NEW OR IMPROVED APPLIANCES FOR CLOSING OR STOPPERING BOTTLES OR OTHER VESSELS, AND AN IMPROVED CONSTRUCTION OF SUCH BOTTLES OR VESSELS FOR THE PURPOSE OF ADAPTING THEM TO THE SAID CLOSING OR STOPPERING APPLIANCES
Year: 1881

page_text: PROVISIONAL SPECIFICATION left by Lorentz Albert Groth at the Office
of the Commissioners of Patents on the 24th September 1881. A
communication from abroad by Ferdinand Praunegger, of Graz, in the
Austrian Empire.
LORENTZ ALBERT GROTH, K.G.V., Civil Engineer and Proprictor of the
Scandinavian Patent Office, under the Firm of L. A. Groth & Co., 97, Finsbury
Pavement, London, E.C. "NEW OR IMPROVED APPLIANCES FOR CLOSING OR
STOPPERING BOTTLES OR OTHER VESSELS, AND AN IMPROVED CONSTRUCTION OF
SUCH BOTTLES OR VESSELS FOR THE PURPOSE OF ADAPTING THEM TO THE SAID
CLOSING OR STOPPERING APPLIANCES." A communication from abroad by
Ferdinand Praunegger, of Graz, in the Austrian Empire.
The Invention consists in the employment of an elastic closing pad and of a
gripping appliance on bottle or pot-like vessels of glass, porcelain, stoneware, and
other suitable materials, the rim or flange of the neck of these vessels being so
adapted as to furnish a hold fast or bearing for the said gripping appliances so that
this hold fast or bearing does not require fixing to the vessel.
The neck of the bottle or vessel is furnished at its two opposite sides with
projections which serve as holdfasts or bearings for the grippers.
Theso projections are of the same breadth for their whole length and are formed
underneath, in the same direction and to the same angle slightly conical or
wedge shaped, the gripping appliances passing directly under them, or the
projections may be made straight underneath (not conical or wedge shaped),
and in that case the gripping appliances must be mado obliquely conical or wedge
shaped.
The closing appliance consists of a capsule or disc of suitable form provided at
its two opposite sides with grippers or claws.
Into this capsule fits a disc furnished with an elastic closing pad of india rubber,
cork, bladder, or such like material which disc may be turned on its axis and is
pressed on to the opening of the vessel by the pushing in of the capsule and
turning and placing of the grippers or claws under the aforesaid projections on
the bottle or other vessel, thereby hermetically closing the said opening.

page_text: It is obvious that instead of two any other convenient number of projections
may be applied to the vessel with a corresponding number of grippers or claws.
The closing capsule together with the disc may be made of tinned sheet steel,
ebonite, glass, porcelain, stoneware, or other suitable material, the latter substances
being employed especially when tight closing, and consequently special pressure on
the vessel is not required.
If now the capsule is placed on the vessel, and while pressing thereon it be
turned in the proper direction, the elastic pad is tightened by the action of the
grippers or claws on the under sides of the projections formed on the neck of the
vessel. In order to guard against unauthorised opening the elastic pad may bo
secured by wire or string wound round under the projections on the neck of the
vessel, the ends of such wire or string being fastened together with a lead or wax
seal, a ticket, or otherwise.