Year: 1886

page_text: 7L
Date of Application, 27th May, 1886.
Complete Left, 28th Feb., 1887.
Complete Accepted, 29th Mar., 1887.
1- KARL KUBENIK of IX, Währingerstrasse 16, Vienna, in the Empire of Austria,
Doctor of Medicine, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in round-burners for petroleum and other
lamps, and the improvements consist in a special mode of forming in the sides of the
burner the apertures through which air is to be admitted for supporting combustion on
the inside of the circular flame the said special mode having for its object to facilitate
the manufacture of the said burners.
According to this invention, a round-burner is formed of two flat-burners, preferably
arranged parallel to each other, and having their upper portions bent inwards half
cylindrically so as to meet at their edges and form a closed cylinder of small height.
In the portion of both burners where their narrow lateral portions would be in contact
the said parts are cut away so that the hollow spaces of both burners are united into
one annular hollow. It will be obvious that two flat wicks must be used for this
burner, one in each flat tube.
G. F. REDFERN,
4, South Street, Finsbury, London,
Agent for the Applicant.

page_text: lamps.
Hitherto round burners for petroleum and other lamps have been made with a
triangular opening at the side for the admission of air, whereby a difficulty has been
experienced in manufacturing the burners besides which a sufficient supply of air was
not admitted for properly supporting combustion.
My improvements consists in a special mode of forming in the sides of the burner
the apertures through which air is to be admitted for supporting combustion on the
inside of the circular flame the said special mode having for its object to facilitate the
manufacture of the said burners.
According to this invention a round-burner is formed of two flat tubes preferably
arranged parallel to each other, and having their upper portions bent inwards half
cylindrically so as to meet at their edges and form a closed cylinder of small height.
In the portion of both burners where their narrow lateral portions would be in contact
the said parts are cut away so that the hollow spaces of both burners are united into
one annular hollow. It will be obvious that two flat wicks must be used for this
burner, one in each flat tube.
In order to enable my invention to be fully understood I will proceed to describe.
how it can with advantage be carried into practice by reference to the accompanying
drawing in which figure 1 represents a vertical section partly in elevation of a lamp
burner constructed according to my invention the section being taken on line Z, Z, of
figure 2 which is a plan of the burner figure 3 is a horizontal section on line X, X,
of figure 1 figure 4 is a horizontal section on line y, y, of figure 1 and figure 5 is a
plan of the burner with the chimney holder attached; b, b, are the two flat vertical tubes
which are fixed in the screw threaded part a, of the burner which screws into the oil
reservoir the tubes 1, b, serve to receive the wicks e, e, and are provided with
slots 1, 0, to receive the toothed wheels for raising and lowering the wicks the said
wheels gear with each other and one of them d, has a spindle e, which extends to the
outside of the burner and is provided with a knob or button f, for turning the same
by the fingers; the spindle e', of the other wheel: d', does not extend beyond the
sides of the part a, of the burner.
The tubes b, b, are continued above the screw threaded part a, by the tubes g, g, the lower
parts of which are formed like the tubes, b, but the upper portions are curved inwards
into a semi-cylindrical section so that their narrow lateral portions or edges meet, the
said portions (as shewn clearly in figure 2) at this part being cut away and the two

page_text: tubes ; ; soldered together in such a manner that the upper part of the burner has
the appearance of a hollow ring.
By this construction of round burner the parts of the wicks are not liable to be
raised unevenly as they usually are in existing burners having a single wick because
the resistance and propelling power are equally divided and the burner is supplied with
two diametrically opposite currents of air.
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. A round burner for petroleum and other lamps consisting of two flat tubes the
upper portions of which are curved into a semi-cylindrical shape and their edges
united.
2. The improved lamp burner hereinbefore described and illustrated in the accom-
panying drawing.