Improvements in Tongs employed in the Manufacture of Bottle Necks.
Year: 1899

page_text: Date of Application, 17th June, 1899
Complete Specification Left, 15th Jan., 1900-Accepted, 17th Feb., 1900
PROVISIONAL SPECIFICATION.
Improvements in Tongs employed in the Manufacture of Bottle Necks.
+
We, THOMAS WILLIAM SIMPSON, of The Mount, Bottle Manufacturer, JOHN
SIMPSON, of Roundhill, Bottle Manufacturer, and WILLIAM HENRY BRADSHAW, of
Lower Oxford Street, Mechanic, all of Castleford, in the County of York, do
hereby declare the nature of this invention to be as follows:-
Our invention refers to tongs employed in the manufacture of bottle necks, and
our object is to construct the same in such a manner that the said necks may be
first efficiently worked up and then without the necessity of removing the tongs,
indentations or other recesses may be formed in the exterior of the neck.
According to our invention we employ a central mandrel of the shape of the
interior of the bottle neck to be produced, and the said mandrel has a base plate
which acts as a distance plate for regulating the amount of contraction of the
dies which are carried on the free ends of a pair of bows. A second pair of
bows is provided on the exterior of the first bows, the ends of the second bows
being, turned in and of punch like form, and working through suitable holes.in
the dies in such a manner that when the second bows are made to close on the
first pair of bows, the punches project through the faces of the dies and indent
the exterior of the bottle embraced by the said dies.
Two triggers are provided for the purpose of locking the outer pair of bows
equidistant from the inner pair of bows, so that on the outer bows being gripped,
the inner and outer bows are simultaneously, moved as though they were a single
pair until their movement is checked by the distance plate at the base of the
mandrel. On releasing the triggers, which may be effected by a spring thumb
motion sliding inside or outside the central rod and connected at the end to both
triggers; the connection of the two pairs of bows is broken, thus allowing the
outer pair to close on the inner pair and thus project the punches through the
holes in the dies.
•
In the above manner the bottle neck may first be worked up by the dies in the
ordinary way and then on stopping the rotation of the bottle the punches may be
closed, thus forming the recesses most readily and with the greatest accuracy.
The uies are preferably formed with concave faces, thus preventing the holes
through which the punches pass from marking the exterior of the neck as the
bottle rotates.
F

page_text: Improvements in Tongs employed in the Manufacture of Bottle Necks.
We, THOMAS WILLIAM SIMPSON, of The Mount, Bottle Manufacturer, JOHN
SIMPSON, of Roundhill, Bottle Manufacturer, and WILLIAM HENRY BRADSHAW, of
Lower Oxford Street, Mechanic, all of Castleford, in the County of York, 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 follow-
ing statement: —
This invention refers to tongs employed in the manufacture of bottle necks; and
our object is to construct the same in such a manner that the neck may be first
efficiently worked up, and indentations or other recesses may then be formed in
the exterior of the neck, at successive operations both of which are performed by
the gripping action of the hand and without removing the plug from the neck
of the bottle.
In order that our invention may be clearly understood, we will proceed to
describe the same with reference to the accompanying drawings, in which similar
letters refer to like parts in all the figures.
Figures 1 and 2 are respectively an elevation and a plan of a tool constructed
in accordance with our invention in the open or disengaged position, Figures 3
and 4 are similar views of the same tool with the parts closed in forming the
exterior of the bottle neck, and Figures 5 and 6 show the parts closed in making
the indentations in the outer portion of the neck.
According to our invention we employ a central plug A having a base plate B
and being carried on a central stem C, and the base of the latter is attached to
the bend of duplex pairs of bows D and E. Triggers F, F fulcrumed on the
outer ends of the bows D engage with pins G, G carried on the bows E, thus
locking the pairs of bows D and E equidistant from each other. The inner ends
of the triggers F, F have slots F1, F¹ in the same working on studs H¹, H¹ carried
on a sliding piece H, and the latter is kept downward by means of a spring (not
shown in the drawings) contained in the stem C. A rod J passing through the
centre of the stem C is connected at one end to the sliding piece H and projects
at its opposite end from the slot C₁ so as to form a thumb piece sliding longi-
tudinally on the stem C. The inner shoulders D₁ of the bows D are formed to
embrace a collar 02 carried on the stem C so as to prevent any lateral movement
in the working of the bows D and E. The ends of the bows D carry dies K, K
which have an interior surface suitable for forming the bottle neck, and the ends
of the bows E are provided with punches L, L which pass through holes K', K'
in the dies K, K, situated in the required position for forming the indentations.
In forming a bottle neck with the tool above described, the plug A is inserted
in the neck and whilst the bottle is spinning the bows E are contracted by the
grip of the hand. As the bows D and E are held equi-distant by the triggers F, F,
the two pairs of bows contract simultaneously, and the dies K, K are moved inward
towards the plug A. as seen at Figures 3 and 4, and this inward movement of the
dies K, K has the effect of working up the glass into shape and thus forming the
neck. The required shape having been imparted to the neck, the rotation of the
bottle is stopped and the rod J is pressed forward by the operator's thumb, thus
causing the sliding piece. H.to move into the position shown at Figures 5 and 6
and release the triggers F; F, with the result that the bows E are allowed to
contract still further to the grip of the hand, and thereby cause the punches L, L
to pass through the faces of the dies K, K, and enter the neck, thereby making
the required indentations.

page_text: The dies K, K are preferably formed with concave faces, thus preventing the
holes K, K through which the punches L, L pass from marking the exterior
of the neck as the bottle rotates.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is :-
1. Tongs for forming bottle necks with side indents in the same, so constructed
that the first grip of the hand operates the neck-forming portions of the tongs
and on releasing trigger mechanism by a movement of a finger or thumb, the
continued grip of the hand operates punches for forming the indents, substantially
as described.
2. The duplex bows D and E held equidistant by suitable trigger mechanism,
substantially as and for the purposes set forth.
3. The combination of the triggers F, F having slots F¹. F¹, pins G, G, sliding
piece H having studs H¹, H' on same, and suitable mechanism for actuating the
sliding piece H, substantially as and for the purposes set forth.
4. The combination of the plug A, shoulder B, stem C, duplex bows D and E,
trigger mechanism for operating the bows, dies K, K and punches L, L, substan-
tially as and for the purposes set forth.
5. The general arrangement, construction and combination of the various parts
forming the tongs to be employed in the manufacture of bottle necks, substan-
tially as herein set forth.
Lata
IXUU
Lotod KA
BREWER & SON,
London and Leeds, Agents for the Applicants.