An Improved Stopper for Sterilizing-bottles.
Year: 1899

page_text: Date of Application, 22nd Mar., 1899
LOU
1000
AUL
PROVISIONAL SPECIFICATION.
An Improved Stopper for Sterilizing-bottles.
RICHARD CASSWELL HARRISON, 3, Eltham Road, Lee, Kent, Pharmacist, do
hereby declare the nature of this invention to be as follows:-
This invention relates to an improved stopper with a valve for bottles used in
the sterilization of milk & other liquids. It consists of a stopper having a
hole covered by a valve which will allow the escape of gases or vapour evolved
by the liquid during the process of sterilization and which may be depended on
to close automatically under atmospheric pressure & hermetically seal the bottle
after the sterilization process has been completed.
The improvement is illustrated in the accompanying drawing which forms part
of this specification.
It consists of a stopper D preferably of glass or earthenware, which screws into
a suitable bottle & is rendered air tight at the rim of the bottle by the washer E,
(or the stopper may be made to plug into a bottle & be secured by clamps or
springs.) The stopper is bored from top to bottom & into this a tube AF is
fixed (or the stopper & tube may be made in one piece) this tube A F has a small
hole at C over which is slipped the india rubber tube or valve B. This hole C
permits the escape of gases or vapours from the inside of the bottle to the outside,
but the atmospheric pressure on the valve B from the outside closes C & so pre-
cludes any air passing into the bottle thus retaining the contents of the bottle
sterile.
75
1
1000
RICHARD CASSWELL HARRISON, 3, Eltham Road, Lee, Kent, Pharmacist, 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 an improved stopper with a valve for bottles used for
the sterilization & Pasteurising of milk & other liquids. It consists of a stopper
having a hole covered by a valve which will allow the escape of gases or vapours
evolved by the liquid during the process of sterilization & which may be depended
on to close automatically under external atmospheric pressure & hermetically
seal the bottle after the sterilization process has been completed.
The improvement is illustrated in the drawing accompanying my I'rovisional
Specification.

page_text: It consists of a stopper D preferably of glass or earthenware, which screws into
a suitable bottle & is rendered air tight at the rim of the bottle by the washer E
(or the stopper may be made to plug into the bottle & be secured by clamps or
springs) the stopper is bored from top to bottom & into this a tube A F is fixed
(or the stopper & tube may be made in one piece) this tube A, F', has a hole
at C over which is slipped the india rubber tube or valve B, this hole C permits
the escape of gases or vapours from the inside of the bottle to the outside but
the atmospheric pressure on the valve B from the outside closes C & so precludes
any air passing into the bottle thus retaining the contents of the bottle sterile.
Having now particularly described & ascertained the nature of my said
invention & in what manner the same is to be performed I declare that what
I claim is
A valve stopper for bottles used for sterilizing & Pasteurising milk & other
liquids, having a tube running through it which is open at the bottom & at the
top is closed & provided at the side with a hole over which is placed a rubber
tube which allows the egress of air or vapour from the inside, but prevents the
ingress of air or vapour from the outside.
Dated this 17th day of November 1800'