Improvements in Machines for Winding Yarn.
Year: 1886

page_text: Date of Application, 9th Mar., 1886.
Complete Left, 8th Dec., 1886.
Complete Accepted, 11th Jan., 1887.
Improvements in Machines for Winding Yarn.
I, JAMES HENRY WOODWARD of Leo Works, Nottingham, Hosiery Machinist do
hereby declare the nature of this invention to be as follows:-
In all ordinary engines for winding yarn a less number of yards of yarn per
minute is wound when the yarn is being wound on to the small end of the cops or
bobbins than when it is being wound on to the large end. When the yarn is being
laid on to the larger end the momentum given to the swifts or runners which carry
the hanks or skeins causes the yarn to be given off quicker than the bobbins can take
it up when the yarn is being laid on to their smaller end and the yarn is thereby
caused to overlap.
The object of my invention is to provide a simple and effective means for remedying
this evil by gradually increasing the speed at which the cops or bobbins are driven as
the thread guides travel towards their smaller ends and for gradually decreasing the
speed as they travel to the larger ends.
For this purpose in order to give motion to the main shaft of the machine from
which motion is transmitted by bands or otherwise to the spindles of the several
bobbins I fix upon the main shaft a friction wheel the rim of which is circular in
cross section and I drive this wheel by gripping a portion of its circumference between
two revolving discs mounted side by side upon a short intermediate shaft which is
parallel with the main shaft and which can be moved towards or away from it so as
to vary the speed at which the discs drive the wheel. This short intermediate shaft
I carry by lever arms one of which has attached to it a truck that resis on a revolving
cam which raises and lowers it. The cam may be on a short shaft at one end of the
machine at right angles to the main shaft and driven slowly from it-this same shaft
having also upon it the cam used for controlling the to and fro traversing movement
of the thread eyes.
The lever arins which carry the short intermediate shaft above mentioned I make
to turn loosely upon the shaft on which the driving wheel which gives motion to the

page_text: intermediate shaft revolves. One of the discs I fix on the intermediate shaft and the
other I cause to be pressed towards the fixed disc by a spiral spring-I also allow the
intermediate shaft to play endwise a short distance in its bearings so that both discs
may bear equally against opposite sides of the rim of the friction wheel.
The arrangement might be reversed and the friction wheel with the circular rim be
on the intermediate shaft and the pair of nipping discs be upon the main shaft.
In some cases also when it is required to drive the machine at a greater average
speed than at others a similar arrangement of driving gear may be used for driving
the intermediate shaft and be set by hand. Or the arrangement may be used only for
setting the machine by hand to allow of its being driven at different speeds.
CARPMAEL & Co.,
Agents for the Applicant.

page_text: I JAMES HENRY WOODWARD of Lee Works, Nottingham, Hosiery Machinist 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:
In all ordinary engines for winding yarn a less number of yards of yarn per
minute is wound when the yarn is being wound on to the small end of the cops or
bobbins than when it is being wound on to the large end. When the yarn is being
laid on to the larger end the momentum given to the swifts or runners which carry
the hanks or skeins causes the yarn to be given off quicker than the bobbins can take
it up when the yarn is being laid on to their smaller end and the yarn is thereby
caused to overlap.
The object of my invention is to provide a simple and effective means for remedying
this evil by gradually increasing the speed at which the cops or bobbins are driven
as the thread guides travel towards their smaller ends and for gradually decreasing
the speed as they travel to the larger ends.
For this purpose in order to give motion to the main shaft of the machine from
which motion is transmitted by bands or otherwise to the spindles of the several
bobbins I fix upon the main shaft a friction wheel the rim of which is circular in cross
section and I drive this wheel by gripping a portion of its circumference between two
revolving discs mounted side by side upon a short intermediate shaft which is parallel
with the main shaft and which can be moved towards or away from it so as to vary
the speed at which the discs drive the wheel. This short intermediate shaft I carry
by lever arms one of which has attached to it a truck that rests on a revolving cam
which raises and lowers it. The cam may be on a short shaft at one end of the
machine at right angles to the main shaft and driven slowly from it, this same shaft
having also upon it the cam used for controlling the to and fro traversing movement
of the thread eyes.
The lever arms which carry the short intermediate shaft above mentioned I make to
turn loosely upon the shaft on which the driving wheel which gives motion to the
interinediate shaft revolves. One of the discs I fix on the intermediate shaft and the
other I cause to be pressed towards the fixed disc by a spiral spring-I also allow the
intermediate shaft to play endwiso a short distance in its bearings so that both discs
may bear equally against opposite sides of the rim of the friction wheel. The
arrangement might be reversed and the friction wheel with the circular rim be on
the intermediate shaft and the pair of nipping discs be upon the main shaft.
Figure 1 of the drawings hereunto annexed is an end elevation and Figure 2 a part
plan view of an ordinary winding frame with my improvements applied to it.
A is the main shaft from which motion is given to the various parts of the machine-
on it is fixed the wheel B by which it is driven-C.C are two discs between which
the rim of the wheel B which is circular in cross section is grasped. The surfaces of
the discs which are towards one another are slightly coned as shown in the cross
section of the discs and wheel B at Figure 5. D is an intermediate shaft upon

page_text: which the discs C Care mounted--it is carried by a lever arm E which is free to
turn around the driving shaft F. On the driving shaft is a band pulley G which has
fast with it a toothed wheel H-this toothed wheel gears with a toothed wheel I which
is fast with the disc C¹ and shaft D.
The disc C is free to slide end wise on a key on this shaft and is pressed against the
rim of the wheel B by a spring J as shown in Figure 2. K shown separately at
Figure 4 is a heart shaped cam on a shaft L it is driven slowly by a worm O on the
axis A gearing into a worm wheel P fast upon the shaft.
On the heart shaped cam rests a truck or bowl N carried by a fork M which hangs
down from the end of the lever arm E-the intermediate shaft D is thereby brought
nearer to or further from the main shaft A as the cam revolves and in this way the
speed of the main shaft is alternately increased and decreased.
Qis the shaft for raising and lowering the yarn guides R, this shaft receives its
motion in the ordinary manner from a cam K fixed on the shaft L-the shaft having
upon it an arm E' from which a fork M descends and carries a bowl N¹ which rests
on the cam.
S are the bobbins driven by bands T passing over grooved pulleys U on the main
shaft A-W W are runners which carry the hanks in the ordinary manner.
The heart shaped cams K K' are as shown at Figure 1 both fixed upon the shaft L
with their points on the same side of the shaft and on parallel radial lines so that as
the thread guides are raised towards the smaller ends of the cops the axis of the
discs CC is moved away from the main axis A and the main axis is driven at a
quicker rate whilst when the thread guides travel downwards towards the larger ends
of the cops the speed of the main axis is reduced.
Having now particularly.described and ascertained the nature of my said invention
and in what manner the same is to be performed I declare that what I claim is
1. Giving motion to the main axis of winding machines by means of two coned
discs which nip between them the rim of a wheel whilst at the same time the distance
between the axis on which the discs are 'mounted and the axis on which the wheel is
fixed is increased or decreased as the thread guides are moved from' one 'end "of the'
cop to the other.
2. A machine for winding yarn constructed substantially as herein before described
and illustrated in the drawing annexed.