Improvements in the Manufacture of Cornice Rings.
Year: 1886

page_text: Date of Application, 27th May, 1886.
Complete Left, 12th Jan., 1887.
Complete Accepted, 15th Feb., 1887.
RESERV
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Cornice Rings.
I, WILLIAM JAMES GIBBONS of 37 Ludgate Hill, Birmingham in the County of
Warwick Brassfounder do hereby declare the nature of my said invention to be as
follows:-
My invention has for its object improvements in the. manufacture of cornice rings
which I am able to make quicker and cheaper than formerly in the following manner.
I take a strip of metal sufficiently long to make a ring and sufficiently wide to turn
into a bead the size required. I then curl this round and solder the two ends together.
I then place the ring so made in the hollow chuck of a lathe which is concaved or
chambered out and by the application of a suitable friction tool or wheel I bulge the
ring outwards to form the outer part of the ring. I next place this partly made ring
in dies and close the edges up closer and by a second similar process I am able to
bring the inner edges of the plate together which finishes the ring with the exception
of the eye which may be put in through any part and the ends turned over or the eye
may be put in by a screw or soldered, therein as now done. Such rings are very strong
although made from thin metal and retain their shape well without solder around
the circular joint.
GEORGE
DARKER,
77, Colmore Row, Birmingham,
Agent for the Applicant.

page_text: I WILLIAM JAMES GIBBONS 37 Ludgate Hill Birmingham Brassfounder 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:-
A band of sheet brass of the required length and width is taken, and the two ends
thereof brought together and soldered, forming a blank ring, (fig. 1). The blank ring
is then placed in a cylindrical chuck which is made to revolve in an ordinary lathe.
A bowl attached to a lever is then applied, by means of which the blank ring is spun
into a convex shape, (fig. 2).
i
The two edges of the shell thus formed are then brought together in a horizontal
press, forming a hollow Cornice Ring, with the joint meeting on the inside (fig. 3).
The eye is afterwards put in, and the ring finished in the ordinary way.
The ordinary Cornice Rings are made in the following way :- -The sheet brass
is cut into long lengths which are drawn into tubes. The tubes are then coiled upon
a spit or mandril. The coils are then sawn through, and the cross joints of the
rings.thus formed are soldered together.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what 1
claim is :-
(1) The making of the blank ring from a band of sheet brass.
(2) The spinning of the blank ring into a convex shell by means of a cylindrical
chuck revolving in a lathe, and a bowl attached to a lever.
(3) The closing of the edges of the shell in a horizontal press, thus forming a hollow
Cornice Ring, with the joint meeting on the inside.
WILLIAM JAMES GIBBONS.