Improvements in Bottles and other Stoppered Vessels for Measuring Liquids Dropwise.
Year: 1889

page_text: Date of Application, 9th Sept., 1889-Accepted, 12th Oct., 1889
COMPLETE SPECIFICATION.
Improvements in Bottles and other Stoppered Vessels for
Measuring Liquids Dropwise.
1, ISIDOR TRAUBE, of No. 9 Göthe Strasse, in the City of Hanover, Germany,
Doctor of Philosophy, do hereby declare the nature of my said invention, and in what
manner the same is to be performed, to be particularly described and ascertained in
and by the following statement:—
My invention relates to a drop counter or device for enabling medicine and other
fluids to be measured dropwise. Not only chemists and medical men but also all
persons requiring to take medicine will know how difficult it is to count out the drops
and to obtain drops of equal proportions. Various means have been resorted to attain
this object but without success.
Now in order to attain this said object I have constructed a drop counter or
measure, in which the drops do not fall from the neck of the bottle, as has hitherto been
customary, but from the stopper, so that any fluid remaining after the last drop has
fallen will not, as is the case with drop bottles in which the said drops fall from a lip on
the neck of the bottle, run down the outside of the bottle but will run back into
the bottle. This is of special advantage for all caustic and poisonous fluids. The
stopper is ground into the neck of the bottle, which is provided with special lateral
channels or grooves, said stopper being provided with a projecting lip and suitable
grooves or channels for the admission of air and for allowing the fluid to slowly pass
dropwise from the stopper lip; or the stopper can be made hollow and ground so as
to fit air tight onto the neck of the bottle, said stopper being specially adapted
for use with alkaline fluids, as internal stoppers are too liable to become clogged and
so firmly attached to the neck of the bottle that the same very often necessitates the
breakage of the bottle.
The stopper is provided with a fine tube or nozzle from which the drops exude,
and at the opposite side with a small opening corresponding with a like opening in
the neck of the bottle for the admission of air. Both kinds of stoppers can be
employed to admirable advantage for all kinds of fluids and in both cases drops of
like size are attained with almost perfect exactitude.
In the accompanying drawings, Figure 1 is a vertical section of the drop counter
or measure ready for producing drops of medicine or other fluids.
Figures 2 and 3 are both sections on the line a, a, in Figure 1, showing the stopper
in different positions.
Figure 4 is a vertical section of my improved drop counter or measure with the
stopper closed.
Figures 5 to 8 represent one of the various modifications of my improved drop
counter or measure in which the stopper is inserted in the neck of the bottle.
Figures 9 to 11 represent my improved drop counter or measure with the stopper
applied to the neck of the bottle, which is specially adapted for larger vessels.
In order to attain my said object and prevent the soiling of the outer surface of the
bottle or vessel I cause the fluid to flow along the groove a onto a circular drop
surface of the stopper until a drop of corresponding diameter collects on the said
surface, thus securing drops of equable form and size.
Bottles or vessels constructed on my improved system, according to which as
aforesaid the drops will drop from the stopper but the surplus fluid will flow back
through the hollow stopper into the vessel, are specially advantageous. Another
great advantage is that the vessels on my system can be manufactured cheaper than
on any other system as it is always cheaper to make a solid than a hollow stopper.
The stopper A is provided with three grooves a, b, c, of which a and b are in con-
nection with the enlarged part d of the neck of the bottle and form the outlet canal,

page_text: whilst the air inlet groove c, is in connection with the groove or enlarged part e of the
neck of the bottle when drops are required to issue from the stopper.
When the stopper is turned the grooves or ways a, b, d, are in communication,
whilst the air ways c, e, are in also in communication, in which position the fluid in the
bottle can be caused to drop from the stopper. As soon as the stopper is turned the
air inlet and also the fluid outlet will be securely closed.
External cap-like stoppers can be blown, cast or formed in suitable presses and
the neck of the bottle also given the requisite form. The stopper is provided at
the one side with a stud or projection a with an appropriate boring d and com-
municating with a groove or channel e in the neck of the vessel so as to allow
fluid to pass through the same to the bored stud or projection a, which thus forms
the drop nozzle. An air inlet b is provided in the neck of the bottle and also in
the exterior stopper so that when it is required to drop fluid from the vessel air
can enter the bottle for this purpose.
The advantages of bottles and other vessels provided with my improved stoppers
or measures are so evident that it is not necessary to enter into a discussion of
the same, and it will be evident to all versed in the art that the size and form
of my improved drop counter or measure can be modified in various manners without
in any way departing from the nature of my said invention.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is: :―
1: A drop counter or measure with stopper A and projection g for producing
drops of like size, said projection being provided with a groove h in its lower
surface for forming the drops, said groove h coming into communication when turned
with the extension d of the neck of the bottle and with the grooves a, b, of the
stopper and thus with the interior of the bottle whilst the air inlet is simultaneously
brought into communication with the interior of the vessel or bottle by means of
suitable grooves in the stopper and extensions or grooves of the neck of the bottle,
substantially as and for the purpose set forth and shown.
2 A drop counter or measure in which the drops do not fall from the neck of the
bottle or vessel, but from a projection of the stopper, so that the fluid remaining from
the last drop does not flow down the outside of the bottle, but back into the bottle or
vessel, substantially as set forth and shown.
3-A drop counter or measure with an external pressed stopper ground onto the
neck of the bottle and provided with a tubular bored nozzle or projection a and an air
inlet b with which a recessed part of the neck of the bottle or vessel communicates,
substantially as and for the purpose set forth in the foregoing specification, and shown
in the accompanying drawings.
Dated this 9th day of September 1889.
ALLISON, BROS.,
Agents for the Applicant.