Improved Packing Lining for Mechanical Stoppers for Jugs, Bottles, and other Vessels.
Year: 1899

page_text: Date of Application, 28th Aug., 1899-Accepted, 21st Oct., 1899
Improved Packing Lining for Mechanical Stoppers for Jugs, Bottles,
and other Vessels.
We, AUGUST SCHROEDTER, of Rixdorf, near Berlin, Manufacturer, PAUL
SCHROEDTER, of 65, Oranienstrasse, Berlin, Merchant, and SALO RADLATER, of
3, Seydelstrasse, Berlin, in the Empire of Germany, 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:--
This invention relates to a packing disc or lining for stoppers, which is inserted
in the closing cover and is pressed therewith tightly on to the upper end of the
vessel by means of screws, wire levers, or any other mechanical pressure or tension
apparatus. This packing lining consists substantially of the actual packing disc
made of cork, india-rubber or other suitable material and of a metal lining or
casing surrounding its edge.
In the accompanying drawing, the invention is shown in four different forms in
each case by a vertical section and plan. In all the forms the packing disc a
may be made of any suitable material. Cork is however preferably employed,
cork being the most wholesome and cleanest kind of packing material. It is
also desirable that the cork disc should be previously made impervious, for
instance, by filling up the holes or pores with pine resin pitch or other suitable
impregnating substance. The under side serving for tightening is subsequently
freed from the adhesive substance by being scraped or rubbed down or a second
and very thin layer of cork is placed over it.
In Fig. 1 the packing lining consists of the solid disc a and the metal cap b
which surrounds the top and the outer edge of a, and having a border c bent round
the disc to make it watertight.
In Fig. 2 the packing lining likewise consists of a solid disc a and a metal
ring d surrounding its outer edge the borders e and f of the ring being bent
round above and below so as to secure a watertight effect as above.
In Fig. 3 the packing a is formed by a ring with central recess and accord-
ingly the cap-shape metal lining & with borders c is also made ring shape.
In Fig. 4 finally, the outer and inner edges of the ring shaped packing disc a
with central recess g are each enclosed by a metal ring d with borders e and f
bent round securing a watertight effect.
The combination of the packing disc with a metal covering has the following
advantages. Hitherto it has frequently happened that a simple packing disc
without such covering fell out of the closing cover or was pulled out in conse-
quence of adhesive material remaining on to the edge of the vessel, because by
shrinking, it became smaller or was put considerably out of shape by being
pressed vigorously on to the edge of the vessel. The metal covering, on the
contrary, remains unaltered in its dimensions and accordingly, when inserted
sufficiently tight in the closing cover will reliably prevent the packing lining
from falling out or being pulled out. Moreover, the metal covering increases
the durability of the packing disc, as it firmly embraces the edge thereof and
therefore considerably lessens the deformation of the same. When the material
rp Q77

page_text: of the packing disc is impervious, or in case of cork being used is previously
made impervious, the surrounding metal prevents liquid from reaching the
metal of the closing cover and causing an objectionable formation of verdigris.
The use thereof is therefore more wholesome and cleaner.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that
what we claim is:-
1. Packing lining for the closing covers of bottles, jugs and other vessels,
consisting of a packing disc a of any preferred packing material, preferably cork,
in combination with a surrounding metal casing which surround the edge of
the packing disc a and is bent round, forming a watertight border.
2. Packing lining according to Claim 1, made of a solid packing disc a and
a cap shape metal casing 6 with edge-bordering c (Fig. 1).
3. Packing lining according to Claim 1 made of a solid packing disc a and a
ring-shape metal casing d with edge-borderings e and f (Fig. 2).
4. Packing lining according to Claim 1 made of a ring-shape packing a with
central recess g and of a ring-shape metal cap 6 with edge-bordering c (Fig. 3).
5. Packing lining according to Claim 1 made of a ring-shape packing a with
central recess 9 and of two ring casings d d with edge-borderings e and f. (See
Fig. 4).
Dated this 28th day of August 1899.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.