AN IMPROVED TOOL FOR FORMING NECKS OF BOTTLES
Year: 1877

page_text: LETTERS PATENT to Barron Kilner and John William Kilner, of Wakefield,
in the County of York, Bottle Manufacturers, for the Invention of "AN
IMPROVED TOOL FOR FORMING NECKS OF BOTTLES."
Sealed the 10th August 1877, and dated the 14th February 1877.
PROVISIONAL SPECIFICATION left by the said Barron Kilner and John
William Kilner at the Office of the Commissioners of Patents on the 14th
February 1877.
BARRON KILNER and JOHN WILLIAM KILNER, of Wakefield, in the County of
York, Bottle Manufacturers. "AN IMPROVED TOOL FOR FORMING NECKS OF
BOTTLES."
Our Invention consists in an improved tool for the forming of necks of bottles
which are stoppered from the interior by means of wholly or partially elastic
stoppers. For this purpose we employ a tool somewhat similar to that which is
known as a "slide tool," for the construction of necks of ordinary bottles, but
varying from it in the following particulars:-The "guider" in our improved tool
is made of two pieces, and the plug which forms the interior of the neck is of a
conical shape, but also slightly tapering inwards at the base, and is also made of
two pieces. One of each of the pieces of the plug is fixed to one of the pieces of
the guider in such a manner that when the dies are pressed towards the plug the
two pieces forming the plug separate laterally, thereby making the plug of a larger
diameter, and when the pressure is withdrawn they revert to their original position.
Small studs are placed on the guiders in order to regulate the distance apart which
the parts of the plugs are required to be separated.
The object of this peculiarly constructed tool is to make the interior of the neck
of the bottle so shaped as to prevent the stopper from being forced out by internal
pressure of gas
When the tool is inserted in the neck the dies are pressed together, and the
bottle being turned round the plug forms the interior of the neck with a small
flange at the top, below which, opposite the tapering part of the base of the plug,
owing to the absence of pressure, there will be a tapering ridge or "side bite." This
[Price 2d31

page_text: ridge or "side bite" will prevent the stopper from being forced out of the bottle
without allowing it to come up to the top, or keeping it so far down the neck as to
make it inconvenient for unstoppering.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Barron Kilner and John William Kilner in the Great Seal Patent
Office on the 14th August 1877.
BARRON KILNER and JOHN WILLIAM KILNER, of Wakefield, in the County of
York, Bottle Manufacturers. "AN IMPROVED TOOL FOR FORMING NECKS OF
BOTTLES."
Our Invention consists in an improved tool for the forming of necks of bottles
which are stoppered from the interior by means of wholly or partially elastic
stoppers. For this purpose we employ a tool somewhat similar to that which is
known as a "slide tool," for the construction of necks of ordinary bottles, but
varying from it in the following particulars:-The "guider" in our improved tool
is made of two pieces, and the plug which forms the interior of the neck is of a
conical shape, but also slightly tapering inwards at the base, and is also made of
two pieces. One of each of the pieces of the plug is fixed to one of the pieces of
the guider in such a manner that when the dies are pressed towards the plug the
two pieces forming the plug separate laterally, thereby making the plug of a larger
diameter, and when the pressure is withdrawn they revert to their original position.
Small studs are placed outside the "guiders" in order to regulate the distance apart
which the parts of the plug are required to be separated.
The object of this peculiarly constructed tool is to make the interior of the neck
of the bottle so shaped as to prevent the stopper from being forced out by internal
pressure of gas.
When the tool is inserted in the neck the dies are pressed together, and the
bottle being turned round the plug forms the interior of the neck with a small
flange at the top, below which, opposite the tapering part of the base of the plug,
owing to the absence of pressure, there will be a tapering ridge or "side bite." This
ridge or side bite will prevent the stopper from being forced out of the bottle
without allowing it to come up to the top, or keeping it so far down the neck as to
make it inconvenient for unstoppering.
Having now described the nature of our Invention, and in what manner the same
is to be carried into effect, we wish it to be understood that we do not claim as new
the "slide tool;" but what we claim is, the peculiar modification and construction
of parts for the purpose of forming the ridge or "side bite," substantially in the
manner herein-before described.
In witness whereof, I, the said Barron Kilner, have hereunto set my hand and
seal, this Fourteenth day of August, in the year of our Lord One thousand
eight hundred and seventy-seven.