Improvements in or connected with Incandescent Light, or Bunsen Flame, Wick Burners for Liquid Fuels.
Year: 1897

page_text: Date of Application, 27th May,
1007
7007
Complete Specification Left 28th Feb. 1898 Accepted. 9th Apr. 1898
Date of Application, 27th May, 1097
Complete Specification Left 28th Feb. 1898-Accented 9th Apr. 1898
PROVISIONAL SPECIFICATION.
Improvements in or connected with Incandescent Light, or Bunsen
Flame, Wick Burners for Liquid Fuels.
I, JOHANNES SPIEL, of 85, Thurmstrasse, Berlin, N.W., in the Empire of
Germany, Engineer, do hereby declare the nature of this invention to be as
follows:-
It is a well known fact, that for producing a blue flame appropriate for incan-
descent light in lamp burners the exterior combustion air must be conducted in
an exactly adjusted quantity to the flame, in order to obtain the right proportions
of the mixture of gases and air to produce a pure blue or Bunsen flame.
In order to be able to admit this right quantity of air, one has hitherto been
obliged to arrange a regulating device of a mechanical kind, because for the
different sizes of burners there are also necessarily differently large quantities of air.
As these regulating devices for their operation necessitate a correct knowledge
of the burning process and a good experience, they cannot be operated by every-
body; therefore this invention covers an arrangement rendering such mechanical
regulating device unnecessary.
This invention consists essentially in an arrangement, whereby according to
the power of the flame required from the burners the exterior air is always admitted
in a previously determined, always equal quantity, the cross section of the passage
for the air being correspondingly narrowed. This narrowing can be effected in
different ways.
The simplest is a narrowing of the exterior burner cap whereby the upper part
in proportion to the other parts receives a diminished cross section so that there
remains here from the wick tube only a distance of about 3 mm.
Or the burner cap can be pressed so far inwards, or the wick tube so far outwards,
or both parts simultaneously and mutually so that the remaining passage space is
also only about 3 mm. wide.
Any thickening body or ring of any incombustible material can be put on the
wick tube or burner cap or a simple ring plate can be arranged on the wick tube
or burner cap. In all cases the free spaces cbtained by the narrowing of the pas-
sage space must correspond to the size of the burner or to the power of the light
to be obtained, in order that only so much air can pass to the burner as the flame
requires. This must of course be calculated in the manufacture of the burners,
so that the air quantity is determined once for all time and that regulation after-
wards is not necessary.

page_text: Improvements in or connected with Incandescent Light, or Bunsen
Flame, Wick Burners for Liquid Fuels.
I, JOHANNES SPIEL, of 85, Thurmstrasse, Berlin, N.W., in the Empire of
Germany, Engineer, 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:-
It is a well known fact that for producing a blue flame essentially appropriate
for incandescent lamp burners the exterior air must be conducted in an exactly
adjusted quantity to the flame, in order to obtain the right proportions of the
mixture of gases and air to produce a pure flame and further that a rarefaction
of the air in the admission chamber beneath the place of combustion is to be
avoided.
In order to be able to admit the proper quantity and to avoid the rarefaction of
the air, one has hitherto been obliged to arrange on the lamp a regulating device
of a mechanical kind as the different sized burners require different quantities
of air. As these regulating devices for their proper operation necessitate a correct
knowledge and also experience of the burning process, they cannot be operated
by everybody. This invention therefore is for the purpose of rendering such
mechanical device unnecessary.
This invention consists essentially in an arrangement whereby according to the
power of the flame of the respective burner the exterior air is always admitted
in a previously determined and always equal quantity, the passage for the air
being correspondingly narrowed so as to admit only the amount of air required
to the burner. This narrowing can be effected in different ways and the annexed
drawing shows some forms of construction.
The simplest is the narrowing of the exterior burner cap a, shown in Fig. 1,
in which the upper part 61 of 6 is narrowed in proportion to the other parts of the
burner so that only a small distance remains from here to the wick tube d.
Or as in Fig. 2 the burner cap a can be pressed at a¹ so far inwards or the wick
tube d at d so far outwards, or both parts simultaneously and mutually, so that
the passage between is rendered suitably small. Or as in Fig. 3 a suitable collar e
can be fixed round the wick tube d or a ring of any incombustible material can
be used in like manner. Or as in Fig. 4 a simple annular plate f can be arranged
on the wick tube. In all cases the free spaces obtained by the narrowing of the
passage way must be in proportion to the size of the burner, or to the power of
the light to be obtained, in order that only so much air can pass to the burner as
the flame requires, and also the air must have an unhindered admission as far
as the narrowing. The narrowing of the passage way must of course be calculated
in the manufacture of the burners, so that the air quantity is permanently regulated
and alterations thereof are not afterwards necessary.
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. An improved incandescent wick burner, in which the admission of the
exterior combustion air is permanently regulated in proportion to the size of
the burner to a certain quantity by means of the arrangement that the free passage
for this combustion air is suitably narrowed substantially as set forth.
2. A form of construction of the burner as in Claim 1 in which the free passage
for the combustion air gradually diminishes as shown by. b-b¹, (Fig. 1.)

page_text: 3. A form of construction of the burner as in Claim 1, in which the narrowing
of the free passage for the combustion air is effected by the protuberance respect-
ively either a¹ or or by a¹ and conjointly (Fig. 2.)
4. A form of construction of the burner as in Claim 1 in which the narrowing
of the free passage is effected by a collar or thickening e (Fig. 3) of the exterior
wick tube à.
5. A form of construction of the burner as in Claim 1 in which the narrowing
of the free passage for the combustion air is effected by the arrangement of an
annular plate f (Fig. 4) on the exterior wick tube d.
uary
1030.
HERBERT HADDAN & Co.,
Agents to Applicant, 18, Buckingham Street, Strand, London, W.C.