Improvements in Winding Machines for Yarns or Threads.
Year: 1899

page_text: Date of Application, 23rd Jan., 1899
Complete Specification Left, 30th Sept., 1899-Accepted, 20th Jan., 1900
Improvements in Winding Machines for Yarns or Threads.
I, THOMAS ALEXANDER BOYD, of the Firm of J. & T. Boyd, Shettleston Iron
Works, Shettleston, County of Lanark, do hereby declare the nature of this
invention to be as follows:-
My invention consists of improvements in means of tensioning and guiding
yarns and threads in the process of winding, also in "cups" for forming pirus
and cops.
"
One part of my invention relates to cups such as are used in pirn and cop
winding machines. With the view of obtaining a more equal pressure of the
yarn in the cup, and also to relieve the spindle from undue strain caused by
the cup not being in perfect alignment with the pirn and spindle. I make the
cups self-adjusting that is-I hold the "cup" loosely so that, during the com-
plete revolution of the pirn, the alignment may alter if necessary to adjust cup
and pirn to each other. In one arrangement which I employ upon pirn wind-
ing machines which have the spindles placed horizontally or nearly so I fix a
rail in front of the spindles with a hole exactly central to each spindle, or I fix
upon a rail a bracket with such a hole and in these holes I place loosely the cups.
The cups are made internally to suit the pirn or cop and externally there is a
groove, preferably at the centre of the cup which fits loosely the hole in the rail
or in the bracket above referred to. The cups are cut open on the top or side
as is usual to allow the yarn to pass on to the pirn or cop.
Where the cups are
held at their centre, and not at the end, the hole in the rail or bracket requires
also to be cut open. The cup thus held loosely may be cushioned, by means of
a spring or otherwise. It will thus be understood that the cup not being
rigidly fixed will yield to any strain caused by the revolving pirn should the
spindle or pirn be out of truth or alignment..
Another part of my invention relates to a combined adjustable tension device
consisting of metal discs or plates pressed together by a spring and a traverse
guide arranged so as to tension the yarn as nearly as possible to the pirn or cop
thus allowing of a heavier tension than the yarn would otherwise stand. In
one arrangement applicable to pirn winders having the spindles horizontal or
nearly so I mount upon a rocking traverse shaft placed beneath the cups and
at right angles to the spindles, a bracket having at its upper end' a hollow part
which passes partly over the cup. In this hollow part and projecting out of
it is a stud and on the stud and chiefly within the hollow end of bracket is a
spiral spring. Above the spiral spring is a pair of hardened dish shaped metal
discs and above these a pair of lock nuts. The lock nuts are used to set and hold
the discs against the spiral spring just sufficient to press and tension the thread
as it passes between the discs, the convex faces of which lie together. The
thread coming from the front of the cup is thus pressed between the pressing discs,
and at the same time is guided by them or by the stud on which the discs are
mounted as it is wound by the cop or pirn. Similar combined thread tensioning and

page_text: traversing guides may be used for bobbin winding cheese winding and analogous
machines.
The
Another part of my invention relates to tension devices composed of a pair of
hardened dish shaped metal discs pressed together by a spring and held between
two metal washers the whole being mounted on a fixed polished rod
metal washer at one side of the spring is cup shaped so as to almost cover and
protect the spring while the washer at the other side is cup shaped enough to
bear at its outer edges on the disc which is pressed against it. The convex
faces of the pair of discs are pressed together more or less according as the metal
washers are fixed on the polished rod closer or wider apart.
יד
1000
"
Improvements in Winding Machines for Yarns or Threads.
I, THOMAS ALEXANDER BOYD, Engineer, Shettleston Iron Works, Shettleston,
County of Lanark, 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:
My invention consists of improvements in means of tensioning and guiding
yarns and threads in the process of winding also in " cups" for forming pirns
and cops.
Referring to the two accompanying sheets of drawings Figure I shews a side
elevation and Figure II a plan of a cup and bracket to hold same and tension
thread guide. Figure III shews a front elevation of same. Figure IV a sec-
tional view of the lock nuts and spiral spring of thread guide. Figure V & VI a
side, plan & a sectional view of tension device on stationary rod. The same
numbers refer to the same parts in the different figures.
66
"
One part of my invention relates to cups" such as are used in pirn and cop
winding machines. With the view of obtaining a more equal presure of the
yarn in the cup and also to relieve the spindle from undue strain caused by the
cup not being in perfect alignment with the pirn, and spindle I make the cups
self-adjusting, that is I hold the cup" loosely so that, during the complete
revolution of the pirn the alignment may alter if necessary to adjust cup and
pirn to each other. In one arrangement which I employ upon pirn winding
machines which have the spindles placed horizontally or nearly so I fix a rail in
front of the spindle with a hole exactly central to each spindle or I fix upon a
rail a racket 1, with such a hole and in these holes I place loosely the cups 2.
The cups 2 are made internally to suit the pirn or cop and externally there is a
groove 21 preferably at the centre of the cup which fits loosely the hole in the
rail or in the bracket 1 above referred to. The cups 2 are cut open on the top
or side as is usual to allow the yarn to pass on to the pirn or cop. Where the
cups are held at their centre and not at the end, the hole in the rail or bracket
requires also to be cut open. It will thus be understood that the cup not being
rigidly fixed will yield to any strain caused by the revolving pirn should the
spindle or pirn be out of truth or alignment.
Another part of my invention relates to a combined adjustable tension device,
consisting of metal discs or plates pressed together by a spring, and a traverse
guide arranged so as to tension the yarn as near as possible to the pirn or cop
thus allowing of a heavier tension than the yarn would otherwise stand. In
one arrangement applicable to pirn winders having the spindles horizontal or

page_text: nearly so I mount upon a rocking traverse shaft 3 placed beneath the cups 2
and at right angles to the spindles, a bracket 4 having at its upper end a chilled
part 4 which stands at the side of the cup. In this chilled part and projecting
out of it is a stud 5 and on the stud a spiral spring 6 a pair of hardened dish
shaped metal discs 7 and a pair of lock nuts 8 and 9. The lock nuts 8 and 9
are used to set and hold the spiral spring 6 against the discs 7 just sufficient to
press and tension the thread as it passes between the discs, the convex faces of
which lie together. The thread 14 coming from the front of the cup is thus
pressed between the pressing discs 7 and at the same time is guided by them
or by the stud on which the discs are mounted as it is wound by the cop or pirn.
Similar combined thread tensioning and traversing guides may be used for
bobbin winding, cheese winding and analogous machines.
Another part of my invention relates to tension devices composed of a pair of
hardened dish shaped metal discs 10 pressed together by a spring 11 and held
between two metal washers 12 and 13 the whole being mounted on
a fixed
polished rod 14. The metal washer 12 at one side of the spring 11 is cup shaped
so as to almost cover and protect the spring while the washer at the other side
is cup shaped enough to bear at its outer edges on the disc which is pressed against
The concave faces of the pair of discs are pressed together more or less accord-
ing as the metal washers are fixed on the polished rod closer or wider apart.
it.
Having now particularly described my invention and how it may be performed
I declare what I claim to be as follows:-
-
(1) In cop or pirn winding machines the mounting of cups substantially as
described with reference to Figures I II and III.
(2) In winding machines a combined tensioning and moving thread guide for
the purpose described.
(3) In pirn and cop winding frames a combined tensioning and moving thread
guide substantially as shewn and described with reference to Figures I II,
III & IV.
(4) In winding frames a stationary tensioning device in which the spring is
protected by a metal cup substantially as shewn with reference to Figure 6.
D
1000
T. A. BOYD.