Improvements in Paper Tubes for Wet Spun Yarns.
Year: 1896

page_text: Date of Application, 9th Nov., 1896
Complete Specification Left. 7th Aug. 1897-Accepted. 25th Sept.. 1897
PROVISIONAL SPECIFICATION.
Improvements in Paper Tubes for Wet Spun Yarns.
WILLIAM CAITHNESS JUNR., Director of the Belfast Flax Spinning & Weaving
Co. Ltd. Milfort Mill Belfast and SAMUEL MCDOWELL of Argyle Crescent Spring-
field Road Belfast Mill Manager do hereby declare the nature of this invention
to be as follows:
These improvements in paper tubes for wet spun yarns relate to the thin
flexible paper tubes for which Letters Patent No. 15206-1889 were granted-and
these improvements consist in perforating the tubes so as to make them adhere
to the yarn better than when the surface of the tube is plain during the processes
of drying unwinding or weaving.
For the small size of cops originally spun wet on the thin flexible paper tubes
the plain paper was practically efficient but as the bulk of yarn or size of cops
became increased it was found that the yarn became detached from the thin
paper tube during the processes of drying and weaving especially and the per-
forations in the tube are designed to and do lessen the liability of the yarn to
become detached from the tubes each perforation acting as a sort of key to the
body of yarn wound upon the tube during the process of wet spinning.
These perforations are advantageous for all sizes of thin flexible paper tubes
for wet spun yarns of flax and like yarns.
Dated this 7th day of November 1896
WILLIAM CAITHNESS, JNR.
SAMUEL MCDOWELL.
WILLIAM CAITHNESS JUNIOR Director of the Belfast Flax Spinning and Weaving
Co. Limited Milfort Mill Belfast and SAMUEL MCDOWELL of Argyle Crescent
Springfield Road Belfast 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:-
These improvements in paper tubes for wet spun yarns relate to the thin
flexible paper tubes for which Letters Patent No. 15206-1889 were granted and
these improvements consist in perforating the tubes so as to make them adhere to
the yarn better than when the surface of the tube is plain-during the processes
of drying unwinding or weaving.
For the small size of cops originally spun wet on the thin flexible paper tubes

page_text: the plain paper tube was practically efficient but as the bulk of the yarn or
size of cop became increased it was found that the yarn became detached from
the thin paper tube during the processes of drying and of weaving especially.
The perforations in the tubes are designed to and do lessen the liability of
the yarn to become detached from the tubes each perforation acting as a sort
of key seat to the body of yarn wound upon the tube during the process of
wet spinning.
Whilst we do not confine ourselves to any number or size of holes in the
thin flexible aper tubes for wet spun yarns yet it is found that it is not
necessary to have perforations extending over nearly the entire length of e
tube as is used in some processes of cotton or wool spinning but a few holes near
the base or large end of the tube are sufficient to give the wet spun yarn
sufficient hold of the thin flexible paper tube to keep the yarn from becoming
detached from the tube during the processes of drying and weaving and by
leaving the smaller diameter of the paper tubes free from holes the yarn runs
off more readily during weaving than would be the case if the holes were
continued the entire length of the tube as is the case in some makes of rigid tubes
employed in cotton or wool spinning and winding.
In a word just so many holes are made in the thin flexible paper tubes as
will form a sufficient key seat for the yarn which forms the key that retains the
dried mass of yarn on to the tube.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is.
The perforation of thin flexible paper tubes for use in the spinning drying
unwinding or weaving wet spun yarns of flax or the like for the purpose of
ensuring the adhesion of the yarn to the tube during the aforesaid processes.
Dated this 6th day of August 1897.
WILLIAM CAITHNESS, JNR.
SAMUEL MCDOWELL.