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Патент USA US3074236

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Jan. 22, 1963
3,074,226
R. G. HILBERT
FALSE TWIST SPINDLE ASSEMBLY
Filed April 5, 1961
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INVENTOR.
RICHARD G. HILBERT
ATTORNEY
Jan. 22, 1963
R. s. HILBERT
3,074,226
FALSE TWIST SPINDLE ASSEMBLY
Filed April 5, 1961
2 Sheets-Sheet 2
77 84 78 I04
FIG. 8
INVENTOR.
RICHARD G. HILBERT
ATTORNEY
United grates fTatent‘:
W6
1
3,@74,2Zb
Patented Jan. 22, 1963
2
FIG. 2 is an enlarged elevational view of a ‘false twist
3,074,226
FALSE TWIST SE‘ENDLE ASSENBLY
Richard G. Hilbert, Smith?eld, RE, assignor to Leesona
(importation, Cranston, RL, a corporation of Massa
c usetts
Filed Apr. 5, 19§1,S91'.N0. 100,875
9 Claims. (Cl. 57-7145)
The present invention relates to a false twist spindle
assembly and more particularly relates to an improved
mounting means for such an assembly.
It is usual for a false twist spindle to be comprised
of a rotatable blade suitably journaled for rotation and
adapt-ed to receive a running strand of yarn. Commonly,
the blade is so mounted that it can engage frictionally
with one side of a movable endless belt so that, as the
belt is driven, the spindle will cooperatively rotate there
spindle of FIGURE 1;
FIG. 3 is a view taken generally along lines III---III
of FIG. 4;
‘FIG. 4 is a view along lines IV—IV of ‘FIG. 2 and
illustrating the spindle disengaged from one side of its
driving belt;
FIG. 5 is a view similar to FIG. 4, but illustrating the
spindle engaged against the driving belt;
FIG. 6 is a view similar to FIG. 4 but illustrating the
spindle in its disengaged position at the opposite side of
the driving belt.
FIG. 7 is a view similar to FIG. 6 but illustrating the
spindle engaged with the driving belt; and
FIG. 8 is a bottom plan view of the spindle mounting
means of the present invention.
Referring now to the drawing wherein a preferred
with to twist the yarn strand.
embodiment of the apparatus of the present invention is
It will be quite apparent that with the spindle blade
disclosed. The apparatus preferably includes a plurality
set against a given surface of the belt the direction in 20 of substantially identical units mounted side by side on
which the spindle is rotated will be determined by the
an elongated frame, each unit including a false twist
direction in which the belt is driven. It follows that
spindle adapted to be driven by a single belt and means
the rotational direction of the spindle itself will be deter
for mounting those spindles to selectively contact said
minative of the direction in which the yarn strand is
belt. Inasmuch as the gang mounting of false twist spin
25 ’dles on textile machines is well known in the art, and the
twisted.
Prior to the present invention false twist spindles were
units described herein are substantially identical, only
mounted in more or less permanent positions to be driven
one unit of the apparatus will be explained in detail to
either by one side of an endless belt or the other. The
gether with such other details as are necessary to a com
only practical means heretofore known for changing
plete understanding of the present invention.
the direction of spindle rotation to thereby change the 30 The present invention is illustrated in association with
direction in which the yarn is twisted was to reverse the
a machine known in the textile art as an “uptwister” such
direction of the driving belt. It will be obvious that this
as is ordinarily employed in twisting yarns.
manner of altering the direction of the rotation of the
spindle, and thus the direction of twist in the yarn, im
posed severe limitations on the utilization of a particular
machine. This will be made more signi?cant when it
is borne in mind that false twist spindles are normally
Referring to FIG. 1, a vertical frame member 10 is
positioned ?rmly on the floor and supports one end of
a horizontal right angular member 12. It will be under
stood that a support similar to 12 is provided at the other
end of the machine. Horizontal beam 14 is supported
‘ganged in relatively large groups organized along both
by member 10 above member 12 and serves to mount
sides of a textile machine to be driven by a single belt.
a plurality of feed roll assemblies, generally indicated
40
Thus, reversal of any of the spindles involved reversal
by reference numeral 16, one of said feed roll ‘assemblies
of all of the spindles of a given machine.
16 being spaced along the beam 14 at each twisting posi
It is therefore one object of the present invention to
tion. Traversing rod 18, supported for reciprocation in
provide an improved spindle mounting means for a textile
member 10, is situated substantially in horizontal align
machine which permits mounting said spindle for op
ment with member 12, but is spaced forward therefrom.
eration against a driving belt.
.A plurality of yarn guides 20 are held fast on rod 18, one
Another object of the present invention is to provide
guide 20 being spaced in alignment with each twisting
an improved spindle mounting means for a textile ma
position. The y-arn guides 24} are moved by reciprocation
chine wherein said spindle may be mounted for rotation
of traversing rod 18 which in turn is reciprocated by any
from either surface of the driving belt.
50 suitable means, not herein illustrated, to traverse a run—
Another object of the present invention is to provide
ning strand of yarn onto a rotating spool or package P.
an improved spindle mounting means for a textile ma
A fixed rod 22 positioned in front of traverse rod 18
chine which permits easy removal of the spindle there
serves to guide a running strand of yarn into suitable en
from.
gagement with yarn guide 20.
Another object of the present invention is to provide an 55
A shaft 24, journaled for rotation in member 10, pro
vides a mounting for driving rollers 26, one of such driv
improved spindle mounting means for a textile machine
ing rollers being spaced at each winding position to drive
which admits of easy and rapid engagement and disen-'
package P in a well known manner.
gagement of a spindle with its associated driving belt.
Up to this point the description has been con?ned to
Other objects of the present invention will in part
elements commonly associated with an uptwister. The
be obvious and will in part appear hereinafter.
50
The invention accordingly comprises the apparatus. foregoing elements do not form a part of the present
invention but, rather are presented herein for purposes
possessing the construction combination of elements and
of clarity and to a complete understanding of the nature
arrangement of parts which are exempli?ed in the follow
and operation of the present invention.
ing detailed disclosure and the scope of the application
A plurality of false twist spindles generally indicated
65
of which will be indicated in the claims.
by reference numeral 30 are spaced along member 12, in
For a fuller understanding of the nature and objects
contact with an endless driving belt 31 adapted to drive
of the present invention reference should be had to the
said spindle from either of its front or rear sides or sur
following detailed description taken in connection with the
faces. Each false twist spindle 30 is comprised of a
accompanying drawing wherein:
housing block 32 which is generally C-shaped affording an
tile machine incorporating the present invention;
34, whereby the blade may be engaged with and rotated
FIGURE 1 is a fragmentary elevational view of a tex 70 area of exposure for a whorl portion 33 of a spindle blade
3,074,228
3
4
by the belt 31. A false twist spindle of the type herein
which is illustrated in FIG. 3, are located on opposing
sides of aperture 75 and on the upper surface of swing
plate 36, said detent serving to mate with depressions S7
and locate spindle 30 in position on the swing-plate in a
illustrated is fully disclosed in copending application
Serial No. 742,234 for “High Speed False Twist Spindle.”
Further details of construction of the false twist spindle
.30 are not deemed necessary to a complete understanding
preselected position.
of the present invention and are not, therefore, presented
In order that the spindle may be moved conveniently
into contact with its driving belt 31 and away from con
tact therewith the following structure is provided. A
recess 89 in the upper region of mounting block 40 is
‘spanned by a rotatable arm 90. Arm 90 extends through
block 49 and recess 89 and is provided with an enlarged
herein.
'
Referring now to FIG. 2, it will be seen that the main
support portion for the false twist spindle 30 is a swing
plate 36 rotatable in a horizontal plane about a swing
post 38. In turn swing-post 38 is enclosed substantially
handle 92 for rotation thereof. A member 94, generally
by a housing or mounting block 4%. Mounting block
a rectangular con?guration, is cccentrically ?xed on arm
40 is illustrated in PEG. 1 as provided with a clearance
99 in recess 89 by a pin 96. The end of member 94
step 41a in one con?guration and a clearance step 41b
in another con?guration. It will be understood that all 15 remote from arm 9%) has formed therein a triangular pro
?le cam 97 de?ned by a pair of diverging faces 98 and 99.
of the mounting blocks 49 are idcnticalin construction
The connecting point of cam faces 98 and 99' is situated
but for the clearance steps 411a and an; which provide
utility and adapt the spindles 35 for closer mounting to
midway along the length of said member 94, said con
mounting block thereto.
A pair of bosses t8 and 50 extend from the lower por
tion of mounting block 4% and project through aligned
holes in member 12. Boss 48 provides a smooth path 30
.arm 99 so that cam 97 swings counterclockwise as shown
necting point protruding generally toward the left and
'each other on the uptwister machine and afford the most
20 overhanging the edge of member 94 slightly as shown in
economical use of the space provided.
FIG. 3.
As is best shown in FIGS. 2 and 3,. mounting block 46
A circumferential lip or ledge 1% extending into recess
is plumbed on member .12 by a plurality of leveling screws
89 from mounting block 40 acts as a stop to limit the
42 which pass through tapped holes in mounting block
pivotal movement of member 94 and its cam faces 98
40 and bear on the surface of member '12. A bolt 46
is passed through a drilled hole in member 12 and 25 and 99. Pivotal movement of member 94 is limited to
an arc of about 90 degrees and member 94 is oriented on
threadedly engaged with mounting block 40 to secure the
of entry for a running strand of yarn to spindle 30. As
‘will be seen in FIG. 3 boss 50 receives a depending stem
52 of swing-post 38. Stem 52 is drilled and tapped to
receive a bolt 54 which draws the swing-post 38 into
in FIG. 3 from a position where it is lying entirely within
recess 89 to a position where it is extended out of said
recess and toward spindle 39. When so situated outside
of recess 39 cam 97 is in its operative position with the
greater portion of said cam 97 positioned “beyond center,”
or beyond a line lying in the vertical axis of arm 90‘ as
illustrated in FIG. 3.
’
A pair of tapped holes 103 and 164 pass through the
mounting block 40. Swing-post 33 comprises, in addi 35
surface of swing-plate 36, these holes being adapted to
tion to stem 52. previously referred to, a hub 56 located
receive a screw which serves as a cam follower 106 which
generally intermediate its terminal ends. An upstanding
is threaded through one or the other of said holes to
shaft-like portion .53 extends upwardly from hub 56 and
depend in the path of cam 97. Thus, as cam 97 is actu
‘terminates in a section 69 provided with opposing ?ats
40 ated it will be appreciated that contact of either face there
projecting from the top of mounting block 46.
of with follower 106 will cause swing-plate 36 to pivot
A sleeve 62 depends over portion 58 and is supported
about its swing-post 38. Obviously, the direction in
on nylon bushings 64 and 66. Sleeve 62 includes a hub
which plate as pivots will depend on which cam surface,
‘68 intergal therewith, the upper surface of hub 68 being
98 or 99, engages follower 106.
reduced to mount swing-plate 36 fast thereon. Hub 68
The foregoing apparatus operates in the following
is rotatable on swing-post 38 to permit swing-plate 36 to 45
vmanner. For spindle 30 to be operated from the front
be rotated horizontally about swing-post 38. The section
or outside surface of belt 31 it is necessary that it be
of sleeve 62 depending below hub 68 is surrounded by a
positioned on swing-plate 36 with the open side of hous
wear resistant tubular element 70 which, in turn, is en
ing block 32 toward the belt ‘so that whorl 33 of spindle
circled by a torsion spring 72. Tubular element 7ft acts
to prevent fretting of spring 72 and sleeve 58 which may 50 blade 34 may be urged ?ush against the outside surface
of said belt. Housing block ‘32 is rotated so that spindle
otherwise occur between these parts during operation of
blade 34 is facing belt 31 and detent ‘86 is engaged with
the apparatus. One end of spring 70 is securely con
nected in hub 56 and the opposing end of said spring is
held in engagement with hub 68. A split retaining ring
the appropriate depression 87 in the base of housing
As previously stated, swing-plate 36 affords amounting
31. This is accomplished by pre-tensioning spring 72
block 32. ‘With the spindle 30 so positioned swing
74 is engaged with swing-post 38 to- secure sleeve 62 55 . plate 36 must be urged in a clockwise direction as viewed
.in FIGS. 4 and 5 in order to contact whorl 33 with belt
' thereto.
in the following manner. With bolt 54 loosened swing
for false twist spindle 39. To this end, ‘swing-plate 36 is
post 38 is rotated in a clockwise direction, as viewed in
‘provided with an'aperture '75 at its free end.’ The lower
or undersurface of swing-plate 36 has a dished retaining 60 FIGS. 4 and 5. Flatted section 66 affords convenient
means for gripping the post for such rotation. When
spring 76 which surrounds the lower rim of the aperture
spring 72 is so positioned bolt 54 is drawn tightly against
(see FIG. 8), two opposing sides in the extension of the
mounting block 40 thereby retaining the spring under
dish being flatted or parallel as at 77 and being slightly in
its pro-tension. It will be understood with the apparatus
the path of the aperture. The retaining spring 76 is
65
arranged
in the foregoing manner, swing-plate 36 and
securelyheld'to swing-plate 36 by a pair of pins 78. It
spindle 30 will be urged rearwardly toward belt 31. To
will be seen from FIGS. 2 and 8 that false twist spindle
permit the selective movement of the spindle toward
.30 has an annular groove 82 adjacent the lower end of
and away from the belt follower v166 is located in the
housing 32 which forms a ?ange 80 on its lowest ex
front of forward threaded hole 104 whereby it will be
tremity. Flange 80 is ?atted on opposing sides asat 84
whereby said ?ange may be passed through the aperture 70 contacted by face 99 (see FIGS. 4 and 5) of cam 94
when the cam is rotated counterclockwise to move the
on swing-plate 36 with ?ats 84 thereof in registration with
spindle away from the belt. Conversely, clockwise r0
?ats 77. Slight rotation of spindle 30 acts to slide ?ange
tation of the cam permits spring 72 to swing the spindle
80 into contact with retaining spring 76 and secure the
against the belt.
spindle to swing-plate 36. A pair of detents ‘86, one of 75 Alternatively, if it is desired to drive the spindle 30
3,074,226
5
6
from the opposite face of belt 30, spindle 30 is placed
in its aperture 75 with swing-plate 36 swung
opposite of the belt. Thereafter spindle 30 is
so that blade 34 is facing the Opposing driving
or side of said belt, see FIGS. 6 and 7. With
surface, and means operable to control engagement of
said spindle with either side of said driving belt.
to the
rotated
surface
2. The combination as set forth in claim 1 wherein
said means for controlling engagement of said spindle
bolt 54
with said belt is a cam.
loose from mounting block 40, spring 72 is pre-tensioned
3. The combination as set forth in claim 2 wherein
by rotating swing-post 38 in a counterclockwise direc
tion after which bolt 54 is drawn ?rmly against mount
ing blade 40 to maintain the pre-tension of the spring.
said means for urging said spindle into driving engage
ment with said front or rear surface is a resilient means.
4. The combination as set forth in claim 3 wherein
Follower 106 is thereafter threaded through the rear 10 said resilient means is a spring.
hole 103 of swing~plate 36 to position it for contact
5. In a twisting machine having a spindle driving belt
with face 98 of cam 94. Again, counterclockwise ro
having front and rear driving surfaces and means for
tation of cam 97 will move swing-plate 36 rearwardiy
driving said belt the combination with said belt of a
to disengage the spindle from the belt and clockwise ro
false twist spindle assembly comprising a mountlng
tation thereof will permit spring 72 to move the spindle 15 member adapted to be ?xed on said machine adjacent
against the belt.
said belt, a pivotal plate carried by said member, a single
spindle disposed on said plate, means for selectively
urging said plate in a direction to engage said spindle
in operation of the unit, lever arm 90 is rotated clock
wise as viewed in FIG. 2 to pivot spindle 30 away from
belt 31. A strand of yarn Y is drawn from a supply
with said front or rear surface, and means operable to
source, not shown, and threaded through spindle blade 20 control, engagement of said spindle with either side of
said driving belt.
'34- of blade 30, whereafter it is wrapped around feed
roll assembly 15 several times. Next, the yarn is
6. The combination as set ‘forth in claim 5 wherein
threaded through traverse guide 20' and attached to
said means for controlling engagement of said spindle
package P. Driving roller 26 acts to impart rotation
with either side of said belt is a cam.
to the package for winding the yarn.
7. The combination as set forth in claim 6 including
25
When the strand is properly threaded and with driv
ing belt 31 in operation, lever arm 90 is rotated clock
wise to ‘allow follower 106 to ride down cam 97 to
permit the spindle to contact the belt.
Since certain changes may be made in the above ap
paratus Without departing from the scope of the inven
a cam follower associated with said plate and engage
able with said cam.
8. The combination as set forth in said claim 5 where
in said means for urging said plate in a direction to en
30 gage the spindle with said front or rear surface is a
resilient means.
tion herein involved, it is intended that all matter con
tained in the above description or shown in the accom
9. The combination as set forth in claim 8 wherein
said resilient means is a spring.
panying drawing shall be interpreted as illustrative and
not in the limiting sense.
35
What is claimed is:
1. In ‘a twisting machine having a spindle driving
belt having front and rear driving surfaces and means
for driving said belt, the combination with said belt of
a false twist spindle assembly comprising a mounting 40
member adapted to be ?xed on said machine adjacent
said belt, a single false twist spindle pivotally positioned
on said member, means for selectively urging said
spindle into driving engagement with said front or rear
References Cited in the ?le of this patent
UNITED STATES PATENTS
2,837,889
2,883,824
2,914,905
Comer ____________ __ June 10, 1958
Andrews et a1. ______ __ Apr. 28, 1959
Andrews et a1. ______ __ Dec. 1, 1959
1,217,494
809,606
809,946
France ______________ __ Dec. 7, 1959
Great Britain ________ __ Feb. 25, 1959
Great Britain ________ __ Mar. 4,, 1959
FOREIGN PATENTS
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