Improvements in Devices for Dispensing Doses of Medicine in Drops.
Year: 1891

page_text: Date of Application, 10th Jan., 1891
Complete Specification Left, 9th Apr., 1891-Accepted, 9th May, 1891
PROVISIONAL SPECIFICATION.
[Communicated from abroad by FREDERICK B. SPOONER, of No. 456, Greene
Avenue, Brooklyn, County of Kings, and State of New York, United States
of America, Accountant.]
Improvements in Devices for Dispensing Doses of Medicine
in Drops.
I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake, & Co., Patent Agents,
45 Southampton Buildings, in the County of Middlesex, do hereby declare the
nature of this invention to be as follows:-
My invention consists in a medicine dropper or device for dispensing doses of
medicine in drops comprising a reservoir for holding the liquid having an orifice at
the lower portion for the escape of the liquid in drops and an orifice at the upper
portion for influx of air, and a taper point at the top for the purpose of penetrating
the cork of a bottle all as hereinafter described.
My improved device comprises a tubular portion or reservoir for containing the
liquid the said reservoir being provided at its bottom with a small orifice and at the
upper end thereof with a similar orifice. At the upper end of the device is formed
an extension or tapered point, which is preferably made of solid glass adapted to be
pressed into the lower portion of the cork of a bottle or other vessel.
The operation of the device is as follows:-
The taper end is first inserted into the lower portion of the cork, which is then
placed in the neck of a bottle. The pressure of the air upon the surface of the
liquid in the bottle will force the liquid up through the lower orifice into the
reservoir the air, which is displaced by the liquid escaping through the orifice in
the upper portion of the said reservoir. In order to measure out the liquid by
drops, the cork is pulled out and held either in a vertical or slightly inclined
position, when the liquid will commence to escape through the lower orifice drop by
drop, the air entering at the orifice thereby giving the necessary pressure to so
eject the liquid from the device. The device is then returned to the bottle where it
will refill itself as above stated.
I am aware that a device has heretofore been made which was provided with an
enlarged bulb-shaped upper end to be inserted in a recess in the cork.
In the use
of this device however it was first necessary to cut out a recess in the cork for its
reception; and the bulb, when in place therein, robbed the cork of much of the
elasticity necessary to its efficiency as a stopper as these devices are used exclusively
with medicines which are handled in small quantities and therefore in small bottles
with correspondingly small corks. Unless great care was taken whenever the cork
was inserted, the bulb would be crushed, and the fragments of glass and body of the
device would drop into the medicine.
I am also aware that a glass measuring tube has been made having a bulb like
enlargement at its upper end with a slender neck between the bulb and the body of
the tube. In applying this to a cork it was necessary to make an undercut recess
in the cork, and even then in forcing the bulb through the contracted entrance to
the recess there was very great liability to breakage at the slender neck which
rendered the device weakest at the point where strength was most required, and
this same liability to destruction constantly attended the after use of the device, as
is apparent. If attempt were made to insert the bulb without first making a recess
for it, breakage was almost certain to ensue. From both these devices it will be
observed the device which forms the subject of my invention differs essentially.
From the body of the tube the upper end is extended in a continuous even taper to
a sharp point. The result is that this point and the tapering end may be readily

page_text: and easily pushed into the cork without cutting any recess for it, and without any
danger of breaking in the act of insertion or in after use because the parts are
strongest where strength is most required while the presence of this slight tapering
end in the cork does not materially decrease its elasticity.
The device may be removed from one cork and applied to another with equal
safety and facility.
lמו תוירת
1001
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Devices for Dispensing Doses of Medicine
in Drops.
I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co., Patent
Agents, 45 Southampton Buildings, in the County of Middlesex, 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 :-
My invention consists in a medicine dropper or device for dispensing doses of
medicine in drops comprising a reservoir for holding the liquid having an orifice at
the lower portion for the escape of the liquid in drops and an orifice at the upper
portion for influx of air, and a taper point at the top for the purpose of penetrating
the cork of a bottle all as hereinafter described.
In the accompanying drawing
Figure 1, is a perspective view of the device.
Figure 2, is a vertical central section taken through a bottle having one of the
devices attached to its cork.
My improved device comprises a tubular portion or reservoir a for containing the
liquid the said reservoir being provided at its bottom b with a small orifice c and at
the upper end thereof with a similar orifice d. At the upper end of the device is
formed an extension or tapered point e which is preferably made of solid glass
adapted to be pressed into the lower portion of the cork of a bottle or other vessel
as shown in Figure 2.
The operation of the device is as follows:-
The taper end e is first inserted into the lower portion of the cork, as shown at f
Figure 2 which is then placed in the neck of a bottle. The pressure of the air
upon the surface of the liquid in the bottle will force the liquid up through the lower
orifice c into the reservoir a; the air, which is displaced by the liquid escaping
through the orifice d in the upper portion of the said reservoir. In order to
measure out the liquid by drops, the cork f, is pulled out and held either in a
vertical or slightly inclined position, when the liquid will commence to escape
through the lower orifice c drop by drop, the air entering at the orifice d, thereby
giving the necessary pressure to so eject the liquid from the device. The device
is then returned to the bottle as shown in Figure 2, where it will refill itself as
above stated.
I am aware that a device has heretofore been made, which was provided with an
enlarged bulb-shaped upper end to be inserted in a recess in the cork. In the use
of this device however it was first necessary to cut out a recess in the cork for its
reception; and the bulb, when in place therein, robbed the cork of much of its
elasticity necessary to its efficiency as a stopper, as these devices are used exclusively
with medicines which are handled in small quantities and therefore in small bottles
with correspondingly small corks. Unless great care was taken whenever the cork
was inserted, the bulb would be crushed, and the fragments of glass and body of
the device would drop into the medicine.
I am also aware that a glass measuring tube has been made having a bulb-like

page_text: enlargement at its upper end with a slender neck between the bulb and the body of
the tube. In applying this to a cork it was necessary to make an undercut recess
in the cork, and even then in forcing the bulb through the contracted entrance to
the recess there was very great liability to breakage at the slender neck which
rendered the device weakest at the point where strength was most required; and
this same liability to destruction constantly attending the after use of the device,
as is apparent. If attempt were made to insert the bulb without first making a
recess for it, breakage was almost certain to ensue. From both these devices it
will be observed the device which forms the subject of my invention differs
essentially. From the body of the tube the upper end is extended in a con-
tinuous even taper to a sharp point. The result is that this point and the tapering
end may be readily and easily pushed into the cork without cutting any recess for
it, and without any danger of breaking in the act of insertion or in after use,
because the parts are strongest where strength is most required while the presence
of this slight tapering end in the cork does not materially decrease its elasticity.
The device may be removed from one cork and applied to another with equal
safety and facility.
Having now particularly described and ascertained 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 declare that what I claim is :-
First. A device, for dispensing doses of medicine in drops, consisting of a
reservoir having an orifice in its lower end, an orifice in its upper portion, and
its upper end being continuously tapered to a point by means of which the
dropper can be driven into and be attached to a cork, substantially as described.
Second. A device for dispensing medicine in drops consisting of the reservoir a, for
receiving the liquid, having the exit orifice c, and air inlet orifice d, and provided
with the solid continuously tapering point extension e, enabling it to be driven into
the lower portion of a cork, substantially as described.
Dated this 9th day of April 1891.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.