Improvements relating to Burners for Incandescent Gas-lamps.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements relating to Burners for Incandescent Gas-lamps.
I, Dr. HUGO STRACHE, of 4 Pointengasse, Vienna XVII, in the Austrian
Empire, Lecturer at the K. K. Technischen Hochschule, do hereby declare the
nature of this invention to be as follows:-
For incandescent lighting by means of water-gas and Auer's or like incandescent
mantles or bodies, Argand burners or annular burners provided with holes are now
employed. The mantle is arranged on the burner in such a manner that the annular
flame envelops it entirely from the inside to the outside. For this purpose, on the
one band, it is of importance that air be supplied to the flame from all sides, and
on the other hand that the incandescent body or mantle be in immediate proximity
to the apertures from which the gas issues, if it be desired to obtain a favourable
lighting effect in proportion to the consumption of gas.
The first useful annular burner, called the "American" burner, was constructed
on the principle of supplying the air from beneath, whilst the apertures from which
the gas issued were at some distance from the incandescent body. In the more
recent methods of construction greater value is attached to the smaller distance
between the opening from which the gas issues, and the incandescent body; for
attaining this object, for a given width of the incandescent body, the diameter of
the Argand-burner must be increased. In this way however, the air-supply between
the opening from which the gas issues and the incandescent body is naturally
reduced, this is finally equal to zero, if the outlet openings lie against the incan-
descent body. Experiments have, however, shown that an air-supply between the
opening from which the gas issues and the incandescent body, substantially increases
the illuminating power, the consumption of gas remaining the same.
On this discovery is based the present invention of a burner wherein the openings
from which the gas issues can he placed as near as is desired to the incandescent
body, without thereby interfering with the air-supply to any single flamelet. The
form of the Argand burner must be departed from as follows:-
The burner consists of single hole burners (small tubes) the number of which is
suited to the circumference of the incandescent body or mantle, these burners being
arranged in a form corresponding to that of the incandescent body (consequently
generally in a circle). The small tubes are so mounted that a perfect air-supply
reaches each flamelet on all sides; they are therefore so arranged as to be isolated
or detached from one another as much as possible and can be secured on a co.nmon
base or be held together in other ways. The advantage which is obtained by this
arrangement over the Argand burner is as follows:-
In an ordinary Argand burner, the openings from which the gas issues lie close
to the incandescent body, and the air-supply to the separate flamelets can only take
place from the central opening of the Argand burner and from the exterior through.
the meshes of the mantle-fabric. In my improved burner, on the contrary, each
single flamelet is provided with air on all sides within the incandescent-body or
mantle. This results in an increase in the illuminating power for an equal
consumption of gas.
One form of the burner is the following, viz. :-On the under part of the burner,
which is made after the style of the Argand burner, are mounted small tubes which

page_text: form at the top, the openings through which the gas issues; the said openings can
be fitted with nibs of steatite, earthenware, or the like in order to prevent them
from burning and to prevent the conduction of heat downwards. A ring holds the
small tubes at the correct distance apart from one another and from the incan-
descent body or mantle. A casing or shell is solidly connected to the gallery and
serves as a holder for the incandescent body or mantle which is slid over it. The
mantle-support or carrier is preferably secured to the shell or casing and gallery,
it may however be arranged in any other suitable manuer. The gallery, together with
the shell or casing and the mantle, rests on the burner, and is removable therefrom
to permit the exchange of the incandescent body or mantle. Openings are also
formed in the shell or casing in order to supply air to the space outside the
incandescent body or mantle.
D. YOUNG & Co.,
11 & 12 Southampton Buildings, London, W.C.,
Agents for the Applicant.
Improvements relating to Burners for Incandescent Gas-lamps.
I, Dr. HUGO STRACHE, of 4 Pointengasse, Vienna XVII, in the Austrian
Empire, Lecturer at the K. K. Technischen Hochschule, 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 :-
For incandescent lighting by means of water-gas and Auer's or like incandescent
mantles or bodies, Argand burners or annular burners provided with holes have
been heretofore employed. The mantle is arranged on the burner in such a manner
that the annular flame envelops it entirely from the inside to the outside. For
this purpose, on the one hand, it is of importance that air be supplied to the flame
from all sides, and on the other hand that the incandescent body or mantle be in
immediate proximity to the apertures from which the gas issues, if it be desired to
obtain a favourable lighting effect in proportion to the consumption of gas.
The first useful annular burner, called the "American" burner, was constructed
on the principle of supplying the air from beneath, whilst the apertures from which
the gas issued were at some distance from the incandescent body. In the more
recent methods of construction greater value is attached to the smaller distance.
from the incandescent body of the opening from which the gas issues; for attaining
this object, for a given size of the incandescent body, the diameter of the Argand-
burner must be increased. In this way, however, the air-supply between the
opening from which the gas issues and the incandescent body is naturally reduced;
this is finally equal to zero, if the outlet openings lie against the incandescent body.
Experiments have, however, shown that an air-supply between the opening from
which the gas issues aud the incandescent body, substantially increases the
illuminating power, the consumption of gas remaining the same.
On this discovery is based the present invention of a burner, wherein the openings
from which the gas issues can be placed as near as is desired to the incandescent
body, without thereby interfering with the air-supply to any single flamelet. The
form of the Argand burner must be departed from as follows:-
The burner consists of single-hole burners (small tubes) the number of which is
suited to the circumference of the incandescent body or mantle, these burners being
arranged in a form corresponding to that of the incandescent body (consequently
generally in a circle). The small tubes are so mounted that a perfect air-supply

page_text: reaches each flamelet on all sides; they are therefore so arranged as to be isolated
or detached from one another as much as possible and can be secured on a common
base or be held together in other ways. The advantage which is obtained by this
arrangement over the Argand burner can be seen from Figures 1 and 2.
The heavy line G shows, in both figures the cross-section of the incandescent
body at the height of the opening from which the gas issues. From Figure 1 it
can be seen that, in the ordinary Argand burner, the openings from which the gas
issues lie closely to the incandescent body, and the air-supply to the separate
flamelets can only take place from the central opening of the Argand-burner and
from the exterior through the meshes of the mantle-fabric. Figure 2 shows, that
in my improved burner, on the contrary, each single flamelet is provided with air
on all sides within the incandescent-body or mantle. This results in an increase in
the illuminating power for an equal consumption of gas.
One form of the burner is shown in Figures 3 and 4 in central section and plan
respectively. U is the under part of the burner which is made after the style of
the Argand burner; on this are mounted small tubes r, r, which form at the top
the openings o, o through which the gas issues; the said openings can be fitted
with nibs of steatite, earthenware, or the like in order to prevent burning of the
tubes and conduction of the heat downwards. A ring m holds the small tubes at
the correct distance apart from each other and from the incandescent body or
mantle. A tubular piece or shell h, his rigidly connected to the gallery and
serves as a holder for the incandescent body or mantle which is slid over it at k.
S is a screw for holding the mantle-support or carrier T. At t, v', the gallery,
together with the shell or casing and the mantle, rests on the burner, and is
removable therefrom to permit the exchange of the incandescent body or mantle.
n are openings formed in the said shell or casing in order to supply air to the space
outside the incandescent body or mantle.
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 :-
First. A burner for incandescent lighting with gases which burn with a non-
luminous flame, for example, water-gas, comprising a series or group of small tubes
forming single-hole burners, so arranged as to correspond to the shape of the
incandescent body, and ensure a full air-supply to the flames.
Second. A burner for an incandescent gas-lamp, comprising a series or group of
small tubes forming single-hole burners, and a tubular piece or shell for retaining
in position the lower end of the incandescent body, substantially as described with
reference to the accompanying drawing.
Dash 10th don of March 1807
D. YOUNG & Co.,
11 & 12 Southampton Buildings, London, W.C.,
Agents for the Applicant.