Improvements in Machines for Winding Yarns and Threads.
Year: 1895

page_text: PROVISIONAL SPECIFICATION.
Improvements in Machines for Winding Yarns and Threads.
I WILLIAM INGRAM JAMES, of Green End House, Stafford, in the County.of
Stafford, Engineer, do hereby declare the nature of this invention to be as
follows:-
My improvements are intended to be applied to those machines which are used
for winding yarn from hanks or cops on to conical shaped bobbins.
In these machines it is a well known drawback that when the bobbins revolve
at a uniform speed the rate at which the yarn is wound is much greater at the
larger diameter of the bobbin than at the smaller.
To avoid this I have devised a means whereby the speed of revolution of the
bobbin shall increase as the yarn approaches the smaller diameter in the process of
winding and this same speed of revolution of 'the bobbin shall again decrease as the
yarn is led on to the larger diameter.
I attain this result in the following manner :-
I employ two parallel shafts. One is driven in any usual manner, and in its
turn drives the second shaft by means of toothed or friction gearing or by belting
as may be most convenient.
Upon this second shaft I place at convenient intervals a series of wheels which
drive each one a bobbin spindle by means of the friction between the periphery of
the wheel and the surface of a disc lying against it. This disc is fastened upon
the spindle carrying the bobbin upon which the yarn is to be wound.
By means of suitable gearing which may consist of a worm, wheel, cam and
connections driven from the first motion shaft I cause the second motion shaft to
move in such manner that the wheels fast upon it are carried to and fro across
the surface of the bobbin spindle friction discs. As the wheels approach the axes
of these friction discs the speed of rotation of the discs and bobbin spindles will
be increased and vice versa as the wheels through the to and fro motion of the
second motion shaft recede from the axes of rotation of the friction discs, the speed
of rotation of these will be diminished.
To the gearing which causes the second motion shaft to move to and fro with
regard to the friction discs I connect suitable mechanism to cause the guide which
leads the yarn on to the bobbin to move in the direction of the axis of the bobbin
over that part of the bobbin on which the yarn is being wound so that when the
speed of rotation of the bobbin is greatest the yarn guide is opposite to the
smaller diameter of the cone of yarn being wound and as the speed of rotation of
the bobbin decreases as before described the yarn guide is moved gradually towards
the larger diameter of the cone of yarn.
The movement of the yarn guide lengthwise of the bobbin being synchronous
with that of the wheels across the face of the friction discs the speed at which the
yarn is laid on to the conical bobbin is constant and the tension on the yarn is
therefore uniform.
Dated this 14th day of February 1895.
$

page_text: Improvements in Machines for Winding Yarns and Threads.
I WILLIAM INGRAM JAMES, of Green End House, Stafford, in the County of
Stafford, 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 :—
My improvements are intended to be applied to those machines which are used
for winding yarn from hanks or cops on to conical shaped bobbins.
In these machines it is a well known drawback that when the bobbins.revolve aţ
a uniform speed the rate at which the yarn is wound is much greater at the larger.
diameter of the bobbin than at the smaller.
To avoid this I have devised a means whereby the speed of revolution of the
bobbin shall increase as the yarn approaches the smaller diameter in the process of
winding and this same speed of revolution of the bobbin shall again decrease as the
yarn is led on to the larger diameter.
I attain this result in the following manner :-
I employ two parallel shafts. One is driven in any usual manner, and in its
turn drives the second shaft by means of toothed or friction gearing or by belting
as may be most convenient.
Upon this second shaft I place at convenient intervals a series of wheels which
drive each one a bobbin spindle by means of the friction between the periphery of
the wheel and, the surplus of a disc lying against it. This disc is fastened upon
the spindle carrying the bobbin upon which the yarn is to be wound.
•
I
By means of suitable gearing which may consist of a worm, wheel, cam and
connections driven from the first motion shaft. I cause the second motion shaft to
move in such manner, that the wheels fast upon it are carried to and fro across the
surface of the bobbin spindle friction, discs. As the wheels approach the axes of
these friction discs the speed of rotation of the discs and bobbin spindles will be
increased and vice versa as the wheels through the to and fro motion of the second
motion shaft recede from the axes of rotation of the friction discs, the speed of
rotation of these will be diminished.
To the gearing which causes the second motion shaft to move to and fro with..
regard to the friction discs I connect suitable mechanism to cause the guide which
leads the yarn on to the bobbin to move in the direction of the axis of the bobbin
over that part of the bobbin on which the yarn is being wound so that when the
speed of rotation of the bobbin is greatest the yarn guide is opposite to the
smaller diameter of the cone of yarn being wound and as the speed of rotation of
the bobbin decreases as before described the yarn guide is moved gradually towards
the larger diameter of the cone of yarn.
The movement of the yarn guide lengthwise of the bobbin being synchronous
with that of the wheels across the face of the friction discs the speed at which
the yarn is laid on to the conical-bobbin is constant and the teusion on the yarn is
therefore uniform.
My invention is illustrated by the accompanying drawings in which :-
Fig. 1. is a front view of the upper part of a winding machine.
Fig. 2. is a front view of the lower part of the same.
Fig. 3. is an end view of the same.
The drawings shew two spindles only but any convenient number may be
employed.
? :
The frame a. carries a driving shaft b. in the bearings 6ª 6ª and upon this shaft b.
are mounted an idle pulley 63 driving pulley 6 pinion 6 and worm 6° which when
the machine is in motion revolve in the direction shewn by the arrows.
No text detected.

page_text: The worm gears into a wheel c. which is mounted on a cross shaft c¹ carried in
a bearing and provided with a cam c³.
'
The cam c is for the purpose of giving a rising and falling movement to the
yarn guides which is accomplished as follows:-
Upon a shaft d. carried in a bearing d' upon the frame a. is mounted a lever d²
furnished with a cam roll d³ which lies, upon the cam cand supports at its free
end d' a vertical rod d' through the intervention of a roll do.
The rod d is guided in bearings dds in which it is free to rise and fall and
carries at its upper end a horizontal bar d' upon which are the brackets do which
carry in a manner hereinafter further referred to the yarn guides c*.
Rotation of the cam will cause the lever d² rod d bar d and -yarn-guides.cª
to move up and down.
The bobbins e. upon which the yarn. f. is to be wound are carried upon the
upper ends of vertical spindles e' which are free to revolve in bearings ee carried
by the frame a. and at their lower ends are provided with friction discs et which
are supported upon friction wheels e*.
The wheels are for the purpose of revolving the discs e* and are mounted
upon a shaft e carried in bearings ee in the frame a. and provided with a
pinion which gears into the pinion 60 already described as being mounted upon
the driving shaft b. Rotation imparted to the driving shaft b. is thus communicated
to the shaft & wheels discs spindles e and bobbins e.
28
In order that the speed of revolution of the bobbins may be increased when
the yarn guides c rise towards the smaller diameter of the wound yarn and
decreased when the yarn guides et fall towards the larger diameter of the same a
to and fro sliding movement is given to the shaft e through its bearings e es so
to cause the wheels e to move horizontally alternately nearer to and further from
the vertical axes of the discs e. The nearer the wheels e approach to the axes of
the discs the faster the spindles e' will turn and the nearer the wheels e approach
to the edges of the discs et (as shewn in the drawings) the slower the spindles e¹
will turn.
This to and fro movement of the shaft e is derived from the same cam c³
which imparts the rising and falling movement to the yarn guides and is obtained
by mounting a forked lever 10 upon the shaft d. (which is oscillated by the
movement of the previously described lever d³) and adapting the forked lever eto
to engage with a grooved collar e" upon the shaft e. By this arrangement the up
and down movement of the yarn guides e always synchronises with the change of
speed of revolution of the bobbins e. It will be observed that the teeth of the
pinion are of extra width to allow of the sliding movement of the pinion e.
The yarn f. may be led to the bobbin e. from hanks for from cops f³ (not
shewn in the front view) the former running off from the reels ff* through the
eyes to the guides and the yarn f. commences to wind upon the bobbins
between the large diameter g. and the small diameter g'.
As the bobbins fill the yarn f. is required to wind with a conical surface parallel
to the cone surface g³ until when the bobbins e. are quite full the yarn f. occupies
the space about the bobbins represented by the dotted lines 98 9¹ 9ª 9º. This
gradual filling up of the bobbins e. with yarn requires that the yarn guides of shall
be gradually raised relatively to the rising and falling bar d³ and in order that
this may take place the following arrangement is made use of :-
The brackets do carry vertical screws h. upon which are mounted inverted
truncated cones h' which by revolution may be made to rise or descend upon the
screws h. These cones h by means of collars h² carry the yarn guides which
are guided and prevented from turning by vertical rods ³.
The cones when in their lowest positions (as drawn) lie with their conical sides
in contact with the conical sides of the bobbins e. and maintain the yarn guides c²
level with the largest diameters thereof. As the bobbins e. turn and the yarn f.
winds on the action of the cam cruises the bar d and screws h. which carry up
with them the cones and yarn guides c which latter guide the yarn f. evenly up
points 9. The cam then allows the screws h. to descend
the slopes ² to the

page_text: 1-4
again to their lowest positions just before arriving at which the cones-h' touch upon
the yarn now wound upon the bobbins e. which by their revolution act frictionally
upon the cones so as to turn them a triflo and so causes them to mount a slight
distance higher on the screws h. carrying up with them the yarn guides c¹.
As the winding proceeds up and down the slopes by the revolution of, the
bobbins e. and the rising and falling of the yarn guides the yarn thickens upon
the slopes o³ and as at each descent of the cones ¹ they come in contact with this
yarn so as to be revolved a little they are again and again caused to rise slightly
upon the screws h. thereby carrying up the yarn guides of relatively to the bar d
until the bobbins e. are full.
The bobbins e. may be stopped from revolving by means of levers.. which are
mounted on pivots carried from the frame a. and at their ends take under
collars upon the spindles e. By depressing the ends of the levers . the
spindles & are raised so as to lift the discs e away from contact with the wheels.e.
I
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-1
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.
.די
The construction of machines for winding yarns and threads as described and
illustrated in the accompanying Specification and drawings..
Dated this 14th day of November 1895.