Closure for Bottles, Jars, and like objects.
Year: 1892

page_text: Date of Application, 23rd Aug., 1892-Accepted, 24th Sept., 1892
Closure for Bottles, Jars, and like objects.
I, HERMANN GRAUEL of Paulstr. Berlin in the 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 relates to a closure for bottles, jars, and other vessels which can
only be opened by injuring the closure so that the removal of the same may always
be detected.
In the accompanying drawing
Figs. 1, 2, 3, are sections of the mouth of a bottle with the closure of this
invention applied thereto.
Figs. 4, 5, shew different forms of closing plate.
Fig. 6 shews the method of inserting the closure plate in the neck of a bottle.
Fig. 7 shews the closure plate in the closed position in the neck of a bottle and
shut off air tight by means of an india rubber ring.
The closure consists substantially of a closure plate a of a suitable material such
as paraffined or waxed paper or thin sheet metal that may be tinned, nickled,
silvered or glazed which material with the requisite elasticity must also be to a
certain extent rigid. The diameter of plate a considerably exceeds the clear
diameter of the bottle or jar mouth and is reduced to correspond to such clear
diameter but in such a way that it may be returned to the larger diameter after its
introduction into the neck of the vessel. The reduction of the diameter of the
closure plate a is effected by placing it in a press furnished with the necessary dies
for giving it a rounded, corrugated or undulating form. When sufficiently reduced
in this way
it is placed in the mouth of the vessel to be closed. As the plate is very
thin and of a material suitable for the purpose, the corrugations or undulations may
be removed by slight pressure, the plate then resuming its original extended
diameter and form. Another portion of the closure is formed by a groove b
worked into the neck of the vessel, this groove serving for the reception of plate a
which is placed in the neck of the vessel and pressed down therein by hand or with
a stamp c until the edge of the same arrives at the groove into which it springs
and rests against the bottom of same. By further pressure with stamp c, the plate
not being displaceable, in this way extends well round the groove whilst the
corrugated, undulated or dome shape is pressed out to the original flat shape and
larger diameter. In this way the vessel is closed and cannot be opened without
injury to the closure plate. The opening is effected with a pointed instrument by
which the plate is lifted up out of the groove and then out of the mouth of the
vessel. As plate a only lies loose in the groove bit does not by itself close the
vessel airtight which may be desirable for the conservation of some substances or
liquids, milk for instance, to guard against acidity taking place. If it is desired to
shield the contents of the vessel with an air tight closure this may be obtained by
pouring in a substance capable of hardening such as wax, plaster of Paris, etcetera,
or by filling up the groove with dough, paste, or cement, or by the insertion of an
india-rubber ring as shewn in Fig. 7.
b
If for the closing medium a paper plate or disc a paraffined or impregnated with
wax should be used, it is advisable previous to introducing the same into the mouth
of the vessel to heat it to a temperature nearly that of the melting point of the
paraffine or wax whereby the introduction is facilitated and the smoothness of the
surface of the paper more perfect after cooling.

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 :-
1. A closure for bottles, jars, and like vessels consisting of a plate or disc of a
suitable yielding material having a larger diameter than the clear width of the
mouth of the vessel which larger diameter for the purpose of introducing the plate
or disc into the mouth of the vessel to be closed is reduced to a diameter cor-
responding to that of the mouth of the vessel by giving it a hollow, undulating or
corrugated form and providing in the mouth of the vessel to be closed a groove into
which said plate or disc is pressed and by pressure again returned to its original
larger diameter, substantially as described and shewn.
2. For the purpose of rendering air tight the closure referred to and to secure
the plate or disc in the groove, the filling in of the groove with a suitable
hardening substance which may be poured or pressed therein, substantially as
described.
Dated this 23rd day of August 1892.
CAPITAINE & VON HERTLING,
89, Chancery Lane, London, W.C., Agents for the Applicant.