CERTAIN IMPROVE- MENTS IN THE MATERIAL AND MANUFACTURE OF PAPER
Year: 1824

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, LOUIS
LAMBERT, of Number Twenty-nine, Cannon Street, in the City of London,
Gentleman, send greeting.
WHEREAS His present most Excellent Majesty King George the Fourth,
by His Letters Patent under the Great Seal of the United Kingdom of Great
Britain and Ireland, bearing date at Westminster, the Twenty-third day of
November, in the fifth year of His reign, did, for Himself, His heirs and
successors, give and grant unto me, the said Louis Lambert, my executors,
administrators, and assigns, His especial licence, full power, sole privilege and
authority, that I, the said Louis Lambert, my executors, administrators,
and assigns, should at any time agree with, and no others, from time to
time and at all times during the term of years therein expressed, should
and lawfully might make, use, exercise, and vend, within England, Wales,
and the Town of Berwick-upon-Tweed, my Invention of "CERTAIN IMPROVE-
MENTS IN THE MATERIAL AND MANUFACTURE OF PAPER;" in which said Letters
Patent is contained a proviso that if I, the said Louis Lambert, should not
particularly describe and ascertain the nature of my said Invention, and in what
manner the same is to be performed, by an instrument in writing under my.
hand and seal, and causo the same to be inrolled in His Majesty's High
Court of Chancery within six calendar months next and immediately after the
date of the said Letters Patent, that then the said Letters Patent, and all
liberties and advantages whatsoever thereby granted, should utterly cease,
determine, and become void, as in by the said Letters Patent, relation being
thereunto had, may more fully and at large appear.

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
Louis Lambert, do hereby declare that the nature of my said Invention, and
the manner in which the same is to be performed, are particularly described
and ascertained in the manner following (that is to say) :-
My said secret or Invention consists in the employment of straw, which I
prefer to free from knots by cutting them off the stems; I next submit tho
straw to ebullition with quick lime in water, in the proportion of four ounces
of lime to one of straw, to extract the colouring matters, and to dispose it to
become fibrous. I can also employ for the same purposes caustic potash,
soda, or ammonia. It is then washed. I next expose it from twelve to fifteen
hours to the action of a hydro-sulphuret composed of quick lime and sulphur in
solution, in the proportion of four ounces of lime to one of sulphur, with one
quart of water, in order to free it from the mucilaginous and silicious matters
so prejudicial in paper making. I then wash it thoroughly in successive
. portions of water by exposing it to the action of the paper mill till all smell of
the alkaline sulphuret. is entirely removed; I then press it, and afterwards
submit it to the usual operations employed in bleaching vegetable fibres, (viz³)
to the action of chlorine, either separate or in combination with lime, or by
exposure to the open air and light upon the grass; after this it is well washed
until all the smell of bleaching is withdrawn; after this it is exposed to the
action of the rag engines usually used in paper making, in order to reduco
it into pulp or paste, previous to being made into paper.
In witness whereof, I, the said Louis Lambert, have hereunto set my
hand and seal, this Twenty-first day of May, in the year of our Lord
One thousand eight hundred and twenty-five.
J. S. HARVEY.
L. LAMBERT. (L.S.).
AND BE IT REMEMBERED, that on the same Twenty-first day of May,
in the year above mentioned, the aforesaid Louis Lambert came before our
Lord the King in IIis Chancery, and acknowledged the Specification afore-
said, and all and overy thing therein contained, in form above written. And
also the Specification aforesaid was stamped according to the tenor of the
Statute in that case made and provided.