Improved Means of Increasing the Luminousness of Ignited Gas.
Year: 1889

page_text: Date of Application, 8th Mar., 1889
Specification Accepted, 13th Apr., 1839
COMPLETE SPECIFICATION.
Improved Means of Increasing the Luminousness of Ignited Gas.
I, JAMES MAOTEAR, of Victoria Mansions, Westminster, in the County of Middlesex,
Chemical Expert and Engineer, do hereby declare the nature of my said 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 relates to improved means of increasing the luminousness of
ignited gas, the Invention being a development of the appliances for such purpose
described in the Specification of my Patent No. 6811, dated the 20th day of May,
1886, and especially applicable to the well known Welsbach Incandescent Gas-
Lighting System.
The Invention has particular reference to the construction of the vehicle supporting
the earthy substances or other materials (hereinafter referred to as the "incandescence
materials") upon the heating to incandescence of which the enhanced luminiferous
effect is due, the device being generally termed or best known under the designation
of the "mantle," cap or hood (under the first of which names it is hereinafter
referred to) and being generally so made as to surround, surmount or be suspended
in the gas flame in such a manner as to be heated to incandescence thereby.
In the Specification of my said former Patent I have described a method of con-
structing the mantle of any required form, by winding cotton fibre or other suitable
fibrous material around a thin platinum wire, and then bending the latter into the
form of mantle required.
In accordance with the present improvements I construct the said mantle by
braiding platinum wire with cotton or other suitable fibrous material and sub-
sequently bending or otherwise forming the braided wire into the required form of
mantle, or by covering or braiding platinum wire with cotton or other fibrous
material & weaving the same into a fabric of the nature of wire gauze or into a
braid and subsequently moulding or otherwise forming such fabric or braid into
the required form of mantle, or by weaving plain or covered or braided platinum
wire with threads of cotton or other fibrous material into the required form of
mantle, or into a fabric or braid and subsequently moulding or otherwise forming
such fabric or braid into the required form of mantle. By constructing the mantle
according to such improvements the incandescence materials are better and more
efficiently supported.

page_text: The mantle thus formed may then be rendered suitable for its intended purpose
by being dipped into or otherwise impregnated or saturated with solutions of the.
incandescence materials hitherto proposed to be used for such purpose or with
such other means as may be suitable for the purpose, or the mantle during its
manufacture may be impregnated or saturated with such inaterials; or the cotton
or other fibrous material may be impregnated or saturated therewith before being
braided on or otherwise combined with the platinum wire or formed into the
mantle as herein before described but not so advantageously.
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
९
The manufacture of incandescence mantles and analogous devices used for increasing
the luminousness of ignited gas, from platinum wire and cotton or other suitable
fibrous material used or combined in the improved manner herein before described,
the mantle during or after its manufacture, or the fibrous material before the
manufacture of the mantle being impregnated or saturated in any usual or suitable
manner with solutions of suitable incandescence materials.
Datad this 7th day of March 1880
DAY, DAVIES & HUNT,
321, High Holborn, London, W.C.,
Agents for the Applicant.