Improvements in the Manufacture of Incandescence Bodies for Illuminating Purposes.
Year: 1896

page_text: Date of Application, 21st Feb., 1896
Complete Specification Left, 23rd Nov., 1896-Accepted, 24th Dec., 1896
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Incandescence Bodies for
Illuminating Purposes.
I WILLIAM NICHOLLS, of 23 Holborn, in the County of London, Gentleman,
do hereby declare the nature of this invention to be as follows:-
This invention has for its object the production of hoods or mantles for gas or
other burners which by the action of the flame of the burner are rendered
incandescent and thereby greatly increase the illuminating power of the flame.
According to my invention I impregnate the bood or mantle, which may be
made of any suitable fabric, with the solution of salts hereinafter specified, the
mantle being afterwards subjected to the heat of a flame in the ordinary manner so
that the fabric is consumed while the frame or skeleton, consisting chiefly of the
oxides of the metals employed, remains, and which when heated to incandescence
emits a powerful light.
The formula of the solution to which my invention relates and which I have
found to give excellent results in practice is as follows:
Zirconium nitrate
Calcium
"
Yttrium
Uranium
"
"
-
55 parts
45
3
"
"
0.5
"
The hood or mantle having been made of any suitable fabric to the desired form
is saturated in an aqueous solution made according to this formula and dried in
the ordinary manner, when it is fit for use, the first application of a flame consuming
the fibrous constituent and leaving only the frame or skeleton of metallic oxides
remaining.
Dated this 21st day of February 1896
пенз the Manufacture of Incandescence Bodies for
Illuminating Purposes.
I, WILLIAM NICHOLLS, of 23 Holborn, in the County of London, Gentleman,
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 has for its object the production of hoods or mantles for gas or
other burners which, by the action of the flame of the burner, are rendered
incandescent and thereby greatly increase the illuminating power of the flame.
[Price 8d.1

page_text: According to my invention I impregnate the hood or mantle, which may be
made of any suitable fabric, with the solution of salts hereinafter specified, the
mantle being afterwards subjected to the heat of a flame in the ordinary manner so
that the fabric is consumed while the frame or skeleton, consisting chiefly of the
oxides of the metals employed, remains and which, when heated to incandescence,
emits a powerful light.
The formula of the solution to which my invention relates and which I have
found to give excellent results in practice is as follows:
Zirconium nitrate
Calcium
Yttrium
Uranium
"
"
-
55 parts
45
"
-
3
"
0.5
"
The hood or mantle having been made of any suitable fabric to the desired form
is saturated in an aqueous solution made according to this formula and dried in the
ordinary manner when it is fit for use, the first application of a flame consuming
the fibrous constituent and leaving only the frame or skeleton of metallic oxides
remaining.
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 I
claim is :-
The manufacture of incandescence bodies for illuminating purposes impregnated
with substances named, substantially according to the formula above given.
Dated this 20th day of November 1896.
WHEATLEY & MACKENZIE,
40 Chancery Lane, London, W.C., Agents.