Improvements in Incandescence Baskets.
Year: 1898

page_text: Date of Application, 27th June, 1898
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PROVISIONAL SPECIFICATION.
Improvements in Incandescence Baskets.
I, JOHN IMRAY, of Birkbeck Bank Chambers, Southampton Buildings, Chancery
Lane, in the County of London, Consulting Engineer and Chartered Patent Agent,
do hereby declare the nature of this invention (as communicated to me from abroad
by Julius Moeller, formerly of 14, Palmer Street, Westminster, in the County of
London, but at present of Grand Hotel d l'Athénée, 15, Rue Scribe, Paris, France,
Manager,) to be as follows:-
This invention relates to incandescent baskets of the kind employed by Clamond
and others, which are made by weaving or netting together threads of refractory
material produced by squeezing a paste of magnesia or other earth through
a die. The object of the present invention is to obtain the refractory material
not only in a state of fine subdivision but also in such a condition that the finely
subdivided particles are themselves porous, the result being that the basket pro-
duced from these is very light and when it is incandesced is much more luminous
than baskets consisting of particles which, however finely subdivided, are not
themselves porous.
In order to manufacture a basket made up of porous particles of refractory
material, some organic substance having cellular structure, such, for instance, as
cotton or pith, is impregnated with solution of a salt of the refractory earth and is
incinerated at as low a temperature as possible. The ashes are passed through
a fine sieve by rubbing with a brush. An organic cellular substance such as
starch, or a mixture of starch with gluten or gelatine, or wheat flour is mixed with
solution of a salt of the refractory earth and warmed until it thickens; it is then
thoroughly mixed and incorporated with the sifted ashes above described so as to
form a paste. This paste is squeezed through a die forming flexible threads
which are woven or netted together to form incandescence baskets. These baskets
are heated in a closed chamber or in a reducing medium so as to carbonise the
organic ingredients, and are then baked at a high temperature in an oxidising
medium or flame so that the carbon is burnt off, and the salt is decomposed, leaving
a basket of the earthy matter in a porous condition.
Dated this 27th day of June 1898.
ABEL & IMRAY,
Agents for the Applicant.
I, JOHN IMRAY, of Birkbeck Bank Chambers, Southampton Buildings, Chancery
Lane, in the County of London, Consulting Engineer and Chartered Patent Agent,
[Price 8d.1

page_text: do hereby declare the nature of this invention (as communicated to me from abroad
by Julius Moeller, formerly of 14, Palmer Street, Westminster, in the County of
London, but at present of Grand Hotel d l'Athénée, 15, Rue Scribe, Paris, France,
Manager,) 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 incandescent baskets of the kind employed by Clamond
and others, which are made by weaving or netting together threads of refractory
material produced by squeezing a paste of magnesia or other earth through
a die. The object of the present invention is to obtain the refractory material
not only in a state of fine subdivision but also in such a condition that the finely
subdivided particles are themselves porous, the result being that the basket pro-
duced from these is very light and when it is incandesced is much more luminous
than baskets consisting of particles which, however finely subdivided, are not
themselves porous.
In order to manufacture a basket made up of porous particles of refractory
materials some organic substance having cellular structure, such for instance as
cotton or pith, is impregnated with solution of a salt of the refractory earth and is
incinerated at as low a temperature as possible. The ashes are passed through
a fine sieve by rubbing with a brush. An organic substance such as
starch, or a mixture of starch with gluten or gelatine, or wheat flour is mixed with
solution of salt of the refractory earth and warmed until it thickens, it is then
thoroughly mixed and incorporated with the sifted ashes above described so as to
form a paste. This paste is squeezed through a die forming flexible threads
which are woven or netted together to form incandescence baskets. These baskets
are heated in a closed chamber or in a reducing medium so as to carbonise the
organic ingredients, and are then baked at a high temperature in an oxidising
medium or flame so that the carbon is burnt off and the salt is decomposed leaving
a basket of the earthy matter in a porous condition.
Having now particularly described and ascertained the nature of this
invention and in what manner the same is to be performed, I declare that what
I claim is —
The herein described manufacture of porous incandescence baskets by impregnat-
ing organic cellular material with solution of a salt of refractory earth, incinerating
the same and reducing the product to fine powder mixing the powder with organic
agglutinating substance impregnated with solution of salt of refractory earth, to
form a paste, pressing this paste through a die, weaving or netting together the
filaments so produced to form baskets, carbonising the organic ingredients in a
reducing medium, and finally baking the baskets at high temperature in an
oxidising medium or in flame.
Dated the 27th day of March 1899