Year: 1886

page_text: Date of Application, 7th Dec., 1886
Complete Left, 3rd Sept., 1887.
Complete Accepted, 21st Oct., 1887
I, JOHN SOPER, of 172 Bridge Road Battersea in the County of Surrey, Gentleman,
do hereby declare the nature of this invention to be as follows:-
This Invention relates to an improvement in the necking Tool described in the
specification of Letters Patent granted to Henry Agar under the No. 1328 and date
of 30th January 1885 of which Patent I am the Assignee, and it consists essentially
in forming a vacuum in the revolving plate of said Tool and the body fixed thereto
on which the gradient arms are hinged, to permit a depression of the plunger
and collar.
I now make the revolving body to move around a tube instead of a fixed rod, it
being held in same position by means of collars or plates fixed on the tube above and
below same,
and its lower end firmly fixed through the steel bow.
A separate centre rod (with plunger and shaped collar) extends through, and
projects beyond the lower end of the tube which is forced upwards by a spring.
A shaped handle is fixed at extreme end of centre rod for the purpose of withdrawing
it to its lowest point before each necking operation is performed.
In the outside brass casing, and fixed tube, an aperture is formed to allow a pin or
other attachment fixed to the centre rod to pass up and down, and turn into a siding
at the bottom, the upper edge of which, in fixed tube, forms a shoulder to retain the
rod at its lowest point, and the upper end of the aperture forms a stop to same at its
highest point when the pin comes in contact with it.
To the hand spring is fixed an arm to dislodge the pin from the shoulder in fixed
tube, and force it into the centre aperture, the rod then springs upward and presses
the hot metal into every part of the mould.
The rubbing being performed by the revolutions of the inner body against the
external dies plunger and shaped plate as before.
The object of my invention being attained substantially in the manner above
described I do not propose to limit myself to the precise details above set forth.
Dated this Seventh day of December 1886.

page_text: An Improvement Applied to a Necking Tool for Working
Bottle Necks.
I, JOHN SOPER of 172 Bridge Road, Battersea, in the County of Surrey, Gentleman
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 an improvement in the necking tool described in the
Specification of Letters Patent granted to Henry Agar under the No. 1328 and date
of January 30th 1885, of which Patent I am the assignee, and it consists essentially
in forming a space in the revolving plate of said tool and the body fixed thereto,
on which the gradient arms are hinged, to permit a depression of the plunger
and collar.
The modifications in the construction of the necking tool whereby I am enabled to
effect this improvement are set forth in the following description, reference being had
to the accompanying sheet of drawings upon which:
Figure 1 is a longitudinal section through the centre of a necking tool embodying
my improvement.
Figure 2 a plan of the inner and outer dies and plunger.
Figure 3 detached parts operating the squeezing and rubbing.
Figure 4 a sectional elevation showing a modification and
Figure 5 a detail of same and
Figure 6. is a plan view of cross piece.
It will be seen that I now make the revolving plate and body (c c) to move around
the fixed tube (t); the body being held in position by means of the collars (d, d,)
fixed to the tube above and below same.
Or, in lieu of the plate c attached to the revolving body I may provide parallel
horizontal bands above the gradient dies and forming part of same (see 9, 9
Figs. 4 and 5) thereby making a vacuum when closed together, to produce a like
result as by the arrangement shown Fig. 1.
The lower end of the fixed tube t is firmly secured to the bow by means of the
screw nuts p.
To effect the squeezing of the metal as required and the rubbing of the top of the
bottle neck, I now use a central rod z moving up and down within the tube t; to the
upper end of this rod is fixed the plunger A having a collar a, and at its lower end a
spiral spring n (bearing upon nuts screwed to the lower end of the fixed tube and
centre rod) keeps the plunger withdrawn.
The plunger is moved in an opposite direction by means of an arm or thumb
piece (f) fixed to an outer movable tube (see Figs. 1 and 3) to be operated upon by
the workman for that purpose.

page_text: An opening is formed in the fixed tube t through which a pin (S) connected with
the centre rod passes, and connects the outer movable tube m with same; the movement
of the centre rod being controlled thereby.
The opening and closing of the hinged inner gradient dies (G G) is effected by the
spherical cup (I) acting upon their lower arms (H, H,); apertures being formed in
the sides of the cup through which these arms pass.
Grooves or slots are formed on the inclined arms of the cross piece K, and within
these grooves screws fixed in the bow handles work.
When hand pressure is applied to the bow, the cup I is forced forward by the
movement of the screws within the slots in the cross piece K, causing this latter to
press upon the shoulder (1) beneath the cup; the spring bow handles (C, C,) with-
drawing the cup, when the pressure upon them is released, by forcing the cross piece K
down upon the collar (j) fixed to the base of neck underneath same.
By this arrangement the spherical cup I, together with the body on which are
hinged the gradient dies G, revolve together around the fixed tube, independently of
the cross piece K (although connected with same) and free from contact with the
outside dies D, D.
The outer dies D, D, close together in the same manner as the inside dies, and may
be either concentric or eccentric on their inner faces; Grooves (y, y,) are formed on
these inner faces immediately below the edge of the gradient dies to provide a
receptacle for the surplus glass beyond what is necessary for producing a perfect
bottle neck; the surplus, if any, taking the form of a projecting ring upon the bottle
neck below the gradients.
By the aid of this tool I am enabled to produce grooves, gradient projections and
indents of any length according with the shape of the dies used.
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. A necking Tool for working bottle necks, in the revolving plate and body of
which a space is formed in the manner substantially as described for the purposes
specified.
2. In a necking tool in which a space is formed as above described, operating the
gradient dies by the spherical cup, this latter being actuated by the cross piece K
substantially as described.
3. In a necking tool in which a space is formed as above described, leaving the
cup I, gradient dies and plate and body c, free to revolve upon the fixed tube t,
substantially as described for the purpose specified.
4. In a necking tool in which a space is formed as above described, the combination
of the outer movable tube m with the centre rod z and the fixed tube t substantially
as shown Figures 1 and 3 of the drawing.
5. A necking Tool constructed, combined, and arranged to operate as hereinbefore
described.