Year: 1887

page_text: Date of Application, 26th May, 1887
Complete Left, 19th Jan., 1888
Complete Accepted, 24th Feb., 1888
I, EUGEN DEUTSCH of Mussbach in the Palatinate, Kingdom of Bavaria and
German Empire, do hereby declare the nature of this invention to be as
follows:-
This invention relates to jars or similar receptacles made of glass, porcelain or the
like, and serving for the reception of fruit or other preserves or materials to be kept
therein hermetically sealed.
With the jars having screw covers as heretofore constructed it is not always
possible to obtain a hermetical connection between the necks of the said jars and
the covers, for the reason that the screw-threads, being formed in the said necks
while blowing the glass, but seldom correspond exactly with the threads of the
said covers.
According to my present invention I obviate this difficulty by providing a jar with
screw threads produced in metal (preferably such metal as will exclude all danger of
becoming injurious to health) said threaded metal being fastened upon the neck
of the jar or the like by means of a suitable binding substance not influenced by
the dissolving action of steam. The jar thus provided with a metal thread is then
closed hermetically by means of a metal cover threaded correspondingly, an india
rubber packing ring having previously been placed between the flanged upper
part of the said cover and the upper flange of the said threaded metal fastened
upon the neck of the jar, so that it is compressed as the cover is screwed
down.
The jar may, at the inner surface of its neck, be provided with an annular flange
projecting inwardly and serving as a bearing surface for a disc of cork, parchment or
the like, by which means the contents of the jar or the like are kept out of contact
with the under surface of the said metal cover, which, in this case, should preferably
allow of being screwed down until its under surface will come in contact with said
dise and hold it down upon the said supporting flange.
1
1008
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.

page_text: Improvements relating to the Closing of Jars and other
Receptacles.
I, EUGEN DEUTSCH, of Mussbach, in the Palatinate, Kingdom of Bavaria, and
German Empire, 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 fruit-jars or similar receptacles made of glass or porcelain
and serving for the reception of fruit or other preserves or materials to be kept therein
hermetically sealed.
The object of my said invention is to obtain a hermetical connection between the
necks of the said jars or the like and the covers which are screwed thereon, the screw
threads formed in the said necks while blowing the glass hardly ever corresponding
exactly to the threads of the said covers in the fruit-jars as heretofore
constructed.
According to my present invention this difficulty is obviated by providing the
fruit jars with a screw thread produced in a suitable metal fastened upon the neck of
the jar or the like which immediately below the threaded metal part, is formed with an
annular projection constituting a bearing surface for a packing placed underneath a
threaded metal cover and accurately fitting the threaded metal portion of the neck of
the jar.
In the accompanying drawing,
Figure 1 is a vertical transverse section of one form of my improved jar, the cover
being shown in elevation.
Figure 2 is a sectional view of the neck of the jar provided with the metal
thread.
Figure 3 is an elevation of the threaded metal cover.
Figure 4 is an elevation of an interposed lid.
Figure 5 is a transverse section of an india rubber packing ring, and
Figure 6 is a similar section of a parchment or paper disc to be placed upon the
flange projecting inwardly below the threaded portion of the neck.
A indicates the body of the jar made of glass or porcelain and having a neck a of
corrugated form lined with German Silver, zine or any other suitable metal b which is
cemented tightly to the neck a and provided, on its inner surface, with the threaded
portion 61. Immediately below the lower rim or periphery of this threaded portion bl
is formed upon the neck a an annular flange c projecting toward the interior of the
jar and serving for a bearing surface for a disc d of parchment, paper or the like which
is held thereon by the metal cover B the threaded portion g of the latter accurately
fitting nicely the metal thread 6' on the neck a and tightening the disc d upon its
seat e by means of the interposed lid f, of porcelain or any other suitable material,
surrounded near its lower circumference by the roller packing ring e.
By this

page_text: arrangement the contents of the jar are efficiently prevented from coming into contact
with the threaded portions so that the cover can at any time be readily unscrewed,
whilst on the other hand a thoroughly hermetical closing of the jar is ensured.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed I declare that what
I claim is
First. In a fruit-jar havinglits neck lined with metal provided with a screw thread
the arrangement immediately below the threaded metal portion, of an annular flange c
forming part of the neck and projecting inwardly to form a bearing surface,
substantially as and for the purpose specified.
Second. In a fruit jar having a neck lined with metal provided with a screw thread
the annular flange e forming part of the neck and arranged immediately below the
threaded metal portion so as to project inwardly, in combination with the disc d,
the threaded metal cover B and the interposed lid and packing e, substantially as and
for the purpose specified.
1011 1
CY
1000
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.