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Патент USA US2137362

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Nov. 22, 1938. ì
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C IRCULAR KNITTING MACHINE
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EALEB SMTTH
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Nov. 22, 1938.
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CIRCULAR KNITTING MACHINE
Filed-Aug. 18, 1936
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EAL'EB SMITH
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UEL L. PETERSIJH v
Nov. 22, 1938.
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2,137,362
CIRCULAR KNITTING MACHINE
Filed Aug. 18, 1936
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INVENT u R 5
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`2,131,362
Patented Nov.- 22, 1938 A
UNITED STATES PATENT oFF-ICE
CIRCULAR KNITTING MACHINE
Caleb Smith and Juel L. Peterson, Seneca Falls,
N. Y.; said lPeterson assigner to said Smith
Application August 18, 1938, Serial No. 96,6_32
l 12 claims. (Cl. 66-58)
This invention relates to certain new and use
movement from the level of the remaining nee
ful improvements in a circular knitting machine
and pertains more particularly to a machine for
knitting the ribbed fabric portion of a sock.
dles and jacks when the machine is positioned
' 5 stocking, or the like, with the wales in the two
parts co-extensive.
‘
In one method of manufacturing socks or
stockings of the class comprising a plain fabric
portion and a ribbed fabric portion, the plain
1o fabric portion of the sock or stocking is knit on
one knitting machine and then the ribbed fabric
portion is formed on a second knitting machine
comprising cylinder and dial needles. In trans
ferring the plain fabric portion of the sock or
15 stocking to the second or rib knitting machine,
only a portion of the stitches of the last course
of the plain fabric is placed onto the cylinder
< needles while the balance of the stitches are
placed on transfer jacks mounted on the needle
20 cylinder and then these latter stitches are trans
ferred from the jacks to corresponding dial nee
dles of the knitting machine. In effecting this
' transfer of the stitches of the last course of the
plain fabric to the circular knitting machine,
25 the stitches, insofar as we are aware, have -here
tofore been picked by hand onto the cylinder nee
dles and the transfer jacks with the result that
this transfer operation has been a relatively
- slow tedious and expensive. method of procedure.
30
The main object of this invention is to provide
an improved mechanism for knitting a ribbed
fabric onto a plain fabric. A more specific ob
to receive the formed stitches.-
Another object_of the invention is to provide
a rib knitting machine with simply constructed _ 5
and operated means for bringing the upper or
outer ends of all of the cylinder needles and
transfer jacks to a uniform predetermined level
and positively holding them _at said level.
'
A further object oLthe invention resides in 10
providing a knitting machine of the above men
tioned class with simple and eñlcient means for
transferring the stitches from the transfer jacks
to corresponding dial needles of the machine
whereby the wales in the ribbed portion of the 15
fabric will be formed co-extensive with those
in the plain portion thereof.
Another important object of this invention is
to provide a circular knitting machine with im
proved fabric feeding ortake-up means whereby. 20
the following advantages are obtained:
First-the knitting machine may be success
fully operated at a much higher rate of speed
than is practical when using the well known con
ventional types of i’eerl.4
’
25
Second-_only one setting of the feed means
is required for different thicknessesor conditions
of fabric, whether caused by use- of yarn of dif
ferent weights or by use of different stitches as
plain, rib'or cardigan. or when the stitches are Sii
of different lengths.
_
‘
'
-
.
Third-the tension or strain upon the fabric
ject of the invention is to produce a circular knit- ' incident to maintaining the same under operat
ting machine for knitting to the plain fabric
35 portion the ribbed fabric portion of socks, stock
ings, or the like, whereby all the last row of
stitches of the plain fabric portion ma'y be sub
stantially simultaneously transferred upon the
cylinder needles and transfer jacks. j
40
In accomplishing the above mentioned object,
we first knit the plain fabric portion ofthe ar
ticle upon a flat knitting machine and then
utilize a conventionally constructed transfer ring
in transferringthe plain fabric to the cylinder
45 needles and transfer jacks ofthe rib knitting
machine. Insofar as the applicants are aware,
it is not practical when knitting stockings or the
like by- the first method hereinbefore mentioned
to utilize a transfer ring for directly placing the
50 loops of the last row of stitches of the plain
ing tension during the knitting operation is re
duced to a minimum.
providing „themachine with simple and efñcient
automatic yarn control means whereby two or
more yarns of different or contrasting colors or
materials may be selectively employed in the 40 .
knitting of stockings or similar articles.
A further object of this invention is to produce
a circular rib knitting machine which is simple, »
durable and' economical in construction and op
eration. In carrying out this latter object, we 4s
have produced a machine having but three cam
tracks. one for the cylinder needles, one for the
dial needles,V and one for the transfer Jacks.
These cam tracks are separate and distinct from
each other and Athe jacks and associated needles 50
fabric onto the cylinder needles and transfer
always operatively engage in their respective,
jacks of the rib knitting machine for the reason
tracks andV are never transferred from one cam
that certain of the cylinder needles, particularly
track to another, thereby eliminating the ex
pensive and intricate mechanism required when
those adjacent the stitch and cast-olf cams are
35' _
- Still another object of the invention resides in
55 not supported against downward longitudinal „ effecting the movement of the cylinder needles ß
À
2
8,187,382
or transfer jacks, or both, from one cam track to '
view taken on line 22-23, Figure 2, illustrating
another as is often the case in machines of this
the feed or take-up mechanism in elevation with
a portion thereof broken away and in section.
type.
’
Other objects and advantages will be brought
out in the following description taken in con
nection with the accompanying drawings in
which:
.
-
_
Figure 1 is an elevation of the right hand side
of a rib knitting' machine embodying the various
10 features of this invention illustrating certain
portions .thereof broken away and in section, the
view being taken substantially in the plane of
the line I--I, Figure 2.
,
Figure 2 is a transverse vertical 'sectional view
taken substantially on line 2-2, Figure 1.
`
Figure 3 is a side elevation of the upper por
tion of the machine illustrated in Figures 1 and
2, showing the same viewed from the left hand
side and with portions thereof broken away and
in section.
=
Figure 4 is a detail horizontal sectional view
taken on line 4-4, Figure 2.
'
Figure 5 is a detail horizontal sectional view
taken on line 5-5, Figure 3.
Figures 6 and 7 are enlarged horizontal sec
tional views taken respectively on lines 5_6, and
1-1, Figure 2.
Figure 8 is an enlarged detail vertical sec
tional view taken on line .-4, Figure 1.
Figure 9 is a detail vertical sectional view
taken substantially in the plane of the line 8_4,
Figure 6.
'
'
l
Figures 10 and 11 are detail sectional. views
taken respectively on lines IO-III and II---II,
35
Figure 9.
‘
Figure 24 is a development of the cylinder nee
die cam track and Vof the jack track, illustrat
ing the cast-olf and stitch cams'in the operative
position and a portion of the cylinder needles and
jacks associated therewith.
yFigure 25 is a view similar to Figure 24 illus
trating the cylinder stitch and cast-off cams in
the inoperative position and the jack track ele
vated in respect to the needle track for main
taining the cylinder needles and` transfer jacks
at a uniform elevation for transferring.
Figure 26 is a development showing diagram
matically the various cams carried by the pat
, tern drum.
Figure 27 is a detail vertical sectional view of
the needle cylinder and a transfer ring having
the terminal loops of the plain fabric thereon
mounted on the cylinder needles and transfer
jacks in operative engagement therewith for
transferring.
Figure 28 is a view similar to Figure 27, illus
trating the terminal loops of the vplain fabric 25
transferred from the quills of the transfer ring
onto the corresponding cylinder needles and
transfer jacks;
'
'
Figure 29 is a fragmentary horizontal sectional
view illustrating a modified form of my novel 30
feed means.
‘
, Figure 30 is a detail sectional view taken on
line III-_85, Figure 29.
`
The machine, as illustrated in the drawings,
comprises a base I, a bed plate 2, secured to the
upper end of the base I and a standard 3 mount
ed upon the rear portion of the bed plate 2. A
bearing housing 4, as shown in Figure 2, is se
Figure l2 is ardetail horizontal sectional view
taken in the plane of the upper yarn guide fin
gers and intermediate the upper and next lower
yarn clamp members positioned at the right handv ' cured to the rear portion of the base I and bed
side of the machine as viewed in Figure 8 and plate 2 for rotatably supporting a drive shaft 5
illustrating the upper guide finger moved to an which is Journaled in spaced bearing members 6
mounted in the housing 4.
outer position for maintaining the yarn asso
'I'he outer end of shaft 5 has secured thereto
ciated therewith in cooperative relation with the
a pulley 8 adapted to be operatively connected
dial and cylinder needles.
`
Figure 13 is a fragmentary rear elevation of with a suitable source of power, not shown, for
the pattern drum and adjacent push bars, and rotating the shaft 5. The shaft 5 is provided
illustrates the feed sprocket wheel and a portion with a pinion gear 8 which, in this instance, is
made integral with the shaft and -which is in
:vfmt‘he cam chain in operative relation there
meshing engagement with a drive gear I 0 secured
Figure 14 is a detail central vertical sectional to one end 'of a stub shaft II which is rotatably
view through the upper rear portion of the dial mounted, as shown, in Figure _2, in a bearing
supporting bracket taken substantially on line housing I2 secured to the basel beneath the
shaft 5. Rotatably connected to the gear I0
I4-I4, Figure 18.
Figure 15 is an enlarged horizontal sectional as at I2, Figure 1, is a .feed pawl I4 which has
the free end thereof adapted to engage a _ratchet
view taken on line I5-I5, Figure 14.
Figure 16 is a detail vertical sectional view wheel I5 which is secured in any suitable man
ner to a shaft Ii journaled in the lower portions
taken on line I5-I6, Figure 14.
_
‘
Figure 1'1 is a detail side elevation of one of of the arms of a U-shaped bracket I1 secured to
the dial stitch cam operating levers and the the lower face of the bed plate 2 beneath the
means for actuating the same as` viewed from standard 2.
Secured to the shaft I5 is a pattern drum 20
line I‘I-I'I, Figure 6.
Figu're 18 is a detail vertical sectional' view for automatically controlling various mecha
illustrating a portion of the cylinder housing nisms of the apparatus as will hereinafter more
and jack ring in elevation with the pins and cam clearly appear. litotatablyA mounted upon the
grooves associated therewith for elevating and shaft I5 is a second ratchet wheel 2l to which
is secured a sprocket wheel 22 to rotate in uni
lowering the ring and the jacks associated there
son therewith. The sprocket wheel 22 is adapted
with.
'
'
Figures 19 and 20 are detail vertical sectional to operate a pattern chain 23V, 'I'he sprocket
views taken respectively on lines IQ--Il and wheel 2l and pattern chain 22 are intermittently
driven upon Aeach revolution of the gear I0 by
~ 20--20, Figure 18 on a reduced scale.
Figure 21 is a detail vertical sectional view >means of a feed pawl 24, pivotally connected at
one end as at 25 to the pawl I4, as shown in Fig
taken substantially on line 2I--2I, Figure 6.
,
Figure 22 is an enlarged vertical sectional view ure l.
'The feed action of the pawl I4 upon the ratchet
taken on line 22--22, Figure 21.
Figure 23 is an enlarged horizontal sectional whee1l5 is automatically controlled by cams 21
40
45
55
60
745>
2,137,362
3
connected with the chain 23 through the medium
spaced relation longitudinally of the cam hous
0f a chain rider arm 28 which is rotatably mount
ing to form a cam track ältherebetween for the
reception of the butts 52' of the needles 52. As
sociated with the cam track 51 are two pairs of
ed at one end upon a stud 29 secured to a bracket
30 mounted upon the bracket l1. The arm 28
is connected by any suitable means to Vone end
of a. spacer sleeve 3| rotatably mounted on studv
29 and which has secured to the opposite end
thereof an arm 32 which has pivotally secured
thereto as at 33 one end of a feed trip arm 34.
The arm 34 extends inwardly or forwardly from
the pivot 33 adjacent one face of the ratchet
wheel `l5 and has the free end thereof supported
by an annular ring or disk 35 secured to the
ratchet wheel l5, as shown in Figure 1.
The inner end of the trip arm 34 is so posi
tioned relative to a tooth of the ratchet I5 when
the pawl I4 is at the extreme end of its inward
or feeding stroke that when said pawl I 4 is moved
outwardly by the gear lil, the free end of the pawl
will engage the trip arm 34 and be moved there
by upwardly and be prevented from coming into
movable cam members arranged at substantially
diametrically opposite sides of the cam housing,
each of which comprises a cast-olf or clearing
cam 58 and a stitch cam 58.
The cast-off or
clearing cams 58 are arranged at the lower side
of the cam track 51 and are each provided with 10..
‘a boss or extension 60 which projects outwardly
through an elongated slot 6I provided in the
adjacent portion of the cam housing 50. In
each extension 60 is mounted a. vertically dis
posed r'ack member 62 which, in this instance, is 15
in the form of a rod, slidably mounted at the
ends thereof in outwardly extending lugs or
flanges 63 and 34 provided on the cam housing
50, as shown more particularly in Figures 1, 3
and 8.'
'
20
'
Each of the stitch cams 59 is arranged above
holding engagement with` the next succeeding
the cam track‘51 and is provided with a lug
or projection 65 which extends outwardly through ‘
When the chain rider arm 28 is engaged by -a l a corresponding slot 66 provided in the cam hous
tooth from that previously engaged by the pawl.
cam 21, the trip arm 34 will be moved rearwardly
thereby a suiiicient distance to maintain said
trip arm out of engaging relation with the feed
pawl I4 so that as said pawl is again moved for
wardly by the gear l0, the same will engage> the
next succeeding tooth and move the ratchet wheel
i5 forwardly one tooth space.
In other words, the chain ratchet 2l is moved
forwardly one tooth space by the pawl 24 during
each revolution of the gear I0, while the pattern
I drum 20 is moved forwardly a distance corre-
sponding to one to‘oth space of the feedratchet
l5 only when a chain cam 21 engages the arm
28 for maintaining the triparm 34 out of en
gagement with the feed pawl I4.
'
'
Needle cylinder
The rear portion of the bed plate 2 has mount
.ed therein a ball bearing member 31- in which
is mounted a vertically disposed drive shaft 38
which extends below the bearing 31 and has se
cured thereto a pinion gear 39. Secured to the
pinion gear 39 isa bevel gear 40 which is in mesh
ing engagement> with a similar bevel gear 4I
mounted upon the drive shaft 5. Rotatably
mounted upon the bed plate 2 a short distance
in front of the drive shaft 38 is a cylinder bear
ing ring 43 which has secured to the lower face
thereof a gear‘ring member 44 which is opera
tively connected with the pinion 39 by means of
55 an intermediate gear 45 rotatably mounted upon
astud 48 secured to the bead plate 2; see Figure 4.
The bearing ring 43 also has secured thereto
a needle cylinder 48 which extends upwardly
therefrom in co-axial alignment with the bear
ing ring 43 and ring gear 44. 'A cam housing 50
surrounds the needle cylinder 48 and is secured
to the bed plate l2 in fixed relation therewith.
The outer peripheral surface of the needle cylin
der 48 is provided with a multiplicity of longi
tudinally disposed grooves 5l arranged in uni
form circumferential spaced relation for the re
ception of thev cylinder needles 52 and transfer
vjacks 53, the jacks in this instance.4 being ar
ranged in every third groove, while the lneedles
70 are positioned in the grooves intermediate those
in which the jacks are mounted.'
In the upper portion of the interior of the cam
housing 50 is mountedin ñxed relation there
with a pair of ring members 55 and '56 composed
75 of hardened steel or the like, arranged in slightly
ing. 50. The lugs 55 for the stitch cams 59 are.
secured to a respective rack member 61 or 81'
which extend vertically through corresponding
openings provided in the lugs 63 and 64' respec
tively, adjacent the upper and lower ends there
of. Each pair of cams is operated independently 30
of the other pair of cams. and the cams of each
pair are simultaneously moved in opposite direc
tions to bring them into cooperative relation with
the cam track 51 and with the butts of the cylin
der needles 52 to eifect stitching and out of co 35
operative relation with said cam track and the
needle butts -for transfer in a manner which will
hereinafter more readily appear.
.
The means for operating the cast-off and stitch
cams 58 and 59 located at the right hand side
of ythe machine. as illustrated more particularly ,
in Figures l and 2, comprises a rack member. 69
mounted for longitudinal reciprocative movement
in a groove 118 provided in the bed plate 2 be
neath the cam housing 50. The rack 69 has a.
push rod 1I connected at one end therewith and
the other end of said rod is pivotally connected
to one arm of a bell crank lever structure 12
which is rotatably connected intermediate 'its
ends as at 13 to an upright bracket 14 secured
to the bed plate 2. The other arm of the bell
crank lever 12 extends rearwardly from the pivot
13 over the upper end of a push bar 15 which is
mounted for vertical reciprocative movement in
guide members 16 and'11 secured tothe bed plate
2 and bracket I1 respectively. The lower end
of the push bar 15 terminates adjacent the 'pat
tern drum 28 and is adapted to be operated by a
cam >member 18 secured in any suitable manner
to _the pattern drum 20 at one end thereof as
illustrated in Figure 13. `
lThe bell crank lever 12 is yieldingly maintained
in contact with the upper end of the push bar 15
by a coil spring 19 which also functions to yield
ingly move the rack 68 forwardly when the bell
Acrank lever is released- by the downward move
_ment of the push bar 15 as saidfbar is released
by the cam member 18.
The rack 69 is in meshing engagement with-a
pinion 80 rotatably mounted upon a shouldered 70
screw 8l secured to the adjacent portion of the
cam housing 58 intermediate the adjacent rack
members 62 and 31. A The pinion 80‘ is ,also in
meshing engagement with a segmental gear mem
ber 82 which is rotatably mounted upon a shoul
75
2,193,362
4
11 secured to the bracket member | 1, said push
dered screw 88 secured vto the cam housing 58.
The segmental gear member 82 also has meshing
engagement with the racks 82 and 91 as illus
trated in Figure 1, so that when the segmental
bar being moved upwardly by a suitable cam
member 98 mounted on the pattern drum 28. The
upper end of the push bar-94 is adapted to engage
gear member 82 is rocked about the pivot 88 a
corresponding reciprocating movement of the
one arm of a bell crank lever 96 which is rotat
ably connected asat 91 with the _standard 3. The
rack members 52 and 61 will be produced thereby
for moving the cams 58 and 59 connected thereto
toward or from the cam track 51.
The mechanism for operating the other pair of
cams 58 and 59 located at the left hand side of
the machine is constructed and operated in the
same manner as the mechanism just described
for operating the cam members located at the
right hand side of the machine with the excep
tion that instead of the yrack member 69 engaging
a pinion, it is in meshing engagement with a
segmental gear member 85 rotatably mounted on
a shouldered screw 88 secured to the cam housing
58 as shown in Figures 2 and 3. The segmental
gear 85 in this instance is in meshing engagement
with the rack member 81' connected with the
adjacent stitch cam 59 for reciprocating the rack
member and cam. Motion is transmitted from
the rack member 51' to the companion rack mem-v
ber 62 by means of a segmental gear member 82'
pivotally -mounted intermediate its ends on a
shouldered screw 81 secured to the cam housing
58.
The remaining mechanism, as hereinbefore
30
stated, for operating the cast-off cam 58 and
stitch cam 59 located at the left hand side of
the machine, is constructed in the same manner
as that previously described for the pair of cams
located at the right hand side of the machine and,
therefore, it is believed to be unnecessary to fur
ther describe the construction and operation
thereof.
Jack ring
The lower portion of the interior of the cam
housing 58 is'provided with an enlarged circular
recess 58' which extends inwardly from the lower
end thereof to a position in close proximity to the
lower positioned ring member 55 as shown in Fig
45 ure 2. In this recess 58' is mounted for axial
movement a jack ring 89 which is of less axial
length than said recess. The jack ring 89 is pro
vided on its inner surface with a circular recess
98 which forms a uniform track for receiving
the butts 53' of the transfer jacks 53 therein.
The jack ring 89 is provided with a pair of dia
metrically disposed cam slots. 9|, one of which
is shown in Figure 18. These cam slots extend
transversely of the jack* ring and receive therein
55 the end of a respective cam screw 92 which is
mounted in the adjacent portion of the housing
58 in fixed relation thereto. 'I'he cam slots 9| are
so arranged that when the jack ring 89 is rotated
in one direction, said ring will be moved axially
toward the ring members 55 and 58 for elevating
the transfer jacks to bring them from the‘ inoper
ative position withthe upper ends thereof in a
-plane below the upper ends of the needle cylin
ders 52 and when the jack ring is rotated in the
other arm of the bell crank lever 96 is connected
by a push rod 98 to a pin 99 which extends through
a cam slot |88 provided in the adjacent portion
of the cam housing 58 and has the inner end 10
thereof connected with the jack-ring 89, as illus
trated in Figures 3, 18 and 19. The rod 98 is con
nected with the pin 99 by means of a ball and
socket joint, illustrated at |8|, Figures 2, 3 and
19. The cam slot |88 is disposed in angular rela 15
tion to the axis of movement of the jack ring 89
similar to that of the cam slots 9|, while the up
per end as |88’ of the cam slot |88 and the lower
ends 9|’ of the cam slots 9| are arranged to ex
tend in a plane substantially normal to the axis 20
of movement of the jack ring so that when the
ring is moved to its uppermost position, the pins l
92 and 99 will register in these horizontal por
tions of the respective cam slots so that the jack
ring will be maintained thereby in its uppermost
position against being accidentally displaced by
vibratory movement or other means.
A spring
|8| yieldingly maintains lever 96 in contact with
push bar 94 and also produces rotation of the
jack ring to lift the jacks carriedl by the ring 30
when push bar 94 is released by cam 93.
As illustrated in Figure 2, the lower ends of
the needles 52 terminate some -distance above
the piane of the lower ends of the transfer jacks
58 and in each groove 5| containing a needle is 35
also mounted a needle jack |83 which has the
butt |88' thereof positioned in the jack ring
groove 98. 'I'he needle jacks |83 are similar in
construction and each one 'extends upwardly a
short distance beyond the upper edge of the jack 40
ring for engagement with the lower end of a cor
responding needle when the jack ring is moved
to its uppermost position, and when the ring is
in its lowermost inoperative position, the upper
ends of the needle jacks |83 terminate below the 45
needles so as to permit the free stitching opera
tion of said needles', as illustrated in Figure 8.
The distance from the butts |83’ of the needle
jacks |83 to the upper end of said jacks is uni
form for all of the needle jacks and this distance 50
is so proportioned‘relative to the construction
of the transfer jacks that when the jack ‘ring
is moved to its uppermost position, the needles 52
will be engaged by the needle jacks and main#
tained thereby .with their upper ends at a prede
termined uniform elevation.
Operating mechanism for dial needles,
The hereinbefore mentioned vertically disposed
drive shaft 88 extends upwardly some distance 60
beyond the plane of the upper end of the cam
housing 58 and needle cylinder 88 and extends
through a gear case |85 secured to or made in
tegral with a horizontally disposed dial support
ing bracket or head |85 which is mounted inter
65 opposite direction, said ring will be moved axially
mediate its ends upon the upper end of a guide
downwardly away from the ring members 55 and
55 for returning the transfer jacks 59 to the
post |81. The guide post |81 extends downward
ly from the head |86 through aligned’openings
70
65
lowermost inoperative position.4
|88 and |88 formed on the upper and lower por
Means for producing the necessary rotary
movement of the jack ring 89 to effect the axial
tions respectively of the standard 8, with the 70
lower end of said post terminating some distance
movement thereof comprises a push bar 94 slid- ~
ably mounted for vertical reciprocative movement
in a guide'nìember 95 secured to the standard 3
75 and in the hereinbefore mentioned guide member
below the bed plate 2. The post |81 is a tubular
lmember and has mounted therein a spring ||8
which has the upper end thereof in engagement
with a plug I || screw threaded in the upper end 75
s
2,187,862
of the post |01. 'I'he lower end of the spring is
supported by a bracket ||2 secured to or made
integral with the base I.
The head |08 is maintained in its lowermost
_ operative position against the action of the spring
||0 by means of a latch | I3 mounted upon a shaft
i|4 journaled in the upper end of standard 3.
The latch ||3 extends upwardly from the shaft
| |4 through a central slot or passage ||5 in the
head |08 and has the upper end thereof normally
maintained in holding engagement with a latch
plate ||8 secured to the bracket |00 by a spring
extending splines 33' upon which is slidably
mounted a pinion |21 which is positioned within
the gear case |05 as shown in Figure 2. The pin
ion |21 is in meshing engagement with a gear
|20 rotatably mounted upon a stud |20 secured
to the gear case. The gear |23 is also in mesh
ing engagement with a gear member |30 secured
to the upper end of a tubular shaft 13|.
The shaft |3| extends downwardly from with
in the case |05 and is journaled in a
sleeve |32 which, in turn, is secured in a pend
||1, Figure 14. The latch is rotatably mounted
ant boss |33 provided on the gear case |05. To
the lower end of sleeve |32 is secured a dial cam
in this instance, upon an eccentric sleeve ||4'
secured to or made integral with the shaft ||4
in such amanner that during the initial rota
tion of shaft lill, the latch is moved upwardly to
lift the head above latch plate ||8 and then dur
plate |35. The shaft i3l extends downwardly
beyond the dial cam plate |35 and sleeve |32
and has secured to the lower end thereof a dial
needle plate |38 which has the upper sui-fac
v ing the remainder of the rotary movement of the
shaft ||4 and sleeve ||4', the latch is rotated
forwardly against the action of spring Ii'i to
move the head away from the latch plate |18 by
thereof provided with a multiplicity of
= 1 .
disposed grooves |31
in uniform eir
cumferential spaced relation for the reception of zo
a respective dial needle |38. These dial needle
grooves correspond in number to the transfer
ent
shaft ||4 with a pin ||3 secured to the latch- with the cylinder grooves 5| containing said
’
'||3, as illustrated in Figures 3 and 16. The jacks.
25
means for producing necessary rotation of shaft
Dial needle cams
||4 to operate latch I|3 consists of a lever |20
The dial needle plate |38 is arranged in axial
secured at one end to the shaft and which is spaced relation to the dial camvplate |35 for the
adapted to be operated in> one direction by a reception therebetween of the cam. members for
cam |2| secured to pattern drum 20 and a push actuating the dial needles |33. These cam mem
bar' |22 actuated by the cam. Spring |20' oper
as illustrated more clearly in Figure '7, com
’ ates lever |20 in the opposite direction and yield , bers,
prise a pair of diemetrically
fixedcams
ingly maintains the lever in contact with the |40 arranged intermediate the shaft |31 and the
upper end of push bar |22.
peripheral edge of the dial cam plate and are se
‘ the engagement of a latch trigger ||0 secured to
The head |08 is clamped to the upper end of
the post |01 by a pair of screws l|23 so that as
the head is released by latch || 3, spring ill will
force the post and head together with the mech
anism carried by said head upwardly away from
the cam housing` 50 and needle cylinder 40. In
order that head |08 and the mechanism carried
thereby will be accurately positionedv relative to
the needle cylinder 48 when moved to the lower
most operative position, post |01 is provided with
jacks and are arranged in cooperative
curedto the latter byscrews |4|. The'dial cams
also include a central ilxed cam member |42
which surrounds the shaft |3| and is secured to
the diaLcam plate |35 by screws |43, a pair of
movable stitch cam _members |44 and a pair of
40
movable cast-oil! cam members |45.`
The stitch cam-members |44 are arranged at '
diametrically opposite sides of the shaft |3I be
tween corresponding ends of the ñxed cams |40.l
Each of the stitch cams |44 is provided with an
upwardly extending rod or stud |43 which is 45
journaledin the dial cam plate |33 with the
axes thereof in alignment with the inner rear
edge of a respective path cam |40. The upper
an enlarged tapered'iiange portion |01' which
engages in ‘a corresponding tapered portion |00?
of the opening |00 at the upper end of standard
3; see Figures '1 and 14. Also, the rear end of
head |08 is provided with a pilot rod |24 which is
ends of the studs |45_extend beyond the dial
secured at its upper end to the head and extends plate
and have secured thereto a respective op
downwardly therefrom through a suitable open erating
lever as |40 ocr |43', Idgure 6. ,The for
ing |25 provided in the upper portion of the’
ward
or
free end of each stitch cam'is tapered
standard 3 at the rear thereof as shown in Fig
as at |44! for ensßalnl! the corresponding tapered
ures 14 and 15. The pilot rod |24, like the post forward end |40' of an adjacent path cam |40.
|01, is provided with an enlarged tapered flange The inner verticalledge oi' each ‘stitch cam |44 55
portion |24’ which, when the head |08 is in its is formed concave and extends forwardly from
lowermost operative position, registers in a cor
the axis of the
stud Ill for oon
responding tapered enlarged portion |25’ oi' the ' necting the inneredge Qftherearend ofone
opening |25» 'I'he pilot rod |24 extends som'e dis
tance below the upper end portion of the stand
ard 3 when the head is in its lowermost operative
position and has the front and rear sides thereof
nxed cam with the inner edgeïof the forward
ment during the raising and lowering operation
edges of the cams engage the butts |33' of the
dial needles for retreating said needlœ to their
innermost position.
end of the next succeeding fixed cam when the
stitch cam is in the outermost position. When
the
'stitch cams are in their
position
flattened as at |24", so that head |08 may have
'as
illustrated
byfulllinesinli'igure'htheinner
`a. limited' amount of longitudinal tilting move
thereof without producing a binding action be
tween the pilot rod andthe adjacent portion oi’
the standard 3, but will be held by the. pilot rod
against lateral movement relative to the needle
cylinder.
l 'I'he length of the vertical driveshaft 30 is such
that the upper end of said shaft will remain inY
engagement with the 'gear case |05 during all
vertical positions of the case. ,The upper end por
tion of the shaft is provided with longitudinally
The east-oil’ cams |45 have the forward'ends
thereof arranged adjacent the inner ñxed cam
Y member |42 and lilre- the stitch cam members,
are each provided with an upwardly extending
rod or stud |48 which is journaled in the dial
cam plate |35. These studs |48 extend above
the cam> plate with the upper ends thereof se
cured to a respective operating lever |41. The 75
6
2,187,362
maintained when released by cam |58 in the rear
most yposition by a spring |88 connected with the
posite sides of the fixed cam |42 intermediate ' bracket |88 and rocker arm |55.
In operation, cam arm |58 is normally main
cam. surfaces |42', while the axes of the studs
5.1 |48 are arranged in alignment with the periph- ' tained in a forward position when the push rod
|52 is'in its lowermost position out of engage
eral surface |42" at the forward edge of the re
spective recess |48, as shown in Figure 7. The ment with the cam |58, at which position of the
cam arm' the pin |82 will engage the rearmost
outer longitudinal vertical edges of each cast
_off cam |45 -are convex in formation, and when portion of the cam surface I 88' as illustrated by
the cast-ofi` cams are in their innermost position broken lines in Figure 17 at which position of
within the corresponding recess |48 as illustrated lever |48 the dial stitch cam |44 connected
by broken lines in Figure 7, extend substantially therewith will be maintained in its outermost in
concentric with the peripheral surfaces |42" of operative position as illustrated by broken lines
the'central ilxedcam for permitting the needles in Fig. 7. When the push vbar |52 is` moved up
to remain in an inner or retracted position. The wardly by engagement of cam |58 therewith, the 1|
fixed -cams |48 are each provided with a cam cam arm |58 will be rocked rearwardly thereby
until pin |82 engages the forward flat portion
surface |48 on their inner vertical edge adapt
|83" of cam element |88 as illustrated by full
ed when said cast-off cams are in their outer
“most position to engage the butts of the needles lines in Figures 6 and 17 at which position of
as they pass beyond cams -|45 and produce a the cam arm the dial stitch cam |44 will be 2|
maintained in its innermost operative position
limited inward movement of the needles.
as illustrated by full lines in Figure '7 for re
The stitch cams |44 are automatically oper
ated from respective cam members |58 and |5I, tracting the dial needles the maximum length of
cast-off cams |45 are each arranged adjacent a
segmental recess |48 formed in diametrically op
Figure 26, secured to the pattern drum 28 and
25 suitable push bars |52 slidably mounted in the
hereinbefore mentioned guide members 11 and
an additional guide member |54 secured to the
upper end of the standard 8, as shown in Fig
ures 3 and A13. That is, the push bar |52 oper
30 ated by the pattern drum cam |58 -is operatively
connected with the-stitch cam |44 positioned at
the left hand side of the dial plate |85 as viewed,
their inward movement for stitching.4
When it is desired to transfer stitches carried 21
by the transfer jacks 58 mounted in the needle
cylinder 48 to the dial needles |88, it is necessary
that a latch opener be employed to insure the
open position of the latches of the dial needle
during the transfer operation and we, therefore, 84
.utilize the dial stitch cam |44 actuated by cam
arm |58 for positioning the dial needles in an in- '
in Figures 6 and _7 by means of a rocker arm |55 ' termediate’position'dn cooperative relation with
which, in this instance, is in the form of a bell
crank lever journaled upon a horizontally dis
posed rocker armshaft |58 mounted in the dial
supporting head |88 a short distance from the
v rear end thereof, said shaft being arranged to
extend outwardly from opposite sides of the head
40 to support the several rocker 'arms actuated from
the cams on the pattern drum as will be apparent
from the following description:
One of the arms of the bell crank lever |55
extends rearwardly from the shaft |58 over the
45 push bar |52 to be engaged thereby, while the
other arm of the bell `crank lever is operatively
connected by a push rod |51 to the lower end
of a cam. arm |58 which is disposed in substan
tially a vertical plane intermediate the stitch cam
50 lever |48 and the tubular shaft |8| as indicated
in Figures 2, 3, 6 and 17. The upper end of the
cani arm |58 is pivotally secured by a stud |58
to ' an L-shaped bracket
|88 which has the
shorter leg thereof secured to the bottom of the
The other leg of the bracket ex
tends downw-irdly adjacent the inner face of
55 gear case |85
a latch opener presently described. In order to
cause the dial stitch cam |44 to function in this 8
manner, the push rod |51 is composed of two
portions joined together by a turnbuckle |81
which is adapted to vary the'length of the rod
| 51 and thereby vary -the relation of the cam
|88 with pin |82. That is, when push rod |51 4
is adjusted to its maximum length, the cam sur
face |88" will engage the pin |82 when rocker
arm |55vis actuated by cam |58 for producing a
maximum throw of the lever |48 to bring the
dial stitch cam | 44 into its innermost operative 4
position. It will now be understood that by
lengthening rod |51 by the manipulation of the
turnbuckle |81, pin I 82 will be engaged by the
cam surface |88' only which will produce a less
degree of movement of lever, |48 when the arm |
|55'is actuated by the cam |58 than formerly
with the result that the dial stitch cam |44 will
be moved to an intermediate position for ef
fecting only a partial 'inward movement of the
dial needles whereby the eyes of the needles will l
be brought into operative alignment with the
the cam arm |58 for maintaining said arm _ latch opener, presently described.
The dial switch cam connected with lever |48’
against inward lateral movement during the cam
is operatively connected with the pattern drum
action thereof upon the stitch cam lever |48.
The stitch cam lever |48 is provided with a pin cam |5| through the medium of a push bar |82 q
60
and a rock arm | 55, not shown, but which are
|82 at the outer end thereof which extends up'
wardly into the path of movement of a cam ele
ment or flange |88 provided on the lower end of
cam arm |58. .The cam element |88 comprises
65
a tapered portion |88' _which extends forwardly
from the rear‘vertical edge of the arm |58 at an
angle to the outer face of the arm and a straight
portion |88" positioned at the forward side of
the arm in parallel relation with the outer face
thereof. The arm |48 is yieldingly urged in the
direction of the cam arm |58 for maintaining pin
. |82 >in engagement with the cam surface |88.by
means of a coil spring |85„,mounted upon the
lower or hub portion ofthe arm |48, as shown
75, in Figure 17, and cam arm- |58 vis yieldingly
mounted at the opposite side of the bracket |88
from that of the nrst mentioned arm |55 and
push bar |52. This latter rocker arm is opera
tively connected with the lever |48' by a push
rod |89, as illustrated in Figure 6. The cam |5|.,
as illustrated in Figure 26, is provided vwith re
duced portions |5|' in the outer face thereof for
producing a limited movement of the lever |48'
and, therefore, of the cam | 44 connected there
with so that said cam will bemaintained in an „
intermediate position for producing a cardigan
stitch.
'
,
f
The cast-off cams |45 are operated by cams |18
and |1| respectively mounted upon the pattern i
7
9,187,862
drum 26 through the medium of push bars |52
mounted in the guides 11, and |54, similar to
in spaced parallel relation to each other. As
shown in Figure 6, the fingers |80 of one set
the push bars _ |52, for the dial stitch cams. The ‘ extend in the opposite direction from their pivot
upper ends of these bars engage corresponding
rocker arms |55 also mounted upon the shaft
_ |56, said rocker arms being connected with a cor
lresponding dial cast-off lever |41 by respective
|84 connected with their respective fingers at
push rods |13 and |14. Thecam |10 which op
the forward side of the pivots |8| so that cor
crates one of the cast-olf cams |45 may, as
responding iingers of each set will operate in
10 shown, be provided with reduced portions |10' in
termediate the ends thereof whereby said. cast
oif cam will have a limited movement for mov
ing the dial needles to an intermediate position
for producing a cardigan stitch.
Latch opener
The hereinbefore mentioned latch opener com
prises a relatively thin plate member |15 posi
/
One of the sets of fingers, as those positioned '
at the right hand side of Figure 6, are each
connected with a respective pushrod |86 which
is _also »connected with a corresponding rocker
arm |55 mounted upon the shaft |56 to be ac
tuated by corresponding cams |81, |88 and |89,
Figure 26, mounted upon the pattern drum 20
plate |35 intermediate the adjacent dial stitch
tlëough the medium of corresponding push bars
Hgures 6 and 9. The latch platch |15 is pivot
» ally secured to the dial cam plate by a shoul
(il)
unison..v The inner ends of the fingers are pro 10
vided with >a »respective eyelet or 'opening |85
for the reception of the yarn as Y therethrough.
tioned in a recess at the front side of the dial _cam
cam |44 and dial cast-olf cam |45 as shown in
f
|8| to those of4 the other'set and the -ñngers of
one set are connected with corresponding fingers
of the other set by means of respective tie rods
I
.
,
.
20
n
Yarn clamps
Associated with each set of guide fingers |80
dered screw |16 and -extends forwardly from
the pivot |16 as shown in Figure 9 with the lower ' is a set of yarn clamp members |90. These sets
edge Vthereof adapted to travel in _a circular. of» clamps are mounted upon the dial cam plate
|35 at diametrically opposite sides thereof and
groove |11 provided in the dial» plate |38 adja
in
close proximity to the corresponding set of
cent the peripheral edge thereof. 'I'he latch plate
is provided with a rearwardly extending tapered guide fingers |80. The sets of yarn clamps are
constructed alike and each set comprises three
heel portion |15' adapted to extend into the' segmental
spring plates |90 which'are secured
eyes of the needles beneath the latch. The _lower in
spaced relation at their rear ends to each other
edge of the latch plate extends inwardly and in
by means of screws |9| and spacing blocks or
creases in width toward the rear end thereof as plates
|92. The peripheral edge of the dial cam
shown in Figures 10 and 11 to form a cam sur- ‘ ‘
face |15"/adapted to be engaged by the latches plate |35 is recessed for the reception of the
clamps |90 and a disk`|93 of substantially the
as the diallneedles are rotated forwardly to ro
tate said latches about their respective pivots same diameter as said cam plate is secured' to
from the closed position to the open position. the lower face thereof to close the lower side of
The latch opener |15 is yieldingly maintained said recess and form a support for the clamps
in its lowermost operative >position by a spring |90. ' The clamp plates |90 extend forwardly
the direction oi’ rotation of the dial plate 40
|18 attached, as shown 'in Figure 9, to cam plate in
|36 from a position at the rear of the corre
|35 and` which engages an upwardly extending
sponding set of yarn guide fingers |80 to a posi
shoulder |19 on the latch plate. The latch plate tion in advance of said ñngers as shown in Fig
is normally maintained in a raised inoperative ure 12 with their free ends provided with an
position against the action of spring |18 by an enlarged portion |90' adapted to receive the
arm |41' secured to the operating lever |41 of , yarn Y therebetween.
„
the adjacent cast-oil.’ cam |45 as shownl in Fig
Positioned adjacent each set'of clamp mem
ure 6, the arm |41' being adapted to engage bers in a plane intermediate the ends 'thereof
shoulder |19 when the lever |41 is in the position is a throat~ plate _|94 carried by a bracket |95
for maintaining the cast-off cam connected secured to the dial cam plate |35. Each throatl
therewith in the out‘er- operative position.
plate~ |94 -is provided with a guide notch |94'
It will thus be seen that when lever |41 is through which the yarn passes during the knit
actuated by cam |1| to move the cast-olf cam
ting operation from the guide ñnger i 80 which
|45 connected >therewith to the inoperative po
has been moved to the operative position. Each
sition, the arm |41' will be moved in` a direction throat plate. |94 is an arcuate member arranged
55
away from the shoulder |19 and permit the latch
the inner face thereof in the plane of the
plate |15 to be'movedgby spring |18 to its lower-- with
peripheral surface of the needle cylinder 48 as
most operative position.
l shown in Figure 12 and supports the' upper ends '
Yarn guide fingers
of the cylinder. needles -when said needles are
raised to engage the yarn held in the operative 60
'I'he dial cam plate |35 is., provided with two ' position.
By referring to Figures 6 and 12, it
sets of yarn guide fingers arranged at substan
tially diametrically opposite sides of'the shaft will be noted that each of the clamp plates |90
|3| from each other.I 'I'he yarn guide fingers of is provided with a recess |96 which, when th'e
guide fingers are in their innermost inoperative
each set are constructed and operated alike so
that the description of one setwill answer for
both sets. Each'set of yarn guide ñngers com
prises, in this instance, three fingers |80 which
are pivotally mounted upon a stud |8| secured
'iii to'a bracket |82 which, in turn, is secured to
the gear case |05 as shown in Figures 2 and 3.
The fingers |80 of each set are each provided.
with a bearing sleeve I8,3-._and these sleeves are
>arranged in telescopic relation with -each other
upon the stud |8| for maintaining the iingers
positions, provide a passage through which the
yarn guided by said fingers may pass beneath
the clamping members.
Yarn cut-o1? mechanism y
Associated with each
of clamping members 70
and guide fingers is a yarncut-off mechanism
located adjacent the rear ends of the clamping '
members.4 This mechanism, as shown more par
ticularly in Figures 6, 21 and 22, comprises a
shear blade carrier arm |98 mounted in Va’slot 75
8.
2,137,362
|99 provided in the upper' face of the dial cam
plate |35. 'I'his arm |98 is pivotally connected
intermediate its ends to the dialï plate by a pin
200. To the end of the arm adjacent the corre
sponding set of clamp members is secured a
shear blade 20| which is positioned in close prox
imity to a second shear blade 202 mounted in
the slot |99 and secured to the 4adjacent portion
_of the dial cam plate as by screws 208, Figure 22.
10 ’I'he edge of the shear blade 202 adjacent the
clamps |80 is provided with an upwardly facing
cutting edge 202', while the lower edge of the
shear blade 20| is provided with a downwardly
facing cutting edge 20|' adapted to cooperate
15 with the cutting edge 202' for severing the yarn.
The blade 20| is normally maintained in its low
ermost position by a spring 205 secured by screws
206 to the upper face of the dial cam plate |35
adjacent the inner end of the arm |98. The
20 forward end of arm |98 and the shear blades car
-ried thereby are raised against the action of
spring 205 by means of an operating plate 201
which, as shown, in Figures 2 and 6, is provided
with a central opening for receiving the bearing
sleeve |32 therethrough and is rotatably mount
ed upon the dial cam plate |35.
,
The operating plate 201 is provided with a lat
eraly projecting arm 208 at one side thereof to
which is connected a push rod 209 which extends
30 rearwardly from the arm 208 and is operatively
secured to the upper end thereof a stop arm 2|9
which, as illustrated more clearly in Figure 5, is
adapted to be engaged by a detent or pawl 220
pivotally secured as at 22| to the gear case. lThe
detent 220 is connected to one end of a push rod
222, which has the other end thereof plvotally
connected as at 223, Figure 3, to one arm |55'
of the bell crank lever |55 which is operatively
connected with the cam arm |58 for operat
ing one of the dial stitch cams |44. A spring 10
224 connected with the bracket |86 and rod
222 normally urges the detent away from the
stop arm 2|8 to the position illustrated by broken
lines in Figure 5, while the detent is positively
moved into the path of movement of the stop arm 15
2|! by the action of cam |50 for maintaining the
shaft and the mechanism connected thereto
against rotary movement during the rotation of
the shaft |3| and needle cylinder 48.
The lower end of shaft 2|8 extends a short
distance below the lower end of shaft ISI and
has ñxedly secured thereto a bearing disk 225
which is of less diameter than the interior of
the adjacent portion of the needle cylinder 48.
'I'he bearing disk 225 carries a plurality of, in 25
this instance l0, feeding. disks 226, each of which
is secured to one end of a respective spindle 221
journaled in disk 225. Each of the spindles 221
extends inwardly from the peripheral edge of the
bearing plate at a downwardly inclined angle 30
connected with a rock arm |55 mounted upon relative to the axis of the shaft 2|8 and also
the shaft |56 which is adapted to be actuated in tangential relation to said shaft, as illustrated
~ through the medium of a push bar |52 by either in Figures 2 and 23. The peripheral edge of each
one of two cams 2|0 mounted upon the pattern. feed disk 226 is corrugated or ,provided with a
series of teeth 228 adapted to engage the fabric
35 drum 20. The operating plate 201 is also pro
formed by the cylinder and dial needles as said
vided with a pair of laterally projecting diametri
fabric passes downwardly through the interior
cally disposed members 2| | which normally ex
tend outwardly at the rear of the respective blade of the needle cylinder. The`upper end ofthe i'n
terior of the needle cylinder is beveled outwardly
carrying arm |98 and when the plate 201 is ro
tated by the action of a cam 2|0 in a clockwise as at 230, Figures 2 and '23, and is preferably 40
direction as viewed in Flgure`6, these projections provided with a ring member 23| composed of
engage a cam surface 2|2 provided at the rear
end of each arm |98 for pressing said end of the
arm downwardly and raising the opposite end
of the arm and the shear blade carried thereby.
'I'he operating plate is yieldlngly maintained in
steel and which is seated in a suitable recess pro
vided in the tapered portion of the needle cyl- A
inder. 'I'he interior surface of the ring 23| is
tapered so as to cooperate with said tapered por, 45
tion 230 to form a smooth continuous surface
the inoperative position by a spring as |56 when ' throughout the axial length of said .tapered por
the pattern _drum cams 2|0 are out of engage
tion.
t
ment with the corresponding push bar |52. It
will be noted by referring to Figure 6 that the
shear operating plate 201 is provided with a pair
' of diametrically disposed apertures 2|5 through
which the studs |46 extend, said apertures being
of sufficient size and contour to readily permit
the necessary ’swinging movement of the plate
relative to the studs to effectthe operation of
the shear blade carryingl arms |98.
`
Each ofthe shear blade4 carrying arms |98 ,is
also provided with an upwardly extending bore
24|8 adjacent the forward end thereof. In'v the
bore 2 |3 is mounted a spring pressed plunger 2 I4which is adapted to engage the rear end of the
uppermost clamping blade |90 and press Vthe
same and the remaining clamping blades into>
engagement with each other and with the disk
|93 for clamping the yarn Y therebetween, as
shown in Figure 22.
Fabric feed mechanism
The tangential relation of the spindles 221 to
the axis of the supporting shaft 2|8 is such that 50
the peripheral portion of each disk 226, lying in
the horizontal axial plane of the spindle and p0
sitioned at the rear side of the spindle, will be
spaced a greater distance from said shaft axis
than the diametrically opposite side of the disk. 55
It will thus be seen that the axis of rotation of
each feed disk 226 is arranged both at an oblique
angle with and tangentially to the axisy of rota
tion of the'cylinder and dial needles and. there
fore, to the axis o_f movement of the knitted fab 60
ric. It therefore follows that the rear peripheral
edge portion of each feed disk which is‘located
between the horizontal plane of the axis of ro
tation of the disk and the extreme lowe'r side
thereof will lie nearest to the fabric and, there 65
fore, will be engaged by said fabric as the fabric
is rotated in an anti-clockwise direction as indi
cated by arrow X in Figurel 23. As the fabric
thus engages each disk, said disk will be rotated
70 As hereinbefore stated, the dial plate operating , in an anti-clockwise direction by the fabric so 70
that the fabric engaged by the peripheral edge
shaft |3| is a tubular member and it has jour
naled therein a supporting shaft 2|8 as shown in of the disk will be carried axially downwardly
by the disk as said disk is rotated. It will thus
Figure 2. This shaft 2| 8 extends upwardly be
yond the upper end of the shaft |3| and through be seen that the rotation of the, fabric pro
75 a suitable aperture in the >gear case |05 and has duced by the needles actuates the feeding device 75
9,137,362
, -
' 9
n
for automatically effecting the axial movement vcured. thereto to a sufficient distance above the
needle cylinder to permit the ready positioning of
of the fabric in a direction away from the ad
jacent cooperating ends of the nedles. It will
' also be understood that the speed at which the-
a transfer ring as R, Figure 26, having the par- ,
feed disks feed the, fabric axially depends upon
the diameter of the~ disk and also upon the angu
lar relation thereof with the axis of movement of
tially knitted article mounted thereon over thecylinder needles 52 and transfer jacks 53 asso
ciated with the needle cylinder 48.
To explain more explicitly, by referring to
the fabric,
Figure 26, wherein the vertical lines represent
-
A stop pin 233 secured to head |06 is adapted
10 to be engaged by arms |55 for limiting the piv
otal movement thereof produced by springs |66
when head |03 is in the raised position.
In the modified form of feed mechanism illus
trated in Figures 29 and 30, the shaft 2| 8 has
secured to the lower end thereof in any suitable
manner, a hub 235 which has secured to the
upper face thereof a spring member 236 which
is provided with a plurality oi' arms 231, one for
each spindle 221. These arms 231- are arranged
tangentially to the shaft 2|0 in the same man
ner in which the spindles 221 are arranged in the
structure shown in Figure 23. 'I'he outer end
of each arm 231 is secured tothe outer end por
tion of a ' corresponding bearing member 233
which, as shown in Figure 30, extends inwardly
toward the shaft 2 I 3 in tangential relation there
to beneath the corresponding arm 231 for rotat
ably supporting the shaft 221 of a respective feed
disk 226. It will be understood that there are
as many bearing members 238 as there are arms
231` and disks 226 and, as illustrated in Figure 30,
.these bearing members extend downwardly from
the outer ends thereof at an angle to the axis of
the shaft 2|0 and have the inner ends thereof
terminating in spaced relation to the'hub 236
and in close proximity to -a supporting plate 239
' secured to the lower end of the hub'23lì.> Each
shaft 221 extends inwardly a short distance be
yond the inner end of the corresponding bearing
member 233 and has secured thereto a collar or
bearing element 240.
_
4
It will now be understood that the feed disks
226 when mounted as shown in Figures 29 and
30, function in the same manner as when mount
ed in the manner shown in Figures 2 and 23 for
`taking up the fabric during the knitting oper
ation. However, in the modified form, the feed
disks have vertical movement-independently of
each other due to the resiliency of the arms 231
which enable each disk to pass over knots or
other unusual deformities or obstructions inci
dent to the forming of the fabric. In‘operation,
when a drive disk 226 is -thus elevated, it will be
observed that the corresponding bearing mem
ber will pivot about the -lower end thereof where
said end engages the plate 239 as an axis against
the action of the corresponding arm 231. t
’
corresponding teeth of ratchet wheel I5, as tooth ’
T-l of said wheel is engaged `and brought for 10
ward by pawl i4. the high point of cam |2| which
produces sufficient rocking movement of latch
||3 to release head |06 -ls moved out of engage
ment with the corresponding push bars, so that
upon themachine’s coming to the at rest posi 15
tion, head |06 will be in the raised position
while> latch' l I3 will be in the raised vertical posi
tion with the head of the latch in the path of
movement of latch plate lltì.A Also, cylinder
cast-off and stitch cams 58 and 59 will have been 20
moved by the action of springs 19 upon rack
members 69 to their inoperative positions out
ofV engagement with the butts of the cylinder
needles, as shown in Figure 25. It will also be
noted by referring to Figure 26, thatcam 93 for 25
operating the jack ring'09 is so related to the
latch cam |2| that prior to the engagement of
the latch cam with the corresponding push bar,
said `lack cam 93 will pass out of engagement with
its push bar 94 and thereby release the rocker 30
arm 06 associated therewith and permit spring
|0| ,to move push rod 90 forwardly and thereby
effect the upward axial movement of the Jack
ring and thus level the cylinder needles and
transferjjacks in the manner hereinbefore de
scribed and. as shown in Figure 25.
'
It will now be readily understood that inas
much as the cylinder needles and transfer jacks
are maintainedat a uniform predetermined level.
the stitches carried by the quills as 1' of transfer
ring R. may be readily transferred to the needles
and jacks engaged by said quills by merely pass
ing the fabric F from a position above the ring.
as indicated in Figure 27, downwardly through
the ring and into the >interior of the needle cyl
inder 48, as indicated in Figure 28, and in doing
so, the stitches carried by the quills will readily
pass downwardly therefrom onto the respective
cylinder needles and transfer jacks. l The trans
fer ring Ft is then removed from the needles and
jacks and the dialplate and needles are brought
into nearly cooperative relation with the cylinder
needles and transfer jacks by the operator manu
ally moving the dial supporting head |06 down
wardly against the action-of the spring ||0 until 55
the latch ||3 again engages the latch plate H0.
The machineis now set into operation `by con- ‘
Operation
Before starting the machine 'disclosed here
with, it is necessary that the dial plate |36 and
necting drive shaft 6 with any suitable source
of power not shown. `'Ji‘he operation of shaft E
ñrst produces a few revolutions of the-needle
the mechanism associated therewith, 'including
which time'tooth T-2 of wheel I5 is operatively '
cylinder 48 and dial needle plate |36, during
the feed mechanism, be moved toa position re
engaged by pawl il, and cam |2|» is thereby
mote from .the needle cylinder so as to` permit a. „ moved out of engagement with its push bar
partially formed article such as the foot and whereupon spring |20' causes latch I|3 to move 65
downwardly while in holding engagement with
ankle portion of a sock or stocking to be trans
ferred to the needles and transfer jacks carried
. by needle cylinder I0.
The cam |2| is so con
structed and mounted upon the pattern 'drum 20
relative to the - remaining . cams that as the
machine completes the knitting of an article, said
vcam will operate latch lever |20 for moving the
latch ||3 upwardly to release head |06. As the
.head |06 is thus released, spring ||0 will auto
matically raise said head and the mechanism se
plate ||6 and securely maintaining head `|06
and the dial Vneedles in their lowermost operative
positions. Next, pawl i4 is caused to operatively
engage tooth T--3 during which intermittent
movement of drum 20 the forward reduced por
tions. |10" and |1|" of the-dial‘cast-off cams |10
and |1| engage their respective push bars to
effect' a partial upward movement thereof-and
thus move the corresponding dial cast-oir cams
10
2,137,362
Ill to an intermediate position to produce sum
cient outward movement of the dial needles |38
- to cause the forward ends thereof to pass through
the eyes 53' of aligned transfer jacks 53 carried
by the needle cylinder. 'I'he engagement of pawl
I4 with tooth T-4 causes Jack cam 03 to next
engage the corresponding push bar 94 and pro
duce downward movement of jack ring 09 and
thereby return the transfer jacks 53 and needle
10 jacks |00 to their normal inoperative position,
thereby releasing the cylinder needles and at the
same time transferring the stitches carried by
the transfer jacks to the corresponding dial nee
dies at a position -ahead of the needle latches.
15
The continued operation of the machine next
brings the cylinderstitch cams 18 into engage
ment with their respective push bars which op
erate arms 12 to eifect the return of the cylinder
cast-on cams il and cylinder stitch 'cams l! to
20 their operative positions relative to the cam track
l1 and produce operation of the cylinder needles
to eñect knitting. Simultaneously with the en~-
drum 20 makes one complete revolution and as
said drum approaches the end of a revolution the
guide cam associated with the particular strand
of yarn being used is arranged to engage the
corresponding push bar and effect the return of
the corresponding guide lingers |80 to the inop
erative position to bring the yarn associated
therewith out of cooperative relation with the
dial and cylinder needles and at the same time
cause said yarn to travel between the correspond 10
ing clamping members. As said yarn is thus
engaged by the clamping members, a shear cam
2 I0 mounted upon drum 20 engages the push barl
associated with the shear blades and effects the
operation of said blades to sever the yarn being 15
used.
Next, the cylinder stitch cams 1l, the dial cast
oiI cams |10 and |1i, and the dial stitch cams
|50 and IBI will be moved out of engagement with
their respective push bars and thereby cause the 20
cam members associated therewith to be moved
to their respective inoperative positions so that
corresponding push bars, the high portions of the
the cylinder needles positioned with the butts
thereof in that portion of the cam track 51 adja
dial cast-oi! cams |10 and |1| effect the return
of the dial cast-oir cams to their full operative
-position. while the dial stitch cams |50 and III
cent the cast-off cams 58 and stitch cams 59 will
be released by said cam members. Also, as the
dial stitch cams i“ and cast-on cams |46 are
effect a movement of the dial stitch cams I“
moved to their _innermost position with the outer
ends of the dial needles maintained within the
~ gagement of the cylinder stitch cams with the
to their innermost operative position so that the
dial needles III will then function in connection
with the cylinder needles for producing an article
with a rib stitch.
_
'
.
It will be noted by referring to Figure 26 that
just prior to the engagement of the cylinder stitch
cams 10 with their respective push bars, one of
peripheral edge of the~dial lplate |36, upon the
next intermittent movement of the pattern drum,
the Ajack cam 0I moves out of engagement with
the push bar associated therewith so ‘that the
jack ring is moved to its uppermost position for
leveling the Jacks and cylinder needles and at the
the yarn guide finger cams as |80 moves out of
same time latch cam I 2| engages the push bar
engagement with its corresponding push bar and
thereby releases the corresponding rock arm |55
and permits the spring .|55 to move the guide
lingers |80 associated therewith to their outer
most operative position for bringing the yarn Y
carried thereby into operative relation with the
dial and cylinder needles.
connected therewith for eilectinga limited move
In case it is desired to shift from one yarn
to another of a diiferent color after a predeter
mined portion of the fabric has been knitted by
the yarn nrst used, the yarn guide cam |80 may
be so constructed as to again engage the push
bar associated therewith and another yarn guide
cam as |00 be terminated so as to release its
corresponding push bar and thereby eiIect the
return of the ilrst pair oi guide fingers |00 from
the operative to the inoperative position and
cause a second pair of guide ilngers |80 associated
with the respective cam |00 to move to the opera
tive position. At about the same time the second
guide fingers are moved to the operative position.
a shear cam 2I0 mounted on drum 20 e
the push bar associated'with the shear blades
and severs the first yarn úsed after a fresh por
tion of the yarn has been drawn by the knitting
needles between the corresponding clamping
blades |80 so that the end of the severed yarn
will be held thereby in position to be again moved
to the outer operative position relative to the
dial and cylinder needles by the outward move
ment of the guide fingers associated therewith.
Ifacardiganstitchisto-beusedthedial
stitch and cast-oi! cams lli and |10 may, as
ment of said bar to move the latch upwardly in a
direction away from the normal position of the
latch plate H0 butI not sufficient to cause the 40
swinging of the latch away from said latch plate.
The next intermittent movement of the pattern
drum causes the high point of cam | 2| to effect
the momentary engagement of the trigger ill
with the pin I I9 to release the head |00 and per 45
mit said head to be moved by spring ||0 to the
uppermost inoperative position.
The machine
may be then stopped by any suitable automatic
mechanism associated with the source of power
or the drive means for said machine may be
manually controlled to eifect the stopping thereof.
The cycle of operation just described may be
repeated as often as desired, and although we
have shown and particularly described the pre
ferred embodiment of our invention, we do not 55
'wish to be limited to the exact construction shown
as various changes in the form, relation and size
of the parts thereof may readily âbe made without
departing from the spirit of the invention as set
forth in the appended claims.
We claim:
1. In a circular knitting machine, means in
cluding a single cam track for advancing and re
tracting a set of needles to eñect knitting. a set
of needle jacks and means for producing rela 65
tive movement of the needles and jacks toward
each other to bring the Jacks into engagement
with the needles for positioning and maintaining
ilustrated in Figure 26, be provided with reduced
portions lli’ and |10' respectively, for producing
said needles at a uniform predetermined level for
transfer.
70
2. In a knitting machine, a cam track, cam
the same, in a manner which will be readily
means associated with said track for advancing
understood by those skilled in the art.
and retractinga set of needles to eifect knitting, l
means for rendering said .cam means ineffective,
' `
.
It will now _be observed that for each article
knit upon the machine disclosed herewith. the yand'separate vmeans engageable‘with the set of 75
2,137,362
needles for maintaining said needles at a prede
termined uniform position whereby a transfer
ring may simultaneously engage all of the needles
of said set for transferring stitches carried there
by to the needles.
`_
l
3. In a knitting machine having a set of nee
dles and a set of transfer jacks mounted in co--
operative relation with the needles, means in
cluding cams for advancing and retracting the
10 needles to effect knitting, means for rendering
said cams ineffective, and separate means engage
able with the needles and jacks for maintaining
the forward ends of said needles and jacks at a
predetermined uniform position whereby a trans
fer ring may simultaneously engage all of the
needles and jacks of said sets for transferring
stitches carried thereby to the needles and jacks.
4. In a'knitting machine, a circular cam car
rier having means including c_am members for
20 advancing and retracting a set of needles to effect
stitching, means for moving the cam members to
an inoperative position out of engagement with
the needles, and separate means movable into en
gagement with the needles for leveling said nee
25 dies and maintaining them in said level position
against longitudinal movement for transfer.
5. In aknitting machine, a circular cam car
rier having a single cam track for the needle
butts, movable cam members associated with the
di) cam track for advancing and retracting the nee
dies to eiîect stitching, means for moving the
cam members to an inoperative position out of
fer and needle jacks to bring the transfer of
jacks and needles to a predetermined uniform
level for transfer.
.
9. InA a knitting machine, the combination of
a dial plate and a cylinder provided with
needles, means for actuating said needle, means
for moving the dial plate `and needles carried
thereby vertically away from the cylinder to per
mit transfer of fabric to the cylinder needles,
means including a latch for holding the dial plate
in its lowermost position with the needles thereof
in operative relation with the cylinder needles,
and cam means for automatically operating the
latch to release the dial plate.
10. In a knitting machine, the combination of 15
a dial plate and a cylinder provided with
needles, means for actuating said needles, means
including a spring for moving the dial plate and
needles carried thereby vertically away from the
cylinder to permit transfer of fabric to the 20
cylinder needles, means including a latch for
holding the dial plate in its lowermost position
against the action of the spring with the’needles
thereof in operative relation with the cylinder
needles, and cam means for automatically op
erating the latch to release the dial plate.
1l. In a knitting machine, the combination of
_a cylinder provided with needles, means includ
ing a single cam track for the needle butts and a
movable cam member associated with the cam
track for advancing and retracting the needles
to eifect stitching, means for moving the cam
operative engagement with the needle butts, and
member to an inoperative position for releasing
separate means movable into engagement with the needles, transfer jacks mounted on the
cylinder in predetermined relation with the
35 the needles for leveling said needles and main
taining them ln the level position against longi- ' needles, a set of needle jacks mounted on the
tudinal movement for transfer while the needle cylinder beneath the cylinder needles, a jack
butts are engaged with said track.
,
-ring mounted on the cylinder for movement
axially thereof and having a single -track sup
6. In a knitting machine having a set of knit
ting needles and a set of transfer jacks mounted portably engaged by the butts of the transfer 40
and needle jacks, and means for producing said
in predetermined relation intermediate the nee
dles, means including a single cam track and a movement of the jack ring axially of the cylinder
movable cam member associated with said track for levelling the needles and transfer jacks and
for advancing and retracting the needles to effect
maintaining them in the leveled position against
45 stitching, means for moving the cam member to longitudinal movement for transfer while the 45
an inoperative position for releasing the needles, ` needle butts are engaged with said cam track.
and means operatively engageable with the jacks
and -needles for bringing the same into a prede
termined level position and maintaining said
50 jacks and needles' against relative longitudinal
movement for transfer.
f
7. In a knitting machine having a set of knit
ting needles and a set of transfer jacks mounted
in predetermined relation intermediate the vnee
12. A circular knitting machine, comprising in
combination, a needle cylinder, needles longi
tudinally reciprocable in said cylinder, cam
means for producing said reciprocation of the 50
needles, needle jacks mounted in the cylinder
beneath the needles and longitudinally recipro
cable with respect to said cylinder and needles, -
means for simultaneously elevating the needle
55 dles, means for actuatlngsaid jacks to bring them jacks for positioning and maintaining the needles 55
into cooperative relation with the needles for at a uniform level for transfer including a .
transfer comprising a carrier member having a ì normally stationary jack ring provided with a
single track for 4the jack butts, and means for uniform track means having operative engage
ment with the needle -jacks, means for elevating
actuating the carrier member to effect longitu
the Jack ring with respect to the cylinder and 60
dinal movement of the jacks.`
'
8. In a knitting machine, the combination of said cam means, and separate means for pro
a cylinder provided with needles, means for ducing relative rotary movement of the cylinder
actuating said needles, transfer jacks mounted and the needlesvcarried thereby and the cam
on the cylinder in predetermined relation with means.
the needles, a set of needle jacks mounted on
the cylinder beneath the cylinder needles, and
means for simultaneously elevating the trans
` '
CALEB
SMITH.
JUEL L.V PETERSON.
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