Improvements in the Manufacture of Building Material for Architectural and other Purposes, and of a Composition for Use in connection therewith.
Year: 1889

page_text: Date of Application, 7th Nov., 1889
Complete Specification Left, 7th Aug., 1890-Accepted, 13th Sept.. 1890
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Building Material for
Architectural and other Purposes, and of a Composition for
Use in connection therewith.
[, HARRY ARTHUR BASSETT, of 383, Bearwood Road, Hagley Road, Edgbaston,
Birmingham, in the County of Warwick, Plasterer, do hereby declare the nature of
this invention to be as follows:-
My invention chiefly relates to a new composition for use in the manufacture of
building material for various purposes, the said composition serving to produce the
binding and hardening of the substances forming the bulk or aggregate of the said
building material.
In the preparation of the new composition I mix glue and water under a moderate
heat so as to produce a viscous fluid, and then add a quantity of unboiled oil (pre-
ferably rape or linseed oil) the proportion being about 200 parts of viscous fluid and
40 parts of oil. After the oil has been thoroughly intermixed with the fluid I
add, say, 12 parts of carbonate of soda and then thoroughly agitate the mixture for
about half an hour maintaining the heat meanwhile. The mixture or solution can then
be allowed to cool.
In manufacturing, say, artificial stone, tiles or the like I take 6 parts, more or less,
of the composition and dissolve it in, say, 16 parts of water to which I afterwards
add 9 parts of borax. I then mix one part of the diluted mixture so produced
with 6 parts of water, one part of white china clay, and sufficient fine plaster of Paris
to make the whole into a stiff paste. This paste will set as hard as stone and is
capable of receiving a high polish. The paste so produced may be pressed or moulded
into ornamental shapes and forms or into plain tablets.
It is desirable that the composition for covering walls or ceilings and for similar
purposes should be in a dry pulverized condition and I therefore advantageously mix
the composition with other substances, as follows:-6 parts of the solution prepared
as already described and dissolved, in 16 parts of water; 96 parts of plaster of Paris
and one part of air slaked lime. This mixture is dried or heated on a kiln or stove
until the moisture bas evaporated or, if time is not of importance, it is allowed to
stand until reduced to a dry powder and I then add thereto and mix therewith 9 parts
of powdered borax.
In the preparation of plaster for walls, ceilings, lathwork, and the like I employ the
following ingredients in quantities and proportions about as follows and form them
into a paste-1 part of the powdered composition produced as before described,
14 parts of plaster of Paris, 40 parts of ordinary building sand, 14 parts of wood
dust, fibre or other similar material and sufficient water to formn the paste. Such
paste may then be applied to walls, ceilings or lathwork or similar objects as a first
coat and will set very hard. For the second or finishing coat I take 10 parts of the
powdered mixture, 112 parts of fine plaster of Paris, 140 parts of fine sharp sand,
1 part of powdered borax, 10 parts of white china clay and sufficient water to form a
moderately stiff paste.
For cornices, centreflowers and enrichments I take one part of the powdered
mixture, one part of white china clay, 2 parts of carbonate of lime, 12 parts of fine
plaster of Paris, 4th part of powdered borax, and water to form a paste and then
mould or shape the same in any suitable manner.

page_text: COMPLETE SPECIFICATION.
Improvements in the Manufacture of Building Material for
Architectural and other Purposes, and of a Composition for
Use in connection therewith.
I, HARRY ARTHUR BASSETT, of 383, Bearwood Road, Hagley Road, Edgbaston,
Birmingham, in the County of Warwick, Plasterer, 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:-
My invention chiefly relates to a new composition for use in the manufacture of
building material for various purposes, the said composition serving to produce the
binding and hardening of the substances forming the bulk or aggregate of the said
building material.
In the preparation of the new composition I mix glue and water under a moderate
heat so as to produce a viscous fluid, and then add a quantity of unboiled oil
(preferably rape or linseed oil) the proportions being about 200 parts of viscous fluid
and 40 parts of oil. After the oil has been thoroughly intermixed with the fluid I
add, say, 12 parts of carbonate of soda and then thoroughly agitate the mixture for
about half an hour maintaining the heat meanwhile. The mixture or solution can then
be allowed to cool.
In manufacturing, say, artificial stone, or tiles or other articles I take 6 parts, more
or less, of the binding and hardening composition and dissolve it in, say, 16 parts of
water to which I afterwards add 9 parts of borax. I then mix one part of the
mixture so produced with 6 parts of water, one part of white china clay, and sufficient
fine plaster of Paris to give to the mass the consistency of a stiff paste. This plastic
compound may be pressed or moulded into ornamental shapes and forms or into plain
tablets; it will set very hard, and is capable of receiving a high polish.
It is desirable that the composition used in the preparation of plaster for covering
walls or coilings and for similar purposes should be in a dry pulverized condition 30
that it can be readily transported and I therefore advantageously mix the composition
with other substances, as follows:-6 parts of the solution prepared as already
described and dissolved in 16 parts of water; 96 parts of plaster of Paris and one
part of air slaked lime. This mixture is reduced to a dry powder by being dried or
heated on a kiln or stove until the moisture has evaporated, and I then add thereto
and mix therewith 9 parts of powdered borax.
In the preparation of plaster for walls, ceilings, lathwork, and the like I employ the
following ingredients in quantities and proportions about as follows, and form them
into a paste-1 part of the powdered composition produced as before described,
14 parts of plaster of Paris, 40 parts of ordinary building sand, 14 parts of wood-
dust, fibro or other similar material and sufficient water to form the paste. Such
paste may then be applied to walls, ceilings or lathwork or similar objects as a first
coat and will set very hard. For the second or finishing coat 1 take 10 parts of the
powdered composition, 112 parts of fine plaster of Paris, 140 parts of fine sharp sand,
10 parts of white china clay or pulverized bath stone and sufficient water to form a
moderately stiff pasto.
For cornices, centre-flowers and enrichments I take one part of the powdered
composition, one part of white china clay, 2 parts of carbonate of lime, 12 parts of
fine plaster of Paris, and water to form a paste and then mould or shape the same in
any suitable manner.
The proportions above given are those which I have found to give good results in
practice but it will be obvious that they may be somewhat varied.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1
11

page_text: unboiled oil and carbonate of soda combined in the manner and in about the
proportions, substantially as stated, for the purposes, specified.
2. The compound for the manufacture of artificial stone or of tiles or other articles
consisting of china clay, plaster of Paris, and a solution of the composition referred
to in the preceding claiming clause combined with borax, substantially as described.
3. The binding and hardening composition referred to in the first claiming clause
combined with plaster of Paris, slaked lime, borax and water, and reduced to a
pulverulent condition, for the purpose specified.
Dated the 7th day of Annet 1800
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.