Improvements in Mantles for Incandescence Gas Lighting.
Year: 1895

page_text: Date of Application, 21st Dec., 1895
Complete Specification Left, 19th Sept., 1896-Accepted, 7th Nov., 1896
PROVISIONAL SPECIFICATION.
Improvements in Mantles for Incandescence Gas Lighting.
1, ANDREW TAYLOR, Master Mariner, of 261 Dumbarton Road, in the City of
Glasgow, do hereby declare the nature of this invention (which invention has been
in part communicated to me by William Sommerville Taylor, Engineer, 8.8. Alaska,
presently on a voyage to Buenos Ayres, Argentine Republic, and is in part my
own invention) to be as follows:-
.
This invention has for its object the economical production of mantles for
incandescence gas lighting and the rendering of such mantles less fragile than as
generally made.
The mantle before burning is composed of woven or knitted cotton or other
fabric made up in the usual hood shape. This is immersed in a strong solution in
water of oxide, nitrate or sulphate of aluminium, ammonium dichromate and zine
nitrate in admixture the proportion of the ingredients of the solution being prefer-
ably about 70, 20 and 10 per cent. respectively.
=
The mantle is then washed in a dilute solution of nitric acid or ammonium nitrate.
Whilst yet damp the mantle is dusted over with sulphur or gunpowder in a fine
state of subdivision, then dried and burned..
To permit of handling, the mantle may be dipped in collodion or other suitable
varnish which is subsequently burned off in using the mantle.
In the production of the mantle the aluminium salts may be replaced by salts of
beryllium, the ammonium dichromate by titanium salts and the zinc nitrate by
manganese nitrate.
0.1 1
1005
WALLACE FAIRWEATHER,
Chartered Patent Agent,
62 St. Vincent Street, Glasgow, Agent for the Applicant.

page_text: dichromate and zinc nitrate in admixture the proportion of the ingredients of the
solution being preferably about 70, 20 and 10 per cent. respectively. The mantle
thereafter may be dusted over with sulphur or gunpowder in a fine state of
subdivision, then dried and burned.
To permit of handling, the mantle may be dipped in collodion or other suitable
varnish which is subsequently burned off in using the mantle.
In the production of the mantle the aluminium salts may be replaced by salts of
beryllium, the ammonium dichromate by titanium salts and the zinc nitrate by
manganese nitrate.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1. A mantle for incandescence gas lighting composed of suitable fabric treated_
substantially as described.
2. A mantle for incandescence gas lighting composed of a fabric dipped in a
solution of oxide, nitrate or sulphate of aluminium in admixture with ammonium
dichromate and zinc nitrate or the specified equivalents of these salts, substantially
as described.
3. In the production of mantles for incandescence gas lighting the employment
of a dipping solution composed of oxide uitrate or sulphate of aluminium, in
admixture with ammonium dichromate and zinc nitrate or the specified equivalents
of these salts, substantially as described.
Tinted this 19th day of Santambor 1206
WALLACE FAIRWEATHER,
Of the Firm of Cruikshank & Fairweather, Chartered Patent Agents,
62 St. Vincent Street, Glasgow, Agent for the Applicant.