Improvements in or relating to the Preparation of Pirns or Cops of Yarn for Weaving.
Year: 1889

page_text: Date of Application, 18th Nov., 1889
Complete Specification Left, 16th Aug., 1890-Accepted, 20th Sept., 1890
PROVISIONAL SPECIFICATION.
Improvements in or relating to the Preparation of Pirns or Cops of
Yarn for Weaving.
I, JOSHUA VALENTINE EVES, of the Forth River Mills, Falls Road, Belfast, in the
County of Antrim, Ireland, Mill Manager, do hereby declare the nature of this
invention to be as follows:-
This invention relates to the preparation of cops or pirns of yarn spun or rewound
for the shuttle.
In the weaving of fine cambrics or other cloths from linen or other yarn it is
desirable to open the shed in the loom as little as possible so that the warp shall not
he strained. With this object the shuttles are made as flat as possible and to enable
them to carry a sufficient quantity of yarn the pirns are long but of small diameter
when full.
The object of this invention is to provide for the use in a shuttle of ordinary depth
of a pirn wound to a much greater diameter than those usually employed and of such
diameter as will be most economical to produce.
It consists essentially in compressing the pirn or cop to an oval or approximately
square shape after it leaves the spindle so that while containing a greater
quantity of yarn it will fit the ordinary shuttle or a shuttle of no greater depth.
In carrying out the invention as applied to linen yarn, the yarn is spun onto thin
or flexible tubes preferably paper and before or after being dried they are compressed
in a suitable press or between rollers, and in the case of the oval pirn until the inner
sides of the tube are brought almost close together or only enough room is left for
the insertion of the shuttle spring or peg.
This invention will be found applicable for pirns or cops which are spun or rewound
in frames which have thick spindles, or in which metal or wooden tubes are used on
the spindles such as throstle or ring frames.
In a mule cop which is spun upon a thin spindle no appreciable advantage would
take place.
Dated this 16th day of November 1889.
WM. P. THOMPSON & Co.,
6, Bank Street, Manchester, Patent Agent.
COMPLETE SPECIFICATION.
Improvements in or relating to the Preparation of Pirns or Cops of
Yarn for Weaving.
I, JOSHUA VALENTINE EVES, of the Forth River Mills, 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 :-
This invention relates to the preparation of cops or pirns of yarn spun or rewound
for the shuttle.
In the weaving of fine cambrics and similar fine cloth from linen or other yarn it
is desirable to open the shed in the loom as little as possible so that the warp threads
shall not be strained. The shuttles as at present made are as flat as practicable to
carry pirns with any reasonable quantity of yarn and these to enable them to carry a
sufficient quantity of yarn are long but of a small diameter when full.
The object of this invention is to provide for the use in a shuttle of ordinary depth
of a pirn wound to a much greater diameter than those usually employed

page_text: and of such diameter as will be
the
most economical to produce or
converse to provide for the use of a much shallower shuttle with a pirn of the
size at present employed.
It consists essentially in compressing the pirn or cop after it leaves the spindle to
an oval or approximately oval shape in cross section or so that its dimension will be
greater in one direction than the other so that while containing a greater quantity of
yarn it will fit into the ordinary shuttle or a shuttle of no greater depth or while
containing an equal quantity of yarn will fit into a much shallower shuttle.
In the drawing annexed
Fig. 1 shows an elevation.
Fig. 2 a sectional plan of cop treated in accordance with my invention.
Figs. 3 and 4 elevation and sectional plan respectively of cop as it is spun or
woven.
As applied to linen yarn the cop A is spun in the usual way upon a pirn B with a
thin flexible paper tube preferably of the form shown in the Specification of Letters
Patent applied for by me No. 18,592 of 1889. When the cop of yarn A is removed
from the pirn B it is passed into a press or between a pair of rollers provided to
receive it by which means it is compressed on two sides until it assumes an oval or
approximately oval shape and until the inner sides of the flexible paper or other tube b
are brought almost close together or only room sufficient is left for the insertion of the
shuttle spring or peg.
This invention will be also found applicable to other pirns or cops which are spun
or rewound in frames which have thick spindles or in which inetal or wooden
tubes are used on the spindles from which the cops are removed without being
reeled.
In a mule cop which is spun upon a thin spindle no very appreciable advantage
would take place.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
A cop or pirn of yarn prepared for insertion into the shuttle of a loom by
being compressed on two sides so as to assume an oval or approximately oval shape in
cross section or so that its dimension shall be greater in one direction than the other
substantially as and for the purpose described.
Dated this 15th day of August 1900.
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WM. P. THOMPSON & Co.,
Manchester, Liverpool, and London, Patent Agents.