IMPROVEMENTS IN THE MANUFACTURE OF POINTED WIRE FILLETS USED IN THE PREPARATION OF FLAX, Tow, HEMP, AND OTHER FIBROUS SUBSTANCES."
Year: 1856

page_text: LETTERS PATENT to William Beevers Birkby, of Upper Rawfold's Card
Works, Cleckheaton, near Leeds, for the Invention of "IMPROVEMENTS IN
THE MANUFACTURE OF POINTED WIRE FILLETS USED IN THE PREPARATION OF
FLAX, Tow, HEMP, AND OTHER FIBROUS SUBSTANCES."
PROVISIONAL SPECIFICATION left by the said William Beevers Birkby
at the Office of the Commissioners of Patents, with his Petition, on the
12th December 1856.
I, WILLIAM BEEVERS BIRKBY, of Upper Rawfold's Card Works, Cleckheaton.
near Leeds, do hereby declare the nature of the Invention for "IMPROVEMENTS
IN THE MANUFACTURE OF POINTED WIRE FILLETS USED IN THE PREPARATION OF
FLAX, TOW, HEMP, AND OTHER FIBROUS SUBSTANCES," to be as follows:-
This Invention has for its object improvements in the manufacture of
pointed wire fillets used in the preparation of flax, tow, hemp, and other
fibrous substances. For these purposes, in place of employing the ordinary
filleting or backs for receiving the pointed wire teeth, filleting or backs are
prepared by gluing or cementing several thicknesses of canvass or strong woven
fabric together, the upper surface being formed of leather similarly cemented.
The pointed wire teeth are set in the ordinary manner.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Beevers Birkby in the Great Seal Patent Office on
the 11th June 1857.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
BEEVERS BIRKBY, of Upper Rawfold's Card Works, Cleckheaton, near Leeds,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twelfth day of December, in the year of our
Lord One thousand eight hundred and fifty-six, in the twentieth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me
the said William Beevers Birkby, Her special licence that I, the said
William Beevers Birkby, my executors, administrators, and assigns, or such
others as I, the said William Beevers Birkby, 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 THE MANUFACTURE OF POINTED WIRE FILLETS USED IN THE
PREPARATION OF FLAX, TOW, HEMP, AND OTHER FIBROUS SUBSTANCES," upon the
condition (amongst others) that I, the said William Beevers Birkby, my
executors or administrators, by an instrument in writing under my, or their,
or one of their hands and seals, should particularly describe and ascertain the
naturo of the said Invention, and in what manner the same was to be per-
formed, 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 William Beevers Birkby, do hereby
declare the nature of the said Invention, and in what manner the same is
to be performed, to be particularly described and ascertained in and by the
following statement thereof, that is to say:-
This Invention has for its object improvements in the manufacture of
pointed wire fillets used in the preparation of flax, tow, hemp, and other fibrous
substances. For these purposes, in place of employing the ordinary filleting
or backs for receiving the pointed wire teeth, filleting or backs are prepared
by gluing or cementing several thicknesses of canvas or strong woven fabric
together, the upper surface being formed of leather similarly cemented. The
pointed wire teeth are set in the ordinary manner.
:
Having thus stated the nature of iny said Invention, I will proceed more
fully to describe the manner of performing the same.

page_text: DESCRIPTION OF THE DRAWING.
Figure 1 shows a side view of a piece of pointed wire fillet made according
to my Invention, which consists of several layers of strong canvass glued or
cemented together, and to an upper or front surface of leather; a, a, are the
5 several layers of strong fabric, the number of layers depending on the nature
and. strength of the fabric, and the strength of fillet desired to be produced;
6 is the front or upper surface of leather.
Ligure 2 shows a similar fillet, but with a metal plate at the back to give
additional strength when desired. The pointed wire teeth are set in each of
CEL
additional strength when desired. The pointed wire teeth are set in each of
the fillets in the ordinar, manu
of flax, tow, hemp, and other fibrous substances cemented or glued together,
and combined with a front or upper surface of leather, as described.
In witness whereof, I, the said William Beevers Birkby, bave hereunto
set my hand and seal, this Sixth day of June, in the year of our Lord
One thousand eight hundred and fifty-seven.
Witness,
WILLIAM BEEVERS BIRKBY. (L.s.)
JAMES WADSWORTH, Solicitor,
Eddercliffe, Leeds. .