IMPROVEMENTS IN FILLETING AND FIXING POINTED TEETH IN THE FILLETS USED IN THE PRE- PARATION OR WAY TO HAND AND OTHER FIBROUS SUBSTANCES ヤ
Year: 1856

page_text: LETTERS PATENT to William Beevers Birkby, of Upper Rawfolds Card
Works, Cleckheaton, near Leeds, for the Invention of "IMPROVEMENTS IN
FILLETING AND FIXING POINTED TEETH IN THE FILLETS USED IN THE PRE-
PARATION OR WAY TO HAND AND OTHER FIBROUS SUBSTANCES
ヤ
"
ealed the 6th January 1857, and dated the 18th July 1856.
PROVISIONAL SPECIFICATION left by the said William Beevers Birkby,
at the Office of the Commissioners of Patents, with his Petition, on the
18th July 1856.
I, WILLIAM BEEVERS BIRKBY, of Upper Rawfolds Card Works, Cleck-
heaton, near Leeds, do hereby declare the nature of the Invention for
"IMPROVEMENTS IN FILLITING AND FIXING POINTED TEETH IN THE 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 filleting and fixing pointed
teeth in the fillets used in the preparation of flax, hemp, and other fibrous
substances, for which purpose the fillets are each made of two layers of sheet
iron or other strong metal, having between them one or more thicknesses of a
soft material such as canvass, paper, or other yielding substance. The holes to
receive the pointed teeth are punched through the two layers of sheet metal,
and through the soft substance between them. The holes at the back end of
cach tooth are upset, pressed up, or spread at the back of the fillet; the holes
are punched in an inclined direction through the fillets, in order that the teeth
may be inclined to the surfaces thereof.

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 14th January 1857.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
BEEVERS BIRKBY, of Upper Rawfolds Card Works, Cleckheaton, near Leeds,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Eighteenth day of July, 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 FILLETING AND FIXING POINTED TEETH IN THE 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 nature of the said "Invention, and in what manner tthe 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 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 filleting and fixing pointed
teeth in the fillets used in the preparation of flax, hemp, and other fibrous
substances; for which purpose the fillets are each made of two layers of sheet
iron or other strong metal, having between them one or more thicknesses of a
soft material such as canvass, paper, or other yielding substance. The holes
to receive the pointed teeth are punched through the two layers of sheet metal,
and through the soft substance between them. The holes at the back end of
each tooth are upset, or pressed up, or spread at the back of the fillet. The

page_text: holes are punched in an inclined direction through the fillets, in order that the
teeth may be inclined to the surfaces thereof.
Having thus stated the nature of my said Invention, I will proceed more
fully to describe the manner of performing the same.
DESCRIPTION OF THE DRAWING.
Figure 1 shows an edge view, and Figure 2 a back view, of piece of
filleting having pointed teeth fixed therein according to my Invention. a and
c are two layers of sheet iron, or it may be of other strong metal, having
between them a layer b of soft and yielding material such as canvass, paper,
or other yielding substance, which may be saturated with india-rubber or
gutta percha solution, or not, or sheet india-rubber or gutta-percha-may-be-used-
as the soft yielding substances placed between the two layers of sheet metal.
The holes are punched through the two layers of sheet metal, and through the
soft substance or substances between them; and the holes are punched or
formed in an inclined direction, in order that the pointed teeth fixed therein
may be inclined to the surface of the fillet. The holes at the back end of each
tooth are upset, or pressed up, in order securely to hold the teeth.
Having thus described the nature of my said Invention, and the manner
of performing the same, I would have it understood that what I claim is the
manufacture of filleting with fixed pointed teeth as herein described.
In witness whereof, I, the said William Beevers Birkby, have hereunto
set my hand and seal, this Twenty-fourth day of December, in the
of our Lord One thousand eight hundred and fifty-six.
year
5 Witness,
WILLIAM BEEVERS BIRKBY. (L.B.)
JAMES WADSWORTH,
Solicitor,
Millbridge, near Leeds.