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

page_text: Date of Application, 1st Sept., 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:-
This invention particularly refers to certain improvements in the tongs
described in the Specification of our Patent No. 12643, dated the 17th day of June
A.1). 1899 and our object is to arrange the same so that rollers may be employed
in the place of the dies in the formation of the bottle neck.
According to our invention we employ the double tongs and trigger arrange-
ment described in the specification of our patent above referred to, and the second
pair of bows carry the punches in a similar way.
The first pair of bows, however, instead of carrying stationary dies with holes
in the same for the passage of the punch ends, carry rollers which are set in such
a position that they move at a tangent towards the central mandrel on the con-
traction of the bows. This tangential movement has the double effect of allowing
the punches to pass the rollers and of effecting the formation of the neck with
considerably less power than if the rollers were closed directly towards the mandrel,
thus facilitating the operation by reducing the strain on the hand of the operator.
A single roller may be employed on each arm of the bow or they may be
mounted in pairs if desired.
Lateral motion of the bows is prevented by means of guides, a most suitable
guide being the embracing of the central spindle by means of clamping surfaces
on the interior of the bows.
Although we have described our invention with reference to the double bow
tongs previously patented by us, the improvements above described would be
equally applicable to any other suitable arrangement for controlling the punches
and rollers.
Dated this 1st day of Sentember A 1. 1899.
BREWER & SON,
London and Leeds,
Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Tongs Employed in the Manufacture of Bottle Necks.
We. THOMAS WILLIAM SIpsos, of The Mount, Bottle Manufacturer, Jons
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 following
statement:-
This invention particularly refers to certain improvements in the tongs.

page_text: described in the Specification of our Patent No. 12643, dated the 17th day of June
A.). 1899; and our object is to arrange the same so that rollers may be employed
in the formation of the bottle neck, the arrangement of the said rollers being also
applicable to the formation of necks without indents.
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 combined tool,
for forming the neck of a bottle with side indents, in the open or disengaged
position, and Figures 3 and 4 are similar views of the same tool with the parts
closed in forming the exterior of the bottle neck. Figures 5 and 6 show a pair
of tongs for forming a plain bottle neck without indentations, the two arms being
in the closed position as contracted by the grip of the hand
According to our invention we employ the plug A, base plate B, and central
stem C carrying the duplex bows D and E, also the triggers F, F and parts con-
neeted therewith as described in the specification of our patent above referred to,
and the second pair of bows E carry the punches L, L in a similar way. The first
pair of bows 1, however, instead of carrying stationary dies with holes in the
same for the passage of the punches L, L carry rollers K, K which are set in such
a position that they move at a tangent towards the central plug A on the con-
traction of the bows. This tangential movement of the rollers K, K has the
double effect of allowing the punches L, L to pass the rollers K, K and of effect-
ing the formation of the neck with considerably less power than if the rollers K, K
were closed directly towards the plug A, thus facilitating the operation by re-
ducing the strain on the hand of the operator.
In employing the above described tool, the bottle is first spun and the neck is
formed by the contraction of the rollers, and on stopping the rotation of the bottle
the indentations are afterwards made in the neck in a similar manner to that
described in our aforesaid specification. Should the neck be pressed out of shape
in making the indentations, the bows are reopened and the bottle is spun a second
time, when the rollers K, K are again brought against the glass and the neck is
corrected to its proper shape without removing the bottle from the plug A.
Instead of employing a single roller on each arm of the bows D as above
described, we may in some instances mount a pair of rollers on each arm of the
bows D.
Referring to Figures 5 and 6, the rollers K, K are shown mounted on side pro-
jections on the bows D of a single pair of tongs, and without any mechanism for
forming indents. This single tool is applicable for forming ordinary bottle necks,
and the small power required to contract the bows D when the rollers move towards
the central plug A at a tangent, enables this tool to be worked with the smallest
amount of strain on the hand of the operator.
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. The rollers K, K working at a tangent to the central plug A, substantially
as and for the purposes set forth.
2. The bows D carrying the rollers K, K working at a tangent to the central
plug A, in combination with the bows E carrying the punches L, L working cen-
trally with the plug A, substantially as and for the purposes set forth.
Dated this 15th day of December 1899.
BREWER & SON,
London and Leeds,
Agents for the Applicants.