Improvements in or relating to Sealing or Stoppering Bottles and other Vessels.
Year: 1894

page_text: Date of Application, 13th June, 1894-Accepted, 21st July, 1894
COMPLETE SPECIFICATION.
Improvements in or relating to Sealing or Stoppering Bottles and
other Vessels.
We JOSEF RAAB, Doctor of Medicine, and FRANZ BINGLER, Surgical
Instrument Maker, both of Ludwigshafen-on-the-Rhine, Germany, 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 and accompanying drawings:
:-
Our said invention has for its object an automatic safe and air tight method
of closing flasks bottles and other similar vessels particularly such as are intended
to hold boiled milk and the like sterilised or preserved foods and so constructed as
to easily permit of thorough cleansing.
The rubber stopper a of Figures 1 to 6 has a longitudinal hole b. On the top
are two projections c diametrically opposite to each other and having central
perforations near their bases from where they are split upwards. The perforation
aud slit receive the lateral projections of a disc of rubber d which covers the hole b
in the stopper a. To protect the stopper during transport the top of the bottle f
has projections e diametrically opposed to each other leaving spaces between
through which the stopper can be grasped for purpose of removal. For the sake
of greater durability the sucking tube y for infants is in this case strengthened
inside by a double layer or thickening where it comes against the spaces at the top
of the bottle.
Figures 7-12 show a variation of our said invention. In these figures a¹ is the
rubber stopper provided with a cylindrical hole 6' in such a way that the hole does
not go quite through but is closed at the bottom. In the hole is placed a
peg Figure 8 (preferably of glass). At the neck of the bottle is an aperture e¹
covered with a rubber ring c. The hole & may in some cases he made taper and
be provided with a hollow conical rubber plug such as in Figures 13 to 17 in
which a' is the stopper 6 the conical perforation a hollow conical plug.
The sterilising for instance of liquids is effected by filling the flasks (provided
with the closing device hereinbefore described) with the liquid to be operated on.
The
They are theu placed in a closed boiler partly filled with water and boiled.
steam which arises in the flasks easily escapes through the holes and the
openings e by slightly lifting the disc d, the rubber ring c or the plug d. After
being sufficiently boiled the flasks are removed from the boiler when they
automatically seal themselves during the cooling by which the rubber disc dis
drawn into the hole 6 of the stopper a, the rubber ring c¹ draws into the opening el
and the bottom of the stopper a¹ draws into the neck of the bottle at the same
time raising the peg d¹ (Figure 9). After opening the bottle this peg is pushed
right down into the hole in the stopper a¹ to cause it to swell. The hollow plug d
(Figure 14) is also drawn down into the conical hole 2 (Figure 15) being at
the same time lengthened and expanded while the hole is somewhat contracted.
In each case the stoppers a a¹ a penetrate further into the bottle neck and ensure
a more certain and air tight sealing of the contents.
Although we have hereinbefore described our said invention in its application
to narrow necked flasks it is to be understood that by varying the size and
proportions of the stoppers our said invention is also applicable for sealing other
shapes of receptacles for containing preserved or cooked foods and the like.

page_text: Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we'declare that what we
claim is :-
1. An air tight sealing device for flasks and other receptacles acting automatically
on the cooling of the heated contents by
A. The entrance under atmospheric pressure of the rubber disc d into the
opening of the stopper a.
B. A hollow stopper a provided with a glass peg da rubber ring c¹ over a
lateral perforation el operated by atmospheric pressure. Or
C. A stopper a², an inserted hollow plug fitting in a conical hole b² and
operated by atmospheric pressure.
Substantially as hereinbefore described and shown in the accompanying drawings.
2. The combination of the stopper a the rubber disc d and the recessed bottle
head substantially as and for the purpose set forth and shown in the accompanying
drawings.
3. The combination of the stopper a² the peg the rubber ring c¹ and a laterally
perforated bottle neck substantially as and for the purpose set forth and shown
in the accompanying drawings.
d2
4. The combination of the stopper a² and the conical hollow peg
substantially as and for the purpose set forth and shown in the accompanying
drawings.
Dated Eleventh day of June 1894.
E. T. WHITELOW, A.M. Inst. C.E.,
70, Deansgate, Manchester, Agent for the Applicants.