similar Fibres in the Form of Pirns or Cops.
Year: 1887

page_text: Date of Application, 28th Nov., 1887
Complete Specification Left, 25th Aug., 1888
Complete Specification Accepted, 28th Sept., 1888
similar Fibres in the Form of Pirns or Cops.
JOSHUA VALENTINE EVES of Brooklands, Knock in the County of Down Ireland
Mill Manager do hereby declare the nature of this invention to be as follows:-
These improvements relate to the spinning of wet spun flax and similar yarns in the
form of pirns and consist of arrangements whereby it is made practicable to spin wet
yarns on pirns.
The arrangements whereby it is made practicable to spin wet flax and similar yarns
on pirns on what are known as wet spinning frames in the flax trade consist in making
the amount of drag upon the bobbin or pirn vary continually according to the position
of the traverse the two motions being synchronous so that the amount of drag is varied
according to the diameter of the part upon which the yarn is being wound and so an
approximately uniform tension is given to the yarn whilst it is being spun and a
regular compact pirn is produced.
By making wet yarns on a pirn during the process of spinning the yarn can be
unwound or drawn off by the end of the pirn instead of being drawn off at a tangent
and necessitating the revolution of the bobbin which is the usual course when the
yarns are spun upon bobbins.
By preference the traverse is different in speed during its ascent and descent so as
to more effectually bind together the layers of yarn and also to facilitate the finding of
the end in case of a break either in spinning or the subsequent unwinding during the
process of reeling weaving or winding on to spools.
Dated this 296th day of November 1887.
JOSHUA VALENTINE EVES.

page_text: Improvements in the Spinning of Wet Spun Yarns of Flax and
similar Fibres in the Form of Pirns or Cops.
JOSHUA VALENTINE EVES of Brooklands Knock County Down 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 :-
These improvements relate to the spinning of wet spun flax and similar yarns in the
form of pirns and consist of arrangements whereby it is made practicable to spin wet
yarns on pirns.
The arrangements whereby it is made practicable to spin wet flax and similar yarns
on pirns on what are known as wet spinning frames in the flax trade consist in making
the amount of drag upon the pirn or cop vary continually according to the position of
the traverse the two motions being synchronous so that the amount of drag is varied
according to the diameter of the conical part upon which the yarn is being wound and
so an approximately uniform tension is given to the yarn whilst it is being spun and a
regular compact pirn is produced.
By making wet yarns on a pirn during the process of spinning the yarn can be
unwound or drawn off by the end of the pirn instead of being drawn off at a tangent
and necessitating the revolution of the bobbin which is the usual custom when the
yarns are spun upon bobbins.
By preference the traverse is different in speed during its ascent and descent so as
to more effectually bind together the layers of yarn and also to facilitate the finding
of the end in case of a break either in spinning or the subsequent unwinding during
the process of reeling weaving or winding on to spools.
Such being the nature and object of my said invention the following is a complete
description of the same reference being had to the accompanying drawings in which
Fig. 1 is a front elevation of so much of an ordinary wet spinning frame as is necessary
to illustrate apparatus for carrying my invention into practice.
Fig. 2 is an end view of Fig. 1 partly in section.
Fig. 3 is plan of part of the builder rail shewing positions of the drag bands.
At 1 and 2 are the fixed rails which support the spindles 3. At 4 is the builder
rail carried on the slide rods 5 which receive their up and down vertical motion from
the lifter shaft 6 through the intervening parts 7. 8. and heart 10 these being the
ordinary contrivances for giving the traverse to the builder rail 4. At 11 is a builder
strip carried on one side of the builder 4 and being slotted at 12 so as to admit of the
endwise to and fro motion 13 is the drag band and 14 weight the end of the band is
attached to the other side of the builder 4 to that of the weight 14. The builder
strip 11 is not serrated on the upper edge as usual but is serrated on its outer face.
The drag band 13 being extended from its fixed end to the builder strip-11 so as to be
in contact with the groove in the pirn and the amount of bearing of the cord 13 upon
the pirn regulating the amount of drag.

page_text: For the purpose of making the amount of drag upon the pirn vary continually
according to the position of the traverse the builder strip 11 is connected to the
lever 15 working on a fulcrum 16 carried up and down on one of the builder rods 5
the opposite end of the lever 15 being connected by rod 17 to a bell crank lever 18
which receives motion from the lever 19 connecting rod 20 lever 9 from the heart 10
thus the motions of the traverse and of the drag band are synchronous so that the
amount of drag is changed and varied not merely for each layer being wound which I
am aware is not new but the drag is adjusted changed and varied according to the
diameter of that part of the conical surface of the pirn on which the yarn is being
wound and an approximately uniform tension is given to the yarn whilst it is being
spun and a regular compact pirn is produced.
"
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
The improvements in spinning described secured by imparting a constantly changing
and varying amount of drag to the base of the pirn according to the part and diameter
of the pirn on which the yarn for the time being is being wound such variation being
effected by mechanism such as herein described and illustrated or any modification
thereof.
1
13
1000