Improvements in the Treatment of Wet Spun Flax Yarn.
Year: 1894

page_text: Date of Application, 19th Feb., 1894
Complete Specification Left, 14th Nov., 1894-Accepted, 15th Dec., 1891
PROVISIONAL SPECIFICATION.
Improvements in the Treatment of Wet Spun Flax Yarn.
I, JOSHUA VALENTINE EVES, of Forth River Mill, Falls Road, Belfast, in the
County of Antrim, Ireland, Mill Manager, do hereby declare the nature of this
invention to be as follows:-
In the manufacture of flax yarns I find that when spun or wound upon hard.or
stiff pirns the expense involved of sending such pirns to the weaver or otherwise
sending the yarn away upon them is considerable. And I also find that when a thin
paper shell or tube is employed over the rigid pirn less yarn can be wound thereon
and also that the thin paper tube or shell becomes loose in the cop of yarn along
with the rigid pirn during the process of drying the yarn.
I find that all these objections can be overcome by an alteration in the process
of treatment through which the yarn is passed whereby the yarn is first spun or
wound onto the rigid or stiff pirn alone and then transferred when dry to a thin and
inexpensive core.
The invention consists essentially in first winding the yarn as it is spun onto
a rigid or stiff pirn, drying same in a heated chamber or room, removing
the rigid or stiff pirn from the cop of yarn when dry or sufficiently dry to
handle and has become loose on the pirn and inserting instead of the stiff pirn
which has been removed a thin paper tube to stiffen the cop and retain the yarn
in position for transport or for subsequent unwinding in the shuttle or other
unwinding process.
In carrying out the invention I take a wooden, metal, paper or other pirn thick
enough to spin or wind upon and spin the yarn and wind it thereon in the ordinary
spinning frame. When the pirn is full and the cop made I remove the two together
to the drying room and leave them until dry or nearly so when the stiff cop
of yarn will become loose and easily detached. The stiff pirn which has thus
become loose I remove from the cop and then place therein a thin tube of paper
(preferably taper in form) which will take the place of the stiff pirn and will
at the same time while being much cheaper and inore portable stiffen and support
the cop during any subsequent process of unwinding either in the shuttle or any
other machine.
The paper tubes may be made long enough to take two or more pirns on one tube
and so increase the length of yarn placed in the shuttle or otherwise carried on
the tube.
I may give the paper tube a light coating of size or other adhesive material to
cause it to adhere slightly to the inner layer of the yarn.
The form of paper pirn I at present prefer to employ for this purpose are
corrugated longitudinally for a portion of their length to allow them to be
expanded outward to bear more tightly against the inner surface of the yarn. Or
the paper may be corrugated transversely or may be indented or otherwise formed
with a rough or uneven surface for the same. purpose.
I am aware that stiff pirus of wood, metal, and paper have already been used in
wet flax spinning, also that thin paper tubes have been used superimposed on the
stiff or rigid pirn during spinning and drying and I do not make any claim for
such per se.
Dated this 17th day of February 1901,
WM. P. THOMPSON & Co.,
6, Bank Street, Manchester, Patent Agents.

page_text: COMPLETE SPECIFICATION.
Improvements in the Treatment of Wet Spun Flax Yarn.
I, JOSHUA VALENTINE EVES, of Forth River Mill, Falls Road, Belfast, in the
County of Antrim, Ireland, Mill Manager, do hereby declare the nature of this
invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
In the manufacture of flax yarns I find that when spun or wound upon hard
or stiff pirns the expense involved of sending such pirns to the weaver or other-
wise sending the yarn away upon them is considerable. And I also find that when
a thin paper shell or tube is employed over the rigid pirn less yarn can be wound
thereon and also that the thin paper tube or shell becomes loose in the cop of yarn
in many cases during the process of drying the yarn.
I find that all these objections can be overcome by an alteration in the process of
treatment through which the yarn is passed whereby the yarn is first spun or
wound onto the rigid or stiff pirn alone and then transferred when dry to a thin
and inexpensive core.
The invention consists essentially in first winding the yarn as it is spun onto
a rigid or stiff pirn, drying same in a heated chamber or room, withdrawing
the rigid or stiff pirn from the cop of yarn when dry or sufficiently dry to handle
and has become loose on the pirn and inserting instead of the stiff pirn which
has been removed a thin paper tube to stiffen the cop and retain the yarn in
position for transport or for subsequent unwinding in the shuttle or other unwinding
process.
In carrying out the invention I take a wooden, metal, paper or other pirn thick
enough or stiff enough to spin or wind upon and I spin the yarn and wind it
thereon in the ordinary spinning frame. When the pirn is full and the cop made
I remove the two together to the drying room and leave them until dry or nearly
so when the cop of yarn will become loose and easily detached. The stiff pirn
which has thus become loose I withdraw from the cop and then insert therein a
thin tube of paper (preferably taper in form) which will take the place of the
stiff pirn and will at the same time while being much cheaper and more portable
stiffen and support the cop during any subsequent process of unwinding either in
the shuttle or any other machine.
The paper tubes may be made long enough to take two or more pirns on one
tube and so increase the length of yarn carried on the tube, to be used in the
shuttle or other unwinding process.
D
I may give the paper tube a light coating of size or other adhesive material to
cause it to adhere slightly to the inner layer of the yarn.
The form of paper pirn 1 at present prefer to employ for this purpose are
corrugated longitudinally for a portion of their length to allow them to be expanded
outward to bear more tightly against the inner surface of the yarn. Or the paper
may be corrugated transversely or may be indented or otherwise formed with a
rough or uneven surface for the same purpose.
I am aware that stiff pirns of wood, metal, and paper have already been used
in wet flax spinning, also that thin paper tubes have been used, superimposed on the
stiff or rigid pirn during spinning and drying and I do not make any claim for
such per se.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, I declare that what I
claim is-
The treatment of wet spun flax yarn during the process of manufacture which
con-ists in winding the yarn as it is spun in a wet condition onto a rigid or stiff:

page_text: pirn, removing the same together in a wet state to the drying room, drying them in
a heated chamber or room, and then when dry withdrawing the stiff pirn from the
cop of yarn and replacing it by a thin paper tube substantially as described.
Dated this 13th day of November 1894.
WM. P. THOMPSON & Co.,
Manchester, Liverpool, and London, Patent Agents.