IMPROVEMENTS IN THE MANUFACTURE OF PAPER
Year: 1880

page_text: LETTERS PATENT to William George White, of Paris, in the Republic of France,
but temporarily of 33, Southampton Buildings, Holborn, Middlesex, for an
Invention of "IMPROVEMENTS IN THE MANUFACTURE OF PAPER."
PROVISIONAL SPECIFICATION left by the said William George White at
the Office of the Commissioners of Patents on the 16th January 1880.
WILLIAM GEORGE WHITE, of Paris, in the Republic of France, but temporarily
of 33, Southampton Buildings, Holborn, Middlesex. "IMPROVEMENTS IN THE
MANUFACTURE OF PAPER."
This Invention relates to improvements in the manufacture of paper, which
improvements are more particularly applicable to paper intended to be used in
conjunction with the improved color printing process, for which Letters Patent,
No. 3047 of 1879, have been granted to me, and which process is fully described
in the Specification of such Letters Patent.
Such improvements have for their object not only to obviate the paper becoming
rotten, owing to over absorption of color, but also to dispense with all necessity
for mounting the same after it has been printed on as is at present necessary.
In order to effect this I take any ordinary paper and pass the same again through
the paper making machine, and coat it over with a thin coating of fine cotton pulp,
free from size, which allows of the surface whereon such coating is laid absorbing
a sufficient quantity of the color for printing purposes, at the same time that it
prevents the color permeating through the entire substance of the paper as is at
present the case, thereby not only rotting the paper but necessitating the process of
mounting.
By this means a considerable economy of time, labour, and material is effected,
as it precludes all unnecessary waste of color, at the same time that an equally
perfect result is obtained.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William George White in the Great Seal Patent Office on the 16th
July 1880.
WILLIAM GEORGE WHITE, of Paris, in the Republic of France, but temporarily
of 33, Southampton Buildings, Holborn, Middlesex. "IMPROVEMENTS IN THE
MANUFACTURE OF PAPER."
This Invention relates to improvements in the manufacture of paper, which
improvements are more particularly applicable to paper intended to be used in
conjunction with the improved color printing process, for which Letters Patent,
Number 3047, of 1879, have been granted to me, and which process is fully
described in the Specification of such Letters Patent.
Such improvements have for their object not only to obviate the paper becoming
rotten, owing to over absorption of color, but also to dispense with all necessity for
mounting the same after it has been printed on as is at present necessary.
In order to effect this I take any ordinary printing paper, or any other suitable
paper, and pass the same again through the paper making machine, and coat it
over with a thin coating of fine cotton pulp, free from size, which allows of the
surface whereon such coating is laid absorbing a sufficient quantity of the color for
printing purposes, at the same time that it prevents the colour permeating through
the entire substance of the paper as is at present the case, thereby not only rotting
the paper but necessitating the process of mounting; or I take ordinary printing
paper or any other suitable paper and pass it through a spreading machine, and so
cover or coat the paper with the unsized pulp and then dry it in the usual manner,
thus obtaining a similar result.
By this means a considerable economy of time, labour, and material is effected, as
it precludes all unnecessary waste of color, at the same time that an equally perfect
result is obtained.
Having thus particularly described and ascertained the nature of my said
Invention of improvements in the manufacture of paper, and the manner of carrying
the same into effect, I would have it understood that what I claim as my Invention
and desire to secure by the hereinbefore in part recited Letters Patent is, the
coating ordinary printing paper, or any other suitable paper, with a thin coating of
fine cotton pulp, free from size, substantially in the manner and for the purposes
herein before set forth and described.
In witness whereof, I, the said William George White, have hereunto set my
hand and seal, this Fifteenth day of July, in the year of our Lord One