Improvements relating to the Stoppering of Bottles for Containing Aerated and other Liquids.
Year: 1887

page_text: Date of Application, 8th Sept, 1887
Complete Left, 23rd Dec., 1887
Complete Accepted, 27th Jan., 1888
Improvements relating to the Stoppering of Bottles for Containing
Aerated and other Liquids.
I, HENRY HEARTFIELD, of Handcroft Road, Croydon, in the County of Surrey,
Foreman of Mineral Water Works, do hereby declare the nature of this invention to
be as follows :—
My invention relates to the stoppering of bottles for containing aerated and other
liquids; and has for its chief objects to accomplish the same in such a manner that
the corks can be retained in the bottles without the employment of wires or the like
and that they can also be easily removed by hand without the aid of a cork screw or
other instrument.
According to my said invention the interior of the bottle neck near the mouth is
provided with a screw thread, inclined towards the interior of the bottle in such a
manner that a cork can readily be introduced in the ordinary manner, while in order
to remove the same it is necessary to turn the cork in one or other direction (according
to whether the thread is right or left handed) as otherwise the inwardly projecting
threads would cause the cork to break. These threads also have such a firm hold
upon the cork that the same is not likely to be blown out by any pressure within the
bottle.
Should a cork accidentally break it can be easily removed by means of a cork screw.
The thread in the bottle.necks is preferably made left handed, so that after the cork
screw has been inserted by turning the same to the right the continued rotation of the
same in the same direction will effect the unscrewing of the cork.
nd the 0th Jan of Santambar 1887
G. F. REDFERN & Co.,
4, South Street, Finsbury, London,
Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements relating to the Stoppering of Bottles for Containing
Aerated and other Liquids.
I, HENRY HEARTFIELD, of Handcroft Road, Croydon, in the County of Surrey,
Foreman of Mineral Water Works, 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:-
My invention relates to the stoppering of bottles for containing aërated and other
liquids and has for its chief objects to accomplish the same in such a manner that
the corks can be retained in the bottles without the employment of wires or the like,
and that they can be easily removed by hand without the aid of a cork-screw or other
instrument.
According to my said invention the interior of the bottle neck near the mouth is
provided a screw thread, inclined towards the interior of the bottle in such a manner
that a cork can readily be introduced in the ordinary manner while in order to
remove the same it is necessary to turn the cork in one or other direction (according
to whether the thread is right or left handed) as otherwise the inwardly projecting
threads would cause the cork to break. These threads also have such a firm hold
upon the cork that the same is not likely to be blown out by any pressure within the
bottle.
Should a cork accidentally break it can be easily removed by means of a cork-
screw. The thread in the bottle necks is preferably made left handed, so that
after the cork-screw has been inserted by turning the same to the right the
continued rotation of the same in the same direction will effect the unscrewing of
the cork.
In order that my said invention may be clearly understood I will proceed to describe
the same with reference to the accompanying drawing in which
Figure 1 is a vertical section of the neck of a bottle provided with my improve-
ments, and
Figure 2 is a similar view showing the cork inserted therein.
a is the bottle neck, and b is the screw thread (known as a buttress thread) formed
therein. The inclines of the sides of the thread are not alike on both sides of the apex,
the side of the thread nearest the bottle mouth being much deeper from the apex to
the base of the thread than that of the other or short side which is practically at right
angles to the long side.
It will thus be seen that the surface of the neck of the bottle from the outside to
the inside is practically continuous, whilst from the inside to the outside each convolu-
tion of the thread forms a shoulder.
With this construction very little, if any, resistance is offered to the introduction of
a cork into the bottle neck. When, however, the cork is introduced it expands and
enters the groove of the thread and is thus prevented from being blown out by the

page_text: pressure within the bottle, if any, without the use of wires. The cork may be removed
in the same manner as an ordinary screw stopper by grasping the projecting portion
of the same and screwing it out.
Although I have described my invention as being applied to bottles for containing
aerated and other liquids it is obvious that it may be applied to bottles or vessels for
containing other substances such as pickle.
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 bottle for aerated and other liquids provided with screw threads in the neck
which from the exterior to the interior thereof form a practically continuos
surface, whilst in the opposite direction they constitute shoulders, for the purpose
specified.
2. A bottle adapted to be closed by a stopper which can be forced in under pressure
but the removal of which is effected by rotating the said stopper substantially in the
manner herein before described.
3. The manufacture and use of bottles provided with improved means for
stoppering the same substantially as described with reference to the accompanying
drawing.
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