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

page_text: Date of Application, 1st May, 1896
Complete Specification Left, 1st Feb., 1897-Accepted, 10th Apr., 1897
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 hood or mantle, which may be made
of any suitable fabric, with the solutions 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 chlorate
Ammonium nitrate
Uranium nitrate
250 parts.-
100
"
160
"
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 28th day of April 1896.
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 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.

page_text: According to my invention I impregnate the hood or mantle which may be made
of any suitable fabric, with the solutions 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 chlorate
Ammonium nitrate
Uranium nitrate
250 parts
100
"
160
"
"
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
1 claim is :-
The manufacture of incandescence bodies for illuminating purposes impregnated
with substances named substantially according to the formula above given.
1007
WHEATLEY & MACKENZIE,
40 Chancery Lane, London, W.C., Agents.
WHEATLEY & MACKENZIE,
40 Chancery Lane, London, W.C., Agents.