Year: 1897

page_text: JOHANN NADLER, Engineer, 23 Aldgate E. London REINHOLD MERKELT, Householder,.
36 Alfred Place Store Street W.C., London 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 stateinent:—
The accompanying drawing represents a bottle stopper for screwing into the neck
of a bottle, and is fitted inside with a mechanism for filling the bottle and emptying
its contents. Such stoppers are especially adapted for all beverages, which are mixed
with Carbonic acid, such as Sodawater, Lemonade etc.
Bottles provided with such a stopper are filled in the same way, as the well-known
Syphon-bottle, and any quantity of the contents required can be drawn from the
bottle by a slight pressure on the knob b.
The inlet or outlet channel inside the stopper a, which is marked a a, g¹ g11, k is
closed by the small disc c' and the indiarubber ring f and opened for filling or emptying
the bottle as follows:-
Press on the knob b; through the pressure the indiarubber spring d, (placed in the
recess a¹¹, and enclosing the rod c) is compressed like any other spring; by this
means the rod c at the same time separates the disc c¹ from the indiarubber ring f.
When the disc c', through the pressure applied to knob b, is sufficiently forced
down towards the arrow-head k', the channel is opened and allows a free passage for
the liquid and as soon as the pressure on knob b is released, the said passage is
instantly and automatically reclosed by the action of the mechanism and the pressure
of the Carbonic acid.
This stopper can be made for practical use in two different ways, without any
alteration in the mechanism :-
1. With a tube i and a downward spout all as shewn in the full-line drawing.
2. Without a tube and an outlet channel all as shewn by dotted lines in the
drawing all
In the first case the contents of the bottle are drawn by means of the tube i,
and the downward spout all whilst the bottle is in an upright position, and in
the second the bottle must be tilted and the contents poured out through the
chaunel a1111
g. (A short pipe with grooves g₁ inside to allow a free passage for the liquid
after the disc c¹ is pressed downwards and fixed into the stopper a by another short
pipe j) possesses three essential properties :-
1. The upper end squeezes the indiarubber ring f into the part a.
2. In the lower end the tube i is fixed.
3. The small disc c¹ is securely kept in its position against lateral motions.
m is a packing, which encloses the whole length of the screw a¹ and is pressed
For such packing any suitable
between the screw a' and the neck of the bottle.
material such as indiarubber, canvas etc. may be used.

page_text: Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is :-
--
1. On the part a in one piece with inlet and outlet channel either downwards
or upwards and provided outside with a screw-thread a¹.
2. On the part f, which is confined in the part a through the part g.
3. On the part g, (with or without a tube i) inserted into the part a and
fixed from below by the short pipe j.
4. On using the packing m, enclosing the whole length of the thread of the
screw a¹.
5. And on the parts b, c, d, i, and j; the whole of the above named parts
applied according to the description and drawing for improvements in a stopper
for the purpose of screwing into the neck of a bottle.
Dated this 14th day of May 1897
JOHANN NADLER,
23 Aldgate, E., London.
REINHOLD MERKELT,
36 Alfred Place, Store Street, London.