Improvements in and applicable to Machines for Winding Yarns.
Year: 1894

page_text: Date of Application, 21st July, 1894
Complete Specification Left, 20th Apr., 1595-Accepted, 20th July, 1895
PROVISIONAL SPECIFICATION.
Improvements in and applicable to Machines for Winding Yarns.
CHARLES WILLIAM HOLLIS 33 Glasshouse Street Nottingham Engineer do
hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in and applicable to machines for winding
silk cotton and other yarns, and has particular reference to the winding machines
used in the hosiery trade and known in that trade as winding engines."
"
Now the object of the present invention is the provision of means for winding the
yaru on the bobbin or spool at an equal tension whatever be the variation in
diameter of the bobbin or spool during the filling of the same, also means for
enabling the number of motions made by the distributing rod during the filling of
the bobbin or spool to be readily varied according to the "number" of the yarn
being wound; and also in the simplification and general arrangement of the
machine.
In the machines now used in the hosiery trade the bobbin or spool is always
driven at the same speed with a result that the yarn is wound tighter on one part
than on the other part and when the yarn is wound from hanks there is a constant
overrunning of the same. Now the first part of this invention relates to means for
overcoming the above objections and is accomplished by driving the machine by a
variable frictional drive and varying the speed of the same by means of a cam
which is driven from the distributing rod shaft, and which acts upon the friction
drive through suitable levers and connections.
The second part of this invention relates to means for varying the number of
motions made by the distributing rod during the filling of the bobbin or spool
without the use of change wheels as at present. According to this part of the
invention the spindle driving shaft is fitted with an arm capable of oscillating on
the same and carrying a cam which is driven by chain gearing from the spindle
driving shaft, and which is itself used for giving motion to the distributing rod
through a lever pivotted on the oscillating arm and suitable connections. The
oscillating arm is also fitted with a nut working into which is a screw driven from
the spindle driving shaft by suitable gearing and a variable friction drive. By
these means a constant amount of motion is given to the distributing rod, and the
position of the distributing rod relatively to the bobbin or spool varied, the speed
of such variation being regulated by the speed of the screw acting on the oscillating
arm.
The spindle driving shaft according to this invention is driven from the frictional
drive referred to in the first part of this invention, by means of chain gearing and
the cone pulleys now used are dispensed with. For varying the speed of the
machine as a whole independently of any variation in the speed of one part
relatively to another, the connections between the lever and frictional drive referred
to in the first part of this invention are provided with means for altering the
length of the same and thereby varying the relative positions of the parts forming
the friction drive.
Dated this 20th day of July 1894.
W. H. POTTER, Wh. Sc.,
Patent Agent, Nottingham, Agent for the Applicant

page_text: Improvements in and applicable to Machines for Winding Yarns.
CHARLES WILLIAM HOLLIS 33 Glasshouse Street Nottingham Engineer 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 and applicable to machines for-winding
cotton wool and other yarns, the said improvements being particularly applicable
to winding machines used in the hosiery trade and known in that trade as "winding
cagines."
"
In these winding machines the bobbin or spool is usually driven at a constant
speed during the. filling of the same with a result that the velocity of the yarn is
constantly varying and the yarn is wound upon the bobbin or spool at varying
tensions. This causes the.hanks to
" overrun which is objectionable as it causes
breakages and loss of time. The present machines are so constructed that there
are no ready and simple means for varying the speed of the bobbins, or the velocity
of the traversing rod, or its number of motions, as is required for different yarns.
Now the object of the present invention is to provide means for winding the
yarn on to the bobbin or spool at a constant velocity and tension, and for enabling
the velocity of the traversing rod and its number of motions to be varied according
to the "number" or count of the yarn being wound, and also means for
enabling the speed of the machine as a whole to be varied as required.
66
"
According to the first part of this invention the traversing rod spindle or shaft,
which is oscillated by a cam and levers, gives motion to a lever which depresses a
cam shaped lever through varying distances for equal movements of itself. This
cam shaped lever is connected to a frictional driving gear through which the
bobbin driving pullies are driven, and the speed of the bobbins is varied in a
ratio which is practically inversely as the diameter of the bobbin. Means are also
provided by which the position of the traverse of the traversing rod may be varied
according to the portion of the bobbin to be wound, and these means are actuated
by a disc and roller so that the number of traverses may be varied according to
.the "number" or count "of the yarn being wound.
"
In order however that this invention may be understood and carried into effect,
one sheet of drawings is attached hereto, and such drawings are referred to in the
following detailed description.
Fig. 1 is a drawing of a bobbin illustrating the requirements to be fulfilled by
.this invention.
Fig. 2 is an elevation of the mechanism outside the end standard of the
machine.
Fig. 3. is a sectional elevation of the mechanism inside the end standard of the
machine.and
Fig. 4 is a front sectional elevation of the mechanisms shown in Figs. 2 and 3.
The wound bobbin or spool a Fig. 1. is shown as an example of what is required
to be done by the mechanisms: hereinafter to be explained. The yarn traversing
rod has a motion equal to the distance between the lines a¹ and a³, and in order
that the velocity of the yarn may be constant during the winding of the first' layer
the speed of the bobbin has to be varied from about 232 revolutions at a', to about
325 revolutions at a². Now the traversing rod has a constant amount of motion
but as the bobbin is being filled such motion takes place in a different position
relatively to the bobbin, and the lower end of the bobbin gradually increases in
size while the upper end of the bobbin decreases in size as at the line of winding a*a*.

page_text: The alteration in the diameters of the bobbin at the extremities of the motion · of
the traversing rod varies until at the last layer as a the number of the revolutions
of the bobbin vary from about 100 at a to 437 at a. In addition to the above
variations in the number of revolutions made by the bobbin it is also necessary that.
the total number of revolutions made by it as the traversing rod moves from one
extreme position to the other, may be varied according to the thickness or "count".
of the yarn being wound, and it is evident that this number of revolutions must be
varied inversely as the thickness of the yarn.
1
The bobbins a are mounted on spindles a' which run in bearings a³ and are,
provided with cord pulleys a to which motion is imparted by pullies on a shaft not
shown but arranged similarly to corresponding parts on the ordinary machine..
Instead of the cord pullies a' the spindle may be driven by discs, or by any other
well known method.
The machine is driven by frictional driving gear preferably of the kind shown in
Specification No. 14115 A.D. 1887, although other frictional drives, conical pullies,
or similar means may be used for the same purpose.
The traversing rod 6 or its equivalent is carried by arms from a shaft 6 to
which an oscillating movement is imparted by a cam through a lever b, link 6°
and a lever 6 which is fast on the shaft 6 and is provided with. a slot to allow of.
the amount of oscillation being varied. The cam is attached to a toothed
wheel c which is driven by a wheel c¹ on a shaft d which revolves at a constant
speed, or instead of toothed wheels c and c¹ chain gearing may be used. The
lever b, cam 63 and wheel c are carried by a lever di whose boss is fitted to
oscillate on the shaft d and on an extension of the bearing d³.
With this arrange-
ment it will be evident that if the lever d' be moved to or from the bobbin a the
traversing rod b will be raised or lowered independently of the motion given to it
by the cam b³. In order to obtain this result the upper end of the lever d' is
provided with a nut d' capable of turning in the end of the lever d'. Working in
this nut is a screw e carried by a bearing e which is pivotted to the standard and
the screw is driven by a worm ea and wheel e, the worn receiving its motion from
the shaft d through a plate e, friction roller e and a shaft e which is carried in >
bearings e and the latter being provided with means for regulating the pressure
between the disc and roller. The roller e' is fitted to slide upon and turn with the
shaft and its relative position with regard to the centre of the disc is adjusted by
a lever 10 which is pivotted at ell and held in its placed position by means such as
the plate e and a pin which is passed through a hole in the lever and the plate,
and if the holes in the plate be numbered they afford a ready means of varying the
movements of the rod b according to the ". count of the yarn being wound. The
screw e is extended to the front of the machine and fitted with a lever or wheel els
for winding back the lever d' after the bobbin has been filled, or as a means for
regulating the position at which the traversing rod commences to lay the yarn on
the bobbin. The nut d and bearing are pivotted to the lever d' and standard
respectively to allow of the screw adjusting itself during the movement of the
lever d', and the teeth of the worm e and wheel e' are suitably shaped to allow of
the movement of the wheel about the pivot of the bearing e¹.
"
For varying the speed of the bobbin so as to wind the yarn at a constant tension
a cam shaped lever is used. This lever is pivotted at fi and by the link f' and
other suitable links and levers is connected to the variable driving mechanisms, the
connections referred to being provided with means such as a screw coupling for
varying the speed of the bobbin independently of the variation required during the
winding of the same. On the shaft there is a lever f loosely mounted thereon
and fitted with an axle upon which a lever is mounted. This lever is provided
with a toothed wheel or has a number of teeth f* formed upon it, and these teeth
gear with a wheel f fast on the end of the shaft. The oscillations of the shaft b³
are thus given to the lever f causing a truck f" to act upon the lever f and depress
it, the amount of depression depending upon the shape of the lever which is

page_text: designed according to the variation in speed required, and to the movement required
to be given to the variable drive in order to get such variation in speed. In the
bobbin shown in Fig. 1 and previously referred to as an example of what variation
in speed is required, it will be noticed that each layer of yarn requires a different
range in variation, and to obtain this the truck is caused to oscillate over a
different portion of the lever f by connecting the lever f' to the lever d' by a
link and moving the lever d¹ by the screw e as previously explained. It will be
noticed that the lever is bent at the axle of the lever and this is done in
order that the oscillations of the levers may practically be equal on each side of a
centre line.
In addition to the parts described as means for carrying out this invention the
machine is provided with runners or means for carrying the yarn to be wound,
damping roller and other usual accessories.
One of the objects of the invention herein described is stated to be the variation
in the velocity of the traversing rod and its number of motions according to the
"number" or "count" of the yarn to be wound, and this may be supposed to
mean, that the number of revolutions made by a bobbin may be so varied, during
a single oscillation of the traversing rod, that the yarn is wound upon the bobbin
in a similar way to the thread on a bobbin of ordinary sewing thread. It will be
noticed however that the cam actuating the traversing rod is designed to move the
rod slower when at the bottom of its traverse than at the top, with a result that
the yarn is wound upon the bobbin thicker at the bottom than at the top which is
necessary to produce a bobbin of the shape shown. The real meaning of this part
of the invention is that the bobbin makes a larger total number of revolutions
during the filling of the same when fine yarn is being wound than it does when
coarser yarns
are being wound, consequently the traversing rod makes more
oscillations and is a longer time before it oscillates in its extreme position near the
top of the bobbin.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. In winding machines of the kind referred to, oscillating the traversing rod by
means of a cam and lever mounted upon a second lever which is capable of being
moved to and fro for the purpose of changing the position of the space traversed
by the traversing rod relatively to the bobbin substantially as herein set forth.
2. In winding machines of the kind referred to, the combination with the cam
and lever actuating the traversing rod, of means such as are herein shown and
described for moving the traversing rod independently of its oscillating movement
and for varying the speed of such movement for the purposes set forth.
3. In winding machines of the kind referred to a traversing rod oscillated by a
cam and lever carried by a second lever which can be moved on its axle by a screw
driven by worm gearing from a variable friction drive substantially as shown and
described in the accompanying drawings and Specification.
4. In winding machines of the kind referred to, the driving of the bobbins by a
variable friction drive, and the combination with the same of means for varying
the speed of the bobbin for the purpose of ensuring the yarn being wound at a
constant velocity and tension.
5. In winding machines of the kind referred to the combination with variable
driving mechanism of a lever oscillated by the traversing rod shaft and arranged
to act upon a cam lever so shaped that the oscillation of the first mentioned lever
will vary the speed of the bobbin substantially as herein set forth.
6. In winding machines of the kind referred to, the combination of the mechanisms
specified in the preceding claim with the mechanisms employed for varying the
position of the oscillations of the traversing rod substantially as herein shown and
described.

page_text: 7. In winding machines of the kind referred to the combination and general
arrangement of the mechanisms herein shown and described for purpose set forth.
Dated this 18th day of April 1895.
W. H. POTTER, M.I.M.E.,
Patent Agent, Nottingham, Agent for the Applicant.