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Патент USA US2128185

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Aug. 23, 1938.
.1. H. JEWETT, JR ‘ v
Filed April 15, 1936
, ‘
do/m/ b’. c/EWL'TT, JR.
Patented Aug. 23, 1938
John H. Jewett, Jr., Lyons, N. Y.
Application April 15, 1936, Serial No. 74,575
13 Claims. (Cl. 117-22)
This invention relates to a feed for spinning
or twisting machines.
In the art of spinning it is frequently desir
able to produce novelty thread or yarn. By nov
5 elty thread is meant a thread in which the
strands that are twisted are not fed to the spin
ning bobbin at uniform rates of speed. Where
the rate of feed is uneven the effect is to pro
duce a thread in which one strand will be
10 wrapped around another for a short distance so
that one strand will appear to entirely envelop
duced, it has been necessary to provide special
machinery, for this purpose. It is desirable to
provide a feed means adapted for use with stand
ard machinery so as to avoid the expense of
duplication of machinery. Therefore, a further
object of the invention is to provide a feed mech
anism to- produce novelty thread which may be
readily applied to existing standard machines.
Where a spinning or twisting machine is pro
vided with feed means of the type disclosed here
the other. By varying the rate of feed the effect
may be modi?ed or reversed along the length of
in to produce novelty thread, it is desirable that
such a machine be capable of producing ordinary
thread without the necessity of changing the feed
the thread. The unevenness in the ?nished
15 thread may take the form of spaced knots or
means. Therefore, a further object of the inven
tion is to provide an adjustable'strand feeding
rough portions, at which point there will be a
relatively larger amount of material. Such a
novelty thread or yarn may be produced by pro
viding an eccentric feed means to’ feed the indi
20 vidual strand to a spinning bobbin.
The broad general object of the invention is
to provide a feed means for the production of
novelty thread. Such an eccentric feed means is
disclosed in my co-pending application, Serial
25 No. 60,206, ?led January 22nd, 1936.
Where a feed device of the type shown in my
co-pending application is used, such a device will
produce only one effect in the ?nished thread. In
order to vary the effect it is necessary to substi
30 tute a differently shaped feed device. It is de
sirable to be able to vary the effect without hav
ing to substitute a different feeding mechanism.
Therefore, the speci?c object of this invention is
to provide a strand feeding device for a spinning
35 ‘machine to produce novelty thread, which feed
means will be adjustable so that various effects
may be produced in the ?nished thread.
In order to produce a novelty thread it is not
necessary that all of the strands which are to be
4 twisted be fed at varying speeds. Where two
strands are twisted together it is sufficient if the
rate of feed of one strand is varied while the
other strand may be constant as to its rate of
feed. Where more than two strands of material
45 are to be twisted into a single thread it may be
means for the production of novelty thread,
which feeding means may be adjusted to feed
desirable to have one or more of the strands or
all of them fed at varying rates of speed. Ac
cordingly, a further object of the invention is to
provide an adjustable feed device for a spin
several strands uniformly in the same manner
as a standard spinning machine.
Where novelty thread has been produced in the
past it has been customary to use a feed means in
which one or more strands of material are left
uncontrolled for short periods of time in order to
produce the desired effect. The disadvantage of
such devices is that the results which are ob
tained are not uniform in the novelty effect, and
sometimes impossible of reproduction at a later
date. Accordingly, a further object of this in
vention is to provide a feed device for producing
novelty thread in which all of the strands will be '03
under positive control at all times. To this end a
further object of the invention is to provide a V
roll in which a single strand may be gripped, and
in which there will be, no possibility of slippage.
In the past, where novelty thread has been pro 35.;
duced, it has been customary to have all of the
strands moving forward‘ at varying speeds, or’ to
have one strand standing still momentarily while
another strand is wrapped about the ?rst strand.
In either case, it sometimes is desirable to have
one strand wrapped about another for a short
distance and then have the same strand re
wrappedabout the other again so as to provide a
layer of wrappings.
This result is achieved by
permitting one strand to wrap around another
for a short distance, while one or both strands
are traveling forward. The inner or base strand
is then retracted for a short distance which
causes the outer or covering strand to wrap
around the same portion again, thus producing
50 ning machine so that the rate of feed of one or
'more strands may be varied.
In standard spinning or twisting machines
great care must be used to insure the even feed
of the strands which are to be twisted together. ,
more strands may be retracted to permit the for
55v _In the past, where novelty thread has been pro.
mation of a novelty effect in the ?nished thread.
the effect of a layer. Therefore, a further object
of this invention is to provide a method of twist
ing strands to form a thread in which one or
The invention consists of the construction,
combination and arrangement of parts, and the
steps of the method, as herein illustrated, de
scribed and claimed.
In the accompanying drawing, forming part
hereof, is illustrated one embodiment of the in
vention, in which drawing similar reference
characters designate corresponding parts, and in
Also carried by the housing 25 is a shaft 32
similar in construction to the pins 21, but having
its outer end 33 threaded to receive a nut 34.
Carried by the shaft 32 is a plurality of V-shaped
feed rolls designated generally as 35. The rolls
35 may be of any desired construction, or they
may be formed of a plurality of curved plates 36,
as shown in Figure 4. By making each roll 35
of two plates 36 it is possible to use metal stamp
ings. It is essential that the baseof the V be 10
Figure l is a side elevation of a strand feeding
device together with supply and spinning bobbins;
sharply de?ned so as to grip a single strand of
If desired, the contiguous faces of the
Figure 2 is a vertical section, partly in eleva»
I material.
tion, taken approximately on line 2—-2 of Figure
plates 36 may be machined to insure a proper
strand-gripping means. By using such a feed roll
it is not necessary to wrap the material around 15
the roll, but slippage is prevented as long as the
material is engaged by a portion of the roll 35.
1, looking in the direction indicated by the ar
15 rows;
Figure 3 is an enlarged side elevation of the
feed device; and,
Figure 4 is a fragmentary detail in horizontal
section, taken approximately on line 4-4 of ‘Fig
20 ure 3, looking downward.
Any desired number of V rolls 35 may be built
,up on the shaft 32 and be held rigidly in position
between the shoulder 28 and the nut 34. it will 20
be noted that the shaft 32 may be rotated with
respect to the retaining nut 30 so as to permit
adjustment on the housing 25 without disturbing
Referring to the drawing, and particularly 'to
Figure 1, 5 designates the'supply bobbins. Any
desired number of strands may be ‘twisted into a
single thread, but three have been shown for the
251 purpose. of this. speci?cation. From the supply
bobbins 5, the individual strands, 6, 1 and 8, are
the plates 36 which make up the rolls 35.
The operation of the feed is as follows: .
The spiral guide 18 is disposed in alignment»
led through ‘eyes 9 of a common form of stop mo
tion and then to a spiral guide ID. The guide 10
with the feed rolls 35.
One strand 6 is led over
the'?rst turn of the guide it! and thence to ‘the
?rst roll 35, and back to the second turn of the
spiral guide l6,- passing over the upper pin '21.
The second strand 1 isapplied in the same man
ner except that it is applied to the second roll 35
is formed with an extension II so that the guide
may be mounted on ‘any convenient portion of
the spinning machine l4. From the guide ID the
individual strands are led to the feed means
designated generally as l2. From the feed means
l2 the strands are returned to the spiral guide I 0
and passes over the second pin 21.
Referring to Figures ,2 and 3, the feed means
comprises a'frame .|5 which is adjustably carried
It will be noted that the-lower pin 21- is longer
than the upper pin and the strand 1 is so placed
in the spiral guide ID as to clear the outer end 3i
of the upper pin 21. The third strand 8 is applied /
merely ‘around a roll 35 and lead in the guide I6
on a rod 16 and held in place by a set screw I 1.
so as to clear both of the pins 21. k _
5 and thence to. a spinning bobbin l3 which is car
ried by the machine i4.
. ,
4o vThe rod I6 is .a part .of the ‘spinning machine.
Instead of the usualfeed roll on the shaft 20,
55 .an open-ended housing'25 is rigidly secured to
or carried by the shaft 20. The housing 25 may
berectangular in cross-section and 'is provided
with a longitudinal slot 26. Disposed through the
slot.26 are one or more pins 21, each provided with
a squared shoulder28 to abut the outer face‘of
the housing-25.. 'The inner end 29 of the pin 21
is threaded toreceive a nut 38 disposed within
the housing 25. The nut 30 is of such dimensions
that .it cannot rotate. in the housing 25 but is
65 free to move longitudinally of'the housing. The
pin or pins 21 may be rigidly secured at any
point along the housing 25 and may be loosened
for the purpose of adjustment by. applying a
wrench to the squared shoulder 28. It Will be
70 ‘clear that the pins'21‘ may be entirely'removed
by merely unscrewing them slightly and sliding
them out of the open~end of the housing 25. The
outer ends of the pins 21 are formed with a bead
3| to prevent a strand of material from
end of the pin.
751 siover the
sliding '
housing 25 rotates on a center shown as a broken
a setscrew 23 carried in a shoulder 22 of the
line 31 in Figure 2. This causes a feeding of’ the
pinion 2|. The pinion 2| and shaft 20 are oper
The ‘foregoing parts of the feed mechanism are
of common construction and oldwin'the art. Or
50..dinarily, the shaft '26 at. its end opposite the
pinion 2| would. support the usual form of feed
roll for providing a uniform feed for‘ producing
The pinion 2| is driven by the gear 24 and-the
Formed on'the frame! 5 is atubular extension I8
in which ‘is disposed a bushing l9.’ Carried in
the bushing l9 i's-a. rotatable shaft 26 .on the
end of which is secured a pinion 2] by means of
ated by a driving gear 24.
strands 6, 1, and 8 to the spinning bobbin [3.
The nature of the feed of the individual strands
will depend entirely on the relative locations
of the feed rolls 35 and pins 21- on the housing
In the, particular set-up shown in the"
drawing the strand 6 will feed more than the
strand 1 and both of thesestrands will be fed
more rapidly than the strand 8.
Where the upper side of a, pin 21' and the";
lower V of a. roll 35 are equidistant from the)“
center of rotation 31 the feed of a strand car
ried thereby will be practically uniform.‘ ‘Where ’
the two parts are not equidistant the feed will
be eccentric and vary during each revolution.’
It will be noted that strands 6 and 1 are sup-3'
ported on both sides of the center of rotation 31. I
Consequently, there is a constant though vari
able feed of these strands.
Strand 8 is carried only on the roll35. All of '
the roll 35is, on one side of the center of rota
tion 31, so that the feed of strand 8 will be for
ward during'the greater part of a single revo-'
lution, but the strand 8 will be retracted tem
porarily during a portion of the single revolu
In the position shown in Figure 3 the roll 35
carrying the strand 8 is almost at the extreme
point of retraction. From this point onward as me
the housing 25 rotates in the direction indi
cated by the arrow, the strand 8 will be fed for
ward until the roll 35 reaches the point’ nearest,
to‘ the guide Hi. This position may be readily i
visualized by reference to Figure 1. As the ‘ ro- ' "753i
tation continues the strand 8 vfrom. the vsupply
bobbin. 5 will be drawn'downwa-rdly,but the por
tion of the strand 8 which has already been fed.
to the guide I!) from the roll 35 will .be retracted.
until the roll 35 passes the .position'shownuin.
Figure 3 and will then be. fed forward again.
The effect of this retraction will be obvious.
During the forward feed of the strand 8 the
strands 5 and i will be Wrapped thereabout by
reason of the fact that they are feeding at a
faster rate since additional material is supplied
from the feed bobbins 5 by the action of the
pins 21. Consequently, the strands 5 and ‘I will
be wrapped in a layer around the strand 8. When
15 the retraction of the strand 8 is commenced the
strands 6 and 1 will still continue to wrap around
the strand 8, but in a reverse direction longi
tudinally of the strand 8 so as to again cover the
portion about which they were just wrapped.
20 This will produce the effect of layers of material
over an appreciable length of the ?nished thread
as distinguished from a mere knot which is
formed where there is no retraction.
It will be clear that endless variations in the
25 feed may be effected. If the shaft 32 with the
v rolls 35 is moved upward in the housing 25
so that the upper edge of the roll 35 is past the
center of rotation 31, there will be no retraction
of the strand 8. If the shaft 32 is moved into
alignment with the center of rotation 3'! the feed
of the strand 8 will be constant and uniform in
the same manner as a standard feed roll. It is
sometimes desirable to have one strand fed at a
constant uniform rate and produce the novelty
35 effect by having one or more strands wrapped
around the base strand. Where the pins 21 are
used the eccentricity of the feed of the indi
vidual strands will vary directly as the distance
from the center of rotation 31 to the pin 27 var
40 ies with relation to the distance from the cen
ter of rotation 31 to the extremity of the feed
roll 35.
It will be clear that any desired number of
pins 2'! and feed rolls 35 may be used. This will
depend upon how many strands are to be twisted
and whether or not a different speed is to be given
to each strand. Since the strand 6 passes over
the short pin 2'! which is further removed from
the center of rotation than the longer pin 21,
the longer pin 21 will have no bearing on or in
terfere with the progress of the strand 6. Since
the strand 1 clears the end of the short pin 21
this pin will not affect the strand ‘I. The same
thing applies where a greater number of pins
2? are used. It is only necessary that the shorter
pins be uppermost.
It will also be clear that the pins 21 may be
entirely removed and a plurality of shafts 32
carrying feed rolls 34 be substituted. This is
not necessary, however, since the V rolls are able
to maintain a suf?cient grip on the individual
strands to prevent slippage, and it is only nec
essary to provide the pins 21 to draw material
from the supply bobbins 5as the feed device ro
pins 21 maybe adjusted withv great'accuracy in
order to reproduce a previously achieved effect
in The
the ?nished
of the device ' to a,y standard
spinning machine will be obvious, . It . is onlyi
necessary to loosen theset'screwv 23 and'remove.
the shaft on which the standard feed roll is
carried. The housing 25 and shaft 20 are then
substituted and the standard spinning machine
is ready to produce novelty thread or yarn. The .10
effects to be produced can be de?nitely ?xed
since all of the strands are under positive con
trol at all times. Where a particular effect has
been produced it is only necessary .to note the
location of the parts and to reset the parts at 15
the same locations at any time in the future to
reproduce the same design in the ?nished thread.
Having thus fully described the invention, what
is claimed as new and desired to be secured
by Letters Patent is:
1. A strand feeding device comprising a single,
continuously rotatable member, a plurality of
independent strand feeding means operable from
the rotatable member and means to adjust the
strand feeding means to vary the feed of strands. 25
2. A strand feeding device comprising a con
tinuously rotatable supporting member and a
plurality of strand feeding means carried by and
adjustable with relation to the supporting mem
3. A strand feeding device comprising a con
tinuously rotatable supporting member and a
plurality of strand feeding means carried by and
adjustable with relation to the supporting mem
ber and with relation to each other.
4. A strand feeding device comprising an elon~
gated, slotted supporting member and a plurality
of feed members carried by the supporting mem
ber and projecting through the slot.
5. A strand feeding device comprising an elon
'7. A strand feeding device comprising a ro
tatable housing and V-shaped feed roll adjust
ably carried by the housing.
8. A strand feeding device comprising a rotat~
able housing and a V-shaped feed roll adjustably 55
carried by the housing, said V-shaped roll being
, formed of a pair of complementary curved plates.
9. A strand feeding device comprising a rotat
able slotted housing, a pin carried by the hous
ing, said pin having an enlarged portion to abut 60
the housing and a portion projecting from the
housing to ride against a strand and a second
strand contacting means carried by the housing.
10. A strand feeding device comprising a ro
If it is desirable at any time to use the
tatable slotted housing, adjustable strand feed
feed device for making standard thread with a
uniform feed, it is necessary only to remove the
pins 2'! entirely from the housing 25 and move
the shaft 32 upward into alignment with the cen
70 ter of rotation 31. In this position the feed rolls
35 will function as standard. feed rolls and de
ing means and means to secure the strand feed
65 tates.
liver all strands of material at a uniform rate
to the spinning bobbin l3.
If desired, calibrations may be placed on the
75 sides of the housing 25 so that the rolls 35 or
gated, slotted supporting member and a plu
rality of feed members carried by the support
ing member and projecting through the slot,
said feed members being movable in the slot of
the supporting member.
6. A strand feeding device comprising an elon
gated, slotted supporting member, a strand con
tacting pin disposed through the slot and a sec
ond strand contacting means disposed through
the slot.
ing means to the housing comprising a nut in
the housing to receive the end of a strand feed
ing element and an enlarged portion on the
strand feeding element to abut the housing.
11. A strand feeding device comprising a ro
tatable supporting member and strand feeding
means carried by the supporting member and
rotatable therewith, at least one of the feeding
means being located entirely on one side of the 75
center of rotation so as to ?rst'feed and then re
tract a strand.
12. The method of spinning which consists in
feeding a plurality of strands to a spinning bob
bin at varying rates of speed and retracting one
strand during the operation.
‘ 13.‘ 'I'he‘method of spinning‘ which consists in
feeding a plurality of strands to a spinning bob
bin, varying the rate of feed of at least one
strand and temporarily retracting at least one
strand at intervals.
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