Improvements in Means for Regulating the Flame of Lamps.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in Means for Regulating the Flame of Lamps.
I, HERMANN GRAUEL, of Paulstrasse, Berlin, Germany, Manufacturer, do hereby
declare the nature of this invention to be as follows:-
-
In this invention, instead of the flame of lamps being regulated by turning
through a spindle and small toothed wheel, the wick up or down through the
wick tube, as is now usually done, the regulation is effected by fitting upon the
wick tube another tube in moving which latter up or down the dimensions of
the flame may be regulated, the wick being held stationary. The outer regulating
tube may be fitted to slide straight up or down on the outer surface of the wick
tube, or the latter may be provided with a screw thread for engaging with a corre-
sponding thread inside the regulating tube which may be screwed up or down upon
the fixed wick tube through a suitable handle or disc. The wick tubes and wicks
may be cylindrical or annular or of any other suitable form.
Dated this 15th day of March 1897.
CAPITAINE & VON HERTLING,
89, Chancery Lane, Agents for the Applicant.
Improvements in Means for Regulating the Flame of Lamps.
I, HERMANN GRAUEL, of Paulstrasse, Berlin, Germany, Manufacturer, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:
-
In this invention instead of the flame of lamps being regulated by turning
through a spindle and small toothed wheel the wick up and down through the
wick tube, as is now usually done, the regulation is effected by fitting upon the
wick tube another tube in moving which latter up and down the dimensions of
the flame may be regulated, the wick being held stationary.
In the accompanying drawing Fig. 1 is an elevation of the lamp burner of this
invention provided with a double wick, and Fig. 2 a horizontal section taken
through the tubes and wick of the same. Figs. 3 and 4 are similar horizontal
sections of a single wick burner. Fig. 5 a similar section of several double wick
burners arranged in a circle. Fig. 6 a similar view of curved burners arranged in
a circle. Figs. 7 and 7 respectively an elevation and a horizontal section of an
annular burner the inner and outer flame regulating tubes of which are moved
by rack and pinion mechanism. Figs. 8 and 8* similar views of an annular

page_text: burner the regulating tubes of which are moved on a screw thread. Fig. 9 an
elevation of a burner having three tubes the outer regulating one of which works
over a screw thread.
a is an inner and b an outer tube both provided with a single or multiple screw
thread so that the tube may be moved up and down when correspondingly
turned on the fixed tube a from the small hand wheel c (Fig. 1). The tube b may
however be slid straight up and down on the outer surface of the tube a.
latter is attached to the oil container by means of a cork stopper apertured for
the reception of the tube a or by means of any other suitable appliance.
This
d is the wick which is placed in the fixed tube a so as to project upwards out
of the same, preferably to the extent of the highest position of the top of the
tube band so that by turning this slightly up or down the flame may be regulated,
and when, in the course of time, the wick is consumed until it projects only slightly
out of the tube a it is again drawn up to coincide with the highest position of
the tube b.
e are passages which in Figs. 1, 2, 5, are naturally formed at the junction of the
two wick strands, in Fig. 3 by the insertion of a metal partitioning strip and in
Figs. 4 and 6 by the insertion of one or more small tubes in the single wick tube.
These passages serve to carry off any vapours from the oil container that might
otherwise form an explosive oxidised gaseous mixture. In this way the danger
resulting from accidents to the lamp is reduced to a minimum.
In the arangement shewn in Fig. 5 the regulating tubes may be moved up
and down singly, or by connecting them together in a known manner, collectively,
and in the arrangement of Fig. 6 said tubes are slid straight up and down also
either singly or collectively.
In Figs. 7, 7, four tubes are used, the inner and outer ones forming the
movable tube operated by rack and pinion mechanism (Fig. 7) and the two
inner ones forming the fixed wick tube a.
In Figs. 8, 8, the inner and outer of four tubes are connected at top by stays f
which extend over the wick and these two tubes forming the movable tube bare
operated simultaneously by turning the tube b provided with a screw thread over a
corresponding screw thread on the outermost of the two inner tubes forming the
wick tube a.
In the arrangement of Fig. 9 where three tubes are used the inner tube a¹ and
the intermediate one a next to it, are fixed and form the wick holder, the tube a
projecting considerably above the tube a¹. The outer regulating tube is
moved up or down over a screw thread as in Figs. 8, 8^.
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. A lamp burner composed of an inner fixed tube in which the wick is placed
and an outer tube which serves to regulate the flame by sliding it up or down or
by turning it round on a screw thread, substantially as described and shewn.
2. The arrangement of several burners of the kind referred to in Claim 1
so as to form a single annular burner (Fig. 5) or of several burners of a curved
cross section placed in the line of a circle (Fig. 6), substantially as described and
shewn.
3. In a lamp burner of the kind referred to the arrangement of four tubes, of
which the two inner ones are fixed and the innermost and outer tube operated
either singly or collectively by rack and pinion mechanism, substantially as
described with reference to Figs. 7, 7^, of the drawing.
4. In a lamp burner of the kind referred to, the arrangement of four tubes of
which the inner and the outer tube are connected together by stays of for the
purpose specified, substantially as described with reference to Figs. 8, 8, of
the drawing.
5. In a lamp burner of the kind referred to, the arrangement of three tubes of

page_text: which the inner one projects above the central tube and only the outer one is
movable for regulating the flame, substantially as described with reference to
Fig. 9 of the drawing.
6. In a lamp burner of the kind referred to the provision of one or more
passages e in the wick tube or tubes, for the purpose specified, substantially as
described and shewn.
บบ 1
.
1002
CAPITAINE & VON HERTLING,
89, Chancery Lane, London, W.C., Agents for the Applicant.