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

page_text: Date of Application, 8th Aug., 1890
Complete Specification Left 8th June 1897-Accepted 10th July 1897
Complete Specification Left. 8th June 1897-Accepted 10th July 1897
[Communicated from abroad by CHARLES SCHMID, of 47 Boulevard Anspach,
Brussels, Chemist.]
Improvements in the Manufacture of Incandescence Bodies for
Illuminating Purposes.
I, WILLIAM HUMPHREY WHEATLEY, of the Firm of Wheatley & Mackenzie,
Engineers and Patent Agents, of 40 Chancery Lane, in the County of London,
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 incan-
descent 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.
According to my invention I make a solution of Zirconium Nitrate, Calcium
Chloride, Aluminium Nitrate, Ammonium Nitrate Strontium Nitrate and
Rubidium Nitrate.
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 8th day of August 1896
WHEATLEY & MACKENZIE,
40 Chancery Lane, W.C., Agents.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Incandescence Bodies for
Illuminating Purposes.
I, WILLIAM HUMPHREY WHEATLEY, of the Firm of Wheatley & Mackenzie,
Engineers and Patent Agents, of 40 Chancery Lane, in the County of London,
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 follow-
ing statement:-
This invention has for its object the production of hoods or mantles for gas or

page_text: other burners which by the action of the flame of the burner are rendered incan-
descent 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 the 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 incan-
descence 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 Chloride
Aluminium Nitrate
Ammonium Nitrate
Strontium Nitrate
Rubidium Nitrate
وو
40.0 parts.
15.0
10.0
29.0
"
5.0
1.0
33
"3
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
invention 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 8th day of June 1897.
WHEATLEY & MACKENZIE;
40 Chancery Lane, London, W.C., Agents.