Year: 1887

page_text: Date of Application, 18th Aug., 1837
Complete Left, 15th May, 1888
Complete Accepted, 15th June, 1388
1, JULIUS PINTSOH of 72 and 73 Andreas Strasse, Berlin, O, Germany, Manufac-
turer, do hereby declare the nature of this invention to be as follows:-
My invention relates to gas burners for incandescent illumination by gas.
The gas burners heretofore employed for rendering tubular bodies of incombustible
material incandescent, which in order to attain the highest illuminating effect must bo
brought to the highest degree of heat, cause at the normal burning pressure an
unpleasant noise which is further considerably increased by the draught-chimney by
which such burners must be surrounded.
escape
Moreover, it often happens that the tubular body is suspended more or less out of
centre relatively to the flame, therefore it is rendered incandescent on one side only
and not only gives an irregular light, but gradually loses its proper shape, and in a
comparatively short time becomes altogether useless. In order to obviate the former
to
gas
defect, attempts have already been made to allow the
from a number of
small openings arranged circularly and to insert partition plates in the upper part of
the burner tube, whereby the noise is prevented in the former arrangement, but not
without giving rise to the defect of thereby gradually diminishing the intensity of the
flame by the fine particles of dust which are contained in the air passing from below
into the burner tube and settling firmly against the narrow openings, so as to decrease
the discharge of the mixture of gas.
The noise occurring in burners of this kind, which in contradistinction to the use
heretofore made of Bunsen burners for boiling and heating purposes, is caused by the
explosive combustion which can be best observed in the core of the flame of an
ordinary Bunsen burner. By reason of this peculiar combustion whirling and
quivering currents are caused which produce the noise of the flame and can only be
removed at the expense of the heat of the flame by bodies which are placed within the
cylindrical burner tube. But the troublesome noise ceases at once if in the burner
orifice is placed a solid conical body that does not allow an explosive combustion to
Loccur at this point.

page_text: According to the present invention in the top of the burner is arranged a
conoidal body which completely or partially fills up the inner part of the core of the
flame.
This body is suitably fixed upon a star shaped disc which is set upon the enlarged
burner tube orifice in such a manner that the mixture of gas and air passes from the
burner tube uniformly around the body upwards. Moreover, in order to secure the
proper position of the burner tube relatively to the burner, upon the said burner tube,
or the enlarged orifice thereof, is placed cylindrical, tapering or conoidal capsule
which is at an uniform distance from the conical body and over the upper end of
which the lower end of the tubular incandescent body suspended from a rod or a
frame is drawn. By reason of the conical body the green core of the flame will
assume an annular shape and the hottest zone of the flame is displaced further
towards the periphery of the same. Now, as the tubular incandescent body must,
owing to the capsule, always remain central relatively to this hottest zone of the
flame, the flame will always render the said body incandescent with uniform
intensity, and the incandescent body will not be able to change its form.
The capsule and the conical body are made of suitable refractory material, for
which steatite is best adapted. The capsule receives a small flange above, extending
inwards in such a manner that the flame formed of the mixture of gas and air rising
from the annular space between the conical body and the capsule is sufficiently
enclosed to remain especially at this point, at the proper distance from the incandescent
body.
D
1 .. 101
100円
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.

page_text: 1, JULIUS PINTSCH, of 72 and 73 Andreas Strasse, Berlin O, Germany, Manufac-
urer, do hereby declare the nature of the said 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 gas burners for incandescent illumination by gas.
The gas burners heretofore employed for rendering tubular bodies of incombustible
material incandescent, which in order to attain the bighest illuminating effect must be
brought to the highest degree of heat, cause at the normal burning pressure an
unpleasant noise which is further considerably increased by the draught-chimney by
which such burners must be surrounded.
Moreover, it often happens that the tubular body is suspended more or less out of
centre relatively to the flame, therefore it is rendered incandescent on one side only
and not only gives an irregular light, but gradually loses its proper shape, and in a
comparatively short time become altogether useless. In order to obviate the former
defect, attempts have already been made to allow the gas to escape from a number of
small openings arranged circularly and to insert partition plates in the upper part of
the burner tube, whereby the noise is prevented in the former arrangement, but not
without giving rise to the defect of thereby gradually diminishing the intensity of the
flame by the fine particles of dust which are contained in the air passing from below
into the burner tube and settling firmly against the narrow openings, so as to decrease
the discharge of the mixture of gas.
The noise occurring in burners of this kind, which in contradistinction to the use
heretofore made of Bunsen burners for boiling and heating purposes, is caused by the
explosive combustion which can be best observed in the core of the flame of an
ordinary Bunsen burner. By reason of this peculiar combustion whirling and
quivering currents are caused which produce the noise of the flame and can only be
removed at the expense of the heat of the flame by bodies which are placed within
the cylindrical burner tube. But the troublesome noise ceases at once if in the
burner orifice is placed a solid conical body that does not allow an explosive combus-
tion to occur at this point.
My said invention is represented in the accompanying drawing the figures of which
are hereinafter referred to.
According to the present invention, in the top of the burner is arranged a conoidal
body a Figures 1 and 2 which completely or partially fills up the inner part of the core
of the flame.
This body is suitably fixed upon a star-shaped disc b which is set upon the enlarged
burner tube orifice A, Figure 3; in such a manner that the mixture of gas and air
passes from the burner tube B uniformly around the body a upwards. Moreover in
order to secure the proper position of the burner tube B, Figure 4, relatively to the
burner, upon the said burner tube, or the enlarged orifice A thereof, placed a

page_text: cylindrical, tapering or conoidal capsule d which is at an uniform distance from the
conical body a, and over the upper end of which the lower end of the tubular incan-
descent body g suspended from a rod or a frame is drawn, Figure 4. By reason of
the conical body a the green core of the flame will assume an annular shape and the
hottest zone of the flame is displaced further towards the periphery of the same.
Now, as the tubular incandescent body must owing to the capsule, always remain
central relatively to this hottest zone of the flame, the flame will always render the
said body gincandescent with uniform intensity, and the incandescent body will not
be able to change its form.
The capsule d and the conical body a are made of suitably refractory material, for
which steatite is best adapted. The capsule d receives a small flange above extending
inwards in such a manner that the flame formed of the mixture of gas and air rising
from the annular space between the conical body a and the capsule d is sufficiently
enclosed to remain, especially at this point, at the proper distance from the incan-
descent body g.
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 Bunsen burner for gas incandescent light illumination, in which a
conoidal body a is arranged quite or partly in or above the burner orifice for the pur-
pose of obviating explosions in the flame above the burner orifice and consequently
the noise of the flame.
Second. In the Bunsen burner as above described a cylindrical, tapering or
conoidal capsule d arranged around the body a, with a flange situated at the orifice,
. over which the lower end of the tubular incandescent body g is drawn for the purposo
of securing the proper position thereof relatively to the hottest zone of the flame, as
above described.