An Improved Petroleum-burner adaptable both for Blue Flame and Illuminating Flame.
Year: 1897

page_text: Date of Application, 15th Nov., 1897
Complete Specification Left, 15th Aug., 1898-Accepted, 1st Oct.,
1898
An Improved Petroleum-burner adaptable both for Blue Flame and
Illuminating Flame.
I, MAX GRAETZ, of 31, Lausitzer Strasse, of Berlin, Kingdom of Prussia,
German Empire, Manufacturer, do hereby declare the nature of this invention to
be as follows:-
My invention relates to an improved petroleum-burner, and has for its object
to produce a burner capable of employment for incandescent light and at the same
time for the production of an illuminating flame as ordinarily obtained from
petroleum-burners hitherto in use.
In order to make my invention clear, 1 refer to the accompanying drawing,
in which similar letters denote similar parts throughout the different views, and
in which
Figure 1 is a sectional view of a burner provided with my cap adapted for
ordinary illumination purposes.
Figure 2 shows my improved cap for the production of a blue flame.
Figures 3 & 4 represent in plan and in lower section the burner cap shown in
Figure 2.
Figures 5 & 6 plan and lower section of the burner cap shown in Figure 1.
As hereinbefore mentioned, Figure 1 shows in vertical section a burner of known
construction, i.e. a burner provided with a cap for the production of an ordinary
illuminating flame. Said burner, however, when provided with my improved
cap, as shown in Figure 2, produces a blue flame, thus causing the said burner
to be used for the production of petroleum incandescent light.
The parts of the burner as also the conducting of the air to the wick will be
clear from the drawing without detailed explanation.
The construction illustrated in Figure 1 permits an air-current to pass centrally
through the wick-tube a and to be conducted to the flame by means of the flame-
disc ci
said flame-disc c being held in position by a ribbed body b (Figure 1) pro-
vided with a perforated edge cl.
A cap b (Figure 1) located at the top edge of the wick-tube (and serving the pur-
pose of preventing a too excessive access of air), causes the flame to steadily burn
on a level with the top of said
cap.
If, however, an access of air from outside is required, the burner cap shown in
Figure 2 is substituted for the cap shown in Figure 1.
This cap (Figure 2) resembles, as it were, a double cap and operates in such
manner, that the air entering the burner at d (Figure 1) in the direction of the
arrow, Figure 1, is caused to separate into various currents coresponding to the
direction of the arrows, shown in Figure 2. Said currents, by being thus forced to
flow through the channels formed by the parts e and f, of said cap, are thus
caused to reach the outer wick or flame.
When, therefore, the burner provided with the said cap shown in Figure 2,
a very suitable flame for heating incandescent mantles is produced.
.

page_text: Figures 3 & 4 show in plan and section the cap illustrated in Figure 2, this
improved blue flame-burner cap being one of the main features of my invention.
The burner cap described in the preamble of this specification and as therein
mentioned, arranged for an ordinary illumination flame, is shown separately
in Figures 5 and 6 in plan and in section, through the lower portion of the same.
I construct this last mentioned cap (for an illuminating flame), with a flat
sieve-like disc g (Figure 6) and above the same, a conical ring provided with a
large number of slots. This disc y separates and retards the air entering the air-
tube from the outside, in such manner, that the said air-currents reach the flame
without any excessive speed, and without being especially directed towards the
wick.
Both my said burner caps herein before described are provided with a bayonet or
other suitable fastening, by means of which, they can be conveniently .connected
to the burner, so that the change of a blue flame to that of an illuminating flame
and vice versa, can be simply, quickly, and easily effected.
Dated this 15th day of Noveniber 1897.
MAX GRAETZ;
By Geo. H. Rayner,
Agent for the Applicant.
An Improved Petroleum-burner adaptable both for Blue Flame and
Illuminating Flame..
I, MAX GRAETZ, of 31, Lausitzer Strasse, of Berlin, Kingdom of Prussia,
German Empire, 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; -
My invention relates to an improved petroleum-burner, and has for its object
to produce a burner capable of employment for incandescent light and at the same
time for the production of an illuminating flame as ordinarily obtained from
petroleum-burners hitherto in use.
In order to make my invention clear, I refer to the drawing, filed with the
Provisional Specification, in which similar letters denote similar parts through-
out the different views, and in which;
Figure 1 is a sectional view of a burner provided with my cap adapted for
ordinary illumination purposes.
Figure 2 shows my improved cap for the production of a blue flame.
Figures 3 & 4 represent in plan and in lower section the burner cap shown in
Figure 2.
Figures 5 & 6 plan and lower section of the burner cap shown in Figure 1.
As hereinbefore mentioned, Figure 1 shows in vertical section a burner of known
construction, i.e. a burner provided with cap for the production of an ordinary
illuminating flame. Said burner, however, when provided. with my improved
cap, as shown in Figure 2, produces a blue flame, thus causing the said burner
to be suited for the production of petroleum incandescent light.
The parts of the burner as also the conducting of the air to the wick will be
clear from the drawing without detailed explanation.
+
.
The construction illustrated in Figure 1 permits an air-current to pass centrally
through the wick-tube a and to be conducted to the flame by means of the flame-

page_text: disc e, said flame-disc c being held in position by a ribbed body b (Figure 1) pro-
vided with a perforated edge cl.
A cap b (Figure 1) located at the top edge of the wick-tube (and serving the pur-
pose of preventing a too excessive access of air), causes the flame to steadily burn
on a level with the top of said cap.
If, however, an access of air from outside is required, the burner cap shown in
Figure 2 is substituted for the cap shown in Figure 1.
This cap (Figure 2) resembles as it were, a double cap and operates in such
manner, that the air entering the burner at d (Figure 1) in the direction of the
arrow Figure 1, is caused to separate into various currents corresponding to the
direction of the arrows shown in Figure 2. Said currents, by being thus forced
to pass through the channels formed by the parts e and f, of said cap, are thus
caused to reach the outer wick or flame.
When, therefore, the burner is provided with the said cap shown in Figure 2,
a very suitable flame for heating incandescent mantles is produced.
Figures 3 & 4 show in plan and section the cap illustrated in Figure 2, this
improved blue flame-burner cap being one of the main features of my invention.
The burner cap (Fig. 1) described in the preamble of this specification, and as
therein mentioned, arranged for an ordinary illumination flame, is shown separately
in Figures 5 and 6 in plan and in section through the lower portion of the same.
I construct this last mentioned cap Fig. 1 (for an illuminating flame), with a flat
sieve-like disc g. (Figure 6) and above the same, a conical ring provided with a
large number of slots. This disc g separates and retards the air entering the air-
tube from the outside, in such manner, that the said air-currents reach the flame
without any excessive speed, and without being especially directed towards the
wick.
Both my said burner caps hereinbefore described are provided with a bayonet or
other suitable fastening, by means of which, they can be conveniently connected
to the burner, so that the change of a blue flame to that of an illuminating flame
and vice versa, can be simply, quickly and easily effected.
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:-
A petroleum-burner, characterised by the interior of the wick-tube, being pro-
vided with a body (bb), to prevent an excessive inlet of air to the inner side
of the wick, whereby a free burning of the flame on the inner surface of the
wick can take place, in combination with a sieve-like disc g, arranged on the outer
side of the wick under the cap h, said disc retarding the air entering from the out-
side, in such manner that the said air-currents reach the wick without any exces-
sive speed and without being especially directed to the said wick, whereby a
bright flame is also produced on the outer side or edge of the wick, substantially
as described.