Year: 1897

page_text: WILLIAM HAMILTON LAWLOR, Manager, HUGH TODD, Head Spinner, and
WILLIAM JOHN RANKIN, Engineer, all of The Braid Water Spinning Company,
Limited, Ballymena, Ireland, do hereby declare the nature of this invention to be
as follows:
To dry wet spun yarns when put in cross wound cylindrical rolls it is necessary
to thread the rolls on steam pipes inside a heated chamber.
And whereas it has been found difficult to withdraw the mandril from the cross
wound roll upon which it has been wound without tossing the yarn we have devised
the following plan to obviate the difficulty.
We use tubes of paper or other material as a base upon which to wind the yarn
and in order to have this tube perfectly cylindrical undamaged and ready to
receive the weavers warp bank mandril or pirn winders spindle we adopt a
collapsible metallic tube which is threaded inside the tube of paper or other
material.
This collapsible tube is simply a piece of metal bent or rolled to the proper
diameter the width of metal being less than the circumference of the circle to
which it is bent. The tube in section is therefore not a complete circle and being
made of thin metal is flexible. On the application of slight pressure it collapses
and is easily withdrawn leaving the paper tube in the roll which has in the mean-
time been dried.
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1008
We, WILLIAM HAMILTON LAWLOR, Manager, HUGH TODD, Head Spinner, and
WILLIAM RANKIN, Engineer, all of Braidwater Spinning Company, Ballymena,
County Down, Ireland, 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 improvements in the method of and means employed for
drying wet spun yarns when cross wound into cylindrical rolls. In drying these
cylindrical rolls of wet spun yarn they are threaded onto steam or other heated

page_text: pipes and it is necessary for such drying operation that the yarns should be formed
or wound on metallic tubes, preferably perforated. The tubes are too costly to
be allowed to remain in the rolls.
The object of this invention is to enable the metal tube to be removed from the
roll without entangling the yarn, and so permit the yarn being wound from the
centre of the roll if so desired. The invention consists of the use of a collapsible
metal tube as hereafter described.
Such being the nature and object of our said invention the following is a com-
plete description of same, reference being had to the annexed drawings, in
which:-
Fig. 1 is a view in elevation of the improved collapsible perforated metal tube.
Fig. 2 is an end elevation of a cylindrical roll wound or formed on a collapsible
metal tube.
Fig. 3 is a sectional view of the collapsible metal tubes mounted on a winding
frame spindle adapted to carry same.
According to this invention we employ a perforated collapsible metal tube 1
made of a piece of flexible sheet metal bent or curved to the required diameter
which is such that the edges 2-2 of the metal sheet do not meet. The metal tube 1
is mounted on a winding frame spindle made in two parts 3-4, the upper part or
half of the spindle having a collar 5 fixed to it, and in this collar 5 is received the
end of the lower part 4 of the spindle. On each part 3-4 of the spindle is fixed
a flange 6 and the collapsible tube 1 is carried by the flanges and the wet spun
yarn is wound or built thereon in the form of a cylindrical roll. When the roll is
completed the spindle 3-4 is withdrawn from either end of the collapsible metal
tube 1 which is left inside the roll and the latter is then placed on the heated tube
or pipe for drying purposes, and when said roll is dry the collapsible tube 1 can
by a slight pressure being applied so as to lessen its diameter by bringing the
edges 22 nearer together be easily withdrawn without in any way damaging its
internal bore. For some classes of yarn it may be desirable to cover the metal
tube with an outer paper tube which will be left inside the bore of the roll when
the tube is withdrawn.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is:
The use of a collapsible metal tube 1 as and for the purpose herein described and
substantially as illustrated by the annexed drawings.
Dotad this 23rd day of Hohmary 1898
:-
WILLIAM HAMILTON LAWLOR,
HUGH TODD,
WILLIAM RANKIN,
By their Agents, Brierley & Howard,
Penny Bank Chambers, Halifax.
WILLIAM HAMILTON LAWLOR,
HUGH TODD,
WILLIAM RANKIN,
By their Agents, Brierley & Howard,
Penny Bank Chambers, Halifax.