A PROCESS OR METHOD OF MANUFACTURING WRITING PAPER IN SUCH MANNER AS THAT IT WOULD BE EXTREMELY DIFFICULT, IF NOT IMPOSSIBLE, AFTERWARDS TO EXTRACT OR DISCHARGE ANY WRITING FROM SUCH PAPER
Year: 1817

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I GABRIEL
TIGERE, of Duke's Court, Bow Street, in the County of Middlesex, Gentle-.
man, send greeting.
WHEREAS His present Majesty, in and by His certain Letters Patent,
under the Great Seal of the United Kingdom of Great Britain and Ireland,
bearing date at Westminster, the Third day of June, in the fifty-seventh year
of His reign, did, of His especial grace, certain knowledge, and meer motion,
for Himself, His heirs and successors, give and grant unto me, the said Gabriel
Tigere, my exors, admors, and assigns, His special licence, full power, sole
privilege and authority, that I, the said Gabriel Tigere, my exors, adñiors,
and assigns, and every of them, by myself and themselves, or by my and their
deputy or deputies, servants or agents, or such others as I, the said Gabriel
Tigere, my exors, adñiors, or assigns, should at any time agree with and no
others, from time to time and at all times thereafter, during the term of years
therein expressed, should and lawfully might make, use, exercise, and vend,
my Invention therein mentioned of "A PROCESS OR METHOD OF MANUFACTURING
WRITING PAPER IN SUCH MANNER AS THAT IT WOULD BE EXTREMELY DIFFICULT, IF NOT
IMPOSSIBLE, AFTERWARDS TO EXTRACT OR DISCHARGE ANY WRITING FROM SUCH
PAPER," within that part of the United Kingdom of Great Britain and Ireland,
called England, the Dominion of Wales, and Town of Berwick-upon-Tweed,
and also His Majesty's Colonies and Plantations abroad, in such manner as to
ne, the said Gabriel Tigere, my exors, admors, and assigns, or any of them,

page_text: should, in my or their discretion, seem meet, and that I, the said Gabriel Tigere,
my exors, admors, and assigns, should and lawfully might have and enjoy the
whole profit, benefit, commodity, and advantage, from time to time coming,
growing, accruing, and arising by reason of the said Invention, for and during
the term of years therein mentioned, to have, hold, exercise, and enjoy the
said licence, powers, privileges, and advantages therein-before granted or men-
tioned to be granted unto me, the said Gabriel Tigere, my exors, admors, and
assigns, for and during and unto the full end and term of fourteen years from
the date of the said Letters Patent next and immediately ensuing, and fully to
be compleat and ended according to the Statute in such case inade and provided;
in which said Letters Patent is contained a proviso that the same should be
void if I, the said Gabriel Tigere, should not particularly describe and ascer-
tain the nature of my said Invention, and in what manner the same was to be
performed, by an instrument in writing under my hand and seal, and cause
the same to be inrolled in the High Court of Chancery within six calendar
months next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Gabriel Tigere, in pursuance of the said
proviso in the said Letters Patent, do hereby describe and ascertain the nature
of the said Invention, and in what manner the same is to be performed, as
follows, (that is to say):-
.
The pulp is to be prepared in the usual manner of preparing pulp for the
manufacture of paper, either with or without a mixture of allum and smalt,
and when the pulp is in the last state of preparation previously to its being
converted into paper, the water in which the pulp has been prepared is to
be discharged, and the pulp is then to be immersed in a solution of pure
prussiate of potash dissolved in pure or distilled water, in the proportion of one
ounce of pure prussiate of potash to two gallons and a half, or thereabouts, of
water; and when the pulp has been completely saturated the paper is to be
made, sized, and finished in the usual manner. Or paper in the water leaf,
after it has been dried, and previously to its being sized, may be immersed in a
solution of pure prussiate of potash dissolved in pure or distilled water, in the
proportions aforesaid, in which case the paper is to remain in the solution
(which ought to be kept warm), until the paper is entirely saturated, after
which the paper is to be again pressed and dried, and when perfectly dry to be
sized and finished in the usual manner.
This Invention may also be applied to parchment, by immersing the parch-
ment in its prepared state in a solution prepared in the manner and propor-
tions herein-before mentioned, and when the parchment is completely saturated
it is to be dried, and when dried to be sized in the usual manner of sizing