Improvements in Circular Lamp-burners.
Year: 1891

page_text: Date of Application, 3rd Jan., 1891-Accepted, 7th Feb., 1891
COMPLETE SPECIFICATION.
Improvements in Circular Lamp-burners.
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:
This invention relates to circular lamp burners and has for its object to remove
material drawbacks inherent to the application of circular burners with lateral
supply of air and rack and pinion gear as regards the introduction of the wicks.
Said inconveniences consist for instance in the circumstance, that in such lamps
the wick could hitherto be placed into its useful and operative position only by
auxiliary shifting by pins or the like or by aid of costly spring arrangements
susceptible of refusal and inoperativeness. Another disadvantage arising in wick
burners with rack and pinion results from the troublesome advancing of the wick
after the length of wick capable of adjustment by rack and pinion is used up. The
wick moreover, in all other cases is affected by the pressure of the wick hooks
impairing its free operation, as, considering the demanded narrowness of the wick
tube, any advancing of the wick, past the hooks, can only be effected with difficulty
and destruction of the susceptible wick texture.
To obviate the said inconveniences is the purpose of the present invention which
starts from the principle of so arranging the burner, that, in order to introduce a
new or advance a burnt-off wick, the wick guiding tube is capable of being laid free
along its entire length, whereby the wick can be on the one hand, easily laid from
above around the wick guiding tube without being injured by the wick hooks, while
on the other hand such wick can be easily introduced by any person into the
burner tube.
To accomplish the said purpose, a gear box is employed, which is adapted to be
so laid free in its entire surface, as to cause the wick guiding tube to be completely
raised by aid of the rack and pinion, to freely project with its whole length from
the gear box, as far as the requisite length of rack bar admits.
Reference being had to the drawing hereunto annexed.
Fig. 1 illustrates the improved burner in cross section as ready for operation, and
Figs. 2 & 3 designate the working positions for introduction and drawing-up
of wick.
In the gear box, Fig. 1, is arranged in the known manner the wick guiding tube E
with its stationary rackbar b and pinion e actuated by toothed rod C. On the
upper surface of the gear box A is provided a ring a with inner screw thread by
means of which the burner basket D can be screwed fast with a corresponding
outer screw thread.
By screwing-in of the burner basket, also the fixing of the burner tube E to the
burner is effected which latter is connected-not rigidly as heretofore but-
detachably to the gear box. For this purpose, the burner tube, which consists as
usual of an outer tube e and an inner tube e¹ has the latter so far downwardly
elongated relatively to the outer part as to form sufficient guiding for the wick
guiding tube E when the outer tube e bears on the gear box A Fig. 1 and the wick
guiding tube is screwed down to its lowest position.
For the purpose of allowing the burner tube E to be firmly connected by the
burner basket, the outer tube e of the burner tube E is provided with a flange f
Fig. 1 by means of which it is firmly depressed and held fast by the above
mentioned screw-threaded part of the burner basket.
To introduce the wick into the burner, the burner basket D is screwed off the

page_text: gear box A. and the burner tube E, thus liberated, is removed. Subsequently the
wick guiding tube B is screwed as far as possible out of the gear box A Fig. 3,
and the wick can now be drawn, commodiously and without being injured by the
wick hooks, from above over the projecting wick guiding tube B, such a length of
wick being left to project from the upper rim of tube B, that when the latter is
screwed down, Fig. 2 dotted lines, the wick has the proper burning position. The
wick is now pressed firmly against and into the wick hooks, the burning tube E
is then slipped over the wick, and finally the burner tube D screwed onto the
driving box.
With this manner of guiding the wick it is therefore not required to screw the
driving box A. off the oil reservoir; also injury to the wick by the wick hooks is
impossible, as the broad wick can be laid smooth and without any force around
the wick guiding tube B and subsequently secured to the wick hooks.
When the wick has been gradually so far used up that it can be no more
adjusted by aid of the rack bar, the burner basket D is again screwed off the gear
box and after the wick tube E has been pulled off, the surface of the gear box A
is completely free, and the wick portion surrounding the wick guiding tube B freely
projects. Consequently the wick can be commodiously released from the wick
hooks, spread out and easily drawn out to the desired length, as indicated by dotted
lines in Fig. 3, without coming into contact with the wick hooks. Subsequently
the latter are again pressed into the wick, the wick guiding tube B is screwed
down, Fig. 2, and, after the burner tube E has been slipped on, the burner basket
is screwed on again Fig. 1.
It is evident, that, also to do this work, it is not necessary to screw the gear
box off the oil reservoir and as the drawing-up of the wick takes place at the
upper end, also all other drawbacks regarding cleanliness which are otherwise
connected with the adjustment of the wick are obviated.
The arrangement, in wick guidings with rack and pinion, of a gear box capable
of being laid completely open on the surface, does therefore not only result in
highly important technical effects, viz. facility in the introduction and adjustment
of the wick without injury thereto, but it also leads to an aesthetic effect,
viz. greater cleanliness in the use of the lamps.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :
A round burner, for lamps, having lateral admission of air and rack and pinion
gear and characterised by the application of a gear box A adapted to be laid
completely free on its surface and on which the burner tube E is screwed fast by
aid of the burner basket, for the purpose of allowing that end of the wick which
surrounds the burner guiding tube in its entire length up to the burning surface
to be laid free, and consequently the wick to be introduced or drawn up without
contact with the wick hooks and without screwing the gear box off the oil reservoir,
substantially as illustrated and described.
Dated this 20th day of December 1890.
JOHANN CARL AUGUST KIESOW.
By Huelser & Co.,
Temple Chambers, London, his Agents.