Year: 1881

page_text: I, HENRY BARRETT of Merivale, North Dulwich, in the County of Surrey,
Gentleman seek leave to amend the specification of Letters Patent, No. 5154
of 1881, as shown in red ink in the copy of the original specification hereunto
annexed:-
.
My reasons for making this amendment are as follows: 1, That the claim of
invention as it now stands might be construed in too wide a sense and that it is
desirable to restrict the same.
"
2. That the description of the invention and of the manner in which it is to be
performed may be made more clear and precise.

page_text: LETTERS PATENT to Henry Barrett, of Dacre Street, in the City of
Westminster, Aërated Water Manufacturer, for an Invention of "IMPROVE-
MENTS IN THE MANUFACTURE OF STOPPERS FOR BOTTLES, JARS, AND LIKE
PROVISIONAL SPECIFICATION left by the said Henry Barrett at the Office
of the Commissioners of Patents on the 25th November 1881.
HENRY BARRETT of Dacre Street, in the City of Westminster, Aërated Water
Manufacturer. IMPROVEMENTS IN THE MANUFACTURE OF STOPPERS FOR
"
BOTTLES, JARS AND LIKE VESSELS."
This Invention relates to an improved manufacture of stoppers for bottles, jars
and like vessels and has special reference to the manufacture of what are known
as screw stoppers when such stoppers are made from a plastic material such as
lionite which is liable to be acted on by heat or by the liquid to be bottled.
In manufacturing such stoppers according to the present Invention I take a tube
of vulcanite, xylonite or like material such tube being of suitable length and shape
to cover the whole or part of the stopper as may be required.
The said tube is placed in the mould of the required shape and the mould being
heated plastic material such as lionite is then pressed or forced into the tube so as
to cause the tube to take the shape. of the mould and the goods are then finished
in any suitable manner.
A wire is sometimes inserted in the stopper to strengthen it.
By this mode of manufacture I obtain a stopper having all the advantages of
stoppers made wholly from vulcanite or like material, but at a much less cost
Although I have described my Invention as applied to the manufacture of screw
stoppers it will be obvious that it is applicable to other descriptions of stoppers,
and instead of employing a plastic material as hereinbefore described non-plastic
material or other hard material such as glass may be employed, in which case the
outer shell of vulcanite or like material would have to be previously moulded of
the external form required to be given to the stopper, or to that part of it which
is to be protected by the vulcanite or other shell.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Henry Barrett in the Great Seal Patent Office on the 24th May
1882.
HENRY BARRETT of Dacre Street in the City of Westminster, Aërated Water
Manufacturer. "IMPROVEMENTS IN THE MANUFACTURE OF STOPPERS FOR
BOTTLES, JARS, AND LIKE VESSELS."
This Invention relates to an improved manufacture of stoppers for bottles, jars
and like vessels such as are hereinafter described and has special reference to the
manufacture of what are known as screw stoppers when such stoppers are made
from a plastic material such as lionite which is liable to be acted on by heat or by
the liquid to be bottled..
.
In, manufacturing such stoppers according to the present Invention I take a
tube of vulcanite, xylonite, celluloid or like material such tube being of suitable
length and shape to cover the whole or part of the stopper as may be required.
The said tube is placed in the mould of the required shape and the mould being
heated plastic material such as lionite is then pressed or forced into the tube so
as to cause the tube to take the shape of the mould and the goods are then finished
in any suitable manner.
A wire is sometimes inserted in the stopper to strengthen it. By this mode
of manufacture I obtain a stopper having the external part wholly or partly coated
with vulcanite and possessing all the advantages of stoppers made wholly from
vulcanite or like material, but at a much less cost.
Although I have described my Invention as applied to the manufacture of sorew
stoppers it will be obvious that it is applicable to other descriptions of stoppers,
and Instead of employing a plastic material as herein before described for the core
or centre part of the stoppers, non-plastic material or other hard material such as
glass may be employed in which case the outer shell of vulcanite or like material
when used as herein described would have to be previously moulded of the external
form required to be given to the stopper, or to that part of it which is to be
protected by the vulcanite or other shell, or the core or body may be covered or
coated with the material that forms or is converted into vulcanite by the ordinary
vulcanizing process.
In order to enable my Invention to be readily understood I will proceed to
describe the same by reference to the several Figures of the accompanying
Drawing which shew various stoppers manufactured according to my Invention.
Figure 1, is a section and Figure 2, an elevation of a screw stopper made of
lionite partly covered with vulcanite, xylonite, celluloid or like material.
In manufacturing such stoppers I take a piece of tubing of vulcanite, xylonite,
celluloid or like material of a length sufficient to cover the screw portion of the
stopper as shewn at a, and I place the said piece of tubing (previously heated to
render it somewhat plastic).in a heated mould suitably constructed to give the
desired form to the stopper. Suitable plastic material such as lionite 6, in a
heated state is then pressed or forced into the mould and the tubing will thereby
be caused to take the shape of the mould. In cooling, the shell a, contracts so as
*to become securely attached to the body b, of the stopper and on the stopper being

page_text: withdrawn (by being unscrewed) from the mould it may be finished in any suitable
manner.
Figure 3, is a section of a stopper similar to that shewn in Figures 1, and 2, but
with the addition of a piece of wire c, which is introduced into the mould before
the plastic material is forced therein, such wire c, serving to strengthen the stopper.
Figure 4, represents a section of a stopper similar to that shewn in Figures 1,
and 2, with the exception that the shell or casing a, of vulcánite or like material
covers the whole length of the body of the stopper the upper edge of the tubing
forming the shell a, extending into the head d, of the stopper as shown.
I will now describe my improvements as applied to glass stoppers reference being
had to Figures 5, 6, 7 and 8.
In carrying out this part of my Invention I take a tube e, of vulcanite, xylonite,
celluloid or like material and subject one end of the same to heat so as to render
it somewhat plastic and I then introduce the said softened part of the tube into a
mould or die such as that shewn at f, Figure 5, constructed to form the threaded
part of the stopper. While the tube is in a plastic state in the die f, I screw
therein a stopper such as that shewn at g, Figure 6, made of glass or like heat
resisting material, the threaded part of the glass stopper being constructed of such
a size that it will force the plastic vulcanite tubing to take the shape of the die or
mould f. As the tubing cools it contracts tightly on the glass stopper which, with
the casing attached is then screwed out of the mould as shown in Figure 7, and
the tube e, is cut off to the required length and the stopper trimmed in any suitable
manner. Figure 8 is an elevation of the complete stopper.:
Or I sometimes take a tube of vulcanite and having softened it by heat I then
screw therein a stopper of glass or like heat resisting material and after the
vulcanite has cooled and become shrunk or contracted on the body of the stopper
it is enclosed in a contracting mould which will impart a finish to it.
By this means I obtain a glass stopper with an outer casing or covering of
vulcanite or like material suitable to be used for closing a glass screw necked.
bottle as only the vulcanite covering of the stopper will come into contact with
the glass of the bottle and the contents of the bottle and I thus obviate the
objection attending the use of glass for stoppers, as when made wholly of such
material the stoppers will not work smoothly in glass bottles.
Another method of manufacturing combined glass (or other heat resisting
material) and vulcanite stoppers according to my Invention consists in coating
or partly coating the glass body of the stopper with rubber dough ready to be
converted into vulcanite and I then subject the same to the treatment usually
termed vulcanizing treatment as usually employed in the manufacture of
vulcanite..
When it is required to manufacture a stopper of glass or like material with a
thread of vulcanite as shewn in section and elevation at Figures 9 and 10, I cast
or mould the body or stem h, of the stopper with a spiral groove or female thread;
in this female thread I then place a cylindrical thread i, of rubber dough each end
of the thread being inserted in a hole in the body of the stopper and I then subject
the same to the treatment usually employed in manufacturing vulcanite and thus
obtain a stopper with a thread of vulcanite similar to that shewn in Figures 9
and 10.
For stoppers where lightness is of importance I use the vulcanite shell without
combining with it a body or core by making the stopper in the following manner.
I mould the shell of vulcanite, xylonite, celluloid or like material as shewn at j,
Figure 11, and fit into the head of the shell a disc k, of suitable material and
I thus obtain a light convenient hollow stopper possessing the advantages of a
stopper made of solid vulcanite or like material.
Having thus described the nature of my said Invention and the best means
with which I am acquainted with for carrying the same into effect I would have
it understood that I do not confine myself to the precise details herein laid down

page_text: as it is obvious that the same may be varied without departing from the peculiar
character of my Invention but what I claim is :-
Firstly. The manufacture of screw stoppers for bottles, jars and like vessels by
pressing or forcing suitable plastic material such as lionite in a heated state into a
mould or die into which a tube of heated vulcanite, xylonite, celluloid or like
material has been previously placed substantially as hereinbefore described and
represented in Figures 1, 2, 3 and 4 of the accompanying Drawing. ⚫
Secondly. The manufacture as herein described of screw stoppers for bottles, jars
and like vessels by screwing a glass screw stopper-body into a softened tube of
vulcanite, xylonite, celluloid or like material, placed in a suitable die or mould
substantially as herein before described and represented in Figures 5, 6, 7 and 8 of
the accompanying Drawing.
0
Thirdly. The manufacture as herein described of compound sorew stoppers formed
of combined glass (or like heat resisting material) and vulcanite, by first covering
or partly covering the glass body of the stopper with a shell or coating of rubber
dough and then subjecting the same to the treatment usual in the manufacture
of vulcanite, or by inserting in a spiral groove formed in the glass or other hard
core a thread of rubber dough, substantially as hereinbefore described.
Fourthly. The manufacture and use of the various compound screw stoppers. as
herein before described and represented respectively in Figures 1, 2, 3, 4, 8, 9, 10
and 11, of the accompanying Drawing.
In witness whereof I the said Henry Barrett have hereto set my hand and
seal, this Twenty third day of May in the year of our Lord One thousand
eight hundred and eighty two.
Witness
G. F. REDFERN
Patent Agent
4 South Street Finsbury.
H. BARRETT. (LS)

page_text: LETTERS PATENT to Henry Barrett, of Dacre Street, in the City of
Westminster, Aërated Water Manufacturer, for an Invention of "IMPROVE-
MENTS IN THE MANUFACTURE OF STOPPERS FOR BOTTLES, JARS, AND LIKE
VESSELS."
PROVISIONAL SPECIFICATION left by the said Henry Barrett at the Office
of the Commissioners of Patents on the 25th November 1881.
HENRY BARRETT, of Dacre Street, in the City of Westminster, Aërated Water
Manufacturer. "IMPROVEMENTS IN THE MANUFACTURE OF STOPPERS FOR
BOTTLES, JARS, AND LIKE VESSELS."
This Invention relates to an improved manufacture of stoppers for bottles, jars,
and like vessels, and has special reference to the manufacture of what are known
as screw stoppers when such stoppers are made from a plastic material such as
lionite, which is liable to be acted on by heat or by the liquid to be bottled.
In manufacturing such stoppers according to the present Invention I take a tube
of vulcanite, xylonite, or like material, such tube being of suitable length and shape
to cover the whole or part of the stopper, as may be required.
The said tube is placed in the mould of the required shape, and the mould being
heated, plastic material, such as lionite, is then pressed or forced into the tube so as
to cause the tube to take the shape of the mould, and the goods are then finished
in any suitable manner.
A wire is sometimes inserted in the stopper to strengthen it.
By this mode of manufacture I obtain a stopper having all the advantages of.
stoppers made wholly from vulcanite or like material, but at a much less cost.
Although I have described my Invention as applied to the manufacture of screw
stoppers it will be obvious that it is applicable to other descriptions of stoppers,
and instead of employing a plastic material, as herein before described, non-plastic
material or other hard material, such as glass, may be employed, in which case the
outer shell of vulcanite or like material would have to be previously moulded of
the external form required to be given to the stopper, or to that part of it which
is to be protected by the vulcanite or other shell.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Henry Barrett in the Great Seal Patent Office on the 24th May
1882.
HENRY BARRETT, of Dacre Street, in the City of Westminster, Aërated Water
Manufacturer. " IMPROVEMENTS IN THE MANUFACTURE OF STOPPERS FOR
BOTTLES, JARS, AND LIKE VESSELS."
This Invention relates to an improved manufacture of stoppers for bottles, jars,
and like vessels, and has special reference to the manufacture of what are known
as screw stoppers, when such stoppers are made from a plastic material, such as
lionite, which is liable to be acted on by heat or by the liquid to be bottled.
In manufacturing such stoppers according to the present Invention I take a
tube of vulcanite, xylonite, celluloid, or like material, such tube being of suitable
length and shape to cover the whole or part of the stopper, as may be required.
The said tube is placed in the mould of the required shape, and the mould being
heated plastic material, such as lionite, is then pressed or forced into the tube so
as to cause the tube to take the shape of the mould, and the goods are then finished
in any suitable manner.
A wire is sometimes inserted in the stopper to strengthen it. By this mode
of manufacture I obtain a stopper having the external part wholly or partly coated
with vulcanite, and possessing all the advantages of stoppers made wholly from
vulcanite or like material, but at a much less cost.
Although I have described my Invention as applied to the manufacture of screw
stoppers it will be obvious that it is applicable to other descriptions of stoppers,
and instead of employing a plastic material, as hereinbefore described, for the core
or centre part of the stoppers, non-plastic material or other hard material, such as
glass, may be employed, in which case the outer shell of vulcanite, or like material,
would have to be previously moulded of the external form required to be given
to the stopper, or to that part of it which is to be protected by the vulcanite or
other shell, or the core or body may be covered or coated with the material that
forms or is converted into vulcanite by the ordinary vulcanizing process.
In order to enable my Invention to be readily understood I will proceed to
describe the same by reference to the several Figures of the accompanying
Drawing, which shew various stoppers manufactured according to my Invention.
Figure 1 is a section, and Figure 2 an elevation of a screw stopper made of
lionite, partly covered with vulcanite, xylonite, celluloid, or like material.
In manufacturing such stoppers I take a piece of tubing of vulcanite, xylonite,
celluloid, or like material, of a length sufficient to cover the screw portion of the
stopper, as shewn at a, and I place the said piece of tubing (previously heated to
render it somewhat plastic) in a heated mould suitably constructed to give the
desired form to the stopper. Suitable plastic material, such as lionite b, in a
beated state is then pressed or forced into the mould, and the tubing will thereby
be caused to take the shape of the mould. In cooling the shell a contracts so as
to become securely attached to the body b of the stopper, and on the stopper being
withdrawn (by being unscrewed) from the mould it may be finished in any suitable
manner.
Figure 3 is a section of a stopper similar to that shewn in Figures 1 and 2, but
with the addition of a piece of wire c which is introduced into the mould before
the plastic material is forced therein, such wire c serving to strengthen the
stopper.
Figure 4 represents a section of a stopper similar to that shewn in Figures 1
and 2, with the exception that the shell or casing a of vulcanite or like material

page_text: covers the whole length of the body of the stopper, the upper edge of the tubing
forming the shell a extending into the head d of the stopper as shewn.
I will now describe my improvements as applied to glass stoppers, reference being
had to Figures 5, 6, 7, and 8.
In carrying out this part of my Invention I take a tube e of vulcanite, xylonite,
celluloid, or like material, and subject one end of the same to heat so as to render
it somewhat plastic, and I then introduce the said softened part of the tube into a
mould or die such as that shewn at f, Figure 5, constructed to form the threaded
part of the stopper. While the tube is in a plastic state in the die f, I screw
therein a stopper such as that shewn at g, Figure 6, made of glass or like heat
resisting material, the threaded part of the glass stopper being constructed of such
a size that it will force the plastic vulcanite tubing to take the shape of the die. or
mould. As the tubing cools it contracts tightly on the glass stopper, which, with
the casing attached, is then screwed out of the mould, as shewn in Figure 7, and
the tube e is cut off to the required length and the stopper trimmed in any suitable
manner; Figure 8 is an elevation of the complete stopper.
Or I sometimes take a tube of vulcanite, and having softened it by heat I then
screw therein a stopper of glass or like heat resisting material, and after the
vulcanite has cooled and become shrunk or contracted on the body of the stopper
it is enclosed in a contracting mould which will impart a finish to it.
By this means I obtain a glass stopper with an outer casing or covering of
vulcanite, or like material, suitable to be used for closing a glass screw necked
bottle, as only the vulcanite covering of the stopper will come into contact with
the glass of the bottle and the contents of the bottle, and I thus obviate the
objection attending the use of glass for stoppers, as when made wholly of such
material the stoppers will not work smoothly in glass bottles.
Another method of manufacturing combined glass (or other heat resisting
material), and vulcanite stoppers, according to my Invention, consists in coating
or partly coating the glass body of the stopper with rubber dough ready to be
converted into vulcanite, and I then subject the same to the treatment usually
termed vulcanizing treatmen+ usually employed in the manufacture of
vulcanite.
72
When it is required to manufacture a stopper of glass, or like material, with a
thread of vulcanite, as shewn in section and elevation at Figures 9 and 10, I cast
or mould the body or stem h of the stopper with a spiral groove or female thread;
in this female thread I then place a cylindrical thread i of rubber dough, and I
then subject the same to the treatment usually employed in manufacturing
vulcanite, and thus obtain a stopper with a thread of vulcanite similar to that
shewn in Figures 9 and 10.
For stoppers where lightness is of importance I use the vulcanite shell without
combining with it a body or core by making the stopper in the following manner :-
I mould the shell of vulcanite, xylonite, celluloid, or like material, as shewn at j.
Figure 11, and fit into the head of the shell a disc k of suitable material, and I
thus obtain a light convenient hollow stopper possessing the advantages of a
stopper made of solid vulcanite or like material.
Having thus described the nature of my said Invention, and the best means
with which I am acquainted with for carrying the same into effect, I would have
it understood that I do not confine myself to the precise details herein laid down,
as it is obvious that the same may be varied without departing from the peculiar
character of my Invention, but what I claim is,―
Firstly. The manufacture of stoppers for bottles, jars, and like vessels, by
pressing or forcing suitable plastic material, such as lionite in a heated state, into a
mould or die, into which a tube of heated vulcanite, xylonite, celluloid, or like
material, has been previously placed, substantially as herein before described and
represented in Figures 1, 2, 3, and 4 of the accompanying Drawing.
Secondly. The manufacture, as herein described, of stoppers for hottles, jars, and
like vessels, by screwing a glass screw stopper-body into a softened tube of

page_text: vulcanite, xylonite, celluloid, or like material, placed in a suitable die or mould,
substantially as hereinbefore described and represented in Figures 5, 6, 7, and 8 of
the accompanying Drawing.
Thirdly. The manufacture, as herein described, of compound stoppers formed of
combined glass (or like heat resisting material) and vulcanite, by first covering, or
partly covering, the glass body of the stopper with a shell or coating of rubber
dough, and then subjecting the same to the treatment usual in the manufacture
of vulcanite, or by inserting in a spiral groove formed in the glass or other hard
core a thread of rubber dough, substantially as hereinbefore described.
Fourthly. The manufacture and use of the various compound stoppers, as herein-
before described and represented respectively in Figures 1, 2, 3, 4, 8, 9, 10, and 11
of the accompanying Drawing.
In witness whereof, I, the said Henry Barrett, have hereto set my hand and
seal, this Twenty third day of May, in the year of our Lord One thousand
eight hundred and eighty two.
Witness,
G. F. REDFERN,
Patent Agent,
4, South Street,
Finsbury.
H. BARRETT. (LS)