An Improvement in the Manufacture of Brass Rings for Cornice Poles and the like.
Year: 1887

page_text: Date of Application, 8th Nov., 1887
Complete Specification Left, 7th Aug., 1888
Complete Specification Accepted, 28th Sept., 1888
PROVISIONAL SPECIFICATION.
An Improvement in the Manufacture of Brass Rings for Cornice
Poles and the like.
I WILLIAM JAMES GIBBONS Brassfounder 37 Ludgate Hill Birmingham do
hereby declare the nature of this invention to be as follows:-
A piece of sheet metal of the required length and width is passed through a
draw-plate and fastened to a mandril. The draw-plate is pierced so as to force the
metal into a half-round section and the mandril is corrugated to receive the metal
as it comes from the draw-plate. The mandril is then made to revolve on an
ordinary lathe, thereby causing the metal to be coiled upon the mandril. The half-
round section is preserved during the coiling process by means of a die which is made
to press upon the metal as it passes over the mandril. When the coil is removed
from the mandril a saw is run through it thus forming a number of rings. The ends
of the rings aro then brazed and the two edges of the same brought together in a
horizontal press thus forming hollow brass rings' with the joint meeting on the inside.
The eye is afterwards put in (if required) and the rings finished in the usual way.
Dated this 7th day of November 1887.
WILLIAM JAMES GIBBONS.

page_text: COMPLETE SPECIFICATION.
An Improvement in the Manufacture of Brass Rings for Cornice
Poles and the like.
WILLIAM JAMES GIBBONS
hereby declare the nature of
be performed, to be particularly
statement :-
Brassfounder 37 Ludgate Hill Birmingham do
this invention and in what manner the same is to
described and ascertained in and by the following
A piece of sheet metal of the required length and width is passed through a draw-
plate Fig. 1 and fastened to a mandril Fig. 2. The draw-plate is pierced so as to
force the metal into a half-round section and the mandril is corrugated to receive the
metal as it comes from the draw-plate. The mandril is then made to revolve in an
ordinary lathe thereby causing the metal to be coiled upon the mandril. The half-
round section is preserved during the coiling process by means of a die Fig. 3 which
is made to press upon the metal as it passes over the mandril. When the coil is
removed from the mandril a saw is run through it thus forming a number of rings
Fig. 4. The ends of the rings are then brazed and the two edges of the same
brought together in a horizontal press thus forming hollow brass rings Fig. 5 with
the joint meeting on the inside Fig. 6. The eye is afterwards put in (if required)
and the rings finished in the usual way.
Having now particularly described and ascertained the nature of my said invon-
tion and in what manner the same is to be performed I declare that what [
claim is
(1) The coiling of the strips of metal upon the corrugated mandril.
(2) The die which holds the metal upon the mandril and preserves its half-round
section during the coiling process.
(3) The closing of the two edges of the rings in. a horizontal press, thus forming
hollow brass rings with the joint meeting on the inside.
Dated this 6th day of. August 1888.
WILLIAM JAMES GIBBONS.