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Патент USA US2135329

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Ndv. l, 1938.
P; s. CURRY
2,135,329
THREAD CARRIER CONTROL MECHANISM FOR STRAIGHT KNITTING MACHINES
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Filed April 20, 1954
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Nov. 1, 1938.
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2,135,329
THREAD CARR-1BR CONTROL MECHANISM FOR STRAIGHT-KNITTING MACHINES
Filed April 20, 1934 ‘
8 Sheets-Sheet 2 _
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Nbv. 1, 1938.
2,135,329
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THREAD CARRIER CONTROL MECHANISM FOR- STRAIGHT KNITTING MACHINES
Filed April 20, 1934
8 Sheets-Sheet 3
INVEN TOR:
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2,135,329
THREAD CARRIER CONTROL MECHANISM FOR STRAIGHT KNITTING MACHINES
Filed April 20, 1934
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NOV. 1, 1938.
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2,135,329
THREAD CARRIER CONTROL MECHANISM FOR STRAIGHT KNITTING MACHINES
Filed ‘April 2o,v 1934
8 Sheets-Sheet 5
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Nov. 1, 1938.
2,135,329
P. S. CURRY
THREAD CARRIER CONTROL MECHANISM FOR STRAIGHT KNITTING MACHINES
Filed April 20, 1934
8 Sheets-Sheet 6
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INVENTOR
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Nov. 1, 1938.
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2,135,329
THREAD“ CARRIER CONTROL MECHANISM FOR'STRAIGHT KNITTING MACHINES
Filed Aprii 20.11934
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NOV. 1, 1938.
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2,135,329
THREAD CARRIER CONTROL MECHANISM FOR STRAIGHT KNITTING MACHINES
Filed- April 20, 1934
76
8 Sheets-Sheet 8
2,135,329
Patented Nov. 1, 1938
UNITED STATES PATENT OFFICE
2,135,329
THREAD CARRIER CONTROL MECHANISM
FOR STRAIGHT KNITTING MACHINES
Percy S. Curry, Philadelphia, Pa., assignor to
Textile Machine Works, Wyomissing, Pa., a
corporation of Pennsylvania
Application April 20, 1934, Serial No. 721,519,
14 Claims. (Cl. 66—12'7)
This invention relates to mechanism 'for selec ‘ rier selector shaft on which the selector cams are
tively controlling a plurality of thread carrier secured; '
Fig. 8 is a plan View of the mechanism shown
bars or rods of a ?at or full fashioned knitting
in Fig. '7;
machine.
Fig. 9 is a transverse sectional elevation taken
5
One object of my invention is to provide means
for selectively releasing a plurality of the thread on the line 9--9, Fig. 3, showing the mechanism
for preventing overrunning or rotary drifting ‘of
bars which are yieldably connected toa recipro
the selector shaft;
cating drive member and brought into action suc
Fig. 10 is a longitudinal sectional elevation .
cessively, each for a single needle-traversing
taken on the line Ill-10, Fig, 9;
10
10 movement, in a predetermined order or cycle, with
Fig. 11 is a transverse sectional elevation taken
each bar controlling an individual thread for a
machine section, drawn from an individual cone on the line Il-H, Fig. 3, showing the carrier
or other yarn package, wherein all the threads locking mechanism;
Fig. 12 is a sectional elevation taken on the
are of substantially the same color and character,
15
line l2—l2, Fig. 11;
15 so that, particularly in the case of silk thread,
the inevitable uneven portions, (i. e. where one
portion of the thread is relatively thicker than
other portions thereof) will not be fed to the
needles of the knitting machine for the forma
tion of two or more successively knit and inter
looped courses of stitches, for the purpose of
eliminating or reducing to a minimum the for
mation of the so-called “shadows” frequently
found in knitted silk fabric and which in the case
of silk hosiery are referred to as “rings”.
Other objects and attendant advantages will
become readily apparent from the following de
tailed description of one illustrative embodiment
of my invention shown in the accompanying
drawings, in which:
~
Fig. 1 is a fragmentary perspective view illus
trating a plurality of carrier rods of a ?at knit
ting machine as drawing individual threads from
a plurality of yarn cones respectively;
Fig. 2 is a diagrammatic view illustrating one
order or cycle in which three carriers are suc
cessively actuated to lay the threads respectively
controlled thereby to the needles of the knitting
machine;
40
Fig. 3 is a longitudinally contracted plan view
of sufficient of a ?at knitting machine to illus
trate the application of the mechanism of the
present invention thereto; '
r
Fig. 4 is a transverse sectional elevation taken
on the line 4—4, Fig. 3, showing the carrier se
lecting mechanism in detail;
‘ "
Fig. 5 is a front elevational view looking in the
direction of the arrow A in Fig. 4;
50
Fig. 6 is a sectional elevation taken on the line
6--6, Fig. 5, showing the selector control cams
in detail;
Fig. 7 is a transverse sectional elevation taken
on the line 1-4, Fig. 3; showing the ratchet
55
mechanism for intermittently rotating the car
Fig. 13 is a transverse sectional elevation taken
on the line |3-—I3, Fig. 3, showing the carrier
releasing mechanism and the selector shaft rat
chet operating mechanism;
Fig. 14 is a rear elevation of the releasing 20
mechanism as viewed from the plane I4—|4,
Fig. 3;
v
Fig. 15 15a fragmentary transverse sectional
elevation taken on the line l5-l5, Fig. 3, show
ing the mechanism for rendering the carrier rod 25
locking mechanism inoperative;
Fig. 16 is a transverse sectional elevation taken
on the line l6—|6, Fig. 3, showing the synchro
nizing mechanism between the selector mecha
nism and the releasing mechanism;
30
Fig. 17 is a rear elevation of the synchronizing
mechanism as viewed from the plane l‘|-—l1,
Fig. 3; and
‘
Figs, 18 to 23, 18a. to 2311. and 18b to 2311- dia
grammatically illustrate the synchronization of
the carriers and carrier-releasing mechanism at
the opposite ends of the machine during a com
plete cycle involving the laying of three indi
vidual threads successively to the needles of the
machine for the formation of six courses of 40
stitches by the needles.
Figs. 1, 3, 4, 5,13, 14 and 16 disclose various
parts of Reading full fashioned knitting ma
chine embodying the mechanism and elements
of my invention.
For the sake of clearness I 45
have illustrated only those parts of the various
mechanisms necessary for an understanding of
the invention; the various other parts and mech
anisms and their manner of operation are well
known in the art, and are shown and described 50
in detail in the “Reading” Full Fashioned Knit
ting Machine Catalogue (copyright 1929) pub
lished by the Textile Machine Works, Reading,
Pennsylvania.
As shown in Figs. 3 and 4, one type of ?at 65
2
2,135,329
knitting machine, i. e. a full fashioned hosiery
plunger head 20 is provided with a steam 2|
knitting machine, employs eight thread carrier
bars or rods illustrated at I, 2, 3, 4, 5, 6, ‘l and 8
respectively, while other ?at machines employ
which is slidably mounted in the selector or
rocker 22. The head 20 and the ?ngers l8 and
I9 thereof are adapted for sliding movement in
the selector 22, relative to the carrier rods 2,
various numbers of carrier rods. Insofar as the
present invention is concerned any machine em
ploying two or more carrier rods is adaptable for
use in carrying out the principles of the present
invention.
10
In a full fashioned hosiery knitting machine
of the type selected for illustrating the present
invention, the carrier bars I to 8 inclusive are
3 and 5, for effecting engagement or disengage- .
ment of the ?ngers and the dogs on the carrier
rods, said head and ?ngers being maintained
in the desired position by means of a spring
prcssed detent 23 which is carried by the selector
22 and adapted to enter notches 24 and 25
formed in the stem 2| in spaced relation to each
mounted in parallel laterally spaced relation to
each other, for independent longitudinal recip
roc'ation, in a plurality of relatively spaced car
other longitudinally of said stem.
rier rod brackets l8 which.are secured to the
center bed beam H of the machine, said beam,
in turn, being secured to the main center and
box hi, on a short shaft 25 which is secured in
the selector by a set screw 21 with the ends of
the shaft extending in opposite directions from
the opposite sides of the selector and pivotally
mounted in bearings 28, 28 formed on arms 29,
29 which are formed integral with and extend
laterally from one side of the friction box I4.‘
end frames |2—l2 thereof.
The carrier rods l to 8 inclusive are adapted
to be reciprocated by the usual “Coulier” motion
of the machine through a longitudinally recip
rocable slide rod l3 (see Fig. 4) , on which is slid
ably mounted a series of friction boxes M. The
ll; SI friction boxes l5 normally are arranged to be
manually connected to and released from the
carrier rods I to 8 respectively, as desired.
The present invention, as a matter of illustra
tion, involves the use of but three of the carrier
rods, namely numbers 2, 3 and 5, for the sake
of convenience.
~
As shown in Fig. 1, the carrier rods 2, 3 and 5,
are provided with thread guides 2a, 3a and 511
respectively. The thread guides 2a, 3a and 5a.
receive and control individual knitting threads
X1, Y1, and Z1, respectively, which are drawn
therebyv from three separate yarn cones X, Y and
Z, through the usual tensioning and moistening
devices diagrammatically illustrated in Fig. 1.
The thread guides 20., 3a and 5a are adapted
to lay their respective threads X1, Y1, and Z1 to
one and the same group of needles, illustrated at
IS in Fig. 1, in a predetermined order, each for
knitting in the present case but a single course
of stitches at any one time, and with no one of
said threads being served to the needles for the
formation of another course of stitches until
each of the other threads X1, Y1, or Z1, as the
case may be, has been knitted into a single
course of stitches.
_
In accordance with the principles of the pres
ent invention, the selection of the carrier rods in
a de?nite predetermined order is effected auto
matically. As a matter of illustration the three
vi in threads in the present case are arranged to- be
fed to the needles in the order X1, Y1. ‘Z1, which
is repeated in corresponding cycles throughout
the knitting of the length of the fabric. each
thread making but a single course of stitches in
GO its turn in each cycle.
-
Each of the carrier rods 2, 3 and 5 is provided
with an actuating dog, illustrated at 2b, 3b and
51) respectively, by which these rods are adapted
to be selectively and automatically connected to
one of the friction boxes l4.
Each actuating dog comprises a pair of lugs
' l6, 16 (see Fig. 5) which are spaced longitudi
nally of the rod and form a recess l1 therebe
tween for the reception of one or the other of a
pair of connecting ?ngers-l8 or l9, as the case
may be.
_
The ?ngers l3 and I9 are formed on and pro
ject from the lower end of a plunger head 20
which latter is slidably moimted in the lower
75 end of a rod selecting rocker element 22. The
,
The selector or rocker 22 is mounted for piv
otal movement on and relative to the friction
The arms 29, 29 are also provided with the
second pair of bearings 30, 30 which encircle
and are adapted to be moved longitudinally of
a selector shaft 3!, which latter extends parallel
to the slide rod I3 and carrier rods l to 8
inclusive.
’
The shaft 31 is rotatably mounted in bearings
32, 32 (see Figs. 9 and 10) which are formed on 30
adjustable brackets 33, 33 respectively. Each of
the adjustable brackets 33 is pivotally mounted
on a bushing 34 which is carried in and extends
laterally from a bearing 35 formed on the end
of a ?xed bracket 36 secured to a suitable por
tion of the frame of the machine.
The bushings 34 in addition to providing a
pivotal ‘mounting for the adjusting brackets 33
provide a slidable bearing for the friction box
slide rod 13.
40
As shown in Fig. .9, each adjustable bracket 33
is provided with a pair of arms 31 and 38 in
the outer ends of which are threaded adjusting
bolts or screws 39 and 40 respectively, the ad
justing screw 39 bearing against the upper sur
face of the rigid bracket 36 while the adjusting
screw 40 bears against the underside of‘ a fric
tion box guide rod 13a. which is secured in and
extends between the rigid brackets 36, parallel to
the friction box ‘slide rod l3, whereby the brackets
33 may be adjusted about the axis of the slide
rod l3 for aligning the selector shaft 3| axially
with the bearings 30, 30 carried by the friction
box 14.
Adjacent the bearings 38, 38 (see Fig. 5) is a
pair of selector cams 4| and 42 respectively, each
of which is provided with a. sleeve-like hub 43 '
which is splined to the shaft 3| and is rotatably
mounted in the bearing 3|! adjacent which the
cam is positioned. Each sleeve hub 43 extends
beyond the opposite side of the bearing at which
its particular cam is located and is provided with
a. collar 44 secured thereto adjacent its outer end,
to prevent relative axial movement between the
bearing and the cam, whereby, under longitu—.
dinal reciprocation of the friction box 14, said
cams will be accordingly reciprocated relative
to and on the selector shaft 3! during each stroke
of reciprocation of the friction box II as it effects
longitudinal movement of one of the carrier rods
2, 3 or 5, as the case may be, through the selector
22 and ?ngers l8 and I9 carried thereby, to lay
the thread controlled by the guide thereon to the
needles 15 of the machine for the formation of
a single course of stitches.
3
2,185,829
At the end of each needle-traversing stroke
during reciprocatory movement of the friction
box M the selector shaft 3| is rotated, in the
present instance through an angle of 60°, where
by the carrier rod previously moved by the fric
tion box is released therefrom and whereby an
operative connection is established between the
friction box and another one of the thread bars,
depending upon the position to which the selec
10 tor 22 on the friction box I4 is moved by the above
noted partial rotation of the shaft 3|.
The intermittent 60° rotations of the selector
against the lug 69 against accidental engagement
of the pawl with the ratchet wheel 50.
Longitudinal movement of the carrier rods |
to 8 inclusive is limited by stops ‘I0, 10 carried
by the narrowing nuts 1|, ‘H at the opposite ends
of the machine respectively, said narrowing nuts
being moved inwardly in the usual manner in
conjunction with the transferring of the stitches,
as above referred to, by the usual narrowing
screws 12 which are actuated in the usual man
ner from the cam shaft 66 when said shaft is
shogged axially to effect said narrowing.
shaft 3| cause the cams 4| and 42 cooperatively
, As usual, the reciprocations of the friction box
to rock the selector 22 about its pivot, to release
15 the connecting ?nger, |8 or l9 as the case may be,
from the last operative carrier rod and to en
gage one of said ?ngers with the dog of the
carrier rod next in turn to be actuated.
The selective rocking of the selector 22 by the
20 cams 4| and 42 is effected through rollers Ma
and 420, which are respectively engaged by the
cams 4| and 42, said rollers Ma and 42a being
slide rod l3 are uniform and greater than the
rotatably mounted in angularly spaced relation
to each other and to the axis of the pivot shaft
26, of the selector 22.
‘
The intermittent 60° rotations of the selector
shaft 3| are effected by mechanism shown in
Figs. '7, 8 and 13. As shown in Figs. 7 and 8, the
selector shaft 3| has secured thereto a ratchet
wheel 5|]. Pivotally mounted on the shaft 3|
adjacent the ratchet wheel 50 is a pawl carrier
5|. Pivotally mounted at 52 on the pawl carrier
5| is a pawl 53 which is normally held in engage
ment with the ratchet wheel 50 by a spring 54
having one end secured to said pawl and its
opposite end secured to the pawl carrier 5|.
Pivotally attached at 55 to the pawl carrier 5|
is one end of a link 56, the opposite end of which
(see Fig. 13) is pivotally connected at 51 to one
40 arm 58 of a lever 59, which latter is pivotally
mounted at 60 on a bracket 6| secured to one of
the main longitudinal beams 62 of the machine.
The second arm 63 of the lever 59 is provided
maximum movement required by the friction box
M to effect full needle-traversing movements of
the carrier rods as determined by the positions
of the stops 1|] on the narrowing nuts '||, hence
the carrier rods | to 8 engage the stops ‘I0 and are
stopped in their opposite longitudinal movements 20
thereby. Such stopping of the carrier rods ef
fects similar stopping of the friction box l4.
In order to prevent rebounding of the carrierv
rods from the stops 10, each of the narrowing
nuts ‘II is provided with a guide bracket 13 for
a pair of arresting levers 14 which cooperate with
end abutments ‘I5 of plates ‘I6which are respec
tively carried by the carrier rods | to 8 inclu
sive. As the operating carrier rod is moved, for
example in the direction of the arrow‘ (see Fig. ‘
12), to engage its stop 10 on the narrowing nut
‘H the arresting levers ‘I4, 14 immediately drop
behind the abutments 15 and prevent rebounding
of the carrier rods when the same engage their
respective stops 10.
19 Li
When the rods are moved in the opposite direc
tion, in the course of their reciprocation, the ar
resting levers 14, 14 are raised to clear the top
edges of the plates 16, to permit movement of any
one or all of the carrier rods at one time.
The
arresting levers 14 and the mechanism by which
said levers are raised to permit the carrier rods,
one and all or any thereof, to be moved, is stand
ard equipment in this type of machine and forms
with a cam follower in the form of a roller 64
which engages the peripheral edge of a cam 65
no part of the present invention.
secured to the main cam shaft 66 of the machine.
As usual in full fashioned hosiery knitting
machines, the main cam shaft 66 is adapted to
In accordance with the principles of the present
invention, each of the carrier rods 2, 3 and 5, in
the present case, is individually locked against
be shogged axially to effect narrowing of the
fabric by inwardly transferring groups of stitches
adjacent each of the selvage edges of the fabric
being knit on the bank of needles l5, during
which time the thread carrier rods remain idle.
In order to prevent disruption of the predeter-'
longitudinal movement except at such time as one
mined order in which the thread carriers are to
be operated, in accordance with the present in
vention, shogging of the shaft 66 moves the cam
65 from under the roller 64 and moves a substan
tially circular disc 61 into alignment with said
roller, whereby rotation of the shaft 66, while
effecting the above noted narrowing of the fabric,
does not effect any intermittent rotation of the
selector shaft 3|.
The pawl 53 is provided with a handle 68 by
which the pawl may be moved out of operative
relation to the ratchet wheel 50 at such times
inclined surface 11 of said plate.
as it may be desirable to knit a plurality of suc
cessively interlooped courses of a single thread
stop-engaging position shown in Fig. 12, said
plunger immediately snapping off the rear edge
of the incline 11 into the notch 18 behind said in
clined surface and thereby locking the carrier 70
against movement in an opposite direction.
The locking plungers 80, 8| and 82 are adapted
fed to the needles I5 by a single carrier rod of
70 the machine, in which case the pawl 53 is swung
about its pivot 52 until the handle 68 of said
pawl rests against a lug 69 formed on the pawl
carrier 5|. During such movement of the pawl
the spring 54 crosses the center of the pivot 52
of said pawl and holds the handle 68 ?rmly
,
of said rods is selected to lay its particular 50
thread to the needles of the machine, and for
this purpose each of the plates 16 on the carriers
2, 3 and 5 is provided with an inclined cam sur
face 11 and a notch 18 immediately behind the
_
Secured to the guide bracket 13 for the arrest
ing levers ‘I4 is a housing 19 in which is slidably
mounted, in the present instance, three spring
pressed plungers 80, 8| and 82 adapted to cooper
ate with and to lock the carrier bars 2, 3 and 5 60
respectively, said plungers each being beveled at
its lower end, as indicated at 83, for engagement
with the cam surface 11 on the carrier rod with
which said plunger is associated to raise the
plunger in the housing .19 against the action of 65
its spring 84 as the carrier rod moves into the
to be actuated to release the rods 2, 3 and 5 at such >
time as said rods are selected for movement by
‘he selector 22 on the friction box l4. There is a 75
4
2,135,329
complete set of locking plungers at each end of
the machine for holding the rods 2, 3 and 5
against accidental movement regardless of the
end of the machine at which the rods may be
stopped.
.
The locking plungers 8|], BI and 82 at one end
this instance extended portions of 91a, 91a are
of the machine, for example the right end, (which
employed to carry a rod | |6a to which the springs '
for future reference are identi?ed as 89, BI and
82) are adapted to be released by a series of levers
85, 86 and ‘81 and those at the opposite or left
shown in Fig. 15.
end of the machine, identi?ed as 800., 8 la and 82a,
are adapted to be released by ‘a series of levers
85a, 86a and 81a respectively.
The right end series of levers is pivotally
mounted on a short shaft 88 carried by a bracket
“3a, HM and ||5q. are anchored in manner
a brake disc 98 mounted on one end thereof ad
jacent and in contact with a ?at braking surface
99 formed on one of the adjustable brackets 33
by which the shaft 3| is supported, said brake 15
89 which is secured to the narrowing nut 1| in
disc 98 being pressed against the braking surface
99 by a convexed spring disc I00 mounted on a.
squared portion |0| formed on one end of the
shaft 3|, the tensioning of the disc I00 being con
bracket 89a secured to the narrowing nut ‘H at
the said left hand endv of the machine as indi
cated in Figs. 3, 13 and 14.
The levers 85, B6 and 8'! at the right hand end
of the machine are under control of cams 90, 9|
and 92 respectively, which are splined to a releas
ing shaft 93 which extends across the back of the
machine from end to end thereof, as shown in Fig.
3. The levers 85a, 86a and 870, are under con»
trol of a series of cams 90a, 9m and 92a respec
tively which are also
shaft 93.
The cams 90, 9| and
machine are provided
posed at 120° apart at
splined to the releasing
92 at the right end of the
with releasing lobes dis
the one end of the shaft
, 93; said lobes are adapted to coact with the roll
ers I“), Hi and N2 of levers 85, 86, and 8? and
operate the latter against the action of the springs
H3, H4 and H5. The cams 9641, Ma and SZa-at
the opposite end of the shaft 533, although ar
ranged in 120° spaced relation to each other for
actuating the levers 85a, 86a and 810., are how
_ ever so disposed relative to shaft 93 as to have
their respective lobes coact with the rollers mm,
“Ia and ||2a of 85a, 86a and 81a and operate
the latter against the action of springs | Ha, I Ma.
and | |5a intermediate the operative actions of
the lobes on earns 99, 9i and 92, see Figs. 18 to 23
inclusive. From said ?gures it will be observed
that cams 90a, 9|, 92a, 80, 95a. and 92 are so po
sitioned on shaft 93 as to successively operate the
respective levers associated therewith at 60° inter
vals in the order named, a 60° rotative movement
of shaft 93, effected following each reciprocation
of the couliering mechanism, is in the present in
In Q1 stance required to move one cam out of operation
and in turn advance the following cam into op
eration, thereby requiring six reciprocations of
the couliering mechanism to complete one opera
tive cycle of the carrier release device.
The releasing shaft 93, like the selector shaft 3 i,
is adapted to be moved in intermittent steps of
60° and for the purpose of so operating the shaft
93, in synchronization with the shaft 3|, the shaft
3| is provided with a sprocket wheel 94 and the
shaft 93 is provided with a sprocket wheel 95.
Passing around the sprocket Wheels 94 and 95 is
a drive chain 96 (see Figs. 3, 16 and 17) .
The cams 90, 9| and 92 are mounted on and
splined to the shaft 93 between a pair of bearings
91, 91 which are carried by the bracket 89, where—
by, as the narrowing nut 1| at the right hand
end of the machine moves inwardly, the cams-are
correspondingly moved axially along the shaft 93;
extended portions of 91, 91 being employed to
carry a rod I IE to which the springs “3, I I4 and
_
In order to prevent excess rotary movement of 10
the shafts SI and 93, the shaft 3| is provided with
the manner indicated in Fig. 3 and the levers 85a,
. 86a and 8‘la'at the left end of the machine are
similarly pivoted on a shaft 88a carried by a
60
I I5 are anchored. The cams 90a, Glu and 92a are
similarly mounted between a pair of bearings 91a,
91a which are carried by the bracket 89a associ
ated with the narrowing nut ‘H at the left hand
end of the machine for movement therewith; in 5
trolled by a pair of nuts I02 threaded on a reduced
end I03 of the shaft 3|.
The operation of the mechanism forming the
subject of the present invention through a com
plete cycle involving the knitting of six inter;
looped courses of stitches by three different 25
‘threads will be fully understood upon referring '
to the illustrations of Figs. 2, 18 to 23, 18a to 23a
and 18b‘ to 23b inclusive.
With the ?nger l8 of the selector 22 in con
tact with the dog 2b of the carrier rod 2, the
friction box l4 ?rst moves to the right, as indi
cated by the arrow at in Figs. 2 and 18, until the
right end of the carrier 2 engages its stop 7|]
at the right end of the machine‘. At such time
the rod 2 is locked, in the manner above noted, 30
by the plunger 8|] (see Fig. 18b).
The shafts 3| and 93 are then synchronously
rotated to the extent of 60°, whereby the lock
ing plunger 8| (see Fig. 19b) is actuated to re
lease the carrier 3 and the selector 2? is rocked
to move the ?nger i9 into engagement with the
dog 36 on the rod 3.
The friction box M then moves to the left ear
rying the rod 3 in the direction of the arrow 12
(Fig. 19) until said rod engages its stop 10 at the
left end of the machine and the rod is engaged
and locked against reverse movement by the
locking plunger 8|a (see Fig. 190,).
The shafts 3| and 93 are then again rotated to '
the extent of 60°, whereby the ?nger IQ of the 50
selector 22 is moved into engagement with the
dog 5b of the rod 5. At the same time the
plunger 82a (see Fig. 20a) is actuated to release
the rod 5.
The friction box M then moves to the ,right, 55
carrying the rod 5 in the direction of arrow 0
(Fig. 20), until said rod engages its stop l'?‘ at
the right end of the machine and is engaged and
locked by the plunger 82 (see Fig. 20b).
The shafts SI and 93 are then again rotated to
the extent of 60°, whereby the ?nger l8 of the
selector 22 is brought into engagement with the
dog 22)‘ of the rod 2. At the same time the
plunger 8|] (see Fig. 21b) is actuated to release
the rod 2.
'
60'
65
The friction box M then moves to the left
carrying the rod 2 in the direction of the arrow
11 (see Fig. 21), until said rod engages its stop
‘10 at the left end of the machine and is engaged
and locked by the plunger 80a (Fig. 21a).
The shafts 3| and 93 are then rotated 60°,
causing the ?nger [9 to be moved into engage
ment with the dog 3b of the rod- '3, and the
plunger Bla is actuated to release the rod 3 (Fig.
22a), after which, movement of the friction box 75
5
2,135,329
l4 to the right carries the rod 3 in the direction
of the arrow e, (Fig. 22), until said rod engages
its stop 10 at the right end of the machine and
is engaged and locked by the plunger 8|
(Fig. 22b).
The shafts 3| and 93 then move another 60°
causing the ?nger Hi to move into engagement
with the dog 5b of the rod 5, the plunger 82
(see Fig. 23b) at the same time being operated
10 to release the rod 5.
The next movement of the friction box M to
the left carries the rod 5 in the direction of the
arrow 1‘ (Fig. 23), until said rod engages its stop
10 at the left end of the machine and is engaged
15 and locked by the plunger 8211 (Fig. 23a).
The shafts 3| and 93 are then rotated to the
extent'of 60° causing the ?nger l8 of the spe
lector 22 to be engaged with the dog 2b of the
rod 2, at the same time causing the plunger 80a
20 (see Fig. 18a) to release said rod 2 for the be
ginning of a repeat of the cycle as just described.
The above noted 60° rotations of the shafts
3| and 93 synchronously rotate the cams 4| and
42 and the cams 90, 9|, 92 and 90a, Ella, and
25 92a; such actuations of the cams 4| and 42
effecting the selection of the rod to be actuated
by the friction box H by rocking the selector 22
30
tudinally reciprocating all of said bars, and
means responsive to operation of the machine
including means for selectively connecting said
bars to said reciprocating means, means for ef
fecting said selections, means for locking said
bars against longitudinal movement, means for
releasing a selected bar from said locking means,
and means for synchronizing the actuations of
said selecting and releasing means including a‘
shaft rotated step-wise and common to both said 10
connecting and releasing means.
-
2. In a ?at knitting machine comprising a plu
rality of thread bars, means for reciprocating said
bars, means for selectively connecting said bars
to said reciprocating means, variable means ad 15
jacent the opposite ends respectively of said ma
chineand movable toward and away from each
other for limiting the extent of the reciprocations
of said bars, means carried by said variable
means for locking each bar independently 20
against reciprocation relative to said variable
means, means carried by the variable means at
each end of the machine for selectively releas
ing said bars from the locking means at such
ends of the machine, means for synchronizing 25
the actuations of the releasing means at the op
posite ends respectively of said machine, includ
into the proper position to place one or the other
of the selector fingers |8 or IS in proper engage
ing a control shaft extending from end to end
of said machine and to which the selecting means
ient with the dog 2b, 3b or 517 of the rods 2, 3
and 5 respectively; and the simultaneous actu
ation of. the cams 9|], 9|, 92, 98a, 9|a and 92a
effecting release of the selected rod by rocking
the lever 85, 86, 81, 85a, 86a or 81a, as the case
on said variable means are respectively splined, 30
and means for rotating said shaft.
3. In a ?at knitting machine comprising a plu
may be, to lift the locking plunger 88, 8|, 82, 80a,
8|a, or 8211., as the case maybe, out of the locking
notch 18 in the selected‘ rod.
7
In event of it being desired to knit a number
of succeeding courses of one and the same thread
40 the selector pawl 53 is thrown out of engage
ment from the ratchet wheel 50 on the selector
shaft 3| in the manner above noted, after which
the ‘thread desired for knitting may be manu
rality of thread bars, means for reciprocating
said bars, means for selectively connecting said
bars to said reciprocating means, variable means 35
adjacent the opposite ends respectively of said
machine and movable toward and away from
each other for limiting the extent of the recip
rocations of said bars, means carried by said
variable means for locking each bar independ
ently against reciprocation relative to said vari
40
hand by the medium of. a hand wheel I05 (see
Fig. 3) secured to the shaft 3|.
able means, means carried by the variable means
at each end of the machine for selectively re
leasing said bars from the locking means at
such ends of the machine, means for synchroniz 45
ing the actuations of the releasing means at
The friction box I4 and the one selected car
rier rod connected thereto will then operate in a
normal manner to knit any desired number of
successively knit and interlooped courses of
stitches by the one thread controlled by the
including a control shaft extending from end
to end of said machine and to which the select
ing means on said variable means are respectivee
ly splined, means for rotating said ‘shaft inter 50
ally selected by turning the selector shaft 3| by
selected carrier rod.
'
’
In such cases it may be desirable to release
all the carrier rods from their locking plungers
80, BI, 82, 80a, 8|a and 82a, in which case the
brackets 89 and 89a, which carry the levers 85,
86, 81 and 85a, 86a and 810,, respectively are each
provided with a short shaft Hi8, I06a, respec
tively having cams I01, |01a respectively secured
thereto and arranged, as shown‘ in Fig. 15, to
the opposite ends respectively’ofasaid machine,
mittently including pawl and ratchet mecha
nism, and means for oscillating said pawl rela
tive to said ratchet at the end of each stroke of
each reciprocation of said bar-reciprocating 55
means.
4. In a flat knitting mechine comprising a plu
rality of' thread bars, means for reciprocating
said bars, means for selectively connecting said
bars to said reciprocating means including a 60
rotary control shaft, means for independently‘
respectively, said cams or their respective shafts . locking said bars against‘ reciprocation, means
for releasing a bar selected for reciprocation in
being provided with handles I08 and I080. re
spectively, whereby said cams may be rotated to cluding a rotary control shaft, and means for
rock said levers and thereby lift said locking synchronizing the rotations of said control shafts
plungers out of the locking notches of said car» for effecting selection, connection and release of
one of said bars simultaneously.
rier rods.
5. In a ?at knitting machine comprising a plu
Of course, the selective thread carrier bar con=
trol means speci?cally shown and described can rality of thread bars, means for reciprocating
be changed and modi?ed in various ways without said bars, means for selectivelyv connecting said 70
departing from the invention herein disclosed bars to said reciprocating means including a
rotary control shaft, means for independently
and hereinafter claimed.
locking said bars against reciprocation, means
I claim:
.
for releasing a bar selected for reciprocation in
1. In a ?at knitting machine comprising a plu
cluding a rotary control shaft, means for in 75
75 rality of thread bars, a single means for longi
engage the levers 85, 86, 81 and @8511, 88a, 81a.
2,185,829
termittently rotating said control shafts, and
means for synchronizing the rotations of said
control shafts for effecting selection, connection
and release of one of said bars simultaneously.
6. In a ?at knitting machine comprising a plu
rality of thread bars, means for reciprocating
said bars, means for selectively connecting said
bars to .said reciprocating means including a
rotary control ‘shaft, means for independently
locking said bars against reciprocation, means
for releasing a bar selected for reciprocation in
cluding a rotary control shaft, means for inter
mittently rotating said control shafts, means for
synchronizing the rotations of said control shafts
for effecting selection,-connection and release
of one of said bars simultaneously, and brake
means on one of said control shafts for prevent
ing excess rotation of said shafts as'a result of
said then simultaneous operation by said inter
'20 mittent rotating means.
7. In a ?at knitting machine comprising a plu
rality of thread bars, means for reciprocating
said bars, means for selectively connecting said
bars to said reciprocating means including a ro
tary control shaft, means for independently look
ing said bars against reciprocation, means for
releasing a bar selected for reciprocation includ
ing a rotary control shaft, means for intermit
tently rotating said control shafts, means for
30 synchronizing the rotations of said control shafts
for effecting selection, connection and release of
one of said bars simultaneously, brake means on
one of said control shafts for preventing excess
rotation of said shafts as a result of said then
10. In a ?at knitting machine comprising a
plurality of thread carrier bars and a single
means for causing longitudinal thread laying
strokes of all said bars, in combination, selective
means for connecting said bars to said single
means singly and in predetermined sequence and
forchanging the connection from one bar to
another between each two successive thread lay
ing strokes, said selective means including a shaft
operating in stepwise fashion, individual locks 10
for said bars, heads on which said locks are
mounted, automatic means for moving said heads
lengthwise "of said bars, means exclusive of said _
bars for releasing from its said look only the bar
selected by said connecting means including a
shaft, and means for driving said second shaft
from said ?rst shaft.
} 11. In a flat full fashioned knitting machine,
in combination, a plurality of thread carrier bars
mounted for parallel reciprocation, means for 20
reciprocating said bars, an automatically movable
head having stops for determining the travel of
said bars, spring actuated locks on said head individual to said bars, a shaft near said head, re
leasing levers pivoted on said head and each asso
ciated with one of said locks, means splined on
said shaft near said head and individual to said
levers for actuating the levers of said head only
one at a time, and means to produce a stepwise
rotation of said shaft.
12. In a flat full fashioned knitting machine, -
the combination as set forth in claim 11 and in
which the locks include locking bolts mounted
above the thread carrier bars.
35 simultaneous operation by said intermittent ro
13. In a‘ ?at knitting machinecomprising a
tating means, and means for manually rotating ‘plurality of thread carrier bars and a single
said shafts for effecting selection and release of means for reciprocating all of said bars, the com
said bars independently of said intermittent ro
bination of means for locking said bars against
bars to said reciprocating means including a
rotary control shaft, means for independently
said reciprocation and including locking bolts
mounted above said bars, means for selectively 40
connecting said bars to said reciprocating means,
a plurality of levers respectively controlling said
bolts for said bars, and power means independ
ent of said bars and common to all said levers for
locking said bars against reciprocation, means
selectively operating said bolts to release only
for releasing a bar selected for reciprocation in
cluding a rotary control shaft, means for inter
yarn laying operation.
tating means.
I
8. In a flat knitting machine comprising a plu
rality of thread bars, means for reciprocating
said bars, means 'for selectively connecting said
mittently rotating said control shafts, means for
synchronizing the rotations of said control shafts
for effecting selection, connection and release of
one of said bars simultaneously, brake means on
one of said control shafts for preventing excess
rotation of said shafts as a result of said then
simultaneous operation by said intermittent ro
tating means, means for manually rotating said
shafts for effecting selection and release of said
bars independently of said intermittent rotating
means, and means for rendering said intermite
one of said bars preliminary to the beginning of a
‘
"
14. In a ?at knitting machine, in combination,
a cam shaft, a plurality of thread carrier bars,
operating means including a single friction box 50
for causing thread laying strokes of said bars,
selective means for connecting said ‘bars to said
operating means in predetermined sequence and I
for changing from one bar to another after each
thread laying stroke, locks for said bars, stops
for said bars, one or more movable supports on
9. In a Hat knitting machine, a group of thread
carrier bars, means including a step-rotated cam
which said locks and stops are mounted, power
means for shifting said support or supports at
predetermined times, and power operated means
for releasing from its lock a thread bar for oper—
ation at the beginning of a stroke of said friction
shaft for selecting said bars singly in predeter
box including a movement transmitting member
tent rotating means inoperative.
.
mined sequence, means for reciprocating said
bars to lay threads for knitting successive courses
65 in said sequence, locking members individual to
said bars spring pressed in the locking direction,
and power operated means independent of and
distinct from said bar reciprocating means in
cluding said step-rotated shaft for releasing said
selected bars from their locking means only one
at a time.
other than said yarn carrier bars, and arranged
to receive power impulses from the cam shaft,
means for transmitting said impulses from said
shaft to said member, and means to transmit
motion from said member to said locks arranged
to maintain‘ operative relation between the locks
and said member throughout the full range of
movement of said supports.
PERCY S. CURRY.
70
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