AN IMPROVED METHOD OF TREATING YARNS
Year: 1876

page_text: LETTERS PATENT to Samuel Graham, of Belfast, in the County of Antrim,
Ireland, Weaver, for the Invention of "AN IMPROVED METHOD OF TREATING
YARNS."
PROVISIONAL SPECIFICATION left by the said Samuel Graham at the Office
of the Commissioners of Patents on the 6th September 1876.
SAMUEL GRAHAM, of Belfast, in the County of Antrim, Ireland, Weaver. "AN
IMPROVED METHOD OF TREATING YARNS."
This Invention relates to an improved method of treating yarns, whether of silk,
wool, linen, cotton; or other material, whereby the quality and texture thereof are
very materially improved.
According to this Invention the hank of yarn is secured at both ends, one end
thereof being held permanently fast, and the hank of yarn is twisted from the other
end either by hand or by suitable machinery constructed for the purpose, and whilst
being so twisted it must be gently pulled in order to stretch the fibre
The operation of twisting and pulling must be continued until the hank becomes
apparently knotted and resists any further twisting, it may then be untwisted,
when it will be found to have obtained a very considerable increase to its length
and a rich glossy appearance not attainable by the methods of treatment hitherto
in use, and the yarn will also be made tougher, more easily workable, and less
liable to break either in hand or power looms than is at present the case.

page_text: My said Invention relates to an improved method of treating yarns, whether of
silk, wool, linen, cotton, or other material, whereby the quality and texture thereof
are very materially improved.
According to my said Invention the hank of yarn is secured at both ends, one
and thereof being held permanently fast, or it may be secured so as to allow of
rotatory motion, and the hank of yarn is twisted from the other end either by hand
or by means of any suitable machinery adapted for the purpose (but which forms
no part of my said Invention), and whilst being so twisted it is gently pulled in
order to stretch the fibre.
The operation of twisting and pulling must be continued until the hank becomes
apparently knotted, knitted, or curled, and resists any further twisting. Upon the
yarn being untwisted it will be found to have obtained a very considerable increase
to its length, and to have acquired a rich glossy appearance not attainable by the
methods of treatment hitherto in use, and the yarn will also be rendered tougher,
more easily workable, and less liable to break either in hand or power looms than
is at present the case.
Having thus declared and ascertained the nature of my said Invention, and in
what manner the same is to be performed, I would observe in conclusion that what
I consider novel and original, and therefore claim as constituting the Invention
secured to me by the said herein-before in part recited Letters Patent is, the
improved method of treating yarn, substantially as and for the purposes herein-
before described and set forth.
In witness whereof, I, the said Samuel Graham, have hereunto set my hand
and seal, this Third day of March, in the year of our Lord One thousand
eight hundred and seventy-seven.
SAMUEL GRAHAM. (L.S.)