Improvements in and relating to Storm-lanterns.
Year: 1894

page_text: Date of Application, 9th Nov., 1894-Accepted, 19th Jan., 1895
COMPLETE SPECIFICATION.
Improvements in and relating to Storm-lanterns.
I, EDUARD SOMMERFELD, of 33, Skalitzer Strasse, of Berlin, Kingdom of
Prussia, German Empire, 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 refers to storm-lanterns, in which the glass-globe may be tilted,
or turned out of the frame, in order to free the burner, and to facilitate the
trimming of the wick, as well as the lighting of the same. My improvements in
storm-lanterns of the said kiud relate, first, to providing the glass-holder at its
upper part with a guide-piece adapted to hold the holder together with the glass,
whilst the latter is tilted upon, and supported by, a point of its lower rim; second,
to arranging the said guide piece within the top-casing of the lantern, and making
it extend to the outside through a slot of the top-casing, so that said piece may be
displaced within the said slot; and third, to curving the said guide-piece in such a
way, that the radius of curvature proceeds from that point of the lower rim of
the glass-globe, which is situated below the slot within the side-wall of the top, or
below the equivalent of said slot respectively.
In order to make my invention more clear, I refer to the mode of execution
shown in the accompanying drawing, in which similar letters denote similar parts
throughout the different views, and in which :
Figure 1 is a side-view of the lantern, the top being in section, and al! parts
being in their normal position;
Figure 2 is another side-view of the lantern, the glass being inclined so as to
free the burner,
Figure 3 is a horizontal section through the head of the lantern, taken on
line 6-7 of Fig. 1;
Figure 4 is a horizontal section through the foot of the glass-globe, taken on
line 8-9 of Fig. 1;
Figure 5 is a portion of the lantern head, and of one of the wire-bows holding
the glass-globe.
The top of the lantern which in the mode of construction shown, is held from
the foot of the same by means of the well-known air-tubes, is in its bottom d¹
provided with two parallel slits e, through which extend the top-portions of the
wire-bow b. Each of the bows bb¹ consists of two legs, which are connected at
their tops by a small horizontal piece serving at the same time as a bearing for the
curved guide-piece c, mentioned in the preamble.
The connecting- or bearing-piece of the wire-bow b is situated above the
slits e, or within the top-casing d respectively, whilst that of the wire-bow b¹
is situated below, but very near to, the bottom d' of said casing. The curved
connecting- and guide-piece c extends outwards through a slot d provided in the
circular side-wall of the top-casing, and is bent downwards thereafter so as to join
the bow b¹.
The glass-globe a rests upon the perforated burner-plate g, and is held at
its upper end by the crooked portions of the wire-bows, and at its lower end
by special elastic wire-bows 63 hinged to the bows bb', and encompassing the
short cylindrical foot of the glass. The curvature of guide-piece c is chosen so,
that the radius of the curve starts from that point of the lower edge of the globe
or glass, which is situated directly below the slot d², by means of which the said
piece held.

page_text: If, therefore, pressure is exerted upon the crooked portion of the wire-bow bin
the direction indicated by arrow f, the whole glass-holder with the glass will
commence to turn around the axis containing the point mentioned near the end
of the foregoing paragraph. The glass will also then be supported by the burner-
plate 9, and both these parts will be in a relation to each other like the two parts
of a hinge, so that any hinge proper is dispensed with. This movement will cease
when the upper horizontal portion of the bow 6 pushes upon the inner surface
of the top-casing d, and the inclined position of the glass will then be such a one,
that the wick may easily and conveniently be trimmed and lighted. In conse-
quence of the particular position and curvature of the guide-piece c, the glass-globe
will be supported by the burner-plate g in its outer end-position, as well as in any
of the intermediate ones.
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. In a storm-lantern, the combination with a glass-holder adapted to be tilted
upon a point of the lower rim of the lantern, of a guide-piece connecting the
glass-holder with the upper part of the lantern, and being adapted to be displaced
in a horizontal or inclined direction, for the purpose as described.
2. In a storm-lantern, the combination with a glass-holder adapted to be tilted
upon a point of the lower rim of the lantern, of a guide-piece connecting the
glass-holder with the top of the lantern, and being arranged within the latter, said
guide-piece being adapted to be displaced in a horizontal or inclined direction, for
purpose as described.
the
3. In a storm-lantern, the combination with a glass-holder, consisting of two
diametrically opposite parts adapted to be tilted upon a point of the lower rim of
the lantern, of a guide-piece connecting the top-portions of said two parts of the
holder with each other, as well as with the upper part of the lantern, and being
adapted to be displaced along or within the latter, so as to cause thereby the tilting
of the glass, substantially as described.
4. In a storm-lantern, the combination with the glass holder, consisting of two
double-legged wire-bows bb¹ arranged diametrically opposite to each other, of a
curved guide-piece e arranged within the top d of the lantern, and connecting the
top-portions of the said bows, one of the latter terminating inside of the said
top d, the other outside of the same, said curved piece c being guided by a slot d²
in the top d, and being curved so as to have the radius of curvature proceed from
the point of oscillation, or constant bearing-point, of the glass, substantially as
shown and described.
Dated this 9th day of November 1894.
EDUARD SOMMERFELD,
By Geo. H. Rayner,
37, Chancery Lane, London, W.C., Agent for the Applicant.