Improved Closing-device for Capsules designed to contain Gas or other Fluid under High Pressure.
Year: 1897

page_text: Date of Application, 2nd Mar., 1897
Complete Specification Left, 29th Sept., 1897-Accepted, 20th Nov., 1897
Date of Application, 2nd Mar., 1897
Complete Specification Left, 29th Sept., 1897-Accepted, 20th Nov., 1897
Improved Closing-device for Capsules designed to contain Gas or
other Fluid under High Pressure.
A communication from abroad from FRANZ JOSEF BRISCHLAR, of 13 Schaffhauser-
strasse, Zurich, Switzerland, Engineer.
I, WILLIAM LLOYD WISE, of 46 Lincoln's Inn Fields, in the County of London,
Consulting Engineer and Chartered Patent Agent, do hereby declare the nature
of this invention to be as follows:-
This invention relates to a valveless closing-device for capsules for containing
gases. or liquids under high pressure, with which the introduction of the gases or
other fluids into the capsule takes place through an annular space provided at
the neck of the latter and the closure is effected by a packing-ring or disc that
forms an insertion without any opening after the upper part of the neck of the
capsule has been bent over so as to permanently press upon the packing.
This kind of closure enables filling to be effected in a quick and certain manner
without necessitating too difficult and too long operations in the production of
the capsule and without any injury to the strength thereof. Moreover, with this
closing-device a capsule can be filled more quickly than e.g., when the gas or
liquid is introduced centrally, and the pressure-conditions are more favourable
to filling.
The accompanying drawings show three examples of the device in a detailed
manner.
Fig. 1 shows a longitudinal section of a capsule hermetically closed..
Fig. 2 shows the body of the capsule before the introduction of the parts of the
closing device.
Fig. 3 shows the body of the capsule after the introduction of the parts but
before the closure has been effected.
Figs. 4 and 5 show to a larger scale and in vertical section and plan respec-
tively, a cap for use as the cover of the device.
Fig. 6 shows in section a ring of the device.
Figs. 7 and 8 show a packing-ring in section and plan.
Fig. 9 shows to a larger scale than Fig. 3 a section of the capsule with the
closing-parts inserted but before closure has been effected.
Fig. 10 shows a modification of the closing-device after the closing-operation
has taken place.
. Figs. 11 and 12 show a further modification and respectively represent the parts
in the position for the introduction of fluid and after closure.
The capsule a, which is intended for the reception of gases or liquids under high
pressure e.g., carbonic acid-has a neck a¹, which is provided internally with a
small projection or shoulder a intended to serve as a seat for the cover of the
device. The cover 6 is shown cap-like in Fig. 4; when made of this form it is
intended that its upper surface, shall project above the rim a* of the closure.
Price 81

page_text: The cap has a rim 6º, which rests on the internal shoulder a° of the capsule a.
The rim 60 must not quite fill up the internal space of the neck but must yet
rest sufficiently upon the internal projection a. Although the rim 6° lies on the
internal shoulder aº it does not close hermetically, for the jointing-surface is too
small and the corresponding abutting surfaces are not smooth enough to produce
hermetic closure; in order to render more certain, however, the passage of the gas
or the like into the capsule parts of the rim 60 may be bent over, as is shown
in Fig. 5 in three places. On the rim 60 there rests a ring c of not too soft but
yet sufficiently elastic material, which likewise in an impressed state does not
completely fill up the internal space of the neck, but still leaves only such a
small interspace that on the subsequent application of pressure a complete obtura-
tion takes place between the packing-ring c and the capsule neck. On the
packing-ring c rests a pressure-piece (shown as of ring shape in Figs. 6 and 9),
which likewise does not quite come into contact with the inside of the capsule
neck so that, as already pointed out, the charging of the capsule can, when
the closing-parts are inserted, take place through the annular opening between
the neck and the closing-parts d, c and 6º.
After the capsule has been filled in any desired suitable manner, the upper part
or edge portion of the capsule neck is turned over as shown at as in Fig. 1. In
the formation of the edge a² a considerable pressure is exerted on the rim d,
which is communicated to the packing-ring e, in consequence of which the latter
ia compressed vertically and expanded radially so as to fill up completely the
annular filling-passage. The edge a² serves at the same time for strengthening
the neck of the capsule.
Fig. 10 shows another example in which the cover is not made cap-shaped, but
simply as an ordinary disc. Consequently the packing-piece c and the pressure-
piece d are also made of disc shape instead of annular as in the other examples
shown.
-
Fig. 11 shows a further example, in which the pressure-piece d is omitted and
has its place taken by the turned over edge of the capsule-neck, as is specially shown
in Fig. 12, which shows the capsule closed, whereas Fig. 11 shows the capsule
in the condition for the introduction of fluid. It is advisable in this case to
make the annular packing piece e somewhat thicker What is essential in all
these cases is the employment of the annular filling passage between the capsule-
neck and the central closing-piece located therein
Dated this 2nd day of March 1897
W. LLOYD WISE,
46 Lincoln's Inn Fields, London W.C., Chartered Patent Agent
Improved Closing-device for Capsules designed to contain Gas or
other Fluid under High Pressure.
I, WILLIAM LLOYD WISE, of 46 Lincoln's Inn Fields, in the County of London,
Consulting Engineer and Chartered Patent Agent, do hereby declare the nature.
of this invention, (a communication to me from Franz Josef Brischar, of 13
Schaffhauserstrasse, Zurich, Switzerland, Engineer) 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 valveless closing device for capsules for containing
gases or liquids under high pressure. The introduction of the gases or other

page_text: fluids into the capsule take place through an annular space provided at the neck
of the latter, and the closure is effected by the aid of a packing-ring or disc that
forms an insertion without leaving any opening or passage after the upper part
of the neck of the capsule has been bent over so as to permanently press upon
the packing.
This kind of closure enables filling to be effected in a quick and certain manner
without necessitating too difficult and too lengthy operations in the production of
the capsule and without any injury to the strength thereof. Moreover with this
closing device a capsule can be filled more quickly than when the gas or
liquid is introduced centrally, and the pressure-conditions are more favourable
to filling.
The drawings accompanying my Provisional Specification show three examples.
of the device in a detailed manner.
Fig. 1 shows a longitudinal section of a capsule hermetically closed.
Fig. 2 shows the body of the capsule before the introduction of the parts of the
closing device.
Fig. 3 shows the body of the capsule after the introduction of the parts but
before the closure has been effected.
Figs. 4 and 5 show to a larger scale and in vertical section and plan respec-
tively a cap for use as the cover of the device.
Fig. 6 shows in section a ring of the device.
Figs. 7 and 8 show a packing-ring in section and plan.
Fig. 9 shows to a larger scale than Fig. 3 a section of the capsule with the
closing parts inserted but before closure has been effected.
Fig. 10 shows a modification of the closing device after the closing operation
has taken place.
Figs. 11 and 12 show a further modification and respectively represent the parts
in the position for the introduction of fluid and after closure.
The capsule a, which is intended for the reception of gases or liquids under high-
pressure, c.g., carbonic acid, has a neck a¹, which is provided internally with a
small projection or shoulder a° intended to serve as a seat for the cover of the.
device. The cover bis shown cap-like in Fig. 4; when made of this form it is
intended that its upper surface, shall project above the rim a² of the closure.
The has a rim to, which rests on the internal shoulder aº of the capsule a.
cap
The rim 6 must not quite fill up the internal space of the neck but must yet
rest sufficiently upon the internal projection a". Although the rim 6° lies on the
internal shoulder ao it does not close hermetically, for the jointing surface is too
small and the corresponding abutting surfaces are not smooth enough to produce
hermetic closure; in order to render more certain, however, the passage of the gas
or the like into the capsule parts of the rim 6° may be bent over, as is shown
in Fig. 5 in three places. On the rim 60 there rests a ring c of not too soft but
yet sufficiently elastic material, which likewise in an unpressed state does not
completely fill up the internal space of the neck, but still leaves only such a
small interspace that on the subsequent application of pressure a complete obtura-
tion takes place between the packing-ring c and the capsule-neck. On the
packing-ring & rests a pressure-piece d (shown as of ring shape in Figs. 6 and 9),
which likewise does not quite come into contact with the inside of the capsule
neck so that, as already pointed out, the charging of the capsule can, when
the closing parts are inserted, take place through the annular opening between
the neck and the closing parts d, c and 60. After the capsule has been filled in
any desired suitable manner, the upper part or edge portion of the capsule neck
is turned over as shown at 2 in Fig. 1. In the formation of the edge a² a
considerable pressure is exerted on the ring, which is communicated to the
packing ring c, in consequence of which the latter is compressed vertically and
expanded radially so as to fill up completely the annular filling passage. The
edge a serves at the same time for strengthening the neck of the capsule.
Fig. 10 shows another example in which the cover is not made cap-shaped, but

page_text: simply as an ordinary disc. Consequently the packing-piece c and the pressure-
piece d are also made of disc shape instead of annular as in the other examples
shown.
Fig. 11 shows a further example, in which the pressure-piece d is omitted and
has its place taken by the turned over edge of the capsule-neck, as is specially shown
in Fig. 12, which shows the capsule closed, whereas Fig. 11 shows the capsule
in the condition for the introduction of fluid. It is advisable in this case to
make the annular packing piece e somewhat thicker What is essential in all
these cases is the employment of the annular filling passage between the capsule-
neck and the central closing-piece located therein
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is:-
:-
1. The improved closing-device for capsules designed to contain gas or other
fluid under high pressure substantially as herein set forth.
2. A closing-device for capsules designed to contain gas or other fluid under
high pressure, comprising a central closing piece or packing of annular or disc
form located within the capsule-neck, a cap-like or disc form carrier for such
closing piece or packing, a shoulder or ledge within the capsule-neck to support
said carrier and closing piece or packing, and an annular filling passage between
the capsule-neck and such central closing piece or packing, the closing being
effected by bending the upper part of the capsule-neck over so as to permanently
press upon the packing substantially as herein set forth.
3. A closing device for capsules designed to contained gas or other fluid under
high pressure, comprising a closing piece or packing located within the capsule-
neck, a shoulder or ledge within the capsule-neck to support such closing piece
or packing, and a filling passage between the capsule-neck and the outer edge of
the closing piece or packing, the closing being effected by bending the upper part
of the capsule-neck over so as to permanently press upon the packing substantially
as herein set forth.
Dated this 29th day of September 1897
HARRIS & MILLS,
23 Southampton Buildings, London, W.C., Agents.