IMPROVEMENTS IN THE PROCESS OR METHOD OF DRAWING FLAX AND OTHER FIBROUS SUBSTANCES
Year: 1870

page_text: LETTERS PATENT to John Campbell, of Belfast, Ireland, for the
Invention of "IMPROVEMENTS IN THE PROCESS OR METHOD OF DRAWING FLAX
AND OTHER FIBROUS SUBSTANCES.”
Sealed the 1st November 1870, and dated the 4th May 1870.
PROVISIONAL SPECIFICATION left by the said John Campbell at the
Office of the Commissioners of Patents, with his Petition, on the
4th May 1870.
I, JOHN CAMPBELL, .of Belfast, Ireland, do hereby declare the nature
of the said Invention for "IMPROVEMENTS IN THE PROCESS OR METHOD OF
DRAWING FLAX AND OTHER FIBROUS SUBSTANCES," to be as follows:-
-:
The object of this Invention is to so treat the sliver preparatory to
twisting that it may be reduced in size in smaller gradations than has
hitherto been done and be delivered in a more thoroughly incorporated
state.
This object is attained by attaching to each drawing frame a subsidiary
drawing head or heads through which the material is passed on leaving

page_text: the doubling plate of the ordinary frame. The sliver being thus put
through two processes of drawing instead of one, as at present will be
brought to the required size by shorter drafts, will be contracted in
breadth at two operations instead of one, and will be delivered in one
thoroughly incorporated sliver.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Campbell in the Great Seal Patent Office
on the 3rd November 1870.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
CAMPBELL, of Belfast; Ireland, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fourth day of May, in the year of
our Lord One thousand eight hundred and seventy, in the thirty-third
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto me, the said John Campbell, Her special licence that I,
the said John Campbell, my executors, administrators, and assigns,
or such others as I, the said John Campbell, my executors, adminis-
trators, 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 PROCESS
OR METHOD OF DRAWING FLAX AND OTHER. FIBROUS SUBSTANCES," upon the condi-
tion (amongst others) that I, the said John Campbell, 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 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.
NOW KNOW YE, that I, the said John Campbell, do hereby declare
the nature of my said Invention, and in what manner the same is to
he performed, to be particularly described and ascertained in and by
the following statement, reference being had to the Drawing hereunto

page_text: By this duplex process the draft can be reduced in each operation, and
thus the fibres are preserved and greater regularity is given to the sliver,
its continuity not being destroyed by long drafts.
»
Having now set forth the nature of my Invention for "Improvements
in the Process or Method of Drawing Flax and other Fibrous Substances,"
and having explained the manner of carrying the same into effect, I
wish it to be understood that under the above in part recited Letters
Patent I claim, treating combined slivers of flax and other fibrous
substances in the manner and for the purpose above described.
In witness whereof, I, the said John Campbell, have hereunto set
my hand and seal, the Twenty-eighth day of October, in the year
of our Lord One thousand eight hundred and seventy.