IMPROVED COMPOSITION OR ADMIXTURE FOR PEE- SERVING WALLS FROM DAMPNESS, AND FOR OTHER PURPOSES
Year: 1872

page_text: LETTERS PATENT to William Thwaites, of Oromwell Road, Brixton,
in the County of Surrey, and Eugène Fondeville and George Bertin,
both of Gaisford Street, Kentish Town, in the County of Middlesex,
for the Invention of "IMPROVED COMPOSITION OR ADMIXTURE FOR PEE-
SERVING WALLS FROM DAMPNESS, AND FOR OTHER PURPOSES.”
Sealed the 27th December 1872, and dated the 2nd July 1872.
PROVISIONAL SPECIFICATION left by the said William Thwaites,
Eugène Fondeville, and George Bertin at the Office of the
Commissioners of Patents, with their Petition, on the 2nd July
1872.
We, WILLIAM THWAITES, of Cromwell Road, Brixton, in the County
of Surrey, and EUGÈNE FONDEVILLE and GEORGE BERTIN, both of
Gaisford Street, Kentish Town, in the County of Middlesex, do hereby
declare the nature of the said Invention for "IMPROVED COMPOSITION OR

page_text: ADMIXTURE FOR PRESERVING WALLS FROM DAMPNESS, AND FOR OTHER PURPOSES,"
to be as follows:-
This Invention relates to an improved composition or admixture of
ingredients for application to or upon damp. or other walls and surfaces,
for the purpose of preserving them and for forming a body capable of
receiving paint, colour, or other coating.
The composition is made up by an admixture of, say, 5 parts coal tar
(after being deprived of its essential oils and reduced to a solid state,
2 parts gallipot, 2 parts mineral essence, th part carbonate of lime,
and /.th part oxide of iron, the proportions being increased or reduced
according to the degree of dampness, the position or the nature of the
wall or other surface to be operated upon.
By the use of the composition exterior of walls or other surfaces can
be made waterproof and be capable of receiving paints, colours, and
varnishes for the production of designs or ornamentations by the appli-
cation of a compound of, say, 2 parts wood spirit, and 1 part resin. If
the wall has to be whitewashed or lime coloured the last-mentioned
compound can be dispensed with.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Thwaites, Eugène Fondeville, and George
Bertin in the Great Seal Patent Office on the 2nd January 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, WILLIAM
THWAITES, of Cromwell Road, Brixton, in the County of Surrey, and
EUGENE FONDEVILLE and GEORDE BERTIN, both of Gaisford Street,
Kentish Town, in the County of Middlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Second day of July, in the year of our
Lord One thousand eight hundred and seventy-two, in the thirty-sixth
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto us, the said William Thwaites, Eugene Fondeville, and
George Bertin, Her special licence that we, the said William Thwaites,
Eugene Fondeville, and George Bertin, our executors, administrators,
and assigns, or such others as we, the said William Thwaites, Eugene

page_text: Fondeville, and George Bertin, our executors, administrators, and assigns,
should at any time agree with, and no others, from time to time and at
all times thereafter during the term therein expressed, should and
lawfully might make, use, exercise, and vend, within the United
Kingdom of Great Britain and Ireland, the Channel Islands, and Isle
of Man, an Invention for "IMPROVED COMPOSITION OR ADMIXTURE FOR PRE-
SERVING WALLS PROM DAMPNESS, AND FOR OTHER PURPOSES," upon the condition
(amongst others) that we, the said William Thwaites, Eugene Fondeville,
and George Bertin, our, or one of us, our executors or administrators, by
an instrument in writing under our, or one of our, or their, or one of their
hands and seals, should particularly describe and ascertain the nature of
the said Invention, and in what manner the same was to be performed,
and cause the same to be filed in the Great Seal Patent Office within
six calendar months next and immediately after the date of the said
Letters Patent.
NOW KNOW YE, that we, the said William Thwaites, Eugene
Fondeville, and George Bertin, do hereby declare the nature of our said
Invention, and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement
thereof, that is to say :-
This Invention relates to an improved composition or admixture of
ingredients for application to or upon damp or other walls and surfaces,
for the purpose of preserving them and for forming a body capable of
receiving paint, colour, or other coating.
The composition is made up by an admixture of, say, 5 parts coal tar
(after being deprived of its essential oils and reduced to a solid state),
2 parts gallipot, 2 parts mineral essence, 26th part carbonate of lime,
and th part oxide of iron, the proportions being increased or reduced
according to the degree of dampness, the position or the nature of the
wall or other surface to be operated upon.
By the use of the composition exterior or other surfaces of walls can
be made waterproof and be capable of receiving paints, colours, and
varnishes, for the production of designs or ornamentations by the appli-
cation of a compound of, say, 2 parts wood spirit, and 1 part resin. If
the wall has to be whitewashed or lime coloured the last-mentioned
compound can be dispensed with.

page_text: And having now described the nature of our said Invention and in
what manner the same is to be performed, we declare that we claim,
the improved composition or admixture for preserving walls from damp-
ness and for other purposes, substantially as herein-before described.
In witness whereof, I, the said William Thwaites, for myself and
on behalf of the said Eugene Fondeville and George Bertin, have
hereunto set my hand and seal, this Twenty-seventh day of
December, in the year of our Lord One thousand eight hundred
and seventy-two.
WILLIAM THWAITES. (L.S.)