Improvements in Traverse Motions for Traversing the Yarn Guides in Machinery for Preparing and Spinning Textile Fibres.
Year: 1891

page_text: Date of Application, 15th May, 1891
Complete Specification Left, 31st July, 1891-Accepted, 5th Sept.,.1891
PROVISIONAL SPECIFICATION.
Improvements in Traverse Motions for Traversing the Yarn Guides
in Machinery for Preparing and Spinning Textile Fibres.
We JAMES THORP of the firm of J. and J. Hayes Limited of the Victoria Mills
Leigh in the County of Lancaster Cotton Spinners and WILLIAM ALLEN of
25 Church Street, Leigh, aforesaid, in the employment of the said firm do hereby
declare the nature of this invention to be as follows:-
Our said invention relates to the apparatus employed to give the requisite to and
fro motion to the guides which traverse the yarn in its passage between the drawing
rollers, as is well understood. Such traverse is imparted to the yarn to prevent the
wearing or nicking of the drawing rollers and our improved traversing motion
belongs to that type of apparatus which has for its object to vary the traverse and
so 'distribute the wearing effect of the reversals of the traverse. The gist of our
invention consists in the employment of a cam or disc with a cam face which while
revolving on its axis so as to give to 'the guide bar the requisite traverse due to its
cam face has at the same time a rocking motion imparted to it which continuously
alters the plane in which the cam face lies and therefore continuously alters
the points of reversal in the traversing of the yarn guides. In carrying our
invention into effect we mount the said cam or disc upon a driving axle or sleeve
by means of a flexible joint in such a manner that it shall freely rock or roll thereon
in all directions. For example we form the axle or sleeve with a spherically
shaped bearing and form a similarly shaped recess or bearing in the cam or disc
thus forming a ball and socket joint. A driving pin or key having sufficient free
play to provide for the rocking or rolling motion is employed to give a driving
connection between the ball and socket or any other suitable driving connection
may be made so long as the axle or sleeve revolves or drives the cam without
interfering in any way with its rocking or rolling motions. We also provide+a
movable abutment lying in contact with the smooth side of the cam or disc, the said
abutment consisting preferably of a revolving excentric or revolving excentrics
which is or are driven from the axle or sleeve carrying the cam by means of a worm
and worm wheel. As the excentric or excentrics revolve the cam or disc is tilted
or rolled upon the ball and socket joint thus continuously altering the inclination
of the plane in which the cam face works, so that the points of reversal of the yarn
between the drawing rollers are altered continuously. Instead of an excentric or
excentrics to constitute the shifting abutment as described we might utilise any
other means to constitute the said movable abutments. The usual or any other
suitable connections may be employed to transmit the movements of the cam.or
disc to the guide bar or rail.
Although we have referred to the flexible joint between the axle or sleeve
and the cam or disc as consisting of a ball and socket joint we wish it to be-under-
stood that we do not confine ourselves to this as any other suitable flexible joint
which would permit of the requisite rocking, or rolling motion of the cam or disc
might be employed.
Under another mode of utilising the ball and socket or flexible joint for the
purposes of our invention the abutment consists of a flat disc or washer bolted to
the end of the carrying spindle and bearing against a cam face on a toothed wheel
which is carried on a short sleeve.projecting from another toothed wheel of nearly
similar diameter which has a ball and socket or flexible bearing on the spindle.
The second wheel has a cam face which imparts the proper traverse through the
usual means to the guide bar and in addition the said second wheelis rolled or rocked
on the ball and socket or flexible joint by the change of position of the first wheel
and its cam face relatively to the fixed abutment disc or washer.
This change

page_text: takes place during the rotation of the two wheels which lie closely together and
are both driven from the same worm or pinion because of the differential number
of teeth in the peripheries of the two wheels, so that one of the wheels overtakes
the other thus changing the position of the cam face on the first wheel relatively
to the fixed abutment against which it works. Thus the two wheels rock or roll
on the ball and socket or flexible bearing and correspondingly increase or diminish
the traverse of the guide bars thus continuously varying the points at which the
reversal of the yarn takes place between the drawing rollers.....
COMPLETE SPECIFICATION.
Improvements in Traverse Motions for Traversing the Yarn, Guides
in Machinery for Preparing and Spinning Textile Fibres..
We JAMES THORP of the firm of J. and J. Hayes Limited, of the Victoria
Mills, Leigh, in the County of Lancaster, Cotton Spinners, and Wi ILLIAM ALLEN
of 25 Church Street, Leigh, aforesaid in the employment of the said firm 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 and accompanying drawings:-
Our said invention relates to the apparatus employed to give the requisite to and
fro motion to the guides which traverse the yarn in its passage between the
drawing rollers as is well understood. Such traverse is imparted to the yarnuto
prevent the unequal wearing or nicking of the drawing rollers and our improved
traversing motion belongs to that type of apparatus which has for its object to
vary the traverse and so distribute the wearing effect of the reversals .of.the
traverse. The gist of our invention consists in the employment of a cam or disc
with a cam face, which while revolving on its axis so as to give to the guide bar
the requisite traverse due to its cam face, has at the same time a rocking motion
imparted to it which continuously alters the plane in which the cam face lies and
therefore continuously alters the points of reversal in the traversing of the yarn
guides. In carrying our invention into effect we mount the said cam or disc upon
an axle or sleeve by means of a flexible joint in such a manner that it shall freely
rock or roll thereon in all directions. For example we form the axle or sleeve with
a spherically shaped bearing and form a similarly shaped recess or bearing in the
cam or disc thus forming a ball and socket joint. A driving pin sor key.having
sufficient free play to provide for the rocking or rolling motion is employed to give
a driving connection between the ball and socket or any other suitable driving con-
nection may be made so long as the axle or sleeve revolves or drives the cam without
interfering in any way with its rocking or rolling motions. We also provide a movable
abutment lying in contact with the smooth side of the cam or disc, the said abutment
consisting preferably of a revolving excentric or revolving excentrics which is or
are driven from the axle or sleeve carrying the cam by means of a worm and worm
wheel. As the excentric or excentrics revolve, the cam or disc-is tilted or rolled
upon the ball and socket joint, thus continuously altering the inclination-of the
plane in which the cam face works so that the points of reversal of the yarn
between the drawing rollers are altered continuously. Instead of an excentric.or
excentrics to constitute the shifting abutment as described, we might utilise any
.other means to constitute the said movable abutment. The usual or any other
suitable connections may be employed to transmit the movements of the cam or
disc to the guide bar or rail. Under another mode of útilising the ball and socket
or flexible joint for the purposes of our invention, the abutment consists of a flat
disc or washer bolted to the end of the carrying spindle and bearing against.a cam
face on a toothed wheel which is carried on a short sleeve projecting from another

page_text: toothed wheel of nearly similar diameter which has a ball and socket or flexible
bearing on the spindle. The second wheel has a cam face which imparts the
proper traverse through the usual means to the guide bar and in addition the
second wheel is rolled or rocked on the ball and socket or flexible joint by
the change of position of the first wheel and its cam face relatively to the fixed
abutment disc or washer. This change takes place during the rotation of the two
wheels which lie closely together and are both driven from the same worm or pinion
because of the differential number of teeth in the peripheries of the two wheels
so that one of the wheels overtakes the other thus changing the position of the
cam face on the first wheel relatively to the fixed abutment against which it works.
Thus the two wheels rock or roll on the ball and socket or flexible bearing and
correspondingly increase or diminish the traverse of the guide bars thus con-
tinuously varying the points at which the reversal of the yarn takes place between
the drawing rollers.
To render our invention thoroughly understood we will now proceed to describe
the same more particularly and with reference to the accompanying three sheets of
illustrative drawings
socket bearing through which the requisite rolling or rocking motion is given to
the cam.
Fig. 5 Sheet 2 is a diagram of the path described by the yarn in passing between
the drawing rollers under the guidance of the said traverse motion.
ON SHEET 3.
Fig. 6 is a side elevation of a traverse motion slightly modified in regard to the
means for imparting the requisite rock or roll to the cam but having the ball and
socket or flexible bearing which constitutes the gist of our invention.
Fig. 7 is a diagram similar to Fig. 3 on Sheet 1.
Fig. 8 is a vertical section of Fig. 6.
Fig. 9 on Sheet 2 is a diagram of the traverse of the yarn when guided by the
motion shown in Fig. 6.
Referring in the first place to Sheets 1 and 2, the parts comprising the traverse
motion are mounted upon a bracket a which is secured to the framing of the
The
machine. A bolt passes through the bracket a and carries a sleeve c.
nut at the top of the bolt clamps a small bracket at the top of the sleeve c.
The sleeve e forms a bearing upon and around which loosely revolve the worm e
and cam wheelf. The cam wheel is provided at its periphery with teeth which
gear with a revolving worm not shown in the drawings and usually fixed to the lower
roller spindle. The cam wheel might however be driven by any suitable means.
The wheel is machined on the upper face and on the lower side has a cam face f¹
against which bears the free end g of a bell crank lever g g pivotted at % to an
extension from the bracket a. The other arm g' of the bell crank lever is con-
nected by a link to the sliding guide bar which traverses the yarn to and fro
as it passes between the drawing rollers. A spring or weight or other means is
employed to keep the end of the army up against the cam face in the direction
of the arrow (Fig. 4). The bracket d has downwardly projecting lugs which
serve as bearings to confine the journals of the excentrics j j. The connecting

page_text: sleeve or spindle of the excentrics j.jcarries a tooth wheel' which gears with the
worm e which has already been referred to as revolving loosely on the sleeve c
When the cam wheel is rotated it also rotates the worm e'because as will be
seen on reference to Fig. 4 a pin projecting from the rounded foot of the worm-e
enters a clearing hole in the cupped portion of the cam wheel so that the
wheel ƒ in revolving also rotates the worm. The consequence of this is that 'By
means of the worm rotatory motion is also imparted to the excentricsjj. It will
Be observed from an inspection of Fig. 4 that there is a cupped washer m'at the
foot of the sleeve c which receives the dished or spherical portion/2 of the wheel'
while the cupped' interior of the portion receives the round or spherical foot of
the worm e.
The cam wheel is bored so as amply to clear the sleeve c and being
thus carried between convex and concave surfaces it has a ball and socket bearing
which allows it while being rotated to rock and tilt in any direction in which it
may be inclined by the excentrics jj. The arni g of the bell crank lever presses
in the direction of the arrow Fig. 4 and holds the cam wheel up against the
excentrics jj. The excentrics thus form an abutment or stop and it will be evident
that the position of the said abutment or stop will vary as the excentrics are
rotated. If the excentries formed a fixed instead of a changing abutment then the
rocking motion imparted to the bell crank lever and the consequent traverse of
the guide bar would be always between the same limits but by the rotation of the
excentries and the consequent alteration in the plane in which the rotating cam
wheel lies the limits within which the traverse of the yarn takes place are being
constantly changed from left to right and from right to left as shown for: example
in the diagram Fig. 5 Sheet 2. In the position of the excentrics as shown in
Figs. 1 and 4 that is to say at half stroke the cam wheel is in the horizontal plane,
but it will be evident that if the excentrics were in the position shown in full lines
in Fig. 3, the cam wheel would be tilted as in full line, while if the excentrics were
in the dotted position the cam wheel would be tilted into the plane of the dotted
angle. The zig-zag of the line in Fig. 5 shows the amount of traverse due to the
cam face while the waving path taken by the zig-zag line is due to the tilting
to and fro on its ball and socket bearing of the cam wheel by the action. of the
excentrics.
ડી.
Figs. 6, 7, and 8 Sheet 3 illustrate a modification in the arrangement of the ball
and socket or flexible bearing and in the means for altering the limits of traverse.
In this instance the abutment is fixed and consists of a flat disc or washer n'having
sleeve or hollow spindle n' through which a bolt o passes to secure it to the bracket a.
On the sleeve we mount a carrier p liaving a rounded or spherical top upon which
is mounted a cam wheel which is formed with a cupped recess to fit on the
spherical top of the carrier and when required to rock and tilt thereon. This
constitutes the ball and socket joint or bearing. The cam wheel has a cam face g
against which the arm g of the bell crank lever presses and by which the
requisite motion is imparted to the guide bar. It will be observed that above the
toothed cam wheel q and lying face to face therewith there is another toothed
wheel the number of teeth in the said wheel being either more or less than: thic
number of teeth in the wheel 7 so that when the wheels are simultaneously rotated
by the usual driving worm the wheel will either overtake or lag behind the
wheel 9. The wheel is mounted on a projection from the wheel q and rocks with
On the upper side of the wheel there is a cam face which lies in contact
with the fat disc n. It is this cam face which gives the variation in the traverse.
The diagram of the traverse imparted by this motion is shown at Fig. 9 Sheet 2.
It will be seen that instead of being moved slowly from side to side as the
traversing proceeds as in Fig. 5 the amount of traverse gradually increases and
diminisliés.
il.
P
""
This variation in the stroke of traverse is effected by the shifting of the wheelr
relatively to the cam wheel and to the' fixed abutment disc. In short the wheel r
may be looked upon as a wedge gradually thrust in between the highest part of the
cam face y' and the dise» so as to increase the throw of the cam face and

page_text: gradually withdrawn so as to decrease the throw. For example as shown in the
drawings the wedge cam face is so to speak withdrawn and consequently the cam
face makes its minimum traverse, represented for example in Fig. 7. by the rock
of the full line whereas if the highest part of the cam face were shifted round
opposite to the highest part of the cam face then the cam face q would execute
its maximum traverse represented by the rock of the dotted line y Fig. 7. During
this expansion and contraction of the limits of traverse the cam wheel is tilted or
inclined more or less on its ball and socket bearing according to the angle or
inclination into which it is thrown by the operation of the upper wheel.
It might
be that means other than those described that is to say, means other than the
hereinbefore described excentrics or the so called wedge cam r might be employed
to tilt or alter the inclination of the cam carried on the ball and socket bearing.
But we wish it to be understood that the said ball and socket or flexible bearing is
an essential and novel part of our invention capable of being used either in con-
junction with the means we have described or in conjunction with other means for
effecting the tilting or changing of the traversing cam face.
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 :-
-:
1) In a traverse motion mounting the cam or cam wheel which imparts the
traverse on or in a ball and socket bearing so as to admit of the said traverse cam
or cam wheel being tilted or inclined during revolution for the purposes and sub-
stantially as hereinbefore described and shown.
2) The improved traverse motion consisting of a traverse cam wheel mounted on
or in a ball and socket bearing so as to be capable of rocking or tilting in any
direction during revolution in combination with the excentrics driven from a worm
on the axis of the cam wheel the said excentrics acting as moving abutments and
continuously changing the angle or inclination of the traversing.cam during revolution
so as to effect the required variation in traverse substantially as described and as
illustrated in Figs. 1 to 5 of the drawings.
3) The improved traverse motion consisting of a traverse cam wheel mounted on
or in a ball and socket bearing and carrying a second cam wheel interposed between
a nxed disc or washer abutment and the said traverse cam wheel with means for
shifting the two cam wheels relatively to each other and so increasing or diminishing
the throw of the traverse cam for the purpose and substantially as described and as
illustrated in Figs. 6 to 9 of the drawings.
Dated this 30th day of July 1891.
DUTTON & FULTON,
1, St. James' Square, Manchester, Agents.