Improved Means for Sealing Jars and similar Vessels.
Year: 1894

page_text: Date of Application, 10th Oct., 1894-Accepted, 10th Nov., 1894
COMPLETE SPECIFICATION.
Improved Means for Sealing Jars and similar Vessels.
I, ROBERT KARGES of 8 Kleine Bertramstrasse, Brunswick 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 apparatus for sealing jars and similar vessels containing
foods chemicals or similar substances, and its object is to effect the sealing in
such a manner that the covers can not be accidentally removed. For this
purpose the covers, which are held in place by atmospheric pressure, are
[protected by projections from, or contained within recesses formed in, the neck
or mouth of the jar or other similar vessel.
In order that this invention may be more readily understood I have hereto
appended a sheet of drawings reference to which is made hereinafter.
Figure 1 illustrates a section of a jar with its cover in place.
Figure 2.shews a similar section of a jar formed with a modified neck.
Figure 3 represents a still further modification.
As shown in Figure 1 the neck of the jar or other vessel is formed with an
external projection a which protects and prevents the accidental displacement of
the lid or cover the edges of which are bent over or flanged as at e to embrace
the neck of the bottle. Between the cover and the upper edge c of the neck
of the jar is placed an indiarubber or other suitable packing washer or ring d.
The flanged or returned edge e of the cover fits within the angle formed by
the projection a and the neck of the jar, and is thus protected from displacement,
for instauce, when the jar is handled. The cover b may be stamped cut or other-
wise formed from any suitable material such as sheet iron and is preferably cupped
or domed the convex side being placed to the inside of the jar.
In the modification represented by Figure 2 the projection a' is formed in two
steps the lower one being of greater diameter than the higher one and the cover
is formed with a second Hange e'.
A further modification is illustrated in Figure 3. In this case the projection a
is formed upon the edge of the neck of the jar so as to form a recess within which
the cover, in this case plane, is contained. In all cases in order to ensure a perfect
fitting of the cover, is preferred to grind those parts of the jar necks which form.
the seats for the covers.
In sealing a jar with a cover according to this invention the lid or cover bis
placed in position and is held there by a suitable weight during the heating or
cooking process. When the jar and its contents are cooled down the coutained
air is reduced in pressure and the cover is held in place by external atmospheric
pressure.
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 1
claim is :-
1. The combination and arrangement with a jar or similar vessel having a
projecting part or recess formed within around or upon its neck, of a lid constructed
to engage with or to be contained in the projecting part or recess, substantially as
and for the purpose hereinbefore described and as illustrated by the accompanying
drawings

page_text: 2. Means for sealing jars and similar vessels constructed and arranged sub-
stantially as and for the purpose hereinbefore described and as illustrated by the
accompanying drawings.
Dated this 8th day of October A.D. 1894.
WILLIAM E. HEYS,
Agent for the Applicant.