IMPROVEMENTS IN PAPER-MAKERS' DRYING FELTS
Year: 1880

page_text: LETTERS PATENT to James Porritt, of Stubbins Vale, in the County of
Lancaster, for an Invention of "IMPROVEMENTS IN PAPER-MAKERS' DRYING
FELTS."
PROVISIONAL SPECIFICATION left by the said James Porritt at the Office
of the Commissioners of Patents on the 28th July 1880.
JAMES PORRITT, of Stubbins Vale, in the County of Lancaster. "IMPROVEMENTS
IN PAPER MAKERS' DRYING FELTS."
My Invention consists in so joining cotton drying felts that the cloth presents an
even surface on either side, so that when one side has become worn or injured it
can be turned and the other side used.
I make a cloth 4, 5, 6, or more folds to the thickness required, and so woven
as to form one cloth. To make my improved joining the ends of the warp threads
of the inner folds or webs are knotted together; the knots are then pressed or
beaten to make them imperceptible when the joining is complete.
The warp threads from one end of the outer fold are drawn over the joining of
the inner folds and into the other end of the outer fold, from which corresponding
warp threads are drawn out, so as not to increase the thickness of the cloth at the
joining, and vice versa. I prefer to draw out and insert alternate warp threads in
each end of the outer folds, but the joining may be made by running in threads or
warps without drawing any out. When the ends of the outer fold have been
joined on one side, the cloth is turned and the outer fold of the other side is joined
in a similar manner. The joining thus made is durable and imperceptible, and
when one side of the cloth has been worn out it can be turned, and the other side
will wear almost as long as a new felt.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said James Porritt in the Great Seal Patent Office on the 26th January
1881.
JAMES PORRITT, of Stubbins Vale, in the County of Lancaster. "IMPROVEMENTS
IN PAPER MAKERS' DRYING FELTS."
My Invention consists in so joining cotton drying felts that the cloth presents
an even surface on both sides, so that when one side has become worn or injured
it can be turned and the other side used.
I make a cloth of four, five, six, or more folds to the thickness required, and so
woven as to form one cloth.
To make my improved joining the ends of the warp threads of the inner folds
or webs are knotted together to their corresponding folds; the knots are then
pressed or beaten to make them imperceptible when the joining is complete.
The warp threads from one end of the outerfold are drawn over the joining of
the inner folds and into the other end of the outer fold, from which corresponding
warp threads are drawn out, so as not to increase the thickness of the cloth at the
joining, and vice-versa.
I prefer to draw out and insert alternate warp threads in each end of the outer-
folds, but the joining may be made by running in threads or warps without
drawing any out.
When the ends of the outerfold have been joined on one side, the cloth is
turned over and the other side is joined in the same way, as previously described.
The joining thus made is durable and imperceptible, and when one side of the
cloth has been worn out it can be turned and the other side used.
Having stated the nature of my Invention, and described the manner of
performing the same,
I declare that I claim,-
Joining cotton drying felts, so that the cloth presents an even surface on both
sides with an imperceptible or almost imperceptible joining, and the manner of
effecting the same, as herein described.
In witness whereof, I, the said James Porritt, have hereunto set my hand
and seal, this Twenty fifth day of January, One thousand eight hundred
and eighty one.
JAMES PORRITT. (L.S.)