Improvements in Spirit Cookers.
Year: 1890

page_text: Date of Application, 20th Oct., 1890-Accepted, 13th Dec., 1890
COMPLETE SPECIFICATION.
Improvements in Spirit Cookers.
I, LOUIS HUGO LANGENHAN, of Dresden, in the Kingdom of Saxony, in the
German Empire, Engineer, do hereby declare the nature of this invention and in what
manner the same is to be perforined, to be particularly described and ascertained in
and by the following statement
My invention relates to a regulating-device for spirit-cookers by means of which
the flame of the cooker may be enlarged or reduced and the burner may be filled with
fresh spirits even during the time of burning without any danger, and with greatest
convenience.
In order to make my invention more clear, I refer to the accompanying sheet of
drawing, in which similar letters denote similar parts throughout the different views
and in which :
Fig. 1 is a vertical section through the apparatus, the flame burning small.
Fig. 2 is the same vertical section, the flame burning large.
Fig. 3 is an upper view.
The cooking-apparatus consists of two parts, i.e. the burner and the regulator, both
parts connected by a tube for leading the spirits from the regulator and reservoir to
the burner. The latter (c) is supported by means of a tripod, the legs n nn of which
are connected at their upper extremities m by a ring o. The bottom of the burner c
is of conical shape, and holds a number of upwardly extending vertical tubes i, open
at both ends and intended to lead air into the flame for increasing its heat (Fig. 3).
The spirit is contained in a vessel g, tightly closed by a cover a, the latter having
an aperture for pouring the spirit into the reservoir g. The centre of said cover a
has a hole provided with the thread of a screw and holding a long screw d, which at
its under extremity carries a small so-called diving-bell f and at its upper extremity
a knob by means of which the screw. may be turned and the diving-bell may be
lowered or raised.
Before filling the reservoir with spirits the diving-bell is screwed as high as possible,
and spirit is poured now into the reservoir through aperture 6, until the spirit is to
be seen in the burner, as shown by Fig. 1.
By screwing now the diving-bell down (Fig. 2) the air contained within the diving-
bell presses on the spirits, effecting thus a rise of it through the connecting pipe lat
the sides of the reservoir and in the burner. Owing to the conicalness of the latter
the surface of the spirits becomes the larger the greater the quantity of spirits pressed
in in consequence of which the flame grows larger and higher, thus discharging
more heat.
It is thus clear, that by lowering or raising the diving-bell more or less the flame
may be increased or decreased, and that the burner may be filled anew when
necessary by simply lowering the diving-bell, until it finally arrives at the bottom of
the reservoir. When having arrived there fresh filling of the reservoir is required.
The same effect may be had when replacing the diving-bell by any solid body of
equal or other form, and by replacing the screw d by any other mechanism equally
well adapted to raise or lower the diving-bell or its equivalent.
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. The combination, with a spirit-cooker, having a burner (c) with conical bottom
holding vertically extending tubes (i), of a reservoir (9) containing a diving-bell (f) or
its equivalent, the latter adapted to be raised or lowered for the purpose as described.
2. The combination with a spirit-cooker, having a burner (c), with conical bottom

page_text: of a reservoir (g) containing a diving-bell (f) or its equivalent, the latter adapted
to be raised or lowered, for the purpose as described.
3. The combination with a spirit-cooker, of a reservoir (9) containing à diving-
bell (f) or its equivalent, the latter adapted to be raised or lowered, for the purpose
as described.
4. The reservoir (g) containing a diving-bell (ƒ) or its equivalent, the latter
adapted to be raised or lowered, for the purpose as described.
Dated this 20th day of October 1890.
RAYNER & CASSELL,
37, Chancery Lane, London, W.C., Agents for the Applicant.