Improvements in and in the Manufacture of India-rubber Tobacco Pouches and Receptacles of a similar nature.
Year: 1897

page_text: Date of Application, 1st July, 1897
Complete Specification Left, 1st Apr., 1898-Accepted, 18th June, 1898
Improvements in and in the Manufacture of India-rubber Tobacco
Pouches and Receptacles of a similar nature.
We, EDMUND JOSEPH BYRNE, of Gravelly Hill House, Gravelly Hill, near
Birmingham, in the County of Warwick, Rubber Manufacturer, and GEORGE
BOARDMAN, of 20, Prestbury Road, Birmingham, in the County of Warwick,
Commercial Clerk, do hereby declare the nature of this invention to be as
follows:
This invention relates to improvements in and in the manufacture of tobacco
pouches and such like rubber receptacles, and has for its object the production
of a tobacco pouch which shall be alike moulded and seamless. A special feature
of our invention is that we are enabled, by producing tobacco pouches in a moulded
and seamless condition, to steam vulcanize or cure them, which has hitherto been
found impossible with hand-made tobacco pouches. This steam curing is of great
importance as it makes the rubber stronger, more elastic, and less liable to be
affected by atmospheric changes, and these qualities embodied in tobacco pouches
will be found of great utility.
In producing a tobacco pouch according to our invention we take uncured
rubber of any suitable colour and from this we first form or fashion, by hand,
pieces of rubber to constitute the inside and outside of the pouch. These pieces
of rubber are then put into a mould and moulded, the pouch receiving a suitable
pattern or figure on the outside, or being moulded plain. The pouch will also
receive a beading all round its mouth and the said mouth will also be slightly
thickened at its two corners. It is also proposed in making the pouch to turn
in so that the mould mark shall come on the outside of the pouch. This seamless
moulded tobacco pouch is then subjected to a steam curing or vulcanizing process
and, after this has been accomplished, the pouch is then in a marketable condition.
By our tobacco pouch being produced in a seamless condition it is impossible
for it to come apart even in the warmest climates and further, by being steam
vulcanized, as before stated, it will be much more durable and elastic.
It will be obvious that our improved method of manufacturing tobacco pouches
may also be applied in the production of rubber receptacles of a similar nature.
Dated this 30th day of June 1897
W. P. THOMPSON & Co.,
11, Burlington Chambers, New Street, Birmingham,
Agents for Applicants.
W. P. THOMPSON & Co.,
11, Burlington Chambers, New Street, Birmingham,
Agents for Applicants.
Improvements in and in the Manufacture of India-rubber Tobacco
Pouches and Receptacles of a similar nature.
We, EDMUND JOSEPH BYRNE, of Gravelly Hill House, Gravelly Hill, near
Birmingham, in the County of Warwick, Rubber Manufacturer, and GEORGE
Q

page_text: BOARDMAN, of 20, Prestbury Road, Birmingham, in the County of Warwick,
Commercial Clerk, 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 relates to improvements in and in the manufacture of tobacco
pouches and such like rubber receptacles, and has for its object the production
of the same moulded and seamless or in one piece. A special feature of this inven-
tion is that we are enabled, by producing tobacco pouches and other rubber
receptacles in one piece and seamless, to steam vulcanize or cure them, which has
hitherto been found undesirable with such goods made by hand. The steam curing
referred to is an important factor in connection with the articles set forth, as it
renders the rubber more elastic, more strong, and less liable to atmospheric
changes, and these qualities are very desirable in a tobacco pouch..
In producing a tobacco pouch according to this invention. uncured rubber is
taken, of any suitable colour, and formed or fashion therefrom, upon a removable
portion of a mould, and by hand, are connected-together portions to constitute
the inside and outside of the pouch. These portions whilst upon the removable
mould part, as aforesaid, are then placed between and enclosed within a bottom
and top mould and are clamped between them by suitable pressure," the faces of
the said top and bottom moulds being either plain or set up with a suitable pattern
for the decorations of the outside of the pouch. The pouch is moulded, as it were,
inside out, and the mouth to its pockets is 'moulded witli' a beading and also its
corners are slightly thickened, all in view of strengthening the parts where
requisite. The pouch is then steamed cured or vulcanized, either previous or
subsequent to it being stripped from the middle mould or core, and is then in a
condition for the market.
In the accompanying sheet of drawings the invention is practically illustrated
both as regards the resultant article and the moulds wherein it is produced. In
the said sheet Figs. 1, 2 and 3 show respectively a side elevation an edge elevation
and a longitudinal section of the resultant article in an unfolded condition, and
Fig. 4 shows in part section and elevation the moulds wherein the said pouch is
moulded; the middle part of the moulds being the part in elevation. Fig. 5
is a plan of the acting face of the top mould, whilst Fig. 6 is a plan of the
acting face of the bottom mould. Figs. 7 and 8 represent; respec-
tively, top and underside elevations of the middle mould or core, and show the
grooves and cut away parts in which the beadings and strengthened edges of the
pouch are shaped.
The invention will now be described in connection with these drawings.
Uncured rubber is first taken and worked up upon the middle mould or core a
so that the whole of the necessary surface upon its faces, edges, and sinkings are
covered therewith, and, if necessary, certain parts of the moulding surfaces c², d²,
of the top and bottom moulds, c, d, may have the uncured rubber applied; it
being understood that the laying on is accomplished by hand and whilst the rubber
is in a plastic or putty state. The middle mould or core a is then lowered into
the recessed face of the bottom mould, d; so that its shank a² takes through the
hole in the bottom mould's body, and the top mould is then placed over the
bottom mould so as to enclose the core between it and the bottom mould with
C
the plastic rubber covering the whole of the core's face. Suitable pressure is
then applied to force the top and bottom moulds and also the middle mould or
core together so as to uniformly displace the plastic rubber and force it into the
interstices a³, a², a³, c², c³, d², d of the moulds, which causes the superfluous
rubber, if such there-be, to be displaced outwardly between the top and bottom
moulds, where it can be removed by a trimming operation or the like, as the case
may be.
It will be understood from the drawings that the grooves at, a, in the core mould
form the beadings, and the recessed parts a³, c³, and the thickened corners of
,"

page_text: At a suitable time the mould parts are separated and the moulded one-piece
pouch subjected to the steam curing or vulcanizing operation as well known.
In the drawings tapered pegs and holes are shown in the top and bottom moulds,
as gauges and registering pins in respect of each other.
In moulding an ornamental pouch, any suitable ornamentation is cut upon the
faces of the mould parts, and in moulding pouches of other shapes mould parts
of the particular shapes would be used, the grooves and sinkings being arranged
therein at the particular parts of the pouch where strength in necessary.
It will be obvious that the pouch is moulded, as it were, inside out, so that the
smoothest face shall be the one innermost upon the core, but this is not absolutely
necessary.
The application of this invention to receptacles similar in construction to a
tobacco pouch differs in no essential respect to that described and set forth herein.
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:-
-
First. A tobacco pouch or similar receptacle moulded and formed seamless
and in one piece, and which is capable of being steam cured or vulcanized, sub-
stantially as described and set forth.
Second. A tobacco pouch or similar receptacle moulded and formed seamless and
in one piece, and the method and means whereby the same is produced, sub-
stantially as set forth.
Third. In the production of a seamless and moulded one-piece tobacco pouch,
the use of a middle mould or core such as a, whereon the groundwork of the
resultant article is first placed and fashioned by hand, substantially as set forth.
Fourth. The combination of the resultant pouch or receptacle with the particular
moulds set forth for forming same.
W. P. THOMPSON & Co.,
11, Burlington Chambers, New Street, Birmingham,
Also of Liverpool, London and, Manchester,
Patent Agents for the Applicants.