Improvements in and relating to Jars or other Receptacles for Preserves, and the like.
Year: 1896

page_text: Improvements in and relating to Jars or other Receptacles for
Preserves, and the like.
I, LUDWIG WURZBURG, of 4 Fenchurch Buildings in the City and County of
London; Merchant; do hereby declare the nature of this invention to be as
follows:
My invention relates to jars or other receptacles for preserves and the like
which are so made that they may be handled with facility, packed closely together
in a case or box, and from which the preserves or other contents can be readily
removed without breaking or destroying the entirety thereof. This latter feature
is a decided advantage especially when the jar is used for containing ox-tongue,
lobster or other flesh or fish meats or substances usually encased in a gelatinous
envelope. By filling such substances into jars of the kind forming the subject
of this invention contents can be turned out whole ready for the table.
further advantage resulting from the use of jars or receptacles made according
to my invention is that when empty, and if so desired, the jar or receptacle may
be used as a drinking vessel or for other suitable purposes.
A
My invention furthermore relates to the air-tight closing of the jars or recep-
tacles after sterilization of the contents in such a way that the cover or lid can
be removed quickly and without damaging or breaking it. By this invention
therefore, glass or other brittle material may be advantageously used for the
manufacture of the jars or receptacles and the covers or lids for same, but any
other material of suitable rigidity may be used. According to this invention
the jar or receptacle is made of an uniform internal and external diameter from
top to bottom and smooth inside and outside, and with a suitable base on which
it may be stood upright. The cover or lid is made in the form of a disc of such
size as to be flush all round with the exterior walls of the jar or receptacle when
laid thereon. This disc cover is flat on the top surface and on the other surface
is provided with a perpendicular wall or downwardly projecting flange which
extends almost completely round the disc, one part being interrupted or formed
with a gate or way. This flange is situated at such a position on the disc as to
just allow room for the expansion of the glass during the sterilization process.
A rubber packing ring is placed on this flange, and forms a packing between
the lower surface of the cover outside the flange and the flat top surface of the
edge of the jar or receptacle.
During the process of sterilization of the contents the cover or lid is held on
by a spring fastening pressing on the top of the cover or lid and taking under
the base of the jar or receptacle. When the sterilization is completed this spring
fastening may be removed, the cover being held close on the jar by the external
atmospheric pressure thereon.
To open the jar, the rubber packing is pressed inwards by the edge of a coin or
other suitable device, through the gate or way in the flange on the under surface

page_text: of the disc, thus allowing air to enter the interior of the jar destroying the
partial vacuum wherein, whereupon the lid or cover can be lifted off.
Dated this 23rd day of November 1896..
F. W. GOLBY,
36 Chancery Lane, London, W.C., Patent Agent for the Applicant.
Improvements in and relating to Jars or other Receptacles for
Preserves, and the like.
I, LUDWIG WURZBURG, of 4 Fenchurch Buildings in the City and County of
London; Merchant; 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 jars or other receptacles for preserves and the like
which are so made that they may be handled with facility, packed closely together
in a case or box, and from which the preserves or other contents can be readily
removed without breaking or destroying the entirety thereof. This latter feature
is a decided advantage especially when the jar is used for containing ox-tongue,
lobster or other flesh or fish meats or substances usually encased in a gelatinous
envelope. By filling such substances into jars of the kind forming the subject
of this invention contents can be turned out whole ready for the table.
further advantage resulting from the use of jars or receptacles made according
to my invention is that when empty, and if so desired, the jar or receptacle may
be used as a drinking vessel or for other suitable purposes.
A
My invention furthermore relates to the airtight closing of the jars or recep-
facles after sterilization of the contents in such a way that the cover or lid can
be removed quickly and without damaging or breaking it, or any other part.
By this invention therefore, glass or other brittle material may be advantageously
used for the manufacture of the jars or receptacles and the covers or lids for
same, but any other material of suitable rigidity may be used.
In the accompanying drawings Fig. 1 is a vertical section through a jar or
receptacle made according to this invention, and Fig. 2 is a similar view of the
cover or lid for use with said jar or receptacle; Fig. 3 is an inverted rlan of the
cover or lid; Fig. 4 is a sectional elevation of a portion of the jar and the cover
showing the same air tightly closed thereon, and Fig. 5 is an elevation of the jar
and cover and the closing spring used therewith during the process of sterilization.
The same letters of reference where they occur are used to denote the same or
corresponding parts in all the Figures.
According to this invention the jar or receptacle A, as shown in Fig. 1, is
made of an uniform internal and external diameter from top to bottom and smooth
inside and outside, and with a suitable base on which it may be stood upright.
The cover or lid B (Figs. 2 and 3) is made in the form of a disc of such size as
to be flush all round with the exterior walls a of the jar or receptacle A when
laid thereon, see Figs. 4 and 5. This disc cover or lid B is flat on the top surface
and on the under surface is provided with a perpendicular wall or downwardly.
projecting flange b which extends almost completely round the disc, one part
being interrupted or formed with a gate or way b'. The cover or lid is preferably
provided with an external notch or other device to indicate the position of the
gate or way : The flange b is situated at such a position on the disc cover or
lid B as to lie inside the exterior walls a of the iar or receptacle A when laid
thereon, leaving a small annular space a¹ (see Figs. 4 and 5) between said
flange and the walls a, so as just to allow room for the expansion of the

page_text: contiguous parts of the glass or other material during the sterilization process. A
rubber packing ring C, of any suitable section, which is just large enough to lie
without being stretched on the outside of the flange b on the cover or lid B, is
placed around and outside the said. flange b, and forms a packing between the
lower surface 63 of the cover or lid B outside the flange, and the flat top surface a³,
of the exterior walls a of the jar or receptacle A.
During the process of sterilization of the contents the cover or lid B is held on
by a spring fastening, such as is shown at D in Fig. 4, pressing on the top of
the cover or lid and taking under the base of the jar or receptacle A. This
spring acts in the usual manner, the cover being slightly raised, against the
pressure of said spring, under the action of the steam produced in the sterilization
process, allowing the steam to escape from the interior of the jar. When the
sterilization is completed this spring fastening D may be removed, the cover
being held closed on the jar by the external atmospheric pressure thereon, the
elastic packing ring C forming a perfectly air-tight joint between the jar and
its cover.
To open the jar, the rubber packing C is pressed inwards, by the edge of a coin
or other suitable device, through the gate or way b¹ in the flange b on the under
surface of the disc cover B, thus allowing air to enter the interior of the jar
through such gate or way b¹ thereby, destroving the partial vacuum inside the
receptacle, whereupon the lid or cover can be lifted off.
It will be obvious that several modifications may be made in the cover without
departing from the nature of the invention. For example the cover need not
necessarily be made, flush with the outer walls of the jar or receptacle, the down-
ward b may have more than one interruption if desired and it may be inclined
instead of being at right angles to the under surface of the cover, and the cover
itself may be made of any suitable conformation other than a flat disc
form. With a flat top cover, however, such as is shown in Figs. 2 to 5, the jars
or receptacles when closed can be handled with facility and will pack closely
together in a case or box. It will furthermore be obvious that the cover and the
method of closure hereinbefore described may be applied to receptacles having
tapering bottle necks.
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 jar or other receptacle for preserves or the like made of an uniform
internal and external diameter, a cover for said receptacle with an interrupted
flange on its under surface to lie inside the walls of the jar or receptacle, and an
elastic packing ring lying outside said flange on the cover and on the top of
the walls of the jar or receptacle for the purpose of effecting an air-tight closure
between the jar and the cover under the action of a vacuum produced inside the
jar by the sterilization, substantially as described.
2. A jar or other receptacle for preserves or the like, a cover for said receptacle
with an interrupted flange on its under surface to lie inside the walls of the mouth
of the jar or receptacle, and an elastic packing ring lying outside said flange on
the cover and on the top of the walls of the jar or receptacle for the purpose of
effecting an air-tight closure between the jar and the cover under the action of
a vacuum produced inside the jar by the sterilization, substantially as described.
F. W. GOLBY,
36 Chancery Lane, London, W.C., Patent Agent for the Applicant.