leading to the preparatory or starting heater g
or into a tube e leading to the gasifier n. If the said tap c be so adjusted, by
means of a lever on its plug or otherwise, that the petroleum is directed into the
starting heater, it passes through a bifurcated pipe f into a burner g filled with
asbestos, which forms the said starting heater, is there lit, and burns in a cylinder i
above said burner. Air is led to the flame of the starting heater through suitable
openings h at the bottom of the lamp. When the gasifier is sufficiently heated by
the starting heater or burner g the two-way tape is turned so as to shut off the
supply of petroleum to the starting burner, and allow it to flow through a forked
tube m into a ring-shaped retort n forming the gasifier which rests on a plate o
heated by the starting burner g. In this ring-shaped gasifier n, as well as in a
cylindrical ring pleading downwards therefrom the petroleum is gasified, and passes
out in that condition through openings q where it is lighted and is diverted
outwards in the form of an arch, generating great lighting power, and at the same
time sufficient heat to gasify uniformly the petroleum flowing from the reservoir
into the gasifying retort n. The air for supporting combustion enters through
suitable openings s and k in the lamp, passes round the cylinder of the gasifier, and
is so directed as to cause the flame of the burning gas to diverge outwards in the
arched form as above described.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. A regenerative petroleum lamp characterised by the preliminary heater which
is formed as an annular burner with separate air supply for vaporising the
petroleum which feeds the main flane, being fed by a special pipe independently
of the main flame, whereby the preliminary heater may be used for a suitable
period independently of the main flame, the arrangement being such that the feed
pipe of the preliminary heater is closed by the opening of the feed pipe of the
main flame substantially as herein before set forth.
2. In a regenerative petroleum lamp, the combination with the main burner
feed-pipe, of an independent feed pipe leading to a preliminary heater, and a
two-way cock connected to both feed pipes, whereby the one feed pipe is opened
when the other feed pipe is closed, substantially as described.
3. The general construction and combination of parts taken as a whole forming
the improved regenerative petroleum lamp substantially as described and
illustrated.
Dated this 8th day of December 1896
WM. P. THOMPSON & Co.,
Of Lord Street, Liverpool, Agents for the Applicant.