Improvements in the Manufacture of Silica Bricks or other Highly Refractory Bricks.
Year: 1896

page_text: Date of Application, 29th May, 1896
Complete Specification Left, 18th Feb., 1897-Accepted, 10th Apr., 1897
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Silica Bricks or other Highly
Refractory Bricks.
We JOSEPH DIXON of Oughtibridge, Manufacturer, and ALLEYNE REYNOLDS
of Bolsover Hill near Sheffield, Manager in Steel Works, both in the County of
York do hereby declare the nature, of our invention to be as follows:-
Our invention relates to improvements in the manufacture of firebricks for
resisting extremely intense heats.
In carrying out our invention we grind gannister or other suitable silicious
material in the usual manner, and we add thereto a proportion which may be varied
of "halfstuff," "cellulose," or other fibrous material.
This composition is then moulded into bricks the fibrous material acting as a
binding agent during this stage of manufacture.
After burning the brick is of a somewhat fibrous structure, and is also porous
owing to the destruction of the fibrous material in the process of burning.
By this process of manufacture the addition of lime is not imperative and a more
highly refractory brick is produced than heretofore; the porous structure of the
brick renders it less liable to destructive expansion when heated.
Dated the 28th day of May 1896
ROBT. F. DRURY,
Agent for Applicants.
COMPLETE SPE
ATION.
Improvements in the Manufacture of Silica Bricks or other Highly
Refractory Bricks.
We JOSEPH DIXON of Oughtibridge, Manufacturer, and ALLEYNE REYNOLDS
of Bolsover Hill near Sheffield, Manager in Steel Works, both in the County of
York 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
following statement :-
Our invention relates to improvements in the manufacture of fire bricks for
resisting extremely intense heats.
In carrying out our invention we grind gannister or other suitable silicious
material in the usual manner and we add thereto a variable proportion of what
is known in paper making as "halfstuff" "cellulose" or other like fibrous
material.
This composition is then moulded into bricks, the fibrous material acting as a
binding agent during this stage of the manufacture.
After the process of burning, the brick is of a somewhat fibrous structure, and it
is also porous owing to the destruction of the fibrous material by heat during the
process of burning.

page_text: By our improved process of manufacture the addition of lime, is not imperative,
and a more highly refractory brick than hitherto is produced; the porous structure
of the brick also renders it less liable to destructive expansion when heated.
Having now particularly described and ascertained the nature of our invention
and in what manner the same is to be performed, we declare that what we
claim, is :-
1. The improvements in the manufacture of highly refractory bricks, by the
addition of fibrous material, as herein before described.
2. In the manufacture of firebricks, mixing "halfstuff" "cellulose" or other
suitable fibrous material with ground silicious material, forming such combination
into bricks, and burning them in the usual or other manner as herein before
described.
1907
ROBT. F. DRURY, C.P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicants..