Improvements in Spinning, Twisting, Doubling, and other like Machines.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in Spinning, Twisting, Doubling, and other like
Machines.
I, PHINEAS PEARSON CRAVEN, of 16, Devonshire Street, Ardwick, Manchester,
in the County of Lancaster, Gentleman, do hereby declare the nature of this
invention to be as follows:-
This invention relates more especially to spinning, twisting, doubling and other
like machines of the kind for which Letters Patent were granted to me dated
the 17th November 1891 No. 19,969 the 11th June 1892 No. 11035 and the Brd
March 1893 No. 6242 that is to say machines for spinning, twisting, doubling
and so forth on the bare spindle.
The object of one part of the present invention is to provide means for the forma-
tion of the nose or point of the cop whereby certain defects heretofore present in
cops formed on the spindles of spinning, twisting, and doubling frames may be
obviated. These defects are two in number, firstly, the yarn or thread has hereto-
fore been too slackly wound on to the spindle at or near the point of the cop,
and secondly, too many coils of yarn or thread have been wound on to the spindle
at or near such point. These two defects combined have caused the cop to be so
loose and tender at the nose or point that when taken off the spindle it has been
very easily damaged, and has been difficult to " ready or prepare for use in
the weaving shuttle or otherwise.
"
In order to remedy these defects two things are necessary, firstly, the thread,
when being wound on to the spindle at the point of the cop, must be subjected
to as great a tension as is consistent with its strength especially at that part of
the thread which lies between the traveller and the spindle, secondly, there must
be as short a length of thread as possible wrapped on to the extreme end of the
point or nose of the cop when the crossing layer of thread is being wound on.
To effect these objects I employ means of the following character:
To keep the thread at the nose of the cop as tightly as its strength will allow. of,
instead of using a support for the pendant of the traveller such as shown in
Figures 11 and 12, or 13 and 14 of the Specification of the above mentioned Patent
No. 6242 of 1893 I use a support the upper part of which below the disc is of
conical shape, and the lower part is divided into a number, more or less, of fingers
with holes near their ends from which to suspend the pendant, and I fix the disc
of the support with its notch through which the thread passes on its way from
the drawing or delivering rollers to the spindle in such position that the thread
will have to pass partly or wholly round the conical portion of the support on its

page_text: way to the pendant of the traveller. By this means I exert a retarding effect on
the part of the thread which lies between the pendant of the traveller and the
drawing or delivery rollers which causes the short length of thread between the
pendant of the traveller and the spindle (which part of the thread is, as is well
known, stronger than any other part of the thread) to have more tension upon it
than could be borne by that part of the thread between the pendant of the traveller
and the drawing or delivering rollers. Another advantage of having the notch in
the disc placed in that position is that when the thread is drawn tight, when
spinning, twisting or doubling, the mere tension of the thread tends to pull round
the traveller, and that any extra tension on the yarn or thread, from whatever
cause it may be produced, acts upon the traveller and assists its rotation, by the
mere fact of there being extra strain on the thread. This action tends to equalize
the tension on the thread and to prevent breakages thereof, which is a great
advantage.
I find in practice that the support for the pendant shown in Figures 13 and 14
of the aforesaid Specification No. 6242 is too heavy for some counts of yarn,
and is awkward to construct, otherwise the effect above described could be obtained
by coiling the thread wholly or partly round the conical portion of the traveller
shown in that figure. In some cases similar effects may be produced by coiling
the thread round the pendant or hinged part of the traveller, and such part may
be provided with projections or prolongations round which the thread may be
coiled in order to increase the tension. It will be understood that the term pendant
employed in the above description includes the arrangement in which the hinged
part of the traveller projects upwards from a supporting part placed below the
cop, instead of downwards from a supporting part placed above the cop.
In the support for the pendant of the traveller shown in Figures 11 and 12 of
the above mentioned Specification No. 6242 the said support is cut up to the disc
into a number of fingers and the edges of these fingers are liable to present too
rough a surface for the yarn or thread to pass over smoothly and steadily. This
form of finger is also very liable to break off close up to the disc which is the
weakest part and has to bear the greatest strain through the centrifugal force
exerted upon it when working and also through the pull of the thread on the
pendant. By using supports constructed in accordance with my present invention
that is to say with the upper part below the disc conical, and the lower part
divided into fingers, I obtain a sufficiently strong, smooth, easily constructed,
and light traveller.
It has heretofore been the practice to build the cop in one of two ways, either
by moving the spindle up and down to form the chase of the cop, and lowering
it step by step to increase the length of the cop, the traveller being meantime
kept in the same plane of rotation, or by moving the traveller up and down to
form the chase of the cop and raising it step by step to increase the length of
the cop.
It has however, been found difficult to reverse the movement of either the spindle
rail or the traveller rail with sufficient quickness to prevent an undue amount of
thread being wound on to the nose of the cop. In order to overcome this diffi-
culty I move the spindle rail up and down to form the chase of the cop and raise
the traveller rail step by step to increase the length of the cop, and when the
spindle rail is at the bottom or, by preference, slightly before it reaches the lowest
point of its movement and consequently the thread is being wound on to or near
the point of the cop, I lower the traveller rail for a short distance, and thereby
prevent the winding on of an undue amount of thread at the extreme point of the
cop.
The spindle rail may be moved up and down by any of the arrangements
of mechanism ordinarily employed for that purpose, as for example by a number
of cams mounted on a shaft running the length of the frame and operating levers
which act directly or indirectly upon rods or pokers supporting the spindle rail.
The step by step movement of the traveller rail may also be effected by any mechan-
ism commonly used for that purpose, as for example by a lever actuating at each
5

page_text: movement of the spindle rail a pawl and ratchet wheel mounted on what is known
as a building motion lever, each movement of the pawl and ratchet wheel causing
the traveller rail to rise a step by means of suitable arrangements of chains,
shafts, drums and so forth. In order to effect the abovementioned lowering
of the traveller rail when and as the spindle rail approaches the lowest part of
each complete movement I raise the building motion lever by means of a cam,
the connection between the building motion lever and the traveller rail being such
that as the former is raised the latter falls. The effect of this is that instead of
several coils of thread being wound on to the spindle at the extreme point of the
cop, where they have nothing to support them when removed from the spindle,
they are wound on lower down on the chase where they are supported by the coils
beneath them. By these means I obtain a firm, compact, and neat cop in a
practical manner and one which if damaged can be easily "readied" or prepared
for use with much less waste of thread than heretofore.
Another improvement consists of arrangements of mechanism for making the
length of the chase of the cop shorter when beginning a new cop than after the
bottom of the cop has been fully formed, in order that the cop may attain its
full thickness more quickly than when the chase is of the full length from the
commencement. For this purpose I mount a special drum or roller on the drum
spindle of the building motion, and to this drum or roller I fix a chain which
passes under a second drum or roller mounted on the lever which operates the
spindle rail, or on another lever specially operated for the purpose of moving the
last mentioned drum or roller at the proper time. The aforesaid chain is then
led to a third drum or roller mounted on the shaft which operates the traveller
rail, and is coiled on to this drum or roller in a direction opposite to that in which
the chain which operates the traveller rail is coiled, and is secured to such drum
or roller. When commencing to spin a fresh set of cops this chain is drawn by
the movement of the lever carrying the second drum or roller so as to raise the
traveller rail (and the ring rail also if the two are connected together) by the
distance that it is required to shorten the chase of the cop. This causes the chain
connecting the building motion lever to the shaft which ordinarily operates the
traveller rail to slacken, and to become inoperative during this part of the move-
ment. As the machine continues to work the step by step movement of the
building motion causes the aforesaid chain working the cop-bottoming motion
to unwind from the drum on the traveller rail shaft, thereby lessening the upward
movement of the traveller rail caused by the movement of the second drum or
roller, and gradually lengthening the chase of the cop. This effect may be made
as gradual as may be required by suitably proportioning the diameter of the drum
mounted on the building motion spindle to that mounted on the traveller rail
shaft, so that the chain working the cop-bottoming motion may be wound on to
the drum on the building motion lever at any required rate slower than it is
unwound from the drum on the traveller rail shaft.
The step by step movement of the building motion raises the traveller and ring
rails uniformly from start to finish of the cop. When sufficient chain has been
unwound from the drum on the traveller rail shaft in excess of what has been
wound on to the drum on the spindle of the building motion, if any, to allow the
lever carrying the second drum or roller to operate without causing the traveller
rail shaft to move, the effect on the traveller and ring rails ceases, and the chase
has then attained its normal length, but the cop bottom will have attained its
full diameter in less time than if the chase had been allowed to assume its full
length immediately.
Another improvement relates to the pendant or hinged part of the traveller.
As heretofore constructed this has been connected to the support by a single stem,
which in order to work practically has had to be of sufficient strength to resist
the tendency of the thread, when spinning, to bend or twist the pendant round
the cop. To obviate this I make the pendant with two stems each of which is
connected with the supporting part. The pendant may be made of a piece of

page_text: wire doubled upon itself and having the doubled portion coiled in the shape of
a spiral or helix to form the eye for the thread to pass through. The two stems
of the pendant extend from this spiral or helical part to the holes or eyes of the
support, and are there formed into hooks or other parts adapted to be inserted
into the said holes or eyes so as to hinge the pendant to the support.
A further improvement relates to the disc of the traveller which revolves in
or between the supporting plates on the traveller rail. As heretofore made, this
disc has consisted simply of a flat piece of metal of the requisite shape. Such
a flat piece of metal is liable to buckle or bend when exposed to excessive strain,
or by reason of inequalities in the metal. In order to make the plate as rigid
as possible I make it with one or more corrugations round the edges or in other
suitable positions, where such corrugations will have a stiffening effect upon the
plate.
Another part of my present invention relates to the lifting and lowering of the
ring-rails which have heretofore been lifted and lowered at or along both sides
of the frame or machine at the same time by means of cams, shafts, rollers,
chains, bell-crank levers, balance weights and other devices well known and under-
stood in connection with machinery of this kind; and this part of my improvements
consists in so connecting the ring-rails with the cam or cams by means of shafts,
rollers and chains or bell-crank levers and chains, or other devices that when
one ring-rail is lifted the other is lowered and vice versa. By this means the
weight of one ring rail may be made to balance the other, and thereby the usual
balance weights may be dispensed with, and the friction due to them eliminated.
The consequences of this are that the ring-rails can be worked quicker than hereto-
fore, the length of yarn wrapped on to the cop at each lift of the ring-rail
shortened, and such length of yarn placed more across the chase of the cop than
heretofore so that the latter is made firmer and less liable, to be damaged by
handling, or in cases where it has been damaged is more easily "readied," besides
which cops so made weave better in the loom, and with less waste.
Another part of my present improvements relates to a device by means of which
the two ring-rails are lifted to the same height above the tops of the spindles,
to enable the full cops to be doffed, that is to say, removed from the spindle
when the frame or machine is stopped for that purpose. According to the
arrangements at present in use, when the frame or machine is stopped one ring-
rail may be at the top of its lift and the other at the bottom, or they may be in
various intermediate positions, and difficulty is sometimes experienced in stopping
the frame or machine with the ring-rails in the middle of their lifts and conse-
quently level with each other, and generally considerable care has to be exercised
in order to stop them in that position. To avoid this difficulty and remove the
necessity for the exercise of so much care I employ a device of the following
character-Rollers are mounted on the shafts which actuate the pokers for lifting
and lowering the ring-rails, and to these rollers are fixed the ends of chains the
other ends of which are connected to another roller mounted on the boss of a
wheel or otherwise so arranged that they can be rotated to the required extent.
Two of the aforesaid chains, one from each side of the frame or machine, are
connected to the last mentioned roller, and are so adjusted as to length that when
the roller, to which they are both fixed, is turned round, whichever of the two
ring-rails is the lower will be raised to the same level as the other, and then both
are lifted together to the required height for doffing the cops.
Dated this 13th day of January 1898.

page_text: Improvements in Spinning, Twisting, Doubling, and other like
Machines.
I, PHINEHAS PEARSON CRAVEN, of 16, Devonshire Street, Ardwick, Manchester,
in the County of Lancaster, Gentleman, 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 more especially to spinning, twisting, doubling and other
like machines of the kind for which British Letters Patent were granted to me
dated the 17th November 1891 No. 19969, the 11th June 1892 No. 11035, and the
23rd March 1893 No. 6242, that is to say machines for spinning, twisting,
doubling and so forth on the bare spindle.
In the accompanying drawings, Figure 1 is an elevation, and Figure 2 a plan
of a spinning traveller constructed in accordance with one part of my present
invention, Figure 3 an elevation of a similar traveller somewhat modified, and
Figure 4 is a section showing a peculiar construction of the disc of such a traveller.
Figure 5 is a diagrammatic elevation of an apparatus for balancing the ring-rails
and for moving one ring-rail up while the other moves down, alternately; and
Figure 6 is a diagrammatic elevation of an apparatus for raising both ring-rails
to the same level to enable the cops to be doffed from the spindles.
The object of one part of the present invention is to provide means for the
formation of the nose or point of the cop, whereby a certain defect heretofore
present in cops formed on the spindles of spinning, twisting, doubling and the
like frames may be obviated. This defect is that the yarn or thread has heretofore
been too slackly wound on to the spindle at or near the point of the cop; this
causes the cop to be so loose and tender at the nose or point that when taken off
the spindle it it very easily damaged, and has been difficult to "ready" or prepare
for use in the weaving shuttles or otherwise.
In order to remedy this defect the thread, when being wound on to the spindle
at the point of the cop, must be subjected to as great a tension as is consistent
with its strength especially at that part of the thread which lies between the
traveller and the spindle. For this purpose instead of using a support for the
pendant of the traveller such as shown in Figures 11 and 12, or 13, 14 and 15
of the Specification of the abovementioned Patent No. 6242 of 1893, I use a support
as shown in Figures 1 and 2 of the drawings accompanying this specification,
the upper part A of which below the disc B is of conical shape, and the lower
part only is divided into a number, more or less, of fingers A¹ with holes A³
near their ends from which to suspend the pendant C; and I fix the disc B of the
support with its notch B¹, through which the thread D passes on its way from
the drawing or delivery rollers to the spindle, in such position relatively to the
pendant that the thread D will have to pass partly or wholly round the conical
portion A of the support on its way from the notch B¹ in the disc B to the
pendant C of the traveller. By this means I exert a retarding effect on the part
of the thread which lies between the pendant C of the traveller and the drawing
or delivery rollers, which causes the short length of thread between the pendant C
of the traveller and the spindle (which part of the thread is, as is well known,
stronger than any other part of the thread) to have more tension upon it than
could be borne by that part of the thread between the pendant of the traveller
and the drawing or delivering rollers.
Another advantage of having the notch B' in the disc B placed in the position
described is that when the thread is drawn tight, when spinning, twisting or

page_text: doubling, the mere tension of the thread tends to pull round the traveller, and that
any extra tension on the yarn or thread, from whatever cause it may be produced,
acts upon the traveller and assists the rotation by the mere fact of there being
an extra strain on the thread. This action tends to equalize the tension of the
thread, and to prevent breakages thereof, which is a great advantage:.
I find in practice that the support for the pendant shown in Figures 13 and 14
of the aforesaid Specification of Patent No. 6242 of 1893 is too heavy for some
counts of yarn, and is awkward to construct, otherwise the effect above described
could be obtained by coiling the thread wholly or partly round the conical 'portion
of the traveller shown in those figures, and as illustrated at 1) in Figure 3. of
the drawings accompanying this specification.
It will be understood that the term pendant employed in the above description
includes the arrangement in which the hinged part of the traveller projects
upwards from a supporting part placed below the cop, instead of downwards.
from a supporting part placed above the cop.
In the support for the pendant of the traveller shown in Figures 11 and 12
of the abovementioned Specification No. 6242 of 1893 the said support is cut up
to the disc into a number of fingers, and the edges' of these fingers are liable to
present too rough a surface for the yarn or thread to pass over smoothly and
steadily, unless each edge is carefully smoothed or rounded by hand which is much
too expensive a process in practice. That form of finger is also very liable to
break off close up to the disc, which is the weakest part and has to bear the greatest
strain through the centrifugal force exerted upon it when working, and also
through the pull of the thread on the pendant.
By using supports constructed in accordance with my present invention,
that is to say with the upper part A below the disc B conical, and the lower part
only divided into fingers, and by passing the thread over one of such fingers and
through a well smoothed notch A³ in the side thereof I obtain a sufficiently smooth,
easily constructed, and light traveller which is much stronger than when the
fingers are cut up to the disc.
Another improvement relates to the pendant or hinged part of the traveller.
As heretofore constructed the pendant or hinged part of the traveller has been
connected to the support by a single stem, which, in order to work practically,
has had to be of sufficient strength to resist the tendency of the thread, when
spinning, twisting or doubling to bend or twist the pendant round the cop. To
obviate this I make the pendant with two stems or legs C C, each of which is
connected with one of the supporting parts or fingers A', as shown in Figures 1
and 2. The pendant may be made of one piece of wire doubled upon itself,
and having the doubled portion coiled in the shape of a spiral or helix C to form
the eye for the thread D to pass through. The two stems or legs of the pendant
extend from this spiral or helical part to the holes or eyes A2 of the support, and
are there formed into hooks or other parts adapted to be inserted into the said
holes or eyes so as to hinge the pendant flexibly to the support.
It will be readily understood that this form of pendant has much greater lateral
stiffness than one with a single stem, and that consequently it is less- liable to be
bent or twisted round the cop, and can be made of lighter wire than a pendant
having a single stem.
This form of pendant may also be employed with advantage in travellers the
pendant supports of which are conical, and are not divided into fingers, as shown
at A in Figure 3. And the disc B may be fixed in this case, as in the traveller
Figures 1 and 2 so that its notch stands in such relation to the pendant C that
the thread I must pass more or less round the conical surface A on its way from
the notch in the disc to the pendant, as shown partly by the full lines and partly
by the dotted line in Figure 3.
A further improvement relates to the disc of the traveller, which disc revolves
in or between the supporting plates on the traveller-rail of the spinning, twisting,
doubling or other like machine. As heretofore made this disc has consisted simply

page_text: of a flat piece of metal of the requisite shape. Such a flat piece of metal is liable
to buckle or bend when exposed to the strain occasioned by working, or by reason
of inequalities in the metal. In order to make this plate as rigid as possible,
I make it with one or more concentric or other corrugations placed in positions
where they will have a stiffening effect upon the plate. Such corrugations are
illustrated in Figure 4 where the disc B is shown in section.
Another part of my present invention relates to the lifting and lowering of
the ring-rails, which have heretofore been lifted and lowered at or along both
sides of the frame or machine at the same time by means of cams, shafts, rollers,
chains, bell-crank levers, balance weights and other devices well known and under-
stood in connection with machinery of this kind; and this part of my improve-
ments consists in so connecting the ring-rails together and with the actuating
devices, that when one ring rail is lifted the other is lowered and vice versa. By
this means the weight of one ring-rail may be made to balance that of the other
and thereby the usual balance weights may be dispensed with, and the friction due
to them eliminated. The consequences of this are that the ring-rails may be
worked quicker than heretofore, the length of yarn wrapped on to the cop at each
lift of the ring-rail shortened, and such length of yarn placed more across the
chase of the cop than heretofore, so that the latter is made firmer and less liable
to be damaged by handling, or, in cases where it has been damaged, is more
easily "readied"; besides which cops so made weave better in the loom, and with
less waste.
One method of carrying this part of my invention into effect is illustrated in
Figure 5 of the drawings in which E represents part of the end frame of a
spinning, or other like machine, F F the spindle rails, G G¹ the spindles, H H¹
the ring-rails, J J the pokers for raising and lowering the ring rails, K K¹ the
boots attached to the lower ends of the pokers JJ, L L the lifting chains attached
as usual at one end to the boots K K' and at the other end to the lifting
drums M M mounted on the shafts N N¹, all the parts so far described being
constructed and arranged in the ordinary well known manner and forming in
themselves no part of my invention, which is, however, illustrated by the parts
of the drawing I am now about to describe. P is a plate pivotted on a stud Q
fixed to the frame E. On the plate P are fixed studs R, S and T. On the stud Q,
is mounted, so as to turn freely thereon, a worm-wheel Q1 which gears with the
worm U fixed on the worm-shaft U¹ turning in bearings U2 on the plate P. Q2 is
a spur-wheel fixed to and turning with the worm-wheel Q R is a spur-wheel
turning on the stud R and gearing with the spur-wheel Q2. T is a spur-wheel
turning on the stud T and rearing with the spur-wheel R¹. T is a roller or
drum fixed to and turning with the spur-wheel T¹; to it is fixed one end of the
chain or other equivalent device V₁ the other end of which is fixed to the ring-
rail lifting drum M1 at that side of the machine. S¹ is a spur-wheel turning on
the stud S and gearing with the spur-wheel T, the wheels S¹ and T¹ having the
same number of teeth. S2 is a roller or drum fixed to and turning with the spur-
wheel S¹. The roller or drum S is of the same diameter as the roller or drum T2;
to it is attached one end of a chain or other equivalent device V the other end
of which is fixed to the ring-rail lifting drum M at that side of the machine.
The stud S (or another stud suitably placed and secured on the plate P) is pro-
vided with a friction roller and takes into the groove of a box cam, not shown
in the drawing, so adapted and rotated that it imparts to the plate P by means
of the said stud S, or other stud, as the case may be, an oscillatory motion on
the stud Q for each up and down motion of the ring-rails.
It will now be understood that when the plate P with the gearing and drums
mounted on it is oscillated to the left in Figure 5 by the aforesaid cam the
chain turns the drum M and draws up the right hand ring-rail H¹ by means
of the chain L': the chain V is thereby slackened, and the weight of the left
hand ring-rail H causes the latter to descend turning the drum M by means of
the chain L. When the plate P is oscillated by the cam to the right in Figure 5,

page_text: the reverse action takes place, that is to say the right-hand ring-rail H' is lowered
and the left hand ring-rail H is raised. It will be seen that by this arrangement
the two ring-rails balance one another and one is moved up while the other is
moved down, the upward and downward movements taking place at the same
speed instead of the downward movement being quicker than the upward move-
ment as is the case in the ordinary well known arrangements. The result of this
is that the coils of thread on the chase of the cop cross each other much more
effectually and more frequently than usual and a much stronger cop is produced.
The apparatus above described is made to serve the purpose of a building
motion to raise the ring-rails step by step as the cop increases in length, by means
of the worm gear Q', U, U in the following way:-U3 is a ratchet-wheel fixed
on the shaft of the worm U. Each time the plate P makes an oscillation
to and fro the ratchet wheel comes in contact with a suitably placed pawl, not
shown in the drawings, and is turned to the extent of one or more teeth; this
causes the worm-wheel Q', spur gearing Q, R', T and S¹, and the drums T2
and S2 to rotate, step by step gradually winding the chains V and V₁ on to the
latter, thereby raising the ring-rails H H¹ step by step as the length of the cop
increases.
Another part of my present improvements relates to a device by means of which
the two ring-rails are lifted to the same level or height at or above the tops of the
spindles to enable the full cops to be doffed, that is to say, removed from the
spindles when the frame or machine is stopped for that purpose. According to
the arrangements at present in use, when the frame or machine is stopped one
ring-rail may be at the top of its lift and the other at the bottom, or they may
be in various intermediate positions, and difficulty is sometimes experienced in
stopping the frame or machine with the ring-rails in the middle of their lifts
and consequently level with each other, and generally considerable care has to
be exercised in order to stop them in that position. To avoid this difficulty,
and to remove the necessity for the exercise of so much care, I employ a device
of the character illustrated in Figure 6, in which E represents part of the end
frame of a machine, the spindle rails, G G the spindles, H H the ring-rails,
JJ the pokers, K K¹ the boots at the lower ends of the pokers, L L' the lifting
chains for the ring-rails, M M the drums to which the lifting chains L L' are
respectively attached, and N N the ring-rail lifting shafts on which the
drums M M are respectively fixed. W is a worm-wheel adapted to rotate freely
on a stud WI fixed to the frame of the machine. W2 is a worm mounted on the
worm-shaft W3 which can be rotated in either direction by a crank handle or
otherwise when required. X is a roller or drum connected to the worm-wheel W
or otherwise adapted to rotate with the latter. Y Y¹ are chains or other equivalent
devices secured at one end to the drums M M respectively, or, if preferred, to
other drums fixed on the shafts N N³, and at the other end to the drum X in such
manner that when the latter is rotated both chains Y and Y are wound on to,
or unwound from such drum according to the direction in which the latter is
rotated. The chains Y Y¹ require to be so regulated as to length that they are
taut when supporting the two ring-rails at the same height, but can be slackened
out so as not to interfere with the proper action of the ring-rails when the
machine is working.
When the machine is working and winding on to the cops, the chains Y Y¹
hang slack, as shown by the dotted lines in the figure, the worm wheel W having
been turned in the direction of the arrow by the rotation of the shaft W3 and
worm W, by hand or otherwise, previous to commencing a set of cops. Then,
when the set of cops is finished, and the machine has been stopped the shaft W3 and
worm W2 are rotated so as to turn the worm-wheel W in the direction opposite
to that indicated by the arrow so as to wind the chains Y Y on to the drum X,
thereby first taking up the slack and raising that one of the ring-rails that
happens to be the lower to the level of the higher, after which both rails can be
raised together to any desired height by continuing the rotation of the worm-

page_text: shaft W and worm W, the chains Y and Y' causing the drums M M¹ to rotate
and wind up the lifting chains L L. When the cops have been doffed and it
is desired to commence a fresh set the worm-wheel W is turned again in the
direction of the arrow until the chains Y Y are quite slack so that the ordinary
up and down motion of the ring-rails cannot draw them taut and the ring-rails
are thereby left to the action of the building motion in the usual way until the
cops are finished, when the process of winding up the ring-rails by the drum X
is repeated.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is-
First. A traveller for a spinning, twisting, doubling or the like machine, having
the support for the pendant made conical below the disc, and with the part below
the said conical portion divided into fingers provided with means at or near their
ends for the attachment thereto of the pendant, a pendant flexibly connected to
the said fingers, and a disc fixed above the aforesaid conical part, with its notch
placed in such a position relatively to the pendant that the thread must pass
partly or wholly round the said conical portion of the support on its way from
the said notch in the disc to the pendant, substantially as described with reference
to Figures 1 and 2 of the drawings.
Second. In a traveller of the kind herein referred to for a spinning, twisting,
doubling or the like machine, a support for the pendant made conical below the
disc, and with the part below the said conical portion divided into fingers, the said
fingers being provided with means at or near their ends for the flexible attachment
thereto of the pendant, substantially as described with reference to Figures 1 and 2
of the drawings.
Third. In a traveller of the kind herein referred to for a spinning, twisting,
doubling or the like machine, the combination with a support for the pendant
made conical below the disc, and with the part below the said conical part divided
into fingers adapted to carry the pendant, of a disc having its notch so placed
relatively to the pendant that the thread must pass partly or wholly round the
said conical portion of the support on its way from the notch in the disc to the
pendant, substantially as described with reference to Figures 1 and 2 of
the drawings.
Fourth. In a traveller of the kind herein referred to for a spinning, twisting,
doubling or the like machine, a pendant having two stems or legs adapted to be
connected to the support, substantially as described with reference to Figures 1,
2 and 3 of the drawings.
Fifth. In a traveller of the kind herein referred to for a spinning, twisting,
doubling or the like machine a supporting disc made with corrugations, substan-
tially as described with reference to Figure 4 of the drawings.
Sixth. The improvement in machines for spinning, twisting doubling or the
like on to the bare spindle which consists in so connecting together the two ring-
rails of the machine that they balance one another, and in imparting motion
to the ring-rails so connected, in such manner that the one is raised as the other
is depressed alternately, substantially as described.
Seventh. Mechanism for effecting the connection together of the two ring-
rails of a spinning, twisting doubling or the like machine so that they balance
one another, and for imparting alternate up and down movements to the said
ring-rails, constructed and operating substantially as described with reference
to Figure 5 of the drawings.
Eighth. Mechanism for raising the two ring-rails of a spinning, twisting,
doubling or the like machine to the same height at or above the tops of the
spindles to enable the cops to be doffed, which consists of a roller or drum X
capable of being rotated by worm gear or other suitable means in either direction
at pleasure chains or their equivalents Y Y¹ connected to the said roller or drum

page_text: and to rollers or drums on the ring-rail lifting shafts, the said chains- or their
equivalents being so regulated as to length that they are taut when supporting
the two ring-rails at the same height, but can be slackened out so as not to
interfere with the proper action of the ring-rails when the machine is working,
substantially as described with reference to Figure 6 of the drawings.
1000
Dated this lith day of Octo
P. P. CRAVEN.
Per W. H. Beck,
Agent, 115, Cannon Street, London, E.C.