IMPROVEMENTS IN PREDADINA ALDEMENIZED PADED FOR PHOTOGRAPHIC PUDAS
Year: 1862

page_text: LETTERS PATENT. to Thomas Sutton, Bachelor of Arts, of Saint Brelade's
Bay, in the Island of Jersey, for the Invention of "IMPROVEMENTS IN
PREDADINA ALDEMENIZED PADED FOR PHOTOGRAPHIC PUDAS "
Sealed the 24th April 1863, and dated the 28th October 1862.
PROVISIONAL SPECIFICATION left by the said Thomas Sutton at the
Office of the Commissioners of Patents, with his Petition, on the 28th
October 1862.
I, THOMAS SUTTON, Bachelor of Arts, of Saint Brelade's Bay, in the Island
5 of Jersey, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN PREPARING ALBUMENIZED PAPER FOR PHOTOGRAPHIC PURPOSES," to be as
follows:-
This Invention relates to a peculiar process for preparing albumenized paper
for photographic purposes. In the ordinary method of preparing albumenized
paper for photographic printing purposes the sheet of paper is floated upon
the surface of liquid albumen, but without having undergone any previous.pre-
paration in order to render it impervious to liquids, the albumen therefore
soaks into it more or less according to the nature of the common sizing which
it contains. Moreover, in the subsequent operations of printing, the various
solutions employed penetrate the paper in the same way. The prints are
therefore less vigorous and brilliant and also less permanent than if the
albumen had been applied to the surface only or to a sheet of paper which had
been previously rendered impervious to liquids by the application of some
waterproof sizing. In order to remedy this defect it is proposed, according to
this Invention, to prepare the paper before albumenizing it by soaking it in a

page_text: solution of india-rubber or gutta percha, in benzole, or any of the other
suitable solvents of these substances, for example, chloroform, kerosolene, or
bisulphide of carbon. A very good solution for the purpose consists of five
grains of india-rubber dissolved in one ounce of benzole. After the paper has
been immersed in this solution and dried, it is to be albumenized in the usual
manner.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Thomas Sutton in the Great Seal Patent Office on the 27th
April 1863.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
SUTTON, Bachelor of Arts, of Saint Brelade's Bay, in the Island of Jersey,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-eighth day of October, in the year of our
Lord One thousand eight hundred and sixty-two, in the twenty-sixth year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said Thomas Sutton, Her special license that I, the said Thomas
Sutton, my executors, administrators, and assigns, or such others as I, the said
Thomas Sutton, my executors, administrators, or 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
PREPARING ALBUMENIZED PAPER FOR PHOTOGRAPHIC PURPOSES," upon the condition
(amongst others) that I, the said Thomas Sutton, my executors or adminis-
trators, by an instrument in writing under my hand and seal, or, under the
hand and seal of one of them, 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 I, the said Thomas Sutton, do hereby declare
the nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement, that is to say :-
My said Invention relates to a peculiar process for preparing albumenized

page_text: paper for photographic purposes. In the ordinary method of preparing albu-
menized paper for photographic printing purposes, the sheet of paper is floated
upon the surface of liquid albumen, but without having undergone any previous
preparation, in order to render it impervious to liquids; the albumen therefore
soaks into it more or less according to the nature of the common sizing which
it contains. Moreover, in the subsequent operations of printing, the various
solutions employed penetrate the paper in the same way. The prints are
therefore less vigorous and brilliant, and also less permanent, than if the
albumen had been applied to the surface only or to a sheet of paper which had
been previously rendered impervious to liquids by the application of some
waterproof sizing. In order to remedy this defect it is proposed, according to
this Invention, to prepare the paper before abumenizing it, by soaking it in a
solution of india-rubber or gutta percha, in benzole, or any of the other suitable
solvents of these substances, for example, chloroform, kerosolene, or bisulphide
of carbon. A very good solution for the purpose consists of five grains of
india-rubber dissolved in one ounce of benzole. After the paper has been
immersed in this solution and dried, it is to be albumenized in the usual
manner.
Having now described and particularly ascertained the nature of my said
Invention, and the manner in which the same is or may be used or carried
into effect, I would observe in conclusion, that what I consider to be novel and
original, and therefore claim as the Invention secured to me by the herein-
before in part recited Letters Patent, is, the mode of preparing albumenized
paper for photographic purposes, as herein-before described.
In witness whereof, I, the said Thomas Sutton, have hereunto set my
hand and seal, this Twenty-first day of April, One thousand eight
hundred and sixty-three.
THOMAS SUTTON. (L.S.)