IMPROVEMENTS IN THE MANUFACTURE OF COVERING MATERIALS FOR HOUSES AND OTHER STRUCTURES AND SURFACES
Year: 1853

page_text: LETTERS PATENT to Thomas Grahame, of Fatton Hall, Welling-
borough, Northampton, for the Invention of "IMPROVEMENTS IN
THE MANUFACTURE OF COVERING MATERIALS FOR HOUSES AND OTHER
STRUCTURES AND SURFACES."
Sealed the 15th July 1853, and dated the 19th May 1853..
PROVISIONAL SPECIFICATION left by the said Thomas Grahamo
at the Office of the Commissioners of Patents, with his Petition,
on the 19th May 1853.
I, THOMAS GRAHAME, of Hatton Hall, Wellingborough, Northamp-
ton, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN THE MANUFACTURE OF COVERING MATERIALS FOR HOUSES AND
OTHER STRUCTURES AND SURFACES" to be as follows:-
This Invention consists of combining india-rubber (caoutchouc) and
gutta-percha with wire cloth in such manner that the interstices and
surfaces of the wire cloth are covered over by a thin film of india-
rubber, by which means a waterproof covering material is obtained,
which is very strong and light.

page_text: ⋅
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Thomas Grahame in the Great Seal Patent Office,
on the 16th November 1853.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,
THOMAS GRAHAME, of Hatton Hall, Wellingborough, Northampton,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Nineteenth day of May, in the year
of our Lord One thousand eight hundred and fifty-three, in- the
sixteenth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Thomas Grahame, Her special licence
that I, the said Thomas Grahame; my executors, administrators, and
assigns, or such others as I, the said Thomas Grahame, my 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 "IMPROVEMENTS
IN THE MANUFACTURE OF COVERING MATERIALS FOR HOUSES AND OTHER
STRUCTURES AND SURFACES," upon the condition (amongst others) that I,
the said Thomas Grahame, by an instrument in writing under hand
ånd seal, 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.
my
NOW KNOW YE, that I, the said Thomas Grahame, do hereby
declare the nature of the 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 consists of combining india-rubber (caoutchouc) and
gutta-percba with wire cloth in such manner that the interstices and
surfaces of the wire cloth are covered over by a thin film of india-rubber

page_text: or gutta-percha, by which means a waterproof covering material is
obtained, which is very strong and light.
Having thus stated the nature of my said Invention, I will proceed
to describe the means of performing the same. The india-rubber or
the gutta-percha may be used either in sheets or in the dissolved state.
If sheet india-rubber or gutta-percha be used the same should be very
thin, and a sheet should be placed on either side of the wire cloth, the
surfaces which come together being first coated with india-rubber or
gutta-percha cement, and such sheets, with the wire cloth between
them, are then to be submitted to pressure, which is best done by
passing them through between pressing rollers; or, in place of using
sheets of the covering material, a solution of india-rubber or of gutta-
percha may be applied to the wire cloth by incans of a brush, allowing
time for the evaporation of the solvent used, before applying succeeding
coats of the dissolved matter. By these means the interstices of the
wire cloth quickly become closed, and the desired thickness of coating
obtained.
Having thus described the nature of my said Invention, and the
manner of performing the same, I would have it understood that what
I claim is, the coating and filling up the interstices of wire cloth with
india-rubber and gutta-percha, as herein explained, thus protecting the
wire cloth from corrosion, and rendering it impervious to air or gasses,
and to water and any liquid.
In witness whereof, I, the said Thomas Grahanie, have hereunto
set my hand and seal, this Tenth day of November, in the year
of our Lord One thousand eight hundred and fifty-three.
Witness,
S. CARPMAEL..
THOMAS GRAHAME. (..s.)