Improvements in Extinguishing-devices for Paraffine Lamps.
Year: 1891

page_text: Date of Application, 3rd Jan., 1891-Accepted, 21st Feb., 1891
COMPLETE SPECIFICATION.
Improvements in Extinguishing-devices for Paraffine Lamps.
I, JOHANN CARL AUGUST KIESOW, of the firm of Kiesow & Co., of
11, Louisenufer, Berlin, in the Empire of Germany, 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 :-
The object of this invention is an extinguishing appliance for petroleum lamps
which is intended more particularly for circular burners, which are provided with
a drawn-in burner cap above the wick burning surface and with a burner cap the
diameter of which is inferior to that of the outer wick tube. The presence of the
burner cap, which is sometimes also combined with a concentric air-guiding and-
distributing ring precludes the arrangement of the known extinguishing caps
immediately by the side of the burning surface. Moreover such disposition, even
supposing the requisite space were not wanting, is not to the purpose, as
extinguishing caps if located close beside the flame must impair the unimpeded
admission of air and consequently the luminant power of the flame. On the other
hand the insufficient diameter of the drawn-in burner cap rim and the diameter of
the burner plate render prohibitive the application of extinguishing devices of this
class, in which a vertically adjustable tube bears with its upper rim on the lower
surface of a larger burning surface.
To obviate the said material inconvenience is the purpose of the present invention,
in which on the one hand the disposition of the extinguishing caps in immediate
vicinity of the burning surface is avoided, the flame being consequently in no manner
affected thereby, while on the other hand the burner plate is allowed to form an
auxiliary medium for extinguishing the flame.
Reference being had to the accompanying drawing, in which like letters denote
like or corresponding parts.
Fig. 1 illustrates a paraffine circular burner which is provided with a gallery-
raising appliance and with the improved extinguishing contrivance. The burner is
shewn with the gallery lowered and the extinguishing caps opened.
Fig. 2 shows the same burner with the gallery raised and the extinguishing caps
closed.
Figs. 3 and 4 are side views of the improved extinguishing device with partly
opened and partly closed extinguishing caps.
Fig. 5 and 6 represent a modification, in which the extinguishing caps have
a slightly modified shape, while the burner plate is made an auxiliary extinguishing
means.
A displaceable ring provided over the outer wick tube carries by aid of
stays the burner gallery d and is adapted to be raised and lowered with the
latter.
The movement may be produced by toothed gear, lever mechanism, screw thread
or in any other suitable manner. Toothed bar e connected with ring b, and the
key g lodged in the burner basked with pinion h, are shewn in the drawing as
employed for the said purpose. The ring has moreover revolubly secured thereto
by hinges i the two extinguishing flaps and placed diametrically opposite each
other. Around the two hinge bolts or pins are laid fine spiral springs which tend
to depress the extinguishing caps k and k'.
To put the flame out, the gallery with ring and extinguishing caps are raised by
merely turning the key f. As soon as the hinges i have surpassed the upper rim
of the outer wick tube a, the extinguishing caps k and k¹ are pressed down by the
springs. The caps unite to a kind of dome and lay themselves over the wick, but
D

page_text: without coming into contact with the latter, and the flame is extinguished. The
little arm m of one of the two extinguishing caps serves for partially opening the
extinguisher for the purpose of re-lighting the lamp, Fig. 4. When the key g is
now turned back, the caps open and ultimately assume the position indicated in
Figs. 1 and 3.
In the modification illustrated in Figs. 5 and 6, the burner plate n is used
simultaneously for extinguishing, the caps and having in their closed state
(Fig. 6) the shape of a cut cone mantle the upper rim o of which is drawn in and
has an inclined plane o¹ in order to prevent its adhering to the upper rim of tube a
when descending. When turning up the device the caps close by the action of the
springs and lay themselves with their top rim o onto the lower surface of the
burner plate n, thereby shutting out the air and extinguishing the flame. When
the device is made to descend, the extinguishing caps slide along with their slanted
surface o over the top rim of wick tube a and place themselves against the mantle
thereof as indicated in Fig. 5. Also in this modification a lever arm m is provided
at one of the caps for opening the same when lighting the wick.
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner the same is to be performed, 1 declare that what I
claim is
1.) An extinguishing device for paraffine lamps consisting of two vertically
displaceable extinguishing caps lodged at a distance from the burning surface,
which when being raised turn down over the flame, thereby forming, either alone
(Fig. 1 and 4) or in connection with the burner plate (Fig. 5 and 6), a closed
space shutting off the air, the raising and lowering of said extinguishing device being
effected by aid of toothed gear, leverage, screw thread or in any other suitable
manner, substantially as illustrated and described.
2.) In burners fitted with a gallery-raising appliance, the combination, with the
latter, of the extinguishing device forming the subject of claim 1, for the purpose
of allowing gallery and extinguisher to be operated by a single moving mechanism,
substantially as set forth.
Dated this 2nd day of January 1891.
JOHANN CARL AUGUST KIESOW.
By Huelser & Co.,
Temple Chambers, London, his Agents.