Improvements in Cork-screws.
Year: 1894

page_text: Date of Application, 15th Aug., 1894-Accepted, 15th Sept., 1894
Improvements in Cork-screws.
1, JOHANNES ALEXANDER KRUSEMAN of Lisse near Leyden in the Kingdom
of Holland, Gentleman, 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 an improved cork-screw, by means of which the gases
contained in bottles, can escape before the cork is pulled out.
As is well known in uncorking bottles which contain aërated liquids a great
quantity of the gas escapes with very great force and carries a part of the bottle's
contents along with it, so that this latter part is not only lost but is also very
objectionable, owing to its spattering all about.
This improved cork-screw which forms the object of this invention also assists in
uncorking bottles which do not contain aërated liquids as it prevents the rarefaction
of air which takes place underneath the cork in pulling out the same, so that the
uncorking of a bottle containing all other liquids is facilitated by using my improved
cork-screw.
The improvement consists in having an aperture or passage through the stem of
the cork-screw along its longitudinal axis, so that as soon as the cork-screw has
pierced the cork, a communication is established between the space underneath the
cork and the outside air, the gases will then escape before the cork is pulled out.
Figure 1 of the accompanying drawing is an elevation partly in section of my
improved cork-screw and
Figure 2 a view of a pin to be hereinafter described.
In these, A is the cork-screw provided with the aperture or passage a through its
longitudinal axis.
This aperture is bored through from end to end and opens above the handle B
and at the point b a little above the point of the screw. To prevent small particles
of cork entering the aperture a when the cork-screw is screwed in, and by doing so
stopping the passage, a round pin C is provided, which fits exactly into the
aperture a without however closing it airtight. If notwithstanding this the aperture
gets stopped up, the pin C may be used to clear it.
The pin C which is represented in Figure 2, has a loop or eye D on which the
cork-screw may be suspended. As soon as this improved cork-screw has pierced
the cork, the gases escape at once through the aperture a and on withdrawal of the
cork the bottle's contents will not be spattered about.
For all other liquids the rarefaction of air underneath the cork is prevented, so
that corks may be easily withdrawn. The aperture a may be applied to all kinds
of cork-screws even to those of a somewhat altered form, whilst besides the opening b
at the point, round holes may be provided sideways in the stem.
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. A cork-screw having an aperture a bored from end to end along its longi-
tudinal axis whereby communication is made between the space underneath the
cork and the outside air, and by which aperture gases of aërated liquids contained
in the bottle will escape before the cork is withdrawn and in the case of bottles
which contain other liquids a rarefaction of the air underneath the cork is also
prevented, substantially as set forth.

page_text: 2. In cork-screws such as mentioned in Claim 1, the use of a pin C fitting into
the aperture a whereby the said aperture or passage is kept clear of particles of
cork or other obstructions, substantially as described.
Dated this 14th day of August 1894.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicant.