IMPROVEMENTS IN REDUCING WOOD FIBRES TO PULP
Year: 1862

page_text: LETTERS PATENT to William Wharton Burdon, of the City and County
of Newcastle-upon-Tyne, Esquire; for the Invention of "IMPROVEMENTS
IN REDUCING WOOD FIBRES TO PULP."
PROVISIONAL SPECIFICATION left by the said William Wharton Burdon
at the Office of the Commissioners of Patents, with his Petition, on the
6th August 1862.
I, WILLIAM WHARTON BURDON, of the City and County of Newcastle-
upon-Tyne, Esquire, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN REDUCING WOOD FIBRES TO PULP," to be as follows:-.
My Invention consists in the employment of fixed stones. rasps, or other
like reducing agents, and in passing blocks or pieces of wood across the grain
or fibre thereof over or upon such stones or reducing agents. I employ water
to assist the reduction of the fibre, and to carry off the pulpy mass.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Wharton Burdon in the Great Seal Patent Office
on the 6th February 1863.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
WHARTON BURDON, of the City and County of Newcastle-upon-Tyne, Esquire,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Palent, bearing date the Sixth day of August. 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 William Wharton Burdon. Her special licence that I, the said Williamı
Wharton Burdon, my executors, administrators, and assigns, or such others as
1, the said William Wharton Burdon, my executors. administrators, and 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 REDUCING WOOD FIBRES TO PULP," upon the condition
(amongst others) that T. the said William Wharton Bardon, my executors
or administrators, by an instrument in writing under my. or their, or
of their hands and seals. 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.
onc
NOW KNOW YE, that I, the said William Wharton Burdon, 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 follow-
ing statement thereof, that is to say:
Or
My Invention consists in the employment of fixed stones, rasps, or other
like reducing agents, and in passing blocks or pieces of wood across the grain
or fibre thereof over, under, or upon such stones or reducing agents. I employ
water to assist the reduction of the fibre, and to carry off the pulpy mass.
I reduce the wood to pulp by rubbing stones upon wood across the grain
thereof. In some cases 1 find it advantageous to soften the wood by steam or
by boiling in water or in an alkaline solution; and I also use wood in the
state of shavings or sawdust as well as blocks.

page_text: And having now described the nature of my said Invention, and in what
manner the same is to be performed. I declare that I claim reducing wood
fibres to pulp by mechanical reducing agents passed upon the wood in a
direction across the grain thereof, or by passing the wood in a direction across
the grain, over, under, and upon mechanical reducing agents.
In witness whereof. I, the said William Wharton Burdon, have hereunto
set my hand and seal, this Third day of February, One thousand eight
hundred and sixty-three.
Signed. sealed, and delivered by the said
William Wharton Burdon, being first
duly stamped, in the presence of
CHARLES GRIFFITH,
W. W. BURDON. (L.S.)
Solicitor,
Newcastle-on-Tync.