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Патент USA US3076335

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Feb. 5, 1963
R. SCHMIDT
3,076,325
PATTERN WHEEL
Filed Jan. '19. 1960
2 Sheets-Sheet l
Fig. I
4
6
Feb. 5, 1963,
'
v
R. s_cHMlnT
3,076,325
PATTERN WHEEL
Filed Jan. 19. 1960
2 Sheets-Sheet 2
f ß @il
l'
United States Patent 0
î
3,076,325
Ententes] Feb. 5, 1963
1
2
the >operating jack members are successively engaged by
3,076,325
Richard Schmidt, Stuttgart-Vaihingen, Germany, assigner
the actuating means during a revolution of the carrier, so
that the jack members are successively moved to the oper
ative position of the same and effect successive shifting
PATTERN WHEEL
to Franz Morat G.m.b.H., Stuttgart-Vaihingen, Ger
many
of the needles.
_
`
The carrier carries a set of radially projecting plates
Filed Jan. 19, 1960, Ser. No. 3,439
13 Claims. (Cl. (S6-50)
arranged in a circle and mesh with the needles so that
the needles revolving with the needle cylinder effect turn
ing of the carrier.
In one embodiment of the present invention, two elec
The present invention relates to a pattern wheel for a
circular knitting machine, and more particularly to a
pattern wheel which can be set by electromagnetic oper
ating means to effect the knitting of desired patterns.
It is known to provide in a pattern wheel of a circular
tromagnetic means are provided which are selectively en
engized to shift the actuating means between the operative
and inoperative positions thereof. In another embodi
ment of the invention, spring means urge the actuating
knitting machine, a plurality of radially shiftable needle
operating jacks which are set by -manual operation to
effect the knitting of selected patterns. However, the
pattern wheel arrangements of the prior art are incapable
of shifting the knitting machine from a condition produc
means to assume the inoperative position, andthe electro
magnetic means, when energized, effects shifting of the
actuating means toward the operating position. These
constructions have the disadvantage that'it is necessary
ing a ribbed knitted fabric to la condition producing a
to maintain the electromagnetic means in energized con
plain knitted fabric by an automatic or semi-automatic
dition for holding the actuating means in the actuating
operation.
position engaging selected »operating members.
It is one object of the present invention to provide a
pattern wheel which can be set during the knitting opera
tion to selectively effect knitting of a plain fabric or of
In the preferred embodiment of the present invention,
a contro-l member is provided against which a spring
loaded actuating member abuts. The electromagnetic
25 means shifts the control mmeber between a position in
a ribbed fabric. '
Another object of the present invention is to provide
which the control member holds the actuating means in
a pattern‘wheel which is set by electromagnetic means to
its actuating position, and another position permitting
effect the knitting of plain or ribbed fabrics.
Known knitting machines include clearing means for
clearing the machine by returning the needles, which were
shifted by the pattern Wheel, to a normal position.
Another object of the present invention is to provide a
pattern wheel which includes a clearing means which
effects clearing of the pattern wheel of a pattern set there
return of the actuating means to its inoperative position
under control of a spring. In this manner, energizing of
the electromagnetic means is only necessary for shifting
the pattern Wheel between a condition effecting knitting of
ribbed fabric to a condition effecting knitting of a plain
fabric.
.
The control member is preferably a toothed member
35 which is shifted by the electromagnetic means between
successive positions in which the actuating means engages
Another object of the present invention is to provide
1n.
-
Ia pattern Wheel with clearing means which return the
a‘too-th, or engages a recessed portion between two teeth
or corresponding projections. The actuating means is in
jacks which operate the lever to an inoperative position
after the needles have performed their desired operation. 40 actuating position when engaging a projection, and is in
its inoperative position when engaging a portion located
A further object of the present invention is to provide
between two projections.
in a pattern wheel clearing means which can be moved
between an inoperative position and a clearing position .
The novel features which are considered as character
`to effect clearing of the pattern wheel by retraction of
the jacks during revolution of the pattern wheel, when ,
desired.
The arrangement of the present invention in which the
clearing means is provided in the pattern wheel, and not
outside of the pattern wheel, has the advantagethat space
outside of the pattern wheel is not required for the clear
istic for the invention are set forth in particular in the ap
'ing means, and that unnecessary movements of the needles
>are avoided, which may have detrimental influence on
the quality of the knitted fabric.
It is therefore another object of the present invention i
to provide a pattern controlling arrangement of simple
and compact construction which takes up little space in
the machine.
'
With these objects in view, the present invention relates
pended claims. The invention itself, however, both as to
its construction and its method of operation together
with additional objects and advantages thereof, will be
best understood from the following description of specific
embodiments when read in connection with the accom
panying drawings, in which:
`
FÍG. 1 is :a plan view of a pattern wheel according to
one embodiment of the present invention;
'
FIG. 2 is a cross sectional view taken on line II-.-l1
in FIG. l; and
FIG. 3 is a fragmentary sectional View taken on line
lil-III in FIG. 1.
Y Referring now to the drawings, a stationary housing 1
has a threaded pin 2b attached thereto to which a bush
to a pattern Wheel for circular knitting machines and com
prises a stationary support, a carrier mounted on the sup
ing 2c is threadedly attached. Housing 1 has an inclined
tween an inoperative position and an operative position
together with the support plate 8 which is secured to
60 bottom face 1a. Another bushing 2 is connected by pins
2a to the housing 1 so that it is non-turnable mounted
port for turning movement, a set of needle operating jack
on the housing, but can be removed in axial direction
members mounted on the carrier for radial movement be
for raising associated needles, actuating means, preferably
a cam lever, mounted on the support for movement be
bushing 2.
The pattern wheel is turnably mounted on bushing 2
and includes a carrier 3 which is assembled of severa
parts held together by threaded means.
Plate members 4 are secured to the carrier 3 and ar
control means, preferably including electromagnetic
ranged in a circle around the -periphery thereof. The cir
means, operatively connected to the actuating means for
moving the same between its inoperative and actuating 70 `cumferential spacing between the plate members 4 cor
positions. When the actuating means are shifted to the
responds to the spacing of the needles on the needle cyl
tween an inoperative position and an actuating position
engaging at least one of the operating jack members, and
actuating position by the electromagnetic control means,
inder of the circular knitting machine, and plate members
3,076,325
3
4 project between the needles meshing in the same so
that the turning needle cylinder acts on the plate mem
bers 4 to turncarrier 3 on bushing 2 and relative to the
stationary support 8.
Intermediate, and alternating with the fixed plate mem
bers 4, a set of plate-shaped needle operating jack mem
bers are arranged in a circle whose center coincides with
the axis of rotation of carrier 3, and with the center of
the circle along Which plate members 4 are arranged.
Each needle operating jack member 5 is mounted on 10
4
25 effects a short angular movement of lever arm 22 in‘
counterclockwise direction so that lever 16 is shifted to
the position illustrated in broken lines, which is possible'
since pin 21 moves in the transverse slot 8a. Such move
ment of lever arm 16 shifts pawl 14 from the position
illustrated in dash-dot lines to the position illustrated in
broken lines, and eiîects turningof- toothed control wheel
13 for half a step, that is the angle between a tooth, and
a recessed portion between two teeth. In the event that
portion 9b of actuating lever means 9 is located on a
carrier 3 for movement in radial direction between a re-`
tooth, shifting of wheel 13 by pawl 14 will permit por
tracted inoperative position, and an outer operative posi
tion for engaging and raisingV an associated needle of the
circle of needles which surrounds the needle cylinder.
the inoperative position illustrated in dash-dot lines in
tion 9b to pass into a recess of wheel 13 and to assume
FIG. l. If electromagnetic means 18 is de-energized,
springs 19 and 15 will restore the movable control ele
ments 22, 16, and 14 to the initial position while actuat
ing lever means 9 remains in `its position abutting a tooth,
or a recess, respectively of the toothed control wheel 13.
The pattern wheel of the illustrated embodiment is set
actuating lever means 9 is located. In FIG. 2, only the 20 in the following manner: In the operative position illus
trated in broken lines, the camming arm of actuating lever
portion 9a of the actuating lever means 9 is visible, and
means 9 is held by a projecting tooth of the toothed
such portion is connected by a spring 11 to a pin 12
At the points of the circumference Where no jack mern
bers are operative, the needles are not raised during the
operation, and remain in a lower position.
Each of the jack members 5 has a projection 6 which
projects above the carrier 3 and into a plane in which an
wheel 13 in its operative position projecting into the cir
mounted in the stationary support part 8.
cular path of movement of the projection 6 of operating
The actuating lever means 9 is pivotally mounted on
a pivot pin l10 which is Asecured to the support part 8. 25 jack members 5. Plate members 4 are engaged by the
needles, so that carrier 3 turns with the revolving needles.
The other arm 9b of actuating lever means 9 is urged
As projections 6 pass the camming arm of actuating lever
by spring 11 toward the periphery of a toothed member
means 9, the respective operating jack members are suc
13 which is turnably mounted on support part 8 by
cessively advanced to operative positions engaging the
means of a pivot pin 13a. The end portion of lever
arm 9b is tapered to tit into the recessed portion between 30 butts of the needles, and since the plane in which the
jack members are located is inclined to the plane in which
-two adjacent teeth or projections of the toothed member
the needle butts move raising of the needles is effected,
Portion 9b has also an abutting face cooperating
and consequently a desired ribbed pattern is produced` inVA
with a corresponding abutting face on each projection of
the knitted fabric since only the raised needles catch the
member 13 so that actuating lever means 9 is held in
the position illustrated in broken lines in FIG. 1 when 35 fed yarn.
When it is desired to produce »a plain fabric, the elec-portion 9b is located opposite a tooth of the toothed
wheel 13. When` toothed wheel 13 turns half a step, the
tromagnetic means 18 is energized, so that armature 25
edge of_ portion 9b of actuating lever 9 is located inwardly
of the circle defined by the inner edges of projections 6
through an angle corresponding to half the pitch angle
of actuating lever means 9 projects into the circular path
lalong which the inner edges of projections 6 of jacks 5
mover during rotation of carrier 3 with members 4 and
This arm is suitably shaped to have a camming ac
position shown in dash-dot lines in FIG. l and located
outside of the path of movement of projections 6 of
needle operating jack members 5. Since the jack mem
is attracted, and shifts levers 22 and 16 from the posi,
tapered portion 9b passes into a recess, and actuating
tio`n illustrated in dash-’dot lines to the position illustrated
lever means 9 assumes the position shown in dash-dot
lines in FIG. 1. In this inoperative position, the outer 40 in broken lines, effecting shifting of toothed wheel 13
between two teeth of toothed wheel 13, so that the tapered
projection 9b falls into a recess between two teeth under
of jack members 5. For the sake of clarity, projections
the action of spring 11. The camming arm 9b of the
6 are only schematically indicated in FIG. l. In the
'operative position shown in broken lines, one arm 9b 45 actuating lever means 9 is retracted to an inoperative
bers 5, 6 remain in the inoperative retracted position, the
50 needles are not raised, and a plain fabric is knitted during
the turning movement of the pattern wheel. When elec
'6, so 4that at least one jack member, and normally a group
tionl onthev moving needle operating jack members 5,
lof jack members, is advanced from the normal inopera
tive position to >an outwardly located operative position
in which operating jack members 5 effect raising of the
respective associated needles. Since all jack members 55
tromagnetic means 18 is de-energized, actuating lever 9
nevertheless remains in its inoperative position, while
levers 22, 16, and pawl 14 are restored by springs 19
Y5_„6 successively pass actuating lever means 9 during ro
tation of ythe pattern wheel, any operating jack member
and 15 to the positions illustrated in dash-dot lines.
When electromagnetic means 18 is again energized,
another shifting movement of pawl 14 is effected, and
ca_n Ábe shifted during a revolution of the pattern wheel.
`'Ifhe toothed’wheel 13 is operated by a pawl v14 which
.toothed wheel 13 is turned half a step so that actuating
lever means 9 is turned to its operative position shown
l*pivot pin`1`7.
pin 21'is'screwed into lever 16, andl pro
,jectswthrough a >transverse `slot y8a in supporthpart 8 into
>18 is again de-energized and after the control levers 14,
16, 22 assume their initial positions. A pivot pin 27
,ïis'urgedbyaspring 15 on the support part 8 to engage 60 in broken lines since-portion 9b abuts the tip of -a tooth
of wheel 13. Actuating lever means 9 now remains in
toothed wheel 13. Pawl `14 is'pivotally mounted by
such operative‘position, even after electromagnetic means
_ra pin 15a on a lever 16 mounted on supportV part 8 bya
a longitudinal slot 22a provided in a lever arm 22 which 65 on supportV part 8 turnably supports a clearing cam means
26 'for movement between an outer inoperative position
26b spaced from the circular path of movement of projections 6, `and an inner clearing position 26a engaging
22 is secured to the armature 25 of electromagnetic means
iis located outside of the support part 8 and is mounted
.-onthe'sìame turntable about a pivot pin 23. Lever arm
18 which issecured >to the support- part 8. A spring 19
the outer edges of projections 6 of operating jack mem
is secured to a projecting arm 24 of lever arm 22, and 70 bers 5 in advanced positions for returning the same in
inward direction to the normal inoperative positions there
urges lever arm 22 to turn in 'clockwise direction as
of.
viewed in FIG. 1 into the position illustrated in solid
When clearing means 26 is in its clearing position, and
lines, so that lever 16 is normally held in the position
Iactuating means 9 yis in its actuating position engaging
.illustrated in> dash-dot lines in FIG. 1. When electro
magnetic means 18 is energized, the attracted armature 75 projections 6, each shifted operating jack member 5 is
3,076,325
5
returned to its normal inoperative position after raising
the respective needle so that electromagnetic means 18
can be repeatedly energized during one revolution of the
pattern wheel to vary the fabric. If it is desired to pro
duce a ribbed pattern during several revolutions of the
pattern Wheel, clearing means 26 is shifted to its inoper
ative position out of the path of movement of projections
6
so that said actuating means is moved to, and held in
said inoperative and >actuating positions, respectively,
when said control means moves to said control positions,
respectively; and electromagnetic means operatively con
nected to said control means for moving the same be
tween said control positions and being mounted on said
carrier.
6. However, clearing means 26 may also be permanently
2. Pattern wheel for -a circular knitting machine, com
fixed in the clearing position 26a so that the pattern wheel
prising, in combination, a stationary support; a carrier
is always cleared after a revolution.
10 mounted on said support for turning movement; a set of
It is evident that the electromagnetic means 18 can be
needle operating members arranged in circle and mounted
energized by actuation of a switch in the circuit of the
on said carrier for radial movement between an inoper
Winding of the electromagnetic means 13, so that a fully
ative position and an operative position for operating as
automatic operation is possible. The clearing means 26
sociated needles; actuating means mounted on said sup
can also be electromagnetically operated by connecting it
port for movement between an inoperative position and
to the armature of an electromagnetic means, not shown,
an actuating position engaging at least one of said oper
mounted on supports 1, 8 on which the pattern wheel is
ating members and successively engaging all said operat
mounted.
ing members during a revolution of said carrier for suc
From the above description of one embodiment of the
cessively moving said Ioperating members from said in
present invention, it will become apparent that the ac 20 operative position to said operative position of the same;
tuating means 9 is controlled by control means which
clearing cam means mounted on said support trailing said
include the electromagnetic means 18, 25, the levers 22,
.actuating means in the direction of rotation of said car»
16, the pawl 14, and the turnable control member 13, as
rier for engaging -at least one of said operating members
well as springs 11, 15 and 19.
in said operative position and -for successively engaging
A further embodiment of the present invention includes
all operating members in operative positions during a
the actuating lever means 9 with the control spring 11
revolution of said carrier for successively returning operas illustrated in FIG. 1. An electromagnetic means is
ating members in said operative position to said inoper
again provided, and 'directly connected to actuating lever
ative position; control means movable between at least
means 9 to shift the same against the action of spring 11,
two control position-s and operatively connected to said
and to hold actuating lever means 9 in the shifted posi~ 30 actuating means so that said actuating means is moved to,
tion. However, this embodiment has the disadvantage
and held in said inoperative and actuating positions, re~
that the electromagnetic means must remain energized as
spectively, when said control means moves to said control
long as actuating means 9 is in the respective’ position
thereof. Therefore, arresting means are preferably pro
vided to hold actuating lever means 9 in either of its posi
tions, and releasing means are provided for releasing the
releasing means when the electromagnetic means is either
energized, or de-energized.
It will be understood that each of the elements de 40
positions, respectively; and electromagnetic means oper
»atively connected to said control means for moving the
same between said control positions and being mounted
on said carrier.
3. Pattern wheel for a circular knitting machine, com
prising, in combination, a stationary support; a carrier
mounted on said support for turning movement; a set of
scribed above or two or more together, may also find a
needle operating members arranged in circle and mounted
useful application in other types of pattern wheels dif
on said'carrier for radial movement between an inoper
ì
ative position and an operative position for operating as
While the invention has been illustrated and described
sociated needles; actuating meansl mounted on said sup
as embodied in a pattern wheel provided with electro
port for movement between an` inoperative position and
magnetic control means, it is not intended to be limited to 45 an actuating position engaging at least one of said oper
the details shown, since’ various modiñcations and struc
ating members and successively engaging all said oper»
tural changes may be made without departing in any way
ating members `during a revolution of said carrier for
tering from the types described above.
erw,la~
from the spirit of the present invention.
successively moving said operating members from said
Without further analysis the foregoing will so vfully
inoperative position to said operative position of the
reveal the gist of the present invention that others can by 50 same; clearing cam means mounted on said support trail
applying current knowledge readily adapt it for various
ing said actuating means in the direction of rotation of
applications without omitting features that, from the
said carrier, said clearing cam means being s‘hiftable be
standpoint of prior art, fairly constitute essential charac~
tween an inoperative position and an operative position
teristics of the generic or specilic aspects of this invention
'for engaging at least one of said operating mem-bers in
said operative position and for successively engaging all
and, therefore, such adaptations should and are intended
to be comprehended within the meaning and range of
«operating members in operative positions during a revolu
equivalence of the following claims.
’
>
tion of said carrier for successivelyV returning operating
What is claimed and desired to be secured by Letters
members in said operative position to said inoperative
p'
.
'
~
position; control means lmovable between at least two
1. Pattern wheel for -a circular knitting machine, com 60 control positions and operatively connected to said ac
prising, in combination, a stationary support; a carrier
tuating means so that said actuating means is moved to,
and held in said inoperative and actuating positions, re
mounted on said support for turning movement; a set of
needle operating members arranged in circle and mounted
spectively, when said control means moves to said control
Patent is:
on said carrier for radial movement between an inoper
ative position and an operative position for operating
associated needles; actuating means mounted on said sup
port for movement between an inoperative position and
an actuating position engaging at least one of said yoper
ating mem-bers and successively engaging all said oper
ating members during a revolution of said carrier for
successively moving said operating members from said
inoperative position to said operative position of the same;
positions, respectively; and electromagnetic means oper
atively connected to said control means for moving the
Y same between said control positions and Ibeing mounted
on said carrier.
4. Pattern wheel for a circular knitting machine, corn
prising, in combination, a ‘stationary supp-ort; a carrier
mounted on said support for turning movement; a set of
needle operating members arranged in circle and mounted
on said carrier for Iradial movement between an inoper
control means movable between at least two control posi
ative‘position and an operative position for operating
tions and operatively connected to said actuating means
associated needles; -actuating means mounted on said sup~
soreness
7
ïportfforf-moveme'nt between an inoperative position and
*an actuating position engaging at least one of said oper
-ating -members and successively engaging all‘saíd operat
"ing members during a revolution of said carrier for suc
cessively movíng'fsaid operating members fromisaid in
-operative -position to said operative position of the same;
control means movable between at least two control posi
tions; biasing means connected to said actuating means
'forlui‘ging-the same to engage said control means’so~ that
said `actuating lmeans is moved to, and held in said in
operative and actuating positions, respectively, when said
control means moves to said control-positions, respective
'1y; and electromagneticmeans operatively connected to
8
mountedon said carrier for radial movement Vbetween an
inoperative position and an operative position for operat
ing associated needles; Vactuating cam means mounted on
-said support for movement >between an inoperative posi
tion and an actuating position engaging‘a group of said
operating members and successively engaging all said
operating members during a revolution of said ~carrier
r`for successively movingV said operating members from
said inoperative position to said operative position of the
same; spring means connected to said actuating cam
means and urging the same to said in operative position;
a toothed wheel turnably mounted on said support and
being engaged -by said lactuating cam means at the
periphery thereof under the action of said spring means,
said 'control means for` moving the same between said
15 said actuating cam means being in one of said positions
control positions and being mounted on said carrier.
thereof when engaging a tooth of said toothed wheel, and
‘5. Pattern wheel for a circularknitting machine, com
being in the other of said positions thereof when engag
prising, in combination, a stationary support; a carrier
ing a recessed portion between adjacent teeth of said
‘mounted on said support for turning movement; a'set of
tooth wheel; a lever pivotally mounted on said support;
4needle operating members arranged in circle and mounted
«onsaid carrier for radial movement between an inner 20 -pawl means pivotally mounted on said lever and being
linoperative position and an outer operative position
spring-loaded ’to engage the periphery of said toothed
wheel; `and electromagnetic means mounted on said sup
port carrier and including an armature having a lever
arm operatively connected to said lever for shifting the
same with said pawl means to‘efiect stepwise movement of
said toothed wheel through an angle corresponding to
\ating members Vand successively engaging all said Voper
the angle between a tooth and an adjacent recessed por
*ating members‘during a revolution of said carrier for
tion of said 4toothed wheel so that upon energization of
successively moving said operating members from said
said electro-magnetic means, said actuating cam means
inoperative position to ‘said operative position of the
same; control means shiftable between at least two con 30 is urged by said toothed wheel to assume either said ac
Yfor 'operating associated needles; actuating cam means
4mounted on said support inwardly of said operating
YAmembers for movement between an inoperative position
"and anv actuating position engaging a group of said oper 25
utrol positions; biasing means connected'to said actuating
'cam means for urging the~same `to about said control
Hmeans'so that said actuating cam means is moved to, and
held in said inoperative and actuating positions when said
'control means moves to said control positions, respec
tively; and electromagnetic means operatively connected
»to said control‘m-eans for moving the same between'said
’control positions and being mounted -on said carrier.
6. Pattern'wheel for a circular knitting machine, com
prising, in combination, a stationaryïsupport; -a carrier
--mounted'on said support for'turning movement; a set of
'needle operating 'members arranged in a circle and
mounted on’said carrier for radial movement between
an inoperative position and an operative position-for op
`erating associated needles; actuating' cam means mounted
Von said support for movement between an inoperative
Iposition and an actuating‘position engaging ‘a group of
tuating position or said inoperative position.
8. A pattern wheel as set forth in claim 7 wherein said
lever has a projection; wherein said lever arm of said
armature has a slot extending in direction of said lever
and receiving said projection.
9. A pattern wheel as set `forth in claim 7 wherein said
actuating cam means is a double-armed lever pivotally
mounted on said support; wherein said spring means is
connected to one arm of said double-armed lever, and
wherein the other arm of said double-armed lever has
a tapered portion litting into the recessed portions of
said toothed wheel, said tapered portion having an abut
ment face for abutting on the ends of the teeth of said
toothed wheel.
l0. A pattern wheel‘las setl forth in claim 7 and includ
ing aset of plate members arranged in a circle fixed to
said carrier and adapted to engage needles rotating in a
circle so that said carrier is turned; said needle operating
members b_eing narrow plates slidably guided on said
' for successively movingsaid operating members from said 50 lcarrier for radial movement and being located inter
mediate said plate members.
inoperative position to~said operative position ofthe
said operating members and»successivelyfengaging'all said
operating members during »a-revolution of lsaid carrier
i same; spring means connected to-'said actuating cam means
and urging the same tov said inoperative positionja toothed
wheel turn-ably mounted on said support and being en
gaged by said actuating cam means at the periphery there
of under the action 'ofv said’spring meanspsa'id actuating
cam means‘being in one of said'po'sitions thereof when
engaging a tooth of said toothed wheel, and lbeing in
the other ofsaid positions thereof when Vengaging'ía-re
ll. Pattern wheel for a circular knitting machine,
comprising, lin combination, a stationary support; a car
rier -mounted on vsaid support for turning movement; a
set of needle operating members arranged in circle and
`mounted on said «carrier for radial movement between
an inoperative position and an operative position for
operating associated needles; lactuating cam means
mounted on said supportfor movement between an in
operative position and an actuating position engaging a
cessed portion between adjacent teeth of said toothV wheel; 60 group'of said operating members and'successively en
pawl means movablymounted on said -support and'en
gaging all'said operating members during a revolution of
gaging the periphery ‘of said toothed wheel; and Aelectro
said _carrier for successively moving said operating mem
magnetic means operatively connected to said pawl'means
bers from said inoperative position to said operative posi
' for shifting the same to effect stepwise movement of said
65 tion of -the same; springm'eans connected to said actuating
vtoothed wheel through 'anangle corresponding to the
lcam means and urging the same to said inoperative posi
angle between `a tooth and an 'adjacent recessed portion
tion; a control member turnably mounted on said sup
of said toothed wheel so that upon energization of said
lport for movement between at least two positions and
electromagnetic means, said actuating'cam meansis urged
being engaged by said >actuating cam means under the
-by said toothed wheelfto assume eithersaid actuating 70 action of said spring means, said actuating cam means
position or said inoperative position.
being rigidly held in one of said positions thereof when
l 7. Pattern wheel for a circular knitting machine,- com
4prising, in combination, a -stationary support; a carrier
mounted on said support for turning movement; a set
of needle operating members 'arranged in circle and
engaging said control member in one position and being
rigidly held in the other of said positions »thereof when
engaging said control member in the other position; and
electromagnetic means mounted on said carrier and opera
3,076,325
10
tively connected to said control member `for shifting the
needle operating members arranged in circle and
same so that upon energization of said electromagnetic
means, .said actuating cam means is urged by said control
mem-ber to assume either said actuating position or said
mounted on said carrier intermediate said plate members
for radial lmovement between an inoperative position and
inoperative position.
‘
12. Pattern wheel for a circular knitting machine,
comprising, in combination, la stationary support; a car
rier mounted on said support for turning movement; a
set of plate members arranged in a circle ñxed to said
an operative position for operating associated needles;
each of said needle operating members having a project
ing portion; actuating cam means mounted on said sup
port for movement between an inoperative position and
an actuating position engaging the projecting portion of
a group of said operating members and successively en
carrier circumferentially spaced from each other, said 10 gaging all said operating members during a revolution
plate members being adapted to engage needles revolv
of said carrier for successively moving said operating
ing in a circle so that said carrier is turned; a set of needle
members from said inoperative position to said opera
operating members arranged in circle and mounted on
said carrier intermediate said plate members for radial
tive position of the same; clearing means mounted on
said support trailing said actuating means in the direc
movement between an inoperative position and an opera 15 tio-n of rotation of said carrier for engaging said pro
tive position lfor operating Kassociated needles, each of
jecting portion of at least one of said operating members
‘ said needle operating members having a projecting por
in said operative position and for successively engaging
tion; actuating cam means mounted on said support for
all operating members in operative positions during a
movement between van inoperative position and »an ac
revolution of said carrier for successively returning operat
tuating position engaging the projecting portion of a 20 ing members in said operative position to said inopera
group of said operating members and successively en
tive position; spring means connected to said actuating
cam means and urging the same to said inoperative posi
of said carrier for successively moving `s_aid operating
tion; a toothed wheel turnably mounted on said support
members from .sai-d inoperative position to'said operative
and being engaged by said actuating cam means at the
position of the same; spring means connected to said ac 25 periphery thereof under the action of said spring means,
tuating oam means and urging the same to said inoperative
said :actuating cam means being rigidly held in one of
position; a control member turnably mounted on said
said positions thereof when engaging a tooth of said
support for movement between at least two positions and
toothed Wheel, and being rigidly held in the other of
being engaged by said actuating cam means under the
said positions thereof when engaging a recessed portion
30
`action of said spring means, said actua-ting cam means
between adjacent -teeth of said toothed wheel; pawl means
being rigidly held in one of said positions thereof when
`movably mounted on said support and engaging the
engaging said control member in one position, and be
periphery of said toothed wheel; and electromagnetic
ing rigidly held in the other of said positions thereof when
means mounted on said carrier and operatively connected
engaging said control member in the other position; and
to said pawl means for shifting the same to effect stepwise
`gaging all said operating members during a revolution
electromagnetic means mounted on said carrier and 35 movement of said toothed wheel through an angle corre
opera-tively connected to said control member for shift
sponding to the angle between a tooth and an adjacent re
ing the same so that upon energization of said electro
cessed portion of said toothed Wheel so that upon energiza
magnetic means, said actuating cam means is urged by
tion of said electromagnetic means, said actuating cam
said control member to assume either said actuating posi
`means is urged by said'toothed wheel to assume either
40
tion or said inoperative position.
said actuating position or said inoperative position.
13. Pattern Wheel for a circular knitting machine,
comprising, in combination, a stationary support; a car
riet mounted on said support for turning movement; a
set of plate members arranged in a circle ñxed to said
carrier circumferentially spaced from each other, said 45
plate members ybeing adapted to engage needles revolv
ing in a circle so that said carrier is turned; a set of
References Cited in the file of this patent
UNITED STATES PATENTS
2,025,463
2,094,660
Lombardi ___________ _.. Dec. 24, 1935
Lombardi ____________ __ Oct. 5, 1937
2,611,253
Diem ______________ __ Sept. 23, 1952
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