Improvements in or relating to Apparatus for Shaping the Mouths of Glass Bottles or Jars and Forming them with Screw Threads.
Year: 1894

page_text: Date of Application, 15th Nov., 1894
Complete Specification Left, 15th Aug., 1895-Accepted, 26th Oct.; 1895
PROVISIONAL SPECIFICATION.
Improvements in or relating to Apparatus for Shaping the Mouths
of Glass Bottles or Jars and Forming them with Screw Threads.
I, GEORGE HOUGHTON of Peasley Cross, St. Heleus in the County of
Lancaster, do hereby declare the nature of this invention to be as follows:-
This invention has for its object an apparatus for shaping the mouths of bottles
or jars and forming them with screw threads. It is designed especially to provide
means whereby the mouth of the article may be shaped and the screw or other
threads formed simultaneously, and moreover all the mouths and threads produced
of one uniform size.
In carrying my invention into effect, the plan I prefer is to provide a plug or
spindle with suitably shaped end for receiving the mouth of the bottle. This plug
is formed in two halves, so that the two parts will spread apart when required.
They are operated simultaneously by spring tongs or jaws which carry shaping
dies or moulds (either fast or rolling dies) at their ends. The latter are adapted
to form or shape the collar of the bottle. In connection with these tongs and
arranged concentrically with the two halves of the split plug, I arrange an annular
die or mould for forming the screw threads on the outside of the mouth. This die
is rotatable when the shaping jaws are compressed, but locked so that it cannot
rotate when the jaws are spread outwards, this being preferably effected by means
of a locking pin which is pressed into or out of engagement with the annular die
according to whether the spring jaws are compressed or separated.
The mode of action is as follows:-
The bottle being placed in position, the tongs or jaws are compressed and the
punty by which the glass maker manipulates the bottle rotated. This movement
releases the annular die so that it is free to rotate, and moreover expands
simultaneously the two halves of the split plug, thus spreading the glass and
pressing it into the screw threads in the annular die. By this means a screw is
formed on the outside of the neck or mouth of the bottle and the remainder of the
neck is finished off and formed into the required shape by the shaping dies
aforesaid. The annular die being rotatable when the tongs are compressed prevents
any danger of the threads being mutilated. Immediately the tongs are released,
the two halves of the split plug spring together again by means of a suitably
arranged spring with which they are provided, the jaws spring open and the bottle
is removed from the die by revolving the punty the reverse way:
I have described one way in which my invention may be carried into effect, but
it is obvious that in cases where it is desired to have the screw thread inside the
mouth of the bottle, the annular die instead of being made with a screw thread is
formed quite plain and the threads formed on the split plug. Thus bottles with
internal or external threads can be formed of one uniform size.
Dated this 14th day of November 1894.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Patent Agents for the Applicant.

page_text: Improvements in or relating to Apparatus for Shaping the Mouths
of Glass Bottles or Jars and Forming them with Screw Threads.
I, GEORGE HOUGHTON of Peasley Cross, St. Helens in the County of
Lancaster, Licensed Victualler, 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 an apparatus for shaping the mouths of bottles
or jars and forming them with screw threads. It is designed especially to provide
means whereby the mouth of the article may be shaped and the screw threads
formed simultaneously and moreover all the mouths and threads produced of one
uniform size.
Referring to the drawings,
Fig. 1 is a plan of the apparatus.
Fig. 2 end elevation of same.
Fig. 3 enlarged detail.
In these A is a hinged plug formed in two pieces being suitably shaped for
cutting into and forming the mouth of the bottle. It is formed in two parts so
that they can be spread out when required. They are pivoted on pins a and are
actuated by means of tong handles B B worked by the main tongs C C. This
latter is formed of a blade of stout steel or other material bent over in trough
form in the centre so as to be stiff and also hold the ends of tong handles B.
These pass between the bottom of the trough and the pins D. E is a spindle
fixed by nuts e to the spring of the outer tong C. A cross head F on this spindle
carries the pivots a on which the tongs B work. This cross head also carries the
circular frame G. In this circular frame runs the die H. This die is formed with
the requisite screw threads for the exterior of the bottle or jar neck. Die H runs
on three conical pulleys I. J is a pin supported on yoke K. This yoke is in turn
supported on two pins L L fixed in the outer tongs C. M M are two dies rigidly
fixed on the squared ends of tongs C and held in place by nuts N.
The mode of action is as follows:-
The bottle is placed in position with the plug A entering therein. The tongs or
jaws C & B are compressed and the punty by which the glass maker holds the
bottle is rotated; compressing the jaws slides the yoke K and removes the locking
pin J out of engagement with the annular die H which is thus set free to rotate.
The two halves of the plug A spread out, and as the glass is rotated round them
they spread the glass out pressing it into the screw threads of the die H. By this
means a screw is formed on the outside or neck of the mouth of the bottle. The
remainder of the neck is finished off and formed into the required shape by the
shaping dies M, the annular die H being rotatable when the tongs are compressed
prevents any danger of the threads being mutilated as the die rotates with the
bottle. Immediately however the tongs are released the two halves of the split
plug spring together again by means of the spring at the end of the tongs C
causing the said tongs to expand, and by means of pins D expanding the lower
arms of tongs B. Furthermore by means of the pins L, the yoke K is slid
longitudinally putting the locking pin J into engagement with the die H whereby
the said die is locked and cannot rotate. The bottle is now released from every-
thing except the die Hand by revolving the punty in the reverse way from the
previous motion it can be withdrawn the die H being in the meantime held locked
by pin J. I have described the best mode known to me for carrying ny
invention into effect, but it is obvious that in cases where it is desirable to have
the screw thread inside the mouth of the bottle the annular die H instead of
being made with a screw thread inside is formed quite plain, and the threads are

page_text: formed on the split plug A. Thus bottles with internal or external threads can
be formed of one uniform size and in the rare cases where it is desirable to have
threads both on the inside and on the out this machine can still be employed for
the purpose.
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 :-
1. The combination of improvements in or relating to apparatus for shaping the
mouths of glass bottles or jars and forming them with screw threads substantially
as herein described and illustrated also the following parts or improvements taken
separately:-
--
(a) The combination with a rotating bottle of a screw cut die capable of
freely revolving with the bottle neck, a device with limited movement for
pressing the glass into the threads of the revolving die, and mechanism for
locking that die whereby when the bottle neck has been formed it can be
screwed out of the die and released.
(b.) The combination of exterior dies for forming the bottle neck having a
limited travel towards the centre split centre plug, the latter having a
limited travel opening outwards towards the exterior dies, and a second
exterior die for forming the mouth of the bottle either this die or the split
plug being formed with the requisite amount of screw thread whereby
screwed mouths can be formed in a series of bottles all of precisely the same
diameter inside and out and with the same threads, and having a neck the
same size exteriorly.
(c.) The mechanism for actuating the dies and plug and for limiting and
locking the same substantially as described.
Dated the 14th day of August 1895.
WM. P. THOMPSON & Co.,
Of 6 Lord Street, Liverpool, Patent Agents for the Applicant.