Improvements in Stoppering-devices for Bottles, Jars, and the like.
Year: 1897

page_text: ⚫ Date of Application, 18th Jan., 1897
Complete Specification Left, 5th May, 1897-Accepted, 5th June, 1897
PROVISIONAL SPECIFICATION.
Improvements in Stoppering-devices for Bottles, Jars, and
the like.
I, FERDINAND FLEISCHMANN, of Mödling near Vienna, Austria, Manufacturer,
do hereby declare the nature of this invention to be as follows:-
A device for stoppering vessels according to this invention is designed to be used
in substitution for the corks and other elastic closing devices heretofore generally
employed, and to act also as a safety valve, that comes into action on the occurrence
of excessive pressure of gas or steam within the vessel.. The device consists of a
suitably formed lid or cover having an elastic edge which when the device is
closed, is pressed only with its extreme edge upon the smooth plane or even
somewhat concave or convex annular surface of the mouth of the vessel, so that in
consequence of the elasticity of the extreme bearing edge of the cover a closure is
produced which will conform to any not too great unevenness or small alterations
that may exist or take place in the bearing surface; and
thus fulfils its purpose
even under difficult conditions. On account of the automatic fitting of one part to
the other, such a metallic closing device can be made much lighter and cheaper
than the metal closing devices heretofore employed and having two rigid surfaces
ground together.
My closing device not only affords a perfectly tight closure of the contents of the
vessel as regards the outside, but also constitutes a safety-valve, because in the case
of the occurrence of pressure inside the vessel, the elastic edge of the cover will rise
from its seat without thereby producing an alteration in the position of the mechanism
that presses down the cover.
The accompanying drawings illustrate various constructions of such devices for
closing vessels and for acting as safety valves. The mechanism for applying the
pressure to the closing lid or cover is not shown, because it may be of any known
construction, such as, for instance, an arrangement for closing by means of a screw,
eccentric, lever or wedge.
The cover shown in Fig. 1 consists of an outwardly bulged or convex metal
plate D which is placed with its preferably inwardly rounded edge upon the
smooth edge of the mouth A of the vessel. When the cover is loose, the outer
edge of the cover lies upon the edge of the vessel, and in that position the cover.
may not necessarily close accurately, but as soon as pressure is applied to
the centre of the cover (at P), the elastic force thus produced will cause the
entire edge of the cover to press upon the edge of the vessel, as represented in.
the drawing.
The metal disc D constituting the closing part may, as shown in Fig. 2, be made,
in the form of an inwardly bulged or convex cover with reversely bent or curved.
border, the inwardly rounded edge of which bears upon a smooth recessed surface
provided in the neck A of the vessel and is wholly pressed upon the said surface
so as to close the vessel, when pressure is applied at P to the centre of the
cover.
Fig. 3 shows a closing device acting in exactly the same manner, which may
be formed by the combination of the two closing devices shown in Figs. 1 and 2,

page_text: the arrangement being such that the edge of the lower convex disc is beaded over
the edge of the upper and inwardly concave disc, and, when pressure is applied
to the latter, is pressed by the elasticity of the two discs against the edge of the
mouth of the vessel.
Finally, instead of the metal disc there may be employed as shown in Fig. 4, a
cover of inelastic material such as wood or metal, which is provided at its periphery
with an elastic metal ring the edge of which is, by pressure applied to the body
of the cover, forced all round tightly upon a plane surface of the neck of the
vessel.
In every case, the device for closing the vessel, acts at the same time as a safety
valve, because in the case of the occurrence in the vessel of gas or steam pressure
greater than the pressure applied. to the cover from outside by the closing
mechanism, the elastic edge of the cover will be raised off its seat and will close
again on the cessation of the internal pressure. The closing mechanism that serves
to press the cover upon its seat, retains its position unaltered during the said
operation, because only the edge of the cover is subjected to the action of the
internal pressure.
.
The metal of which the cover or its edge is composed, must be selected according
to the contents of the vessel, so as to obviate any injurious action of such contents
upon the metal and the consequent formation of verdigris, rust, etc.
object metal parts may also be provided with a protective coating.
Dated th: 10th 1
↑ T.
With this
F. WISE HOWORTH,
46, Lincoln's Iun Fields, London, W.C., Agent for the Applicant.
Improvements in Stoppering-devices for Bottles, Jars, and
the like.
I, FERDINAND FLEISCHMANN, of Mödling near Vienna, Austria, 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:-
A device for stoppering vessels according to this invention is designed
to be used in substitution for the corks and other elastic closing devices
heretofore generally employed, and to act also as a safety-valve that comes
into action on the occurrence of excessive pressure of gas or steam within the
vessel.
The device consists of a suitably formed lid or cover having an elastic edge which
when the device is closed, is pressed only with its extreme edge upon the smooth
plane or even somewhat concave or convex annular surface of the mouth of the vessel,
so that in consequence of the elasticity of the extreme bearing edge of the cover a
closure is produced which will conform to any not too great unevenness or small
alterations that may exist or take place in the bearing surface; and it thus fulfils
its purpose even under difficult conditions. On account of the automatic fitting of
one part to the other, such a metallic closing device can be made much lighter and
cheaper than the metal closing devices, having two rigid surfaces ground together
heretofore employed.
My closing device not only affords a perfectly tight closure of the contents of the
vessel as regards the outside, but also constitutes a safety-valve, because in the case

page_text: of the occurrence of pressure inside the vessel, the elastic edge of the cover will rise
from its seat without thereby producing an alteration in the position of the
mechanism that presses down the cover.
The drawings filed with the Provisional Specification illustrate various
constructions of such devices for closing vessels and for acting as safety-valves.
The mechanism for applying the pressure to the closing lid or cover is not shown,
because it may be of any known construction, such as, for instance, a screw
eccentric, lever, or wedge.
The cover shown in Fig. 1 consists of an outwardly bulged or convex metal
plate D which is placed with its preferably inwardly rounded edge upon the
smooth edge of the mouth A of the vessel. When the cover is loose, its outer
edge lies upon the edge of the vessel, and in that position the cover may
not necessarily close accurately, but as soon as pressure is applied to the centre
of the cover (at P), the elastic force thus produced will cause the entire
edge of the cover to press upon the edge of the vessel, as represented in the
drawing.
The metal disc D constituting the closing part may, as shown Fig. 2, be
made in the form of an inwardly bulged or convex cover with reversely bent or
curved border, the inwardly rounded edge of which bears upon a smooth recessed
surface provided in the neck A of the vessel and is wholly pressed upon the said
surface so to close the vessel, when pressure is applied at P to the centre of
the cover.
Fig. 3 shows a closing device acting in exactly the same manner, which may
be formed by the combination of the two closing devices shown in Fig. 1 and 2,
the arrangerient being such that the edge of the lower convex disc is beaded over
the edge of the upper and inwardly concave disc, and, when pressure is applied
to the latter, is pressed by the elasticity of the two discs against the edge of the
mouth of the vessel.
Instead of the metal disc there may be employed, as shown in Fig. 4, a cover of
inelastic material such as wood or metal, which is provided at its periphery
with an elastic metal ring the edge of which is. by pressure applied to the body
of the cover, forced all round tightly upon a plane surface of the neck of the
vessel.
In each case, the device for closing the vessel acts at the same time as a safety-
valve, because in the case of the occurrence in the vessel of gas or steam pressure
greater than the pressure applied to the cover from outside by the closing mechanism,
the elastic edge of the cover will be raised off its seat and will close again on the
cessation of the internal pressure.
The closing mechanism that serves to press the cover upon its seat, retains its
position unaltered during the said operation, because only the edge of the cover is
subjected to the action of the internal pressure.
The metal of which the cover or its edge is composed, must be selected
according to the contents of the vessel, so as to obviate any injurious action of
such coutents upon the metal and the consequent formation of verdigris, rust, etc. '
With this object metal parts may also be provided with a protective coating.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is :-
1. A device for closing vessels and for acting also as a safety valve, consisting of
a cover having an elastic edge the periphery of which is arranged to abut against
the surface surrounding the aperture to be closured and to be forced tightly
all round against the said surface when the cover is pressed down, the arrangement
being such that the edge can rise off its seat in case of excessive internal pressure
occurring in the vessel, the remainder of the cover retaining the position which is
imparted to it by the closing mechanism, substantially as described.

page_text: 2. The stoppering-devices for bottles jars and the like shewn in and described
with reference to the drawings.
Dated this 5th day of May 1897.
F. WISE HOWORTH,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.