Improvements in Bottles to Prevent them being Refilled.
Year: 1897

page_text: Date of Application, 22nd Apr., 1897-Accepted, 12th June, 1897
COMPLETE SPECIFICATION.
Improvements in Bottles to Prevent them being Refilled.
J, JOHN WILLIAM MCDOUGALL, of Napier, in the Colony of New Zealand,
Journalist, 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 has reference to that class of bottles which cannot be refilled after
they have once been filled and emptied, and its purpose is to provide a cheap and
simple bottle which shall meet these requirements. The invention consists in
making a bottle with a body of any ordinary form, and having a neck of special
form and fitted with a stopper which will allow liquid to be withdrawn, but will
frustrate attempts made to pass liquid into the bottle. By the use of this invention
it will be impossible to fraudulently tamper with the contents of the bottle.
The invention is illustrated upon the accompanying drawings whereon,―
Figure is a section of one form of the bottle.
Figure 2 is a cross section of the same on line A-B Figure 1.
Figure 3 is a section of a modification of the bottle.
Figure is a cross section of the same on line C-D Figure 3.
Figure 5 is a section of another modification of the bottle.
Figure 6 is a cross section of the same on line E-F Figure 5.
Figure 7 is a view of the socket.
Figure 8 is a section of another modification of the bottle.
Figure 9 is a plan of the neck of the same.
Figure 10 is a cross section of the same on line G-H Figure 8.
Figure 11 is a section of another modification of the bottle.
Figure 12 is a cross section of line J-K Figure 12.
Similar letters refer to similar parts.
Describing the drawings, (a) is the body of any ordinary shaped bottle having a
neck (b) of special construction. The twisted or tortuous form of the neck shewn
on Figure 1 will effectually prevent the stopper (c) from being tampered with.
Liquid may be withdrawn by tilting the bottle until its neck is downwards when
the stopper (c) will fall, to allow the liquid to pass, but immediately the bottle is
raised the stopper will close upon its seat formed in the neck of the bottle and will
prevent the admission of liquid into the bottle. The stopper is grooved at (c¹) to
form spaces through which the liquid may pass when being withdrawn, or the top
of the stopper may be square in section as shewn on Figures 8, 10, 11 and 12 for a
similar purpose where the square top will rest upon the circular neck and thus
leave spaces for the passage of the liquid. In manufacturing the bottle the stopper
may be placed within its cavity before the neck of the bottle is completed, the
tortuous upper part being afterwards formed, or the bottle may have the upper
part of its neck formed and the stopper may be inserted through the aperture at
the bottom into its cavity, and its seat afterwards formed. The aperture is
provided for the purpose of filling the bottle and is formed by a short neck (d)
Figures 1. and 11 which is closed by a cork (¹) and a body of cement (d2)
composed of ingredients which will harden as they dry sufficiently to be proof
against acid and attempts to remove it from its position. Such a cement may be
made by mixing silicate of soda and powdered glass in such proportions as to
produce a paste having a consistency of thick cream.

page_text: stopper being tampered with, substantially as described with reference to Figures 8,.
9, and 10 on the drawings.
8. A bottle provided with a conical stopper with a square and grooved top to
allow liquid to be withdrawn and having a neck formed into a spiral to prevent the.
stopper being tampered with, and an aperture at the bottom for filling the bottle
and a cork and cement for closing the same, substantially as described with
reference to Figures 8, 9, and 10 on the drawings.
9. A bottle provided with a conical stopper having a square top and an aperture-
for filling the bottle and a cork and cement for closing the stopper, substantially as.
described with reference to Figures 11 and 12 on the drawings.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.