Forms on the Exterior of the Heads of Glass Bottles.
Year: 1885

page_text: Forms on the Exterior of the Heads of Glass Bottles.
0
I HIRAM CODD of 41 Gracechurch Street in the City of London, Bottle
Manufacturer do hereby declare the nature of my invention for "IMPROVEMENTS-
IN TOOLS FOR MOULDING SCREW THREADS AND OTHER FORMS ON THE EXTERIOR
OF THE HEADS OF GLASS BOTTLES to be as follows:-
"
This Invention has for its object improvements in tools for moulding screw
threads and other forms on the exterior of the heads of glass bottles.
For this purpose I make the tools some what in the form of the tongs now
commonly employed for shaping the heads of bottles with a central plug or core to.
enter the mouth of the head of the bottle to be moulded to form-but instead of.
the exterior of the head being moulded to form by die blocks carried at the ends of
the two arms of the tongs as is usual I mount upon the disc or "swiller" which is
at the base of the central plug or core a hollow cylindrical die the interior of which
is of the form to be given to the exterior of the head and this die I make capable
of turning freely around the central plug or core, whenever the arms of the tongs
are grasped in the hand, so as to press then inwards towards one another-I also
cause the pressing inwards of the arms of the tongs to make a dog or blade to
protrude outwards from the central plug or core so that when the bottle is rotated.
in the ordinary manner and the tool held fast the soft "metal" of the head is by it'
pressed outwards against the interior of the die and the exterior of the head so
made to conform to its inner circumference.
If a screw thread is to be moulded around the exterior of the head of the bottle
then a screw thread is moulded around the interior of the die and in order that the
head of the bottle may when it has been moulded to form be unscrewed from the
die I provide the extremities of the arms of the tongs with projections from them
carrying teeth to enter into notches in the exterior of the die whenever the arms of
the tongs are allowed to spring outwards away from one another so as at this time
to lock the die and prevents its turning. In this way the head of the bottle can be
withdrawn from the die by rotating the bottle whilst the tongs are held fast-or
the die might be divided crosswise into two or more parts which when the arms of
the tongs are allowed to spring away from one another are caused to separate so as
to liberate the head of the bottle.
>

page_text: In this case I construct the tool in such manner that when the arms of the tongs
are pressed inwards towards one another they first cause the parts of the die to.
close together and then protrude the dog or blade from the central plug or core.
By this means the exterior of the head of a bottle may have indentations or
projections of any desired form moulded upon it.
Dated this 10th day of March 1885
Forms on the Exterior of the Heads of Glass Bottles.
I HIRAM CODD of 41 Gracechurch Street in the City of London Bottle
Manufacturer 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 for its object improvements in tools for moulding screw
threads and other forms on the exterior of the heads of glass bottles.
In the Specification lodged by me with an application for a Patent No 2401 in
the present year I described the making of tools for moulding the heads of bottles
with two or more moveable die blocks which could be forced together to form one
complete cylindrical die internally of the form to be given to the head and which
could then swivel freely around a central plug or core from which blades or dogs
were protruded to expand the head of a bottle into the die.
According to my present invention I make the cylindrical die within which the
heads of the bottles are to be moulded in one piece instead of making it up of two
or more die blocks capable of being moved towards or away from one another.
This cylindrical die I mount so that it can swivel freely around the central plug or
core whenever the arms of the tongs are grasped in the hand and pressed inwards
towards one another-1 also by the pressing inwards of the arms cause dogs or
blades to be protruded outwards from the central plug or core as described in the
specification before mentioned so that when the bottle is rotated in the ordinary
manner and the tool held fast the soft metal of the head may by them be pressed
outwards against the interior of the die and the exterior of the head so made to
conform to its inner circumference.
If a screw thread is to be moulded around the exterior of the head of a bottle
then a screw thread is cut around the interior of the die and in order that the head
of the bottle when it has been moulded to form may be unscrewed from the die

page_text: I provide means for holding the die fast and preventing it from rotating whenever
the arms of the tongs are allowed to spring outwards away from one another. This
I effect by forming a series of notches around the outer circumference of the die
into some or other of which teeth carried by blades which extend from the arms of
the tongs are made to enter when the arms spring outwards. In this way the head
of the bottle can be withdrawn from the die by rotating the bottle whilst the tongs
are held fast.
In place of a screw thread being cut around the interior of the cylindrical die it
might be formed with projections or recesses of any desired form to mould
corresponding recesses or projections in or upon the head of a bottle so long as such
recesses or projections do not interfere with the head of the bottle being withdrawn
endwise from the die after being moulded therein.
The drawing hereunto annexed shows a tool formed as above described.
Figure 1 is a side elevation of the tool-Figure 2 an end view-Figure 3 a
vertical section of the circular die the central plug and the parts which secure it to
the end of the central stem-Figure 4 is a side elevation of these same parts.
A A are the two arms of the tongs which tend to spring outwards away from
one another as in the tongs ordinarily employed for moulding the heads of bottles-
B is a central stem fixed at one end to the spring bend which couples together the
two arms A and at its opposite end carrying a central plug or core C to enter the
mouth of a bottle.
This core is also fitted with dogs D which can be withdrawn into the core or be
made to protrude therefrom they are carried by spring blades E as is now usual-
F is a wedge which can be thrust between the spring blades to force them apart
from one another and so make the dogs protrude from the central plug or core C.
The wedge is as described in the specification of a Patent granted to myself and
Frederick Foster No 4268 in the year 1873 fixed to a bar H generally called the
quadrant which is thrust forwards when the tongs are grasped in the hand and the
arms of the tongs so made to approach one another. The ends of the quadrant have
for this purpose slots formed in them inclined to one another and pins on the arms
project through these slots.
The central plug or core C is carried by the stem B in the following manner:-
The stem has rigidly fixed to it a forked piece I, this fork has lugs 1 projecting
from its arms to which is secured a flange J which is around the base of a
cylinder J. The plug or core C projects from this cylinder, it has as heretofore a
transverse slot formed through it in which lie the dogs D-these are carried by
spring blades E which are fixed as shown to the forked piece I. Surrounding the
cylinder J is another and longer cylinder K the inner end of this cylinder_rests
against the flange J¹ and is held from moving away from it by a split ring L the
two parts of which lie in a groove formed around the circumference of the cylinder
and at their ends are fixed by screws M to the ends of the two arms of the fork I.
The interior of the outer end of the cylinder K forms the die within which the
heads of bottles are to be moulded. In the drawing the interior of the cylinder is
shown to have a screw thread cut around it, in order that a screw thread may be
moulded around the exterior of the bottle heads but the interior of the cylinder
might in cases where it is desired to mould projections or recesses in the heads of
bottles be formed with projections or recesses so long as they are of such a form
that the head of a bottle after having been moulded to form within the cylinder
can be withdrawn endwise from it K' is a ring of teeth around the exterior of the
cylinder K-N N' are teeth on blades N which are fixed to the extremities of the
arins A of the tongs. When the tongs are grasped in the hand the teeth N¹ are
moved away from the teeth K₁ and the cylindrical die K can revolve freely but
when the arms A are allowed to spring outwards away from one another the
teeth N¹ engage with the teeth K' and stop the die K from turning. The head of
the bottle with a screw thread moulded upon it can then be unscrewed from the
die. If projections or indentations only have been formed on the exterior of the
head of the bottle and the head of the bottle has to be withdrawn endwise from

page_text: the die, it is not essential to retain the die from rotating whilst the head of the
bottle is being withdrawn.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
1. The construction of tools for moulding the exterior of the heads of bottles
with a cylindrical die internally of the form to be given to the heads and capable
of swivelling freely around a central plug or core from which blades or dogs can be
protruded to expand the head of the bottle into the cylindrical die substantially as
described.
2. The construction of tools for moulding screw threads and other forms on the
exterior of the heads of glass bottles substantially as described.
Dated this 4th day of Doomba- 100%
CARPMAEL & Co.,
Agents for the Applicant. 15