Improvements in the Manufacture of Bricks, Tiles, and the like.
Year: 1896

page_text: Date of Application, 10th Nov., 1896
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Bricks, Tiles, and the like.
We, ALBERT WILLIAM FLUDDER, of Tunnels Lane, Great Shelford, in the
County of Cambridge, Brick Manufacturer, and GEORGE HARDING INNES, of
Larch Cottage, London Road, Hitchin, in the County of Herts Agricultural
Implement Manufacturer, do hereby declare the nature of this invention to be
as follows:-
This invention relates to improvements in the manufacture of bricks of all
kinds, tiles and other like building materials the object to produce such goods
more economically than hitherto and at the same time the bricks and other
articles manufactured according to our invention possess the advantage of not
being liable to shrink or warp in burning.
In carrying out our invention we mix and combine chalk marl and sand or
ground flint in proportions varying according to the class of goods to be pro-
duced. For example in the manufacture of fire bricks and glazed building bricks
we have found that in the former case one part of chalk marl and three parts of
sand, and in the latter case six parts of chalk marl to five parts of sand give good
results.
The chalk marl after being thoroughly dried is ground in a suitable mill and
the sand being added the ingredients are moistened by the addition of a sufficient
quantity of water to make the materials bind in which condition the semi-
plastic compound thus formed is passed through a suitable mixing machine so
as to reduce the compound to a honiogeneous state which is suitable to be moulded
or pressed into bricks, tiles or other articles in any well known manner.
For ordinary building bricks we usually add to the chalk marl and sand, a
quantity of blue gault or brick earth according to the quality of brick required.
Dated the 10th day of November 1896.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Bricks, Tiles, and the like.
We, ALBERT WILLIAM FLUDDER, formerly of Tunnels Lane, Great Shelford, in
the County of Cambridge, now of 23, Willis Road, Mill Road, Cambridge, in the
County of Cambridge, Brick Manufacturer, and GEORGE HARDING INNES, of Larch
Cottage, London Road, Hitchin, in the County of Herts Agricultural Implement
Manufacturer, 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:-
This invention relates to improvements in the manufacture of bricks of all
kinds, tiles and other like building materials the object being to produce such goods

page_text: -
more economically than hitherto and at the same time the bricks and other
articles manufactured according to our invention possess the advantage of not
being liable to shrink or warp in burning and are more or less refractory.
In carrying out our invention we mix and combine chalk marl and silica in
the form of sand or ground flint or the like in proportions varying according to
the class of goods to be produced. For example in the manufacture of fire bricks
and glazed building bricks we have found that in the former case about one part
of chalk marl and from three to five parts of silica, and in the latter case about
six parts of chalk marl to about five parts of silica give good results.
The chalk marl after being thoroughly dried is ground in a suitable mill to a
fine powder and the silica being added the ingredients are thoroughly, mixed and
moistened by the addition of a sufficient quantity of water to make the materials
bind in which condition the semi-plastic compound thus formed is passed through
a suitable mixing machine so as to reduce the compound to a homogeneous state
which is suitable to be moulded or pressed into bricks, tiles or other articles in
any well known manner and after being dried are burnt in a kiln in the ordinary
way.
For ordinary building bricks a small quantity of blue gault may be added to the
marl and silica whereby the bricks can be burnt at a lower temperature.
Having now particularly described and ascertained the nature of our said.. in-
vention and in what manner the same is to be performed, we declare that what
we claim is:-
1. The manufacture of bricks, tiles and the like by mixing and combining
chalk marl and silica in the proportions and in the manner substantially as
described.
2. Bricks, tiles and the like manufactured from a compound of chalk, marland'
silica, substantially as herein before described.
Dated the 30th day of Tuly 1907
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.