An Improved Method and Means for Retaining Disk Stoppers upon. the Mouths of Bottles and other Vessels.
Year: 1893

page_text: Date of Application, 15th Feb., 1893-Accepted, 18th Mar., 1893
COMPLETE SPECIFICATION.
An Improved Method and Means for Retaining Disk Stoppers upon.
the Mouths of Bottles and other Vessels.
I, FRANZ SOXHLET, Doctor of Philosophy and Government Professor, of the
Polytechnic, Munich in the Empire of 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 :-
This invention relates principally to the sterilizing of milk and other liquids and.
subsequent exclusion of the air therefrom by the method consisting in heating the
milk or other liquid or matter in a suitable bottle or jar closed by a flat disk of
caoutchouc or the like placed over the mouth and lightly retained there so as to.
permit of escape of air or gas from the vessel during the heating and subsequently
prevent readmission of air by forming a tight pneumatic closure hermetically
Bealed by the pressure of the outer atmosphere as the contents of the vessel cool.
The object of the present invention is to provide a new method and means for
retaining the disk upon the mouth of the vessel during the heating and until the
cooling is so far advanced that the retaining device may be removed without.
danger of the disk falling off.
In place of using an annular sleeve or muff temporarily put over the neck of the
bottle as described in the Specification of my Patent No. 19587 of 1890 I employ
the device hereinafter described which may be used for different sized disks or on
bottles with larger or smaller necks or to a limited extent also for larger or smaller
bottles, and will retain the disk without and tendancy to bind upon the edges of
the disk which are apt to become swollen by absorbtion of fatty matter. The
improved holder is also more easily removed without danger of disturbing the disk.
when the latter is pneumatically set by the overpressure of the outer air, and
when in use presents no direct obstacle to outlet of air or liquid boiling over.
The annexed drawing illustrates the improved holder upon a bottle-Fig. 1 being
a vertical section thereof-Fig. 2 a plan.
b is the disk used for closing the bottle. The improved holder is intended to
engage round the body of the bottle and to press lightly upon the disk stopper in
the centre of the upper surface thereof only with a pressure not more than
sufficient to present a friction which shall prevent accidental lateral slipping of the
disk.
The improved holder may be constructed of a spring band e intended to encircle
so much of the bottle as may be necessary to hold it in place with a light pressure
from this band rises a wire f of sufficient stoutness, this wire being bent over and
downward so as to present a downwardly directed end i as near as possible in the
axial centre line of the mouth of the bottle.
The spring band e is not intended to grip the bottle tightly since it should be
capable of slipping, if inadvertently pushed down too far, under the resilience of
the rubber or like disk b. The smaller the resistance imposed on the escaping air
the greater will be the vacuum subsequently caused on cooling and the better the
closure.
Having now particularly described and ascertained the nature of this said inven-
tion and in what manner the same is to be performed I declare that what I
claim is.
1. The method of retaining a disk stopper over the mouth of a bottle or similar
vessel by means of a temporary holder embracing the bottle or vessel and touching
1

page_text: 2. A holder for retaining a disk stopper temporarily over the mouth of a bottle
or similar vessel, consisting of a spring band adapted to partially encircle the bottle
or vessel and a standing wire fixed to said band, the said wire being bent to
present its end centrally on the disk stopper substantially as described.
Dated this 15th, day, of February 1893.
R. HADDAN,
Herbert Haddan & Co.,
18, Buckingham Street, Strand, London, Agent to Applicant.