Improvements in Means for Closing the Mouths of Bottles and other Vessels.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements in Means for Closing the Mouths of Bottles and
other Vessels.
I LOUIS BOUNEU of No. 34 Rue de la Bourse Brussels in the Kingdom of
Belgium Manufacturer do hereby declare the nature of this invention to be as
follows:-
Many methods of closure for bottles, jars barrels and other vessels or receptacles
are based on the use of a cap which is secured around the opening or mouth of the
vessel by rotation and pressure. To render the closure airtight the interior of
the cap is furnished with a washer of cork caoutchouc or analogous elastic material
but the use of the said washer is attended by the inconvenience or defect that when
it is desired to secure the cap tightly by turning it on the opening or mouth of the
vessel the cork or caoutchouc which is compressed between the circular edge or rim
of the opening or mouth of the vessel and the inner face of the top of the cap does
not follow the rotation of the cap and consequently torsion of the said washer is
produced which causes the closure to be imperfect.
The object of the present invention is to remedy the said defect and the said
invention consists in the introduction into the cap between the inner face of the top
thereof and the cork or caoutchouc of a stamped metal washer the central part of
which is made slightly convex or conical so that only the said part will be in
contact with the inner face of the top of the cap. It has also a second circular
convexity and its edges may be bent down so as to form a cup into which the cork
or caoutchouc washer is introduced.
Owing to the double convexity of the metal washer when the compressible cork
washer is pressed on the rim of the bottle neck or of the mouth or opening of the
vessel or receptacle by the turning of the cap the said compressible washer enters
more or less the hollows of the metal washer and thus the edges of the compressible
washer are caused to recede from the walls or inner face of the sides of the cap both
the said washers then forming virtually but one piece which remains stationary on
the rim of the bottle mouth or opening while the cap turns upon the top or apex
of the central convexity of the metal washer.
Dated this 25th June 1896.
W. T. WHITEMAN,
Agent for the Applicant.

page_text: Improvements in Means for Closing the Mouths of Bottles and
other Vessels.
I, LOUIS BOUNEU formerly of No. 34 Rue de la Bourse Brussels now of 45 Rue
d'Artois Brussels in the Kingdom of Belgium 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 :-
Many methods of closure for bottles jars barrels and other vessels or receptacles
are based on the use of a cap which is secured around the opening or mouth of the
vessel by rotation and pressure. To render the closure airtight the interior of the
cap is furnished with a washer of cork caoutchouc or analogous elastic material
but the use of the said washer is attended by the inconvenience or defect that when
it is desired to secure the cap tightly by turning it on the opening or mouth of the
vessel the cork or caoutchouc which is compressed between the circular edge or rim
of the opening or mouth of the vessel and the inner face of the top of the cap does
not follow the rotation of the cap and consequently torsion of the said washer is
produced which causes the closure to be imperfect.
The object of the present invention is to remedy the said defect and the said
invention consists in the introduction into the cap between the inner face of the top
thereof and the cork or caoutchouc of a stamped metal washer the central part of
which is made slightly convex or conical so that only the said part will be in
contact with the inner face of the top of the cap. It has also a second circular
convexity and its edges may be bent down so as to form a cup into which the cork
or caoutchouc washer is introduced.
The accompanying drawings illustrate my invention as applied to a cap for closing
bottles.
Figure 1 is a longitudinal section of the cap.
Figure 2 shows the neck of a bottle constructed to receive the cap Figure 1.
Figure 3 shows in longitudinal section the cap Figure 1 in position upon the
bottle Figure 2 and
Figure 4 is an elevation of the same.
Figure 5 shows a modified construction of the cap.
In these figures a is the cap. the washer of cork india rubber or other
similar material and c the cupped metal washer which forms the object of my
invention.
fis the bottle the neck of which is provided with projecting studs or stops g that
enter the grooves d of the cap a which is then turned until the studs arrive at the
upper ends of the grooves d.
Owing to the double convexity of the metal washer e when the compressible cork
washer is pressed on the rim of the bottle neck or of the mouth or opening of the
vessel or receptacle by the turning of the cap a the said compressible washer b
enters more or less the hollows of the metal washer c and thus the edges of the
compressible washer are caused to recede from the walls or inner face of the sides
of the cap both the said washers then forming virtually but one piece which remains
stationary on the rim of the bottle mouth or opening while the cap turns upon the
top or apex of the central convexity of the metal washer.
To further increase the elasticity of the stopper and to further facilitate rotation
of the capsule the top part of the latter may be made as illustrated in Figure 5
with a central inward projection and a second concentric inward projection forming
the counterpart of the swellings or projections of the metal washer c

page_text: 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 :-
In combination a cap, a washer of cork, rubber or the like and a washer of
inverted cup shape and of corrugated form fitting over the cork washer and
engaging the same with its edges while its central part bears on the interior of
the cap, the contact between the cap and corrugated washer allowing the cap to
turn on the central part of the washer substantially as described.
Dated the Twelfth day of March 1897.
W. T. WHITEMAN,
Agent for the Applicant.