The Manufacture of Bricks, Slabs, Blocks, Flagstones, and the like.
Year: 1899

page_text: Date of Application, 24th Jan., 1899
Complete Specification Left, 13th Oct., 1899-Accepted, 2nd Dec., 1899
PROVISIONAL SPECIFICATION.
The Manufacture of Bricks, Slabs, Blocks, Flagstones, and the like.
We, GEORGES ALEXIS BOISSELIER, of Puteaux (Seine), Merchant, and VICTOR
CONSTANT LAURENT, of Paris, Engineer, both in the Republic of France, do hereby
declare the nature of this invention to be as follows:-
This invention relates to the manufacture of bricks, slabs, blocks, flagstones and
the like designed for paving courts, stables, bridges and for like purposes.
According to the invention we amalgamate chemical products which form
between them a special aggregate. This aggregate, when moistened with a
liquid which varies only according to the resistance or the homogeneity to be
obtained, has the specific character of the chlorides of zinc, lead or magnesium
proper to the material to be agglomerated.
We manufacture and mix by our process with the sub or by-products of stone,
wood, coal, earthenware, etc., products having considerable resistance. Our
mixture and our liquids are therefore taken as a type of concentration.
By spreading and diluting our materials and liquids we obtain products which
replace with great advantage in their applications the materials of stone and wood
at present employed.
By employing the same bases varying as above mentioned in their titration
alone we also produce for example by agglomeration of earthenware, grindstone
manufactories etc., and even gravel, sand, earths etc., bricks or blocks which when
employed in building, replace with advantages the natural freestone and all
materiais which are at present employed.
For making our agglomerates without compression or ramming we employ, as
above mentioned, a mixture of chemical products forming the aggregate properly
so called, the formula of which is as follows:-
This composition when well mixed and pulverized either by hand or by any
chemical means, such as a mill, mixer, etc., forms a white powder which can be
coloured according to the shade which it is desired to give the agglomerate of the
different products to be made.
Before the addition of the sub or by-products this composition is diluted with
a liquid, differences in titration alone of which give to the agglomerate a weak
medium or strong resistance according to the objects to be attained.
The composition of this liquid is as follows.-About 16% by weight of mag-
nesium chloride is dissolved in a solution of 25° Bé. hydrochloric acid. About
an equal quantity of sulphate of zinc 12° Beaumé is added to this solution as
also 1% of calcined alum. The whole is completely dissolved and decanted and
should have a strength for materials of great resistance of 35° Beaumé, 21° Beaumé
for a medium resistance and for a weak resistance 15° Beaumé.

page_text: By mixing therefore the aggregate with this liquid obtained as above described
in proportions which can vary in weight from 35 to 75% of the aggregate to be
diluted, we form a liquid paste to which we can add, according to the material
to be formed from 1 to 80 parts by volume of the sub-product to be agglomerated.
This mixture prepared as above described and added to the sub-product to be
agglomerated forms a composition sufficiently plastic to be poured or introduced
into moulds of wood, plaster or other material suitable for the different objects
or materials which it is desired to manufacture for example, bricks, paving
stones, blocks, etc., or for any moulding or sculpture desired.
Dated this 24th day of January 1899.
2.
G. F. REDFERN & Co..
4, South Street, Finsbury, London, Agents for the Applicants. ·
The Manufacture of Bricks, Slabs, Blocks, Flagstones, and the like.
We, GEORGES ALEXIS BOISSELIER, of Puteaux (Seine), Merchant, and VICTOR
CONSTANT LAURENT, of Paris, Engineer, both in the Republic of France, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:-
This invention relates to the manufacture of bricks, slabs, blocks, flagstones and
the like designed for paving courts, stables, and bridges and for like. purposes.
According to the invention. we amalgamate- chemical products which form.
between them a special aggregate. This aggregate, when moistened with a
liquid which varies only according to the resistance or the homogeneity, to, be
obtained, has the specific character of the chlorides of zinc, lead or magnesium
proper to the material to be agglomerated.
We manufacture and mix by our process with the sub or by-products of stone,
wood, coal, earthenware co., products having considerable resistance... Our
mixture and our liquids are therefore taken as a type of concentration.
By spreading and diluting our materials" and liquids we obtain products which
replace with great advantage in their applications the materials of stone and wood
at present employed.
.
r.m
By employing the same bases varying as above mentioned in their titration
alone we also produce for example by agglomeration of by-products earthenware
and grindstone manufactories, etc., and even gravel, sand, earths etc., bricks or
blocks which when employed in building, replace with advantages the natural
freestone and all materials which are at present employed.
For making our agglomerates without compression or ramming we employ,, as
above mentioned, a mixture of chemical products forming the aggregate properly
so called, the formula of which is. as follows:-
Carbonate of lead (PbO,CO₂)
Carbonate of magnesium (MgOCO₂)
Calcined alumina (A1, 03)
Pulverized felspar
Sodium hydrate (Na O, HO)
2
87
9
1
I

page_text: chemical means, such as a mill, mixer, etc., forms a white powder which can be
coloured according to the shade which it is desired to give the agglomerate of the
different products to be made.
Before the addition of the sub or by-products this composition is diluted with
a liquid, differences in titration alone of which give to the agglomerate a weak
medium or strong resistance according to the objects to be attained.
The composition of this liquid is as follows, About 16% by weight of mag-
nesium chloride is dissolved in a solution of 25° Bé. hydrochloric acid. About
an equal quantity sulphate of zinc 12° Beaumé is added to this solution as
also 1% of calcined alum. The whole is completely dissolved and decanted and
should have a strength for materials of great resistance of 35° Beaumé, 21° Beaumé
for a medium resistance and for a weak resistance 15° Beaumé.
By mixing therefore the aggregate with this liquid obtained as above described
in proportions which can vary in weight from 35 to 75% of the aggregate to be
diluted, we form a liquid paste to which we can add, according to the material
to be formed from 1 to 80 parts by volume of the sub-product to be agglomerated.
This mixture prepared as above described and added to the sub-product to be
agglomerated forms a composition sufficiently plastic to be poured or introduced
into moulds of wood, plaster or other material suitable for the different obiects
or materials which it is desired to manufacture for example, bricks, paving
stones, blocks, etc., or for any moulding or sculpture desired.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is:-
The manufacture of bricks, slabs, blocks, flagstones, and the like from sub
or by-products of stone, wood, coal, earthenware, gravel, sand, earths, etc., by
the amalgamation of a mixture or paste as described in the first formula and of a
liquid necessary for the mixture, for the formation, by its combination, of an
hydro-acid of lead and of acetate of magnesia which, although added to the
sub-products above indicated, can assume the greatest hardness and resistance and
a texture of the finest homogeneity, the proportions and the nature of the chemical
products being modified as required without departing from the principle of the
process, all substantially as herein before described.
Dated the 13th day of October 1899.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.