An Attachment in Lamp Burners for Extinguishing the Flame.
Year: 1889

page_text: Date of Application, 7th Dec., 1889-Accepted, 11th Jan., 1890
COMPLETE SPECIFICATION.
An Attachment in Lamp Burners for Extinguishing the Flame.
I, AUGUST KIESOW of Mönkedamm No. 5 Hamburg, in the Empire of Germany,
Merchant, 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 the means for extinguishing lamps and has for its purpose
to provide a device of this class excelling similar arrangements hitherto known by its
efficacy and easy applicability to lamp burners of every description.
The improved device allows all flames regardless of their size or of the shape of the
burners to be easily put out by causing an abrupt current of air, produced by com-
pression of an indiarubber ball or similar means, to act on the top of the wick tube.
Reference being made to the accompanying drawing, in which like letters indicate
analoyous parts.
Fig. 1 represents a vertical section of a large-sized burner having the improved
device applied thereto.
Fig. 2 a bottom view of the latter.
Fig. 3 shows a modification of the improved attachment as applied to burners with
small width of wick.
In the case of circular burners, the extinguishing device consists of a tubular ring a
placed and made stationary at a certain distance above the burning surface of the
wick. In lamps with burner cap as shown by b in Fig. 1, the said ring or air-port is
preferably placed close below the rim of the cap, and has a slightly larger diameter than
the outer circumference of the wick tube c. A suitable number of apertures or blast
holes e are provided in the lower portion of the ring or air port at such an angle as to
be directed towards the wick d. The extremity of the tube is closed while the
opposite portion is successively bent down and sideways, to allow the device to be
attached to the gallery or chimney holder, the open end g₁ forming a short outward
projection, into which is conducted a current of air for extinguishing the flame, either
by compression of the indiarubber ball i connected with g¹ by tube h, by blowing into
an air tube attachable to g¹, or by any other suitable means. The said blast producers
are particularly adapted for lamps so placed as to be difficult to reach, while, with
ordinary or more accessible lamps, a mouthpiece may conveniently be attached direct
to g. The air current passes through g' and g into the inner portion of the extin-
guisher a and escapes through apertures e in an inclined direction, as indicated by
arrows in Figs. 1 and 2, thus impinging on the burning surface of the wick, and
effecting an immediate extinction of the flame. For burners with small width of
wick a single inclined blast aperture is sufficient. In this case, the air-port may be
either correspondingly shortened or modified in the manner as shown in Fig. 3. In
this modification the annular air-port is replaced by the bent upper extremity a of the
tube g. This knee-shaped bend is made at a precisely adjusted height above the
burning surface, and the central axis of the inclined extremity of the tube passes, in
its extension, through the contiguous point of the upper edge of the wick, as indicated
by an arrow. A current of air sent through the tube g by means of the indiarubber
ball and hose h is compelled to escape in the direction of the inclined axis referred
to and inipinges exactly on the upper rim of the wick, thereby extinguishing the
flame.
Having now particularly described and ascertained the nature of this invention, and
in what manner the same is to be performed I declare that what I claim is :
1. An extinguishing device for circular lamp burners consisting of an annular air
port a provided above the burning surface and having outlet or escape apertures e
D
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page_text: inclined towards the burning surface, and a tube piece g g projecting outside from
the burner, and serving as a passage for a current of air produced for the purpose of
extinguishing the flame, substantially as illustrated and described.
2. In circular lamp burners with small width of wick, or in flat burners, the
application of the bent upper extremity of the air inlet tube 9, which extremity is bent
knee-fashion towards the burning surface of the wick and serves as a substitute for
the air port referred to in claim 1, substantially as set forth.
Dated this 7th day of December 1889.
A. KIESOW.
.Per Huelser & ('o.,
Attorneys.