A NEW OR IMPROVED COMPOSITION OR CEMENT FOR FILLING IN LETTERS OR OTHER RECESSED WORK IN MARBLE, STONE, AND OTHER MATERIALS, ALSO APPLICABLE FOR CEMENTING MATERIALS TOGETHER.
Year: 1880

page_text: LETTERS PATENT to William Forsyth, of the City and County of Worcester,
for an Invention of "A NEW OR IMPROVED COMPOSITION OR CEMENT FOR
FILLING IN LETTERS OR OTHER RECESSED WORK IN MARBLE, STONE, AND
OTHER MATERIALS, ALSO APPLICABLE FOR CEMENTING MATERIALS TOGETHER.'
"
PROVISIONAL SPECIFICATION left by the said William Forsyth at the
Office of the Commissioners of Patents on the 27th October 1880.
WILLIAM FORSYTH, of the City and County of Worcester. "A NEW OR
IMPROVED COMPOSITION OR CEMENT FOR FILLING IN LETTERS OR OTHER RECESSED
WORK IN MARBLE, STONE, AND OTHER MATERIALS, ALSO APPLICABLE FOR
CEMENTING MATERIALS TOGETHER."
"
The object of this Invention is to provide a convenient and efficient cementitious
material for filling in letters or other recessed work in marble, stone, and other
material in any desired colour, and which shall also be generally applicable to
the cementing together of stone or metals, or one with the other.
According to my Invention, I make the cement of the following ingredients :-
Powdered litharge mixed with the colour required, say vegetable black, these
together mixed with pure glycerine.
Approximate proportions are as follows:-
To manufacture, say, one pound of this cement, I take of litharge eleven ounces,
vegetable black a quarter of an ounce, pure glycerine 4 ounces.
The materials thus made up are put up in convenient sized packets for
commercial purposes. For use the quantity required is brought to a thick paste and
applied as required. The Invention is applicable for use in colouring any kind of
lettering or other work cut or otherwise recessed in marble, granite, or other stone
or composition or metal for monuments, incised work in altar pieces, chimney
pieces, and recessed decorated work generally, also for fixing ornamental iron
railing, and for other purposes where such composition or cement is applicable.
Where other colours than black are required they are mixed with the litharge,
and the cement is used as before described.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Forsyth in the Great Seal Patent Office on the 27th April
1881.
WILLIAM FORSYTH, of the City and County of Worcester. "A NEW OR
IMPROVED COMPOSITION OR CEMENT FOR FILLING IN LETTERS OR OTHER RECESSED
WORK IN MARBLE, STONE, AND OTHER MATERIALS, ALSO APPLICABLE FOR
CEMENTING MATERIALS TOGETHER.'
"
The object of this Invention is to provide a convenient and efficient metallic
composition or cementitious cement or material for filling in letters or other
recessed work in marble, stone, and other material in any desired color, and which 1
shall also be generally applicable to the cementing together of stone or metals, or
one with the other.
According to my Invention, I make the cement of the following ingredients :-
Powdered litharge mixed with the colour required, say vegetable black, these
together mixed with puro glycerine.
Approximate proportions are as follows:-
To manufacture, say, one pound of this cement,
I take of litharge
"
"
"
"
"
eleven ounces.
vegetable black a quarter of an ounce.
» pure glycerine four ounces.
The materials thus made up are put up in convenient sized packets for
commercial purposes. For use the quantity required is brought to a thick paste,
and applied as required. The Invention is applicable for use in colouring any kind
of lettering or other work cut or otherwise recessed in marble, granite, or other stone
or composition or metal for monuments, incised work in altar pieces, chimney 2
pieces and recessed decorated work generally, also for fixing ornamental iron
railing and for other purposes where such composition or cement is applicable.
Where other colours than black are required they are mixed with the litharge,
and the cement is used as before described.
Having now described the nature of my said Invention and in what manner the
same is to be performed, I declare that I claim,--
The new or improved composition or cement composed of a combination of
litharge and glycerine with or without colouring material or materials substantially
in manner and for the purposes hereinbefore described.
In witness whereof, I, the said William Forsyth, have hereunto set my hand a
and seal, this Ninth day of April, in the year of our Lord One thousand
eight hundred and eighty one.
WILLIAM FORSYTH. (L.S.)