An Improvement in Cork-stoppered Bottles.
Year: 1890

page_text: Date of Application, 22 :d July, 1390
Complete Specification Left, 17th Apr., 1891-Accepted, 30th May. 1891
PROVISIONAL
SPECIFICATION.
An Improvement in Cork-stoppered Bottles.
I, AUGUSTUS BARCLAY CALDER, of 14 Queen's Crescent, Glasgow, N.B.,
Bachelor of Medicine, do hereby declare the nature of this invention to be as
follows:
The object of this invention is to produce a cork-stoppered bottle or vessel
from which the liquid contents can be drawn off drop by drop with perfect accuracy
and case as required.
According to this invention I provide the neck of an ordinary bottle with a hole,
slit, or aperture. This hole, slit, or aperture may have a rim or tube or spout, and
is made of such size as to allow the fluid contents of the bottle to escape drop by
drop from it when the bottle is tilted towards that side. The cork is provided with
a longitudinal slot or groove extending from or near the bottom to a convenient
distance up towards the top of the cork to allow of the access of air when the
bottle is being used. In place of this slot or groove in the cork, the neck of the
bottle may be provided with a slot or groove or both the cork and the neck of
the bottle may be provided with a slot or groove. Further the access of air may
be provided for by simply placing a small hole or holes in the neck of upper part of
the bottle.
The cork of the bottle should be long enough when in position to cover
the opening or openings in the neck to prevent any evaporation taking place.
To draw off the liquid contents drop by drop, the cork is pulled up so as
to uncover the aperture or apertures in the neck of the bottle. When the bottle is
tilted a drop will fall from the hole, slit, or aperture and the air will pass in to take
its place through the longitudinal slot or groove in the cork, or by the groove or
slot in the neck of the bottle or by the hole in the neck or upper part of the bottle
according to the particular pattern in use. This action will continue, the liquid
passing off drop by drop and the requisite number can be obtained with ease, and
accuracy. This is a matter of great importance, especially when dealing with
strong drugs or poisonous liquids, when accuracy in the number and size of the
drops obtained is essential. The size of the drop can be regulated, if desired, so
that equal to a minim or larger or smaller quantity can be obtained according to
the size of the aperture out of which the drop comes.
Deted this 22nd day of July 1890
CASTLE SMITH,
"Invention" Office, 54, Fleet Street, London, Agent for the Applicant.
COMPLETE
SPECIFICATION.
An Improvement in Cork-stoppered Bottles.
I, AUGUSTUS BARCLAY CALDER, of 14 Queen's Crescent, Glasgow, Lanark-
shire, Bachelor of Medicine, do hereby declare the nature of my invention, and in
what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement in writing, that is to say :-
The object of this invention is to produce a cork stoppered bottle or vessel from
which the liquid contents can be drawn off drop by drop with perfect accuracy and
ease as required.
And in order that my said improvements and the manner of performing or
carrying them into effect or practice may be properly understood, I have hereunto

page_text: appended an explanatory sheet of drawings in which Figure 1 is a sectional
elevation of a bottle A as formed in accordance with my improvements and shown
in vertical position with an ordinary cork stopper a³ fitted in it. And Figure 2 is
a corresponding view with the bottle A. placed horizontally, and the cork stopper a³
sufficiently withdrawn to permit the liquid contents to drop out through the
projecting dropping tube a.
Referring to these drawings:- According to my improvements I form or provide
the neck A¹ of an ordinary medicine or liquid containing bottle or vial A with a
projecting dropping tube a and of such a size internally as to permit the liquid
contents of the bottle to escape drop by drop from it when the bottle A is tilted to
a horizontal or nearly horizontal position as shown in Figure 2. The neck A', of
the bottle A, is also formed with a longitudinal groove a¹ extending from the top
to a level with or a little below the tube a for the inlet passage of air when the
dropping action is proceeding.
Instead of providing the neck A¹ of the bottle A with a ground internal surface
to fit a glass stopper as with bottles heretofore, under my improvements this is not
necessary as I form the internal surface of the neck A smooth and fit within it an
ordinary cork stopper a² which is shown in its stoppered position in Figure 1, with
the inner end of the cork a below the tube a, and air groove a¹ so that no liquid
can pass out from the bottle A. But when it is desired to take a number of drops
of liquid from the bottle A, the cork a' is withdrawn to the position shown in
Figure 2, with its lower end above the tube a and the inner extremity of the air
admission groove a¹.
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 :-
A cork stoppered bottle, provided with a projecting dropping tube a and an
internal air admission groove a¹ in its neck, which is formed with a plain or
unground internal surface to receive a cork stopper, substantially as and for
the purpose herein described, in reference to and shown in the accompanying
drawings.
1
l A
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.