IMPROVEMENTS IN APPARATUS FOR DISCHARGING REGULATED QUANTITIES OF LIQUID FROM BOTTLES AND SIMILAR RECEPTACLES, ALSO APPLICABLE FOR CHARGING THE SAID BOTTLES WITH LIQUID
Year: 1877

page_text: LETTERS PATENT to Gerard Wenzeslaus von Nawrocki, of the Firm of J. Brandt
and G. W. von Nawrocki, Civil Engineers and Patent Agents, of No. 2, Koch
Strasse, Berlin, in the German Empire, for the Invention of "IMPROVEMENTS
IN APPARATUS FOR DISCHARGING REGULATED QUANTITIES OF LIQUID FROM
BOTTLES AND SIMILAR RECEPTACLES, ALSO APPLICABLE FOR CHARGING THE
SAID BOTTLES WITH LIQUID." A communication by Dr. Johann Andreas
Gerhard Müller, of Lohne, Oldenburg, in the German Empire.
PROVISIONAL SPECIFICATION left by the said Gerard Wenzeslaus von
Nawrocki at the Office of the Commissioners of Patents on the 5th November
1877.
GERARD WENZESLAUS VON NAWROCKI, of the Firm of J. Brandt and G. W. von
Nawrocki, Civil Engineers and Patent Agents, of No. 2, Koch Strasse, Berlin, in
the German Empire. "IMPROVEMENTS IN APPARATUS FOR DISCHARGING REGU-
LATED QUANTITIES OF LIQUID FROM BOTTLES AND SIMILAR RECEPTACLES, ALSO
APPLICABLE FOR CHARGING THE SAID BOTTLES WITH LIQUID." [A communication
by Dr. Johann Andreas Gerhard Müller, of Lohne, Oldenburg, in the German
Empire.]
According to the present Invention, the mouth of a bottle or similar receptacle
containing liquid is closed by a stopper having an enlarged cup-shaped outer end,
on to which is secured in an air-tight manner a hemispherical or cup-shaped cap
of elastic or flexible material, such as caoutchouc, so as to form with the cup of the
stopper a hollow sphere.
A passage extends through the stopper so as to establish a communication
between the interior of the sphere and that of the bottle, and a small tube extends
from near the bottom of the bottle into the stopper and out through the side thereof,

page_text: terminating in a spout. At the top of the flexible cap is a small hole, by preference
fitted with a small trumpet-mouthed tube.
Assuming the bottle to be filled with liquid and the flexible cap to be distended,
then by placing the thumb on the hole thereof and pressing it down into the rigid
cup, the air contained in the sphere will be forced into the bottle from which a
corresponding quantity of liquid will consequently be forced through the tube.
On allowing the flexible cap to distend again, and then repeating the above operation
as often as may be required, any desired quantity of liquid may be discharged from
the bottle.
When emptied, the bottle may be filled again without removing the stopper by
inserting the spout of the tube into the liquid with which the bottle is to be
charged, and after collapsing the flexible cap so as to discharge the air from the
sphere, distending it again while keeping its hole closed, whereby a corresponding
quantity of liquid will be drawn in through the tube..
According to another modification of the apparatus suitable for inkstands, instead
of the before-described tube fixed in the stopper, a tube is passed air-tight through
the hole in the top of the flexible cap, and screws through the stopper, extending
down some distance into the inkstand, the outer end of the tube being enlarged
to a funnel or cup shape.
On screwing the tube down through the stopper, it effects the depression of the
flexible cap, whereby air is forced from the latter down through the side passages
in the stopper into the inkstand, thus forcing a corresponding quantity of ink up
the tube into the funnel or cup thereof, whence if can be taken by the pen.
When done with, the ink is made to descend again by screwing the tube upwards
so as to distend the cap again.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Gerard Wenzeslaus von Nawrocki in the Great Seal Patent Office on
the 3rd May 1878.
GERARD WENZESLAUS VON NAWROCKI, of the Firm of J. Brandt and G. W. von
Nawrocki, Civil Engineers and Patent Agents, of No. 2, Koch Strasse, Berlin, in
the German Empire. "IMPROVEMENTS IN APPARATUS FOR DISCHARGING REGU-
LATED QUANTITIES OF LIQUID FROM BOTTLES AND SIMILAR RECEPTACLES, ALSO
APPLICABLE FOR CHARGING THE SAID BOTTLES WITH LIQUID." A communication
by Dr. Johann Andreas Gerhard Müller, of Lohne, Oldenburg, in the German
Empire.
According to the present Invention, the mouth of a bottle or similar receptacle
containing liquid is closed by a stopper having an enlarged cup-shaped outer end,
on to which is secured, in an air-tight manner, a hemispherical or cup-shaped cap of
elastic or flexible material, such as caoutchouc, so as to form with the cup of the
stopper a hollow sphere.
:
A passage extends through the stopper so as to establish a communication
between the interior of the sphere and that of the bottle, and a small tube extends
from near the bottom of the bottle into the stopper and out through the side thereof,
terminating in a spout. At the top of the flexible cap is a small hole, by preference,
fitted with a small trumpet-mouthed tube.
Assuming the bottle to be filled with liquid and the flexible cap to be distended,
then by placing the thumb on the hole thereof and pressing it down into the rigid
cup, the air contained in the sphere will be forced into the bottle, from which a
corresponding quantity of liquid will consequently be forced through the tube.
On allowing the flexible cap to distend again, and then repeating the above operation
as often as may be required, any desired quantity of liquid may be discharged from
the bottle.
When emptied, the bottle may be filled again without removing the stopper by.
inserting the spout of the tube into the liquid with which the bottle is to be
charged, and after collapsing the flexible cap so as to discharge the air from the
sphere, distending it again while keeping its hole closed, whereby a corresponding
quantity of liquid will be drawn in through the tube.
According to another modification of the apparatus, suitable for inkstands, instead
of the before-described tube fixed in the stopper, a tube is passed air-tight through
the hole in the top of the flexible cap, and screws through the stopper extending
down some distance into the inkstand, the outer end of the tube being enlarged to
a funnel or cup shape.
On screwing the tube down through the stopper, it effects the depression of the.
flexible cap, whereby air is forced from the latter down through the side passages
in the stopper into the inkstand, thus forcing a corresponding quantity of ink up
the tube into the funnel or cup thereof, whence it can be taken by the pen.
When done with, the ink is made to descend again by screwing the tube upwards
so as to distend the cap again.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a vertical section, and Figure 2 a sectional plan on the line A, B, of a
bottle provided with apparatus according to this Invention.
a is a stopper which may be of wood or other suitable material, hollowed out
hemispherically on the upper side, and provided with a ring b of glass, ground or
fitted to the neck of the bottle. A pipe C passed through the stopper a extends
down nearly to the bottom of the bottle, and a hole d is pierced through the stopper.
A flexible membrane e, which may be half of a hollow ball of caoutchouc, is secured
to the upper lip of the stopper, and has fastened on it a tubular button f. The
bottle being charged with liquid, on closing the passage off with the finger and

page_text: pressing down the membrane, the pressure of the air within the ball is increased, and
this pressure being transmitted by the passage d to the liquid below, forces out a
portion of it by the pipe c. On removing the finger from f, the ball expands again,
receiving a fresh supply of air through the passage of f.
A modified form of the apparatus is shewn in the vertical section, Figure III., and
sectional plan on C, D, at Figure IV., an enlarged section of the upper part of the ball
being shewn at Figure VII. In this case the discharge pipe g is made in a separate
piece, a nearly entire flexible ball is employed, and instead of the tubular button f,
described above, a button k is fixed over a piece of flexible tube h having through.
its under side a small hole communicating with the interior of the ball.
On pressing down the button k this hole is closed, and the action is similar to
that already described.
In the modified arrangement, shewn by the vertical section, Figure V., and plan,
Figure VI., the liquid is raised to the funnel by compressing the flexible ball laterally,
and when the pressure is relieved, air descends the pipe and rises through the liquid
to fill the ball as it expands again.
Figure VIII. is a section, and Figure IX. a plan of the apparatus, in a modified form,
adapted to an ink bottle.. In this case the stopper i has through it a screwed holem,
and one or more air passages n.
The flexible half ball o is secured to the stopper
and has a small funnel mouth to which is ground or fitted, in an air-tight manner,
the neck of the ink funnel r. From this funnel a tube descends, having on it a
screw thread & fitting the screwed hole in the stopper.
By turning the funnel r so that its tubular stem screws down in the hole m, the
membrane o is pressed downwards and the ink is caused to ascend to the desired
height in the funnel 7. By turning in the opposite direction, the membrane o is
expanded and the ink descends.
A bottle fitted as described with reference to Figure I. may be filled without
removing the stopper, for which purpose the mouth of the discharged pipe c being
immersed in the liquid, and the membrane e being collapsed, it is allowed to expand
while the passage of f is kept closed, and thus liquid is drawn into the bottle by the
pipe c.
Having thus described the nature of the said Invention, and in what manner the
same is to be performed, as communicated to me by my foreign correspondent, I
claim,―
First. The use for discharging regulated quantities of liquid from a bottle or
similar receptacle, of a stopper having a collapsible air cavity and passage, con-
structed and operating substantially as herein described.
Second. The use, in combination with an ink bottle, of the modified form of
apparatus herein described with reference to Figures VIII. and IX. of the accom-
panying Drawings.
In witness whereof, I, the said Gerard Wenzeslaus von Nawrocki, have here-
unto set my hand and seal, this Thirtieth day of April, in the year of our
Lord One thousand eight hundred and seventy-eight.
.