Year: 1897

page_text: J, CHARLES HANNAY, Director of the Caribbec Manufacturing Company Limited,
4, York Street, Glasgow, N.B., Carib Silicate Manufacturers, do hereby declare the
nature of this invention to be as follows:.
This invention relates to improvements in fire-bricks, slabs or tiles.
It is particularly applicable for the lining of steam boilers and other furnaces,
ovens, retorts and kilns. We make the said firebricks from a mineral diatomaceous
earth such as is found in the Island of Barbadoes, West Indies, commonly called
Barbadoes carth. We have found from experiments that this earth is very
applicable for the particular purpose viz. the manufacture of firebricks and the
like and we claim to be the originators of the application of this earth to this
particular and useful purpose.
The chemical analysis of the said mineral diatomaceous earth is as follows:-
100.00
But we do not limit ourselves to an earth having this precise analysis because
we may make or manufacture a similar earth having an analysis slightly varied.
In the use of the said earth, or a similar manufactured earth, for firebricks and
the like, we prefer to mix a certain proportion of fireclay with it say from 1%
to 25% of fireclay; this gives strength to the bricks; or we may add asbestos or
the like in a somewhat similar proportion.
Or we may mix paper or other pulp in a somewhat similar proportion, for the
purpose of the production of a light brick so that when the brick is fired the pulp
is burned out and leaves the brick porous and very light.
Dated this 7th don of Dean has 1907

page_text: 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 relates to improvements in fire-bricks, slabs or tiles.
It is particularly applicable for the lining of steam boilers and other furnaces,
ovens, retorts and kilns. We make the said firebricks from a mineral diatomaceous
earth auch as is found in the Island of Barbadoes, West Indies, commonly called
Barbadoes earth. We have found from experiments that this earth is very
applicable for the particular purpose ri. the manufacture of firebricks and the
like and we claim to be the originators of the application of this earth to this
particular and useful purpose.
The chemical analysis of the said mineral diatomaceous earth is as follows :-
The chemical analysis of the said mineral diatomaceous earth is as follows :-
Silica
Aluminu
Iron Peroxide
Linie
Volatile and Organic Matter
-
80.20
6.25
1.78
-
2.20
9.57
100.00
But we do not limit ourselves to an earth having this precise analysis because
we may make or manufacture a similar earth having an analysis slightly varied.
In the use of the said earth, or a similar manufactured earth, for firebricks and
the like, we prefer to mix a certain proportion of fireclay with it say from 1%
to 25% of fireclay; this gives strength to the bricks; or we may add asbestos or
the like in a somewhat similar proportion.
Or we may mix paper or other pulp in a somewhat similar proportion, for the
purpose of the production of a light brick so that when the brick is fired the pulp
is burned out and leaves the brick porous and very light.
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:-
In the manufacture of fire bricks, slabs or tiles, the employment of a mineral
diatomaceous earth of a chemical analysis substantially as described, to which is
preferably added fireclay, asbestos or like material in the approximate proportions
as set forth.
Dated this 8th day of Santambor 1909
JOHNSONS,
Applicant's Agents, 115, St. Vincent Street, Glasgow.