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Патент USA US3095692

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July 2, 1963
Filed May 20. 1960
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3 Sheets-Sheet 1
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July 2, 1963
Filed May 20. 1960 '
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July 2, 1963
3 Sheets-Sheet 3
Filed May 20, 1960
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United States Patent 0
Patented July 2, 1363
vention is illustrated as applied to a twister frame having
a conventional downtwister take-up with a traverse ring
11 and traveler 13 which may be suitably mounted on a
Raymond G. Tessmer, Spartanburg, S.C., assignor to
Deen'ng Milliken Research Corporation, Spartanburg,
S.C., a corporation of Delaware
Filed May 20, 1960, Ser. No. 30,655
3 Claims. (Cl. 57-34)
This invention relates to an improved method and ap
reciprocably driven ring rail (not shown). As in con
ventional practice the ring 11 and its associated traveler
13' are reciprocated longitudinally of the bobbin support
ing spindle 15 which may be suitably driven in any desired
manner, as by a belt drive (not shown). Also, as in con
ventional practice the reciprocally moved traverse ring 11
paratus for winding yarn onto yarn carriers, such 1 as 10 and associated traveler 13 are employed for the purpose
tubes, cones, etc., and more particularly to an improved
method and apparatus for forming transfer tails and yarn
packages on such yarn carriers, as well as forming waste
of twisting the yarn and winding a yarn package onto the
bobbin B, which in the instant example is a cone, suitably
supported in driven relation on the spindle 15.
a The down-twister take-up is modi?ed according to the
wraps as may be necessary or desired.
- In the art of winding strands of textile material onto 15 present invention by the mounting of an auxiliary ring 17
yarn carriers such as tubes, cones, etc., all of which will
be referred to generically as bobbins, it is often desirable
and auxiliary traveler 19 beneath the primary traverse
ring 11. The auxiliary ring 17 is preferably vertically
movable through a limited distance adjacent the lower end
to form a transfer tail on such bobbin prior to the forma
of the seated bobbin in order to provide for the formation
tion of the main yarn package on the carrier. Also, in
certain operations such as those involving heat or other 20 of both waste yarn wraps W and transfer tail wraps T.
To this end, in the illustrative example the auxiliary ring
thermal or chemical treatment applied to the yarn during
the course of passage of the yarn from the yarn supply Y 17 at each take-up position is mounted on ?xed supports
21 on the frame through the medium of one or more guide
to the take-up, it is most desirable to provide for the facile
pins 23 secured to the ring, each guide pin 23 extending
disposal of the waste yarn which is formed at the begin
ning of the winding of yarn onto each succeeding yarn 25 in ‘sliding relation through a corresponding bore in a re
spective one of the supports 21. In the illustrated ex—
carrier. Further, in many of the yarn texturizing processes
ample the guide pins 23 are secured, as by set screws 25
and ‘apparatus it is common practice to control independ
in bosses 27 formed on or secured to the auxiliary ring
ently each individual twisting or other take-up position,
17, and these bosses 27 serve in conjunction with the
and in such instances it is very desirable and often neces
sary that any tail-forming method and/or apparatus be 30 upper surface of the supports 21 to limit the lower extent
of travel of the auxiliary ring 17 and associated traveler
capable of practice facilely on ‘an individual spindle posi
‘ 19. The upper limit of travel of the auxiliary ring 17
tion basis.
may be suitably established as by a collar or collars 29
Although various tail-forming‘methods and apparatus
adjustably secured to one or more of the guide pins beneath
have been developed in the prior art, such apparatus
and methods have been comparatively cumbersome or 35 the corresponding supports as by a set screw 31. Ob
viously, other supporting arrangements might be employed
have had other limitations such as requiring auxiliary
for the auxiliary ring, as for instance the ring might be
sleeves, spools, etc., to be used with conventional bobbins,
slidable on a ?xed pin or pins disposed in a support or
and/or have been limited to heavy denier high tensile
supports therefor, or other suitable guide and supporting
strength yarns. It is a major feature of vthe present in
means might be provided .as desired. It is, however, in
vention that a method and apparatus is provided for form
many instances most desirable to permit a limited lon
ing a transfer tail, as well as a waste wrap, directly on the
bobbin onto which the‘ yarn package is subsequently ‘ gitudinal movement of the auxiliary ring in order to pro
vide for formation of separate waste and transfer tail
formed, without necessitating the use of auxiliary sleeves,
wraps on the bobbin prior to the formation of the yarn
spools, or the like or necessitating abnormally high yarn
tension'during the transfer tail formation, or causing 45 package on the bobbin.
In order to provide for ease of movement of the indi
substantial variation between the twist imparted ‘to the
vidual auxiliary ring at each individual take-up position
yarn during the formation of, the transfer tail and that
‘there is provided a manually operable lever system, includ
imparted to the yarn during formation of the yarn pack
ing a hand lever'33'pivotally mounted as indicated at 35,
age per se.
The invention is applicable to all types of yarns, includ 50 and a suitable linkage 37 connecting between the auxiliary
ring 17 and this pivotally mounted lever 33.
ing both ?ne denier and heavy denier, ‘and lends itself
As will be seen from the ?gures, it is most desirable
to practice with minimum modi?cation on a conventional
that thelower auxiliary ring be of a size different from
down-twister frame, if desired.
that of the primary traversing ring in order to accom
Still further features and attendant ‘advantages will
become apparent to those skilled in the art from a 55 modate the normal traversing movement of the primary
reading of the following detailed description of an illus—
trative physical embodiment constructed according to the
invention, and describing the method of forming waste
wraps and transfer tails according to the invention. In
the accompanying drawings:
FIGURES 1-5 are schematic perspective views of an
apparatus constructed according to the invention, the
‘respective views illustrating sequential steps in the prac
ring, particularly when the auxiliary ring is in the raised
position to form the transfer tail wrap or wraps closely ad
jacent the lower end of the bobbin package build. To
this end the external diameter of the auxiliary ring is
60 preferably smaller than the internal diameter of the travel
ing ring.
A special auxiliary traveler 19 is mounted for sliding
movement on the auxiliary ring 17, an example of such
traveler being shown in detail in FIGURES 6 and 7. The
65 traveler has a main body portion 19‘a which is generally
C-shaped in the conventional manner for hooking over the
FIGURES 1A-e5A are schematic elevation views of the
ring to lock the traveler in sliding relation thereon, ‘and
apparatus according to the invention, corresponding to
. FIGURES 1-5 respectively.
extending laterally from the upper section of the traveler
body is a ?nger 1% which serves as a temporary guide
'FIGURES 6 and 7 are perspective and front elevation
views respectively of the auxiliary ?yer employed in the 70 for the yarn during the formation of the transfer tail and
waste wraps. Normally, the traveler body 19a is of suf
arrangement of FIGURES 1-5.
Referring now to the ?gures of the drawing, the in
?cient oversize to permit the traveler to slide at an inclined
tice of the method of the invention utilizing this ap
angle, as shown for example in FIGURE 1, and in order
to properly guide the yarn between the guide ?nger and
the main body portion of the traveler the laterally extend
lowermost or quiescent position as shown in FIGURES
l and 1a. The drive (not shown) may then be con
nected to the spindle 15 to initiate winding of the waste
ing guide ?nger 19b is preferably disposed with its bottom
wrap as illustrated in FIGURES 1 and 1a. Upon the
winding of su?icient turns in the waste wrap W to insure
surface extending along a straight or slightly concave line
forming an acute angle with an adjacent surface of the
main body portion of the traveler. Thus, as seen in
FIGURE 1, the normal inclined position of the traveler
body 19a in running relation permits the canted ?nger 19b
the disposal of any initial defective yarn the operator
may then raise the ring-actuating lever 33 upwardly to
cause the ring to move toward its uppermost position.
The rate of movement of this lever relative to the rate
to assume a position approximately parallel with or slightly 10 of rotation of the spindle 15 and bobbin vB will determine
the spacing between the transfer tail wraps T as they
downwardly inclined with respect to the upper surface
are ‘formed above the waste wrap W.
of the auxiliary ring, and in the illustrated construction
In both the Waste wrap and transfer tail-forming
the ?nger 19b and main body portion of the traveler
condition of the apparatus the rotation of the spindle
together with the adjacent surface of the auxiliary ring
serve to ‘form a 3-sided open-ended enclosure for the yarn 15 and bobbin will effect orbiting motion of the auxiliary
during its engagement with the auxiliary traveler 19.
traveler 13 and primary traveler 19 on their respective
There is thus formed in effect ‘a movable open-ended en
closure from which the yarn can be released by the
exertion of a retarding force on the yarn during the lay
rings, the auxiliary traveler being somewhat ahead of
ing of yarn onto the bobbin thereby.
the primary traveler as shown in the ?gures of the draw
ings. Thus, as in the usual case, the primary traveler
20 13 will be slida-bly dragged about its ring 11, and the
auxiliary traveler v19 will likewise be dragged about its
ring 17 so long as the yarn Y is in engagement with the
auxiliary traveler '19, and in this condition the yarn will
ing release member 39 is disposed between the spindle
be wound onto the bobbin B substantially in the plane of
and the inner periphery of the auxiliary ring, this member
being mounted for vertical sliding movement in a guide 25 travel of the auxiliary traveler 19. After release from
the auxiliary traveler the yarn will be wound onto the
41 and slidably movable longitudinally of the spindle
bobbin B substantially in the plane of travel of the pri
15 as by a hand operated lever 43 loosely engaging the
mary traveler.
lower end of the release member. In order to prevent
Upon ‘the formation of the desired number of transfer
angular movement of the release member in its guide
aperture 45 toward or away from the spindle or the aux 30 tail wraps T formed during the upper end of travel of
the auxiliary ring the operator will move the lever 43‘ to
iliary ring the guide engaging portion of the release mem
move the yarn release member 39 vertically to the
ber 39 is preferably non-circular in cross-section, and the
active yarn release position as shown in FIGURES 3 and
guide aperture 45 therefor has a corresponding. com~
3a and 4 and 4a. In this position the inclined yarn
plementary non-circular cross-section. For instance, the
vertical sliding portion of the release member 39 may be 35 retarding and release portion 39a of the release member
39 disposed in the path of the yarn from the auxiliary
square in cross-section, with a corresponding square
traveler to the bobbin, and ‘as the yarn proceeds in its
vertical guide opening 45 in the guide.
In the illustrated example, the yarn release member
orbiting motion about the axis of the spindle and bobbin
it will be brought into engagement with the yarn retard
takes the form of a rod which is bent at its upper end
portion to form an inclined yarn retarding and release 40 mg and release surface formed by the upper inclined por~
tion 39a of the release member. As will be seen in FIG
surface. ‘In plan view, the bent upper end portion 39a
URES 3 and 3a and 4 and 4a the thus-engaged yarn Y
of the yarn release member 39 is preferably curved with
will be bent in its path and retarded by this engagement
a suitable curvature to ?t most facilely with ample clear
with the yarn retarding surface 39a so as to
;ance between the bobbin B and the auxiliary ring 17.
A suitable stop 47 may be provided to establish the 45 cause release 'of the yarn from the ?nger 19b of
the auxiliary traveler. This action will be effective as a
lower quiescent position of the lever and yarn release
result of the kinetic energy in the orbiting auxiliary
member, and a similar limit stop 49 may be provided for
traveler and its consequent tendency to continue its orbit
establishing the upper
of travel of the lever and
mg travel about the axis of the spindle and ‘bobbin, where
yarn release member. In the normal quiescent or lower
most position of the yarn release member 39, the yarn re 50 as the yarn, upon encountering the yarn retarding surface
of the release member 39, will be materially retarded to
tarding sur?ace portion 39a thereof is below the path of
an extent su?icient to overcome the ooef?cient of friction
travel of the yarn Y from the auxiliary traveler 19 to
between the yarn and the auxiliary traveler ?nger 1912.
the bobbin B when the auxiliary ring 17 'is in the lower
Thus, the yarn will be disengaged from the auxiliary
most or waste wrap forming position. Upon movement
of the yarn release member actuating lever 43 to raise the 55 traveler 19 by its engagement with the yarn release mem
ber v39. In this released condition the yarn will there
yarn release member 39 to its uppermost position the
upon and thereafter be guided to the bobbin by the pri
yarn retarding and release surface portion 39a will be
mary traveler 13 disposed on the primary traverse ring
brought into the path of travel of the yarn Y from the
11. It will be noted that the primary traverse ring may
auxiliary traveler 19 to the bobbin B when the auxiliary
ring 17 is in the uppermost or transfer tail-forming posi 60 be .reciprocated in its normal traverse path during the
In order to provide for selective release of the yarn
from the auxiliary traveler :a yarn engaging and retard
tion (see FIGURES 3 and 3a, 4 and 4a).
In operation,
up by the
the yarn
twist down
a yarn
supply (not shown) through a suitable guide system in
entire portion of the waste wrap and tail-forming opera
tion ‘when employing the arrangement and method ac
cording to this invention. Thus, upon release of the
yarn from the auxiliary traveler 19 the yarn will then
cluding an axially aligned thread board guide (not 65 begin its normal traverse ‘and build ‘on the bobbin at
whatever position the primary traverse ring is disposed
shown) to the primary ring 11, where it is threaded
vat that time, and the take-up ‘and package-forming oper
through the primary traveler 13. The yarn is threaded
ation will proceed in the normal and conventional manner
in engagement with the auxiliary traveler 19 beneath the
from this point on until the completion ‘of the pack-age
laterally extending ?nger 1%, without passing through
the C-sha'ped main body portion 19a as in the conven— 70 build cycle.
tional traveler thread up, and is thereupon led to the
bobbin B where it is secured to the bobbin as by map
ping about the bob-bin one or more turns. At this time,
the auxiliary ring 17 is in the lowermost or waste wrap
It will be appreciated that it is di?icult ‘for the opera
tor to establish with any certainty the number of wraps
T ‘being or having been formed for the transfer tail, and
he should therefore use his best judgment to establish the
forming position and the yarn release member 39 is in its 75 period of time between the raising of the auxiliary ring
17 and the release of the yarn Y from the iauxiliaglty
traveler 19 by the yarn release member 39. However, in
gitudinally relatively movable with respect to one an
most instances it will be satisfactory to cause the yarn
nelease member 39 to release the yarn from the auxiliary
on said spindle, a second yarn guide disposed in longi
other for forming a package of yarn on a yarn carrier
tudinally spaced apart position from said ?rst guide and
being also disposed laterally adjacent said spindle, said
traveler 19 substantially immediately upon the raising of
the auxiliary ring to its upper position.
‘It will be noticed from the ?gures of the drawings, and
particularly FIGURES 5 and 5a, that with the present
invention the waste wraps ‘W, the transfer tail wr‘aps T,
second yarn guide being angularly movable about the
axis of ‘said spindle, and a normally yarn-disengaged yarn
retard-ing element adapted to be moved into contact with
the yarn at a position adjacent said second yarn guide
for selectively disengaging yarn from said second yarn
guide during laying of yarn thereby onto a yarn carrier
and the main body P of the yarn package may be sep
arated by discrete internals, if so desired, and in many
on said spindle while not disengaging the yarn ‘from said
instances this is desirable insofar as the separation of
?rst yarn guide.
the transfer tail wraps item the waste wuaps is concerned.
2. Apparatus according to claim 1 wherein said yarn
It is, of course, understood that there will be a connect
ing length of yarn between the waste Wraps W and the 15 engaging element for selectively disengaging yarn from
said second yarn guide comprises a yarn engaging mem
transfer tail wraps T, as well as between the transfer tail
ber having a yarn-engaging cam surface inclined with
wraps T ‘and the main body P of the yarn packaged
respect to a plane perpendicular to the longitudinal axis
Upon the do?ng of the bobbin with its full package
of said spindle, said member being disengaged from said
thereon in the conventional manner, the operator may cut
the waste wrap W loose from the transfer tail wraps T 20 yarn during formation of wraps by said second yarn
guide and movable in a direction having a component
and remove the waste yarn in the waste wrap W, thus
parallel to the longitudinal axis of said spindle.
leaving :a transfer tail of good quality yarn and having
3. Apparatus according to claim 1 wherein said yarn
substantially the same twist and other qualities as‘ the
enga-ging element for selectively disengaging yarn from
yarn in the main body of the package.
While this invention has been described with reference 25 said second yarn guide is a movable yarn-retarding mem
ber selectively movable into and out ‘of the normal path
to only one illustrative embodiment constructed in ac
of yarn travel ‘from said second yarn guide to a carrier
cordance therewith it will be readily apparent to those
!on said spindle and being movable into said normal path
skilled in the ant that various modi?cations ‘and improve
ments may be made without departing from the scope and
fromla position disposed below said normal path of yarn
spirit ‘of the invention. Accordingly, it will be under
trave .
stood that the invention is not to be limited by the speci?c
illustrative embodiment disclosed herein, but only by the
scope of the appended claims.
That which is claimed is:
1. Appamatus for forming wraps of yarn on a yarn 35
carrier comprising a spindle for mounting a yarn car
rier, a ?rst yarn ‘guide disposed laterally adg‘acent said
spindle, said ?rst yarn guide and said spindle being lon
References Cited in the ?le of this patent
Keefe _______________ __ May 29, 1956
Binns _______________ __ Sept. 20, 1960
Great Britain _________ __ July 31, 1957
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