Improvements in Devices for Delivering Liquid from Vessels Drop by Drop.
Year: 1897

page_text: Date of Application, 13th Feb., 1897-Accepted, 3rd Apr., 1897
COMPLETE SPECIFICATION.
Improvements in Devices for Delivering Liquid from Vessels Drop
by Drop.
I, JULIUS MAGGI, of Kempthal, Switzerland, General Manager, 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 a device for use with vessels for enabling liquid contained
therein to be allowed to flow out drop by drop. The said device consists of a mouth-
piece of relatively narrow bore which is adapted to be inserted into the mouth of the
vessel so that when the liquid flows out through the bore the air to take its place
enters therethrough in the direction opposite to that of the out-flowing liquid. The
mouth-piece is further formed with an annular projection that serves as an abutment
with which the mouthpiece can hear against the mouth of the vessel.
Several examples of this device are represented in the accompanying drawings:
Fig. 1 shows a vertical section of an example having a solid annular projection,
mounted on a bottle ;
Fig. 2 shows a vertical section of an example having a hollow projection likewise
mounted on a bottle; and
Figs. 3 and 4 show in vertical section and front elevation respectively an example
baving a hollow annular projection and a lateral aperture.
In the example shown in Fig. 1, the mouthpiece a has a central bore b, which is
considerably narrower than the neck of the bottle in which the mouthpiece is
fastened by means of a perforated plug p. The mouthpiece is in this case made in
the form of a tube, provided about midway between its ends with a solid annular
projection c which, as shown, serves, when the mouthpiece is mounted in place, as an
abutment with which the mouthpiece can bear against the mouth or neck of the bottle.
On letting out any liquid that may be in the vessel, the air to take its place can, of
course, enter the vessel only through the bore 6 of the mouthpiece, and, consequently,
in the direction opposite to that of the outflow of the liquid, so that the liquid can
only flow out drop by drop, and even then the vessel must be strongly shaken in
order to eject the drops that have passed into the mouthpiece.
In the example shown in Fig. 2, the mouthpiece has a hollow annular projection c¹
in which, after each discharge of liquid, some liquid remains behind when the bottle
is placed upright again and does not flow back into the bottle but in the cavity
closes the bore towards the bottle-neck. By this means, in this example, the bottle
is closed as regards the outside by the liquid which remains behind in the cavity of
the annular projection, so that the additional use of a separate means of closing the
bore is dispensed with.
In the example shown in Figs. 3 and 4, the mouthpiece, which is provided with a
hollow annular projection, is formed with a small hole co laterally in the annular
projection by means of which the outflow of the drops can be regulated, since a little
air can still enter through the mouthpiece with the effect of accelerating the outflow
of the drops when emptying the bottle. By alternately opening and closing this
opening with the finger, the drops can be made to issue at any desired intervals.
This device is particularly suitable for vessels containing liquids that are used only in
small quantities such as, for example, spicing or flavouring liquids which are added
in drops to food (sauces, soups, &c.) and which are preferably to be made to flow out
drop by drop. With the above described device the outflow or flow of drops can
D

page_text: be accurately regulated, and no increased attention is at all necessary, because the
drops flow out but slowly, and a sudden outflow is entirely prevented.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what
I claim is
1. A device for vessels, for the purpose of enabling liquid contained therein to
be let out drop by drop, consisting of a mouthpiece with a relatively narrow bore,
which is inserted into the mouth of the vessel, the arrangement being such that
the entry of air takes place during the flowing out of liquid through the said bore
in the direction opposite to that of the issuing liquid and the mouthpiece having
an annular projection that serves as an abutment with which the mouthpiece can
bear against the mouth of the vessel.
2. A device for vessels, for the purpose of enabling liquid contained therein to
be let out drop by drop, consisting of a mouthpiece with a relatively narrow bore,
which is inserted into the mouth of the vessel and has an annular projection that is
adapted to serve as an abutment and has an internal cavity which communicates
with the bore and in which after the letting out of each drop some liquid can remain
behind and close the bore towards the vessel.
3. A device for vessels, for the purpose of enabling liquid contained therein to be
let out drop by drop, consisting of a mouthpiece with relatively narrow hore inserted
into the mouth of the vessel and baving a hollow annular projection which is adapted
to serve as an abutment and which has a lateral and relatively small opening by
means of which the outflow of drops can be regulated.
4. The improved devices for enabling liquid contained in vessels to be let out
drop by drop constructed as hereinbefore described with reference respectively to
and shown in Fig. 1; in Fig. 2; and Figs. 3 and 4 of the accompanying
drawings.
F. WISE HOWORTH,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.