Year: 1888

page_text: Date of Application, 25th Apr., 1888
Specification Accepted, 25th May, 1888
I TOM KILNER of Thornhill Lees near Dewsbury in the County of York, Glass
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 :-
Hitherto glass bottle necks have been formed with tools, which whilst forming the
interior of the necks pretty accurately to one size, have left the outside diameters of
the edge or mouth of the bottles of different or varying sizes; so that whilst corks or
stoppers fitting the interior of the mouth of one bottle would generally also fit the
mouths of all other bottles made with the same tool, yet a cap which would fit over
the mouth and outside edge of one bottle would only fit the outside of a small
proportion of bottle necks formed with the same tool. Now the object of my Inven-
tion is an improved arrangement of tool, the improvement being such that all bottle
necks formed with the tool are of a uniform size, not only as regards the inner
which
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diameter, but also with respect to the outer diameter; and therefore a
would accurately fit over one bottle neck formed with this tool, should likewise fit all
other bottle necks formed with the same tool.
In order that my Invention may be readily and clearly understood, reference will
at once be had to the accompanying drawing, in which Fig. 1 is a front elevation,
and Fig. 2 a plan looking on the top of a bottle neck forming tool having my Inven-
tion applied thereto.
The tool consists of a spring tongs a, formed over its greater length of sheet metal
dished at the sides so as to be readily grasped by hand. The upper ends of the tongs
carry the dies b for forming the collar or swell on the bottle neck and the part
immediately below such collar. The centre rod c, adjustable in height by means of
the nuts d, carries at its upper end the plug e, for forming the interior of the bottle
neck; the bottle being inverted when placed on the plug (as shewn in dotted lines),
with the edge of the mouth resting on the disc f. The bottle being held in position
and the tool rotated several times backwards and forwards round the bottle neck, or
vice-versa; the spring tongs are at the same time compressed by hand to bring the
dies sufficiently near to mould or form the outside of the neck.

page_text: Instead of forming the whole of the outside of the neck by means of the dies b
pressed together by hand, and which would leave such necks with the above mentioned
want of accuracy or uniformity of size of the outside diameters; I place or attach to
the before mentioned disc f a pair of fixed dies or distance pieces g, both at the same
distance but on opposite sides of the plug surface. The metal which forms the
extreme edge of the bottle neck or mouth is moulded or shaped in this space between
the plug e and the fixed dies g, and is consequently accurately formed of the same
exterior and interior diameters as any or all of the bottles made with the same tool,
and therefore a stopper or cap formed to fit any one bottle neck inside or outside, will
fit equally well the interior or exterior of any other bottle neck formed with the same
tool.
Although I have shewn the fixed dies in plan as perfectly straight, it will be
evident that they may be formed somewhat curved, also that more than two fixed dies
may be used if desired.
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 :-
11
In a tool for forming the necks of glass bottles, the use of fixed dies or distance
pieces, for securing accuracy and uniformity in the outside diameters of the lip or
edge of the necks of glass bottles formed therewith, substantially as herein set
forth.