Improvements in and connected with the Igniting Devices for Incandescent Lighting by Gas, Spirit, or Petroleum.
Year: 1896

page_text: Date of Application, 17th Feb., 1896
Complete Specification Left, 17th Nov., 1896-Accepted, 23rd Jan., 1897
PROVISIONAL SPECIFICATION.
Improvements in and connected with the Igniting Devices for
Incandescent Lighting by Gas, Spirit, or Petroleum.
I, HERMANN WINKLER, of No. 97, Dresdener Strasse, of Berlin, Kingdom of
Prussia, German Empire, Manufacturer do hereby declare the nature of this
invention to be as follows:-
It is a known fact, that the fragile mantles employed for incandescent lighting
suffer very often from the blow resulting from the explosion that occurs on lighting
the lamp or lantern. The gas issuing from the burner mixes within the chimney
with air, and the mixture thus formed is an explosible one, as known to every one
versed in the art in question. As soon as the igniting flame is brought in close
proximity to the upper end of the chimney, the explosible mixture is ignited, and
the explosion proceeds down to the burner, and sometimes even down to the nozzle
within that burner.
In order to do away with the drawbacks above mentioned I propose to divide
the chimney of the lamp or lantern in two parts, that are arranged one above the
other, a small space being left between the upper edge of the lower part & the
lower edge of the upper part of said divided chimney. The plane of division is to
lay a short distance above the top of the mantle, and I arrange within the space
just mentioned the igniting flame proper, which thus is situated in close proximity
to the mantle. The volume of the mixture of gas and air that is formed on
opening the cock, or on commencing the generation of petroleum or spirit-gas
respectively, can thus be but very small, and the distance between the igniting
flame proper and the burner is, also but small, so that there occurs either no blow
at all or merely an extremely slight one. By this means the mantle is fully
preserved against being destroyed, and the flame does never pass over from the
burner proper to the nozzle where the gas issues from.
The improved arrangement above described is applicable to incandescent lamps
or lanterns of all kinds, irrespective of whether the mantle be heated by ordinary
coal-gas or by gas produced from spirit or petrol, and may be employed also with
lamps that contain two or more flames.
The upper portion of the divided chimney need not indispensably be of the same
diameter as the lower portion, but may possess a larger diameter, and in this case
the upper portion may take over the lower one, so that the space between the two
portions is an annular one. If there are two or more flames in one lamp or lantern,
the chimneys proper, or the upper portions of the same respectively, may all
terminate into a common top chimney that leads off the whole of the products of
combustion of all the flames of the respective lamp or lantern.
I wish it finally to be understood, that my invention is not confined to lamps
for dwellings, offices or shops, but may be used with street lamps or street
lanterns, too.
Dated this 17th dox of February 1896
HERMANN WINKLER,
By Geo. H. Rayner,
Agent for the Applicant.

page_text: Improvements in and connected with the Igniting Devices for
Incandescent Lighting by Gas, Spirit, or Petroleum.
I, HERMANN WINKLER, of No. 97, Dresdener Strasse, 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 :-
This invention relates to improvements in and connected with the ignition devices
of lamps or lanterns for incandescent lighting by gas, spirit or petroleum.
It is well known that the fragile mantles employed for incandescent lighting are
injuriously affected by the shock or concussion resulting from the explosion which
occurs on igniting the mixture of air and gas in the chimney or cylinder. This
mixture explodes as soon as the ignition flame is applied at the upper end of the
chimney and travels down the said chimney to the mantle or even to the burner
or nozzle.
Now it is the object of this invention to obviate this disadvantage and to this
end 'I divide the chimney or cylinder of the lamp or lantern into two parts so as
to provide a short chimney for the mantle and to enable the ignition flame to be
placed immediately above the chimney.
To enable my invention to be fully understood I will describe it by reference
to the accompanying drawing, in which :-
Figures 1 to 3 are sectional elevations of lamps or lanterns having my
improvements applied thereto :
Figure 4 is a vertical section of the upper part of my chimney shewing a slight
modification:
Figure 5 is a similar section to those shewn in Figures 1 to 3 of a lamp having
two burners:
Figure 6 is a section on the line 6-6 of Figure 5:
Figure 7 is a similar section of a three flame lamp or lantern.
Similar letters of reference indicate the same or corresponding parts in the several
figures.
a is the lamp or lantern and b the burner of the same. c is the lower short part
and d the upper part into which the chimney is divided. e is the space left between
the two parts c and d.
The ignition flame fis arranged directly above the mantle g which is enclosed in
the short part c of the chimney.
The upper part d of the chimney is provided for creating the necessary air current
for feeding the flame.
The ignition burner or flame f, which as above described is arranged immediately
above the mantle g, is preferably a permanent device.
In Figures 1 and 2 the lamps shewn are provided with one burner and the upper
part d of the chimney is larger than the lower part c of the same, the said upper
part d in Figure 1 enclosing or taking over the upper end of the lower part c so as to
form an annular space between the two parts. In Figure 2 the upper part d does not
take over the lower part c.
In the lamp shewn in Figure 3 which is also a one flame lamp the upper part d of
the chimney is continuous with the lower part c of the same and instead of the
space d' hetween the two parts I form openings or holes e in the upper part d through
one of which the ignition burner passes.
In the chimney shewn in Figure 4 the upper part d extends over the lower part
as in the arrangement shewn in Figure 1 but the burner finstead of passing through

page_text: the space d¹ between the said two parts as in the said arrangement passes through an
opening d¹ in the upper part d.
The lamp or lantern shewn in Figure 5 is provided with two burners 6, 6 and each
of the mantles g is enclosed in the short length c of the chimney. In this case the
two upper parts d open into a single uptake.
Figure 7 represents a section through the chimneys of a three flame lamp or
lantern.
With my improved lamps or lanterns the volume of the mixture of gas and air,
which collects when turning on the cock of the same, is comparatively small and the
distance between the ignition flame fand the mantle g is also comparatively short so
that no shock or concussion, or practically none, occurs when the mixture is exploded.
By this means the mantle g is not injuriously affected by the said explosion and the
flame produced by the explosion does not pass from the mantle or burner proper
down to the nozzle from which the gas issues.
It will be obvious that my improvements are applicable to incandescent lamps
or lanterns of all kinds including those which employ coal gas as well as those
employing spirit or petroleum.
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 :-
1. In lamps or lanterns the employment of an incandescent burner having a
cylinder or chimney which projects only slightly above the incandescent mantle
and of an upper cylinder or chimney, the two cylinders being so arranged that a
space is left between them for the insertion of the ignition flame or burner,
substantially as, and for the purpose, hereinbefore described.
2. In a lamp or lantern of the kind described in Claim 1 forming holes or
openings in the upper part of the cylinder or chimney, substantially as described
and illustrated in Figure 3 of the accompanying drawing.
3. The improvements in lamps or lanterns hereinbefore described and illustrated
in the accompanying drawing.
Deted this 17th dow of November 1806
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.