IMPROVEMENTS IN BOTTLES FOR FACILITATING THE COUNTING OF DROPS OF LIQUID DISCHARGED THEREFROM
Year: 1881

page_text: LETTERS PATENT to Frank Wirth of the Firm of Wirth and Company
Patent Solicitors at Frankfort on the Main in the Empire of Germany
for an Invention of "IMPROVEMENTS IN BOTTLES FOR FACILITATING THE
COUNTING OF DROPS OF LIQUID DISCHARGED THEREFROM" A communication
from Hermann Lamprecht, of Gnarrenberg, and George Hirdes, of Bremen,
both in the Empire of Germany.
PROVISIONAL SPECIFICATION left by the said Frank Wirth at the Office
of the Commissioners of Patents on the 15th December 1881.
FRANK WIRTH, of the Firm of Wirth and Company Patent Solicitors at
Frankfort on the Main, in the Empire of Germany "IMPROVEMENTS IN BOTTLES
FOR FACILITATING THE COUNTING OF DROPS OF LIQUID DISCHARGED THEREFROM."
[A communication from Hermann Lamprecht, of Gnarrenberg, and George Hirdes,
of Bremen, both in the Empire of Germany.]
The object of this Invention is to provide means for facilitating the discharge of
liquid from bottles, drop by drop, in such a manner that the drops may be readily
counted.
The said Invention will be found of considerable advantage for medicine, acid,
and the like.
In carrying the said Invention into practice I make or provide the neck of the
bottle with a lip or spout on one side, and with a conical projection on the opposite
side having therein an aperture for the entrance of air. I also provide a glass
stopper the lower part of which has two faces cut in a taper form so that one of
the same may be presented to the air-aperture to allow the entrance of the air,
the other cut face of the stopper then facing the lower or inner opening of
the lip.

page_text: When it is desired to pour out the liquid contents from the bottle drop by drop,
the stopper must be turned in such a manner as to uncover the two openings; the
air will then enter the air-opening and the contents of the bottle will flow, drop
by drop, out of the lip, upon the bottle being tilted for this purposo.
To close the said openings the stopper need only be turned round so that its
rounded surfaces cover the lip-opening and the air-aperture.
Instead of a glass stopper a common cork inay be used which requires no cutting
out; it is only necessary, in this case, to draw out the cork far enough, that is to
say, above the two openings in the neck of the bottle when the contents of the
bottle are to be discharged.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Frank Wirth in the Great Seal Patent Office on the 14th June
1882.
FRANK WIRTH of the Firm of Wirth and Company, Patent Solicitors, at
Frankfort-on-the-Main, in the Empire of Germany, "IMPROVEMENTS IN BOTTLES
FOR FACILITATING THE COUNTING OF DROPS OF LIQUID DISCHARGED THEREFROM."
A communication from Hermann Lamprecht, of Gnarrenberg, and George Hirdes,
of Bremen, both in the Empire of Germany.
The object of this Invention is to provide means for facilitating the discharge of
liquid from bottles, drop by drop, in such a manner that the drops may be readily
counted. The said Invention will be found of considerable advantage for medicine,
acid, and the like.
In the accompanying Drawing,
Figure 1 represents an elevation of a bottle embodying the said Invention.
Figuro 2 represents a vertical section of the same.
Figure 3 represents the bottle in a horizontal position for the discharge of the
liquid, drop by drop.
In carrying the said Invention into practice I make or provide the neck of the
bottle with a lip or spout R on one side, and with a projection K on the opposite
side, having therein an aperture o for the entrance of air. I also provide a glass
stopper 8, the lower part of which has two inclined faces as shewn in Figure 3, so
that one of the said faces may be presented to the aperture o to permit the entrance
of air, the other inclined face of the stopper then facing the lower or inner opening
of the lip R. When it is desired to pour out the liquid contents from the bottle,
drop by drop, the stopper must be turned in such a manner as to uncover the two
openings, and the bottle, tilted, the air will then enter by the opening o and the
contents of the bottle will flow out of the lip R.
To close the said openings the stopper need only be turned round, so that its
rounded surfaces cover the opening in the lip R and the air aperture o.
Instead of a glass stopper a common cork may be used which does not require
to have inclined faces; it is only necessary, in this case, when the contents of the
bottle are to be discharged 'drop by drop, to partially withdraw the cork until the
two apertures in the neck of the bottle are uncovered. Or any other suitable
stopper may be employed.
Having thus fully described tho said Invention and the manner of performing
the same, I wish it understood that I claim,
A bottle provided at its neck with a lip or spout on one side and with an
aperture through a projection on the opposite side, in combination with a stopper
having two inclined faces, or with a cork or other suitable stopper, all substantially
as, and for the purposes, set forth.
In witness whereof I the said Frank Wirth have horeunto set my hand
and seal this Tenth day of June in the year of our Lord One thousand
eight hundred and eighty two.
FRANK WIRTH. (LS.)