AN IMPROVED NECKING TOOL FOR WORKING BOTTLE NECKS
Year: 1885

page_text: HENRY AGAR, 2 Benson Cottages, Longfellow Road Worcester Park, (Cabinet-
maker) do hereby declare the nature of my invention for AN IMPROVED NECKING
TOOL FOR WORKING BOTTLE NECKS to be as follows:-
On a Centre Rod or Plunger A with a Stationary plate, I attach a Spring Steel
Bow G. G. on each end of which I place by means of screw nuts a flat concave
die F. Under the Stationary plate on plunger I provide a revolving plate B with
arms attached on which are pivoted two inner gradient dies E. E. of the form to be
put on bottle. The lower arms of the gradient dies I encase in a moveable
Spherical Cup C which acting upon the lower arms of the gradient dies throws
them open and allows the bottle to be removed from the Plunger. By means of a
tool on this principle I claim to put on any bottle in the ordinary working thereof
as practised in our large glass bottle works, an entire gradient round the bottle
neck, or two grooves in the sides and a perfect gradient on each half of the bottle
neck, with or without a stop at the termination of the gradient.

page_text: In working with my improved tool, the bottle M being hot or plastic, or having
the necessary metal thereon in a hot and plastic state for the formation of the neck,
the plug A is introduced into the neck and the spring bow CC firmly compressed
by the hand of the workman, whereby the two gradient dies G G are brought
together around the neck of the bottle so that the two dies or pads D D may as
hereinafter described rub the projecting metal into the spaces on the neck of the
bottle left uncovered by the gradient dies G G. The lower arms of these gradient
dies by the pressure on their outer and upper surfaces by the dies D D at the same
time act as levers on the inside of the spherical cup, forcing it downward so as to
compress the spiral spring L. The bottle with the gradient dies G G in their closed
position around the outside of the neck of the bottle are then, by the ordinary
process in bottle necking, made to revolve together round the plunger-The metal
to form the projections on the outside of the neck of the bottle by coming into
contact during this revolution with the outer fixed dies D D is thereby rubbed into
a finished shape corresponding with the edges of the gradient dies G G. The inner
surface of the neck of the bottle at the same time becomes smoothly finished as in
the case of ordinary bottles by rubbing on the plunger. When the projection e or
revolving plate E is in line with the notch i on the spherical cup I, the workman
releases the hand pressure on the spring bow and the bottle may then be removed
from the tool; the spherical cup, assisted by the spiral spring acting upon the lower
arins of the gradient dies and throwing them open.
The shape given to the gradient dies will necessarily depend upon the gradient
or gradients and grooves to be formed upon the neck of the bottle.
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. An improved necking tool for working bottle necks constructed, combined,
and arranged to operate substantially as hereinbefore described for the purpose
specified.
2. In a necking tool for working bottle necks, the revolving gradient dies G G
and the outer dies or pads F F operated by the spring bow C, and in reverse
manner by the spherical cup I and the spiral spring L, to form the gradient or
gradients on the neck of the bottle, substantially as described.
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