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Dec; 10,1946.
2,412,267
H. H. HOLMES ET AL
CIRCULAR KNITTING MACHINE
Filed Jan. 5, 1944
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Attorney. /
Dec. 10, 1946.'
H. H. HOLMES ETAL
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‘2,412,267
CIRCULAR KNITTING MACHINE
Filed Jan. 3, 1944
s Sheets-Sheet 2
Dec- 10, 1946-
2,412,267
H. H. HOLMES ET AL
CIRCULAR KNITTING MACHINE
Filed Jan. 3, "1944
'
5 sheets-sheet s
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Patented Dec. 10, 1946
2,412,267
UNITED STATES PATENT OFFICE
2,412,267
CIRCULAR KNITTING BIACHINE
Henry Harold Holmes and Alfred Percy Saunders,
Leicester, England, assignors to Wildt and
Company Limited, Leicester, England, a British
company
Application January 3, 1944, Serial No. 516,790
In Great Britain January 8, 1943'
18 Claims. (CI. 66-14)
2
1
This invention relates to ciroular knitting ma-
chines and concerns those of the characteristic
type including double axially opposed needle cyl
inders'and especially such as are furnished with
double~ended needles operable by means of slid
ers, with which, and the purposes for which they
are employed, those familiar with the art are
now well acquainted.
.
' ‘
1y employed in the production of broad rib or
purl fabrics.
A particular illustrative embodiment of the
invention as applied to a circular knitting ma
chine of the superimposed rotary needle cylin
der type, in combination with patterning mecha
nism of the general form described in the speci
?cation of United States Letters Patent Nor‘
The present invention is applicable primarily
to machines of the characteristic type concerned
2,065,469 will now be described, by way‘of exam;
ple, with reference to the accompanying draw-1
which are additionally equipped with instru
ings, wherein,
ments adapted to co-operate with the needles
Figure 1 is a vertical sectional view of so much
of the said machine as is necessary to illustrate
in stitch or loop formation or variations there
of and which, by reason of their close proximity
_
>
the application of the invention thereto,
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(
by needles upon which rib or purl stitches are
produced. Such instruments may, for example,
Figure 2 is a diagrammatic plan view show
ing the needle circle and the lay-out both of the
lap or wrap thread guides and the holding-down
bits or web holders employed to facilitate knit
ting by needles in the top cylinder of the ma
consist of individually operable thread guides for
chine,
to the needles, restrict the space available with
in the cylinders for the provision of verges or
knocking-over bits designed to facilitate knitting
-
Wrap stitch or loop effects on independent nee
dles singly (single wrap effects) or on a plu
Figure 3 is a plan view of the plate or disc
?tted with cam sections for controlling the said
holding-down bits or web holders,
Figure 4 is a transverse sectional view of the
rality of adjoining needles (multi-wrap effects).
same taken on the line IV--IV in Figure 3, -
feeding patterning or ornamental threads to ap
propriate needles as in the production of lap or
Other instruments may consist of stitch or loop
Figure 5 is an underside view of the cam plate
transferring elements, e. g. pelerine instruments
or disc as seen in the direction of the arrow A
in Figure 1,
for producing open or lace effects, and, in some
Figure 6 is a further transverse sectional view
cases, instruments of both kinds may be fur
nished in the same machine for producing com 30 taken on the line VI—VI of Figure 5,
binations of such effects.
I The object of the present invention is to pro
vide improved means for facilitating knitting by
the needles required to produce rib or purl stitches
having regard to the restricted space available
by reason of the presence of instruments such as
those aforesaid either alone or in combination
with others.
The point or points at which the instruments
Figure '7 is a detail plan view illustrating con
nections, seen in the direction of the arrowB
in Figure l, for rendering the movable cam secg
tion inoperative during reciprocatory knitting as
will be hereinafter described,
Figure 8 is a diagrammatic representation
drawn to an enlarged scale of portions of the
opposing ends of the needle cyli'nders-showing a
few of the needles, the fabric and the holding
40 down bits or web holders as they appear during
the production of rib or purl stitches,
'
ally removed from the knitting location, or is or
Figure 9 is ‘an enlarged detail perspective view
are between locations in a multi-feed machine,
depicting a holding-down bit or web holder in
and therefore it is essential to construct and ar
its projected position to facilitate knitting by the
range means to facilitate knitting as aforesaid,
suchwise as to be capable of co-operating with 45 adjacent rib needle, and
Figure 10 is a somewhat similar perspective
the appropriate needles at the knitting location
View showing the said bit or web holder in its
or locations but not otherwise.
fully retracted, i. e. inoperative, position‘.
Accordingly the present invention has in view
the provision of means of a simple and compact
Like parts are designated by similar reference
form adapted for location in proximity to the 50 characters throughout the drawings.
' ‘ '
hooks of the knitting needles for holding down
In Figure 1, the bottom or plain needle cyl
the old loops or stitches formed by the ap
inder and the superimposed top or rib needle
propriate needles while the same needles draw
cylinder are designated by the reference numerals
the yarn for and knock over the succeeding new
I and 2 respectively. One of the double-ended
loops or stitches, such means being advantageous £55 needles is indicated at 3 and, as will be seen, this
function for their intended purpose is or are usu
2,412,267
3
.
.
..
4
is operable by means of sliders of conventional
' form such as that shown at 4.
,
In the drawings .
the numeral 5 indicates the customary bottom
sinkers which are arranged in a so~called sinker
brass 6 associated with the cylinder I}. r
pillars or posts'such as 22 ?xed in the top plate
Ill. The cross arms are shown more clearly in
Figure '7. The cam plate I8 is ?xed with the
projecting portion g1 of the groove or track'g at
the. appropriate position in relation to the top
knitting cam system, that is to say at the loca
tion KL (Figure 2). Thus when the dial l3 re-V
The machine, in this particular example, is
equipped with vertical lap or wrap striping mech
' volves the bits or web holders l4 therein are, by
anism wherein blade-like thread guides or feed-1
reason of the travel of their butts Ma in the cam’
ers ‘I with angular thread guiding’ ends’ 1a are
arranged substantially axially of the needle cyl-i 10 groove or track moved outwards seriatirn at the
knitting location KL so that the tip of each'is
inders l and 2 in a cylindrical bed 8 arranged
concentrically within the topcylinder, and the ' projected radially between adjacent needles '31
in the top cylinder 2 (see Figure 8).. But imé
threads are guided from bobbins (not shown) on
mediately after projection in this way the bits
a carrier 9 above the top plate In of the ma
chine through a nest of tubes H within a sleeve 15 or web holders are retracted and remain in this ’
l2 which supports the bed for the guides. In‘ ' vposition-while the butts Ma travel around the
concentric portion of the cam groove or track g.
this machine the guides l are movable radially
The bits or web holders are fully retracted by the
from the inside to the outside of the needle 'cir'-‘
time they pass the point P (Figure 2) and are
cle NC (Figure 2) and thereupon de?ected lat
erally for wrapping the thread around single nee 20 not'projected again until they have travelled
nearly'full circle = and reached the location KL.
dles, or two or more successive needles to pro
The tube 20 has a bifurcated lever .23 keyed
duce ,multi-wrap effects; the guides are then re
stored to their original positions, all of these
movements and the meansby which they are
thereon, near its upper extremity, and the spaced
end portions 23a of this lever carry adjusting
e?ected being fullydescribed in the prior speci 25 screws 24 arranged at opposite sides of a lug;2_5
on one of the cross arms 2|. The screws 24 may,
?cation aforesaid. ‘In Figure I 2,_the point at
which the'lap or wrap thread guides‘! are pro
if desired, be furnished, with knurled wheels ‘26
or the like for rotating them so as to, enable the
jected for wrapping purposes is indicated at P,
cam C to be accurately set in the required po
this point being removed some distance from
the rib or purl knitting location KL. In Figure 30 sition. A knurled wheel 21 is screwed onv the
tube 20 to retain thelever 23 thereon; and to
2,1moreover, plain needles 3~and rib needles 31
are'alternately arranged in a ‘l x l ri-b set-out.‘
maintain the camring l8 atthe required height.
As shown in Figures 3, 4 and 5, the movable
The illustrated embodiment of the invention
section II of the cam is formed with a small disc
includes a ?at dial 13 of annular form provided
with?an annular ?ange l3a and having a radially 35 28 having a cylindrical projection 29 by means.
of which it is pivotally mounted in the cam plate
tricked surface l3b in which straight holding
58 so as to enable the said section to be rendered
down bits or web holders l4 each with a butt Ma
on one'edge are slidably mounted. The said
flange has apertures l3c therein to permit pas
sage of the‘ aforesaid threads to their guides or
feeders.
The annular ‘flange l3a} is spigoted at ‘
|3d into and held within the cylindrical bed 8
for the thread guides '1 so that the dial I3 is dis
posed‘ horizontally in'an inverted position, i. e.
with its tricked surface downwards, all as clearly
shown in Figure-1; The holding-down bits or
elements M are inserted into the tricks 15, butts
downwards, and are thus movable radially in a
horizontal plane, i; 'e'. at’ rightangles to the axis,
of the needle cylinders l and 2.
The complete '
device, therefore, is concentric with the needle
cylinders and’ revolves therewith. The control
ling means comprise'a cam C (Figure 3) ' con
sisting of a mainly annular outer section IS with
inoperative for reciprocatory knitting thereby en
abling all of the bitsror web holders lll'to be Ire-I
tained in the retracted position to clear the slack
yarn. A bit or .web holder in suchposition is
shown in Figure 10. The sectionis positively held
in-its normal, i. e. out, position during circular .
knitting. In this connection a'small pro?le cam
ring 30 is mounted underneath the cam plate l8,
on the’ central boss- I9 thereof, ' for engagement
with a pin 3i which is ?xed inzthe section I1 and
extends through a slot lBa in the cam plate (see
Figures 5 and 6). Moreover, a rod 32, ?tted with
in the tube 26 so as to_ extend therefrom at the
upper end and from the central boss l9 atthe '
lower'end, has a forked lever 33' pinned on its
lower end for engagement with a pin St in the
pro?le cam ring 30_- At the upper. end the rod
an‘ inner recess 15a and a partly annular inner
32 is connected with the timing mechanism 'of»
section l?fcompleted by a movable section I?
the machine by means of intermediate connec
with a nose or projection Ha to correspond with ,
tions of any conventional form whereby the pro-‘
the'recess 15a, these'sections beingv mounted on
?le cam ring is held-with the movable cam sec
tion I‘! in the operative. position. shown in Fig
a-circular plate or disc I 8 with acentral bored ,
ure 3. In the speci?c example illustrat‘edin Fig-V
ures ,1 and '7 a lever 35, which is ?xed by a cotter
pin 36 to the upper projecting end of the rody32, '
is connected by means of a link 31 to one ‘arm
38a of a bell crank 38 the other arm 38b of which
?rst obliquely outwards, then in the circumfer- ' ‘ latter is adapted for‘connection with the timing
mechanism. When ‘a change is made from 'circu-r
ential direction, for a short distance, and then
boss l9 suchwise that when the movable section
vI‘! is in'the normal (operative) position a groove
or track-g is formed for the butts Ma which
groove or track 'is mainly concentric with the
plate or disc but as regards the remainder extends
obliquely ‘back to the concentric portion. The
lar knitting to reciprocatory knitting the. rod 32
cam plate or disc l8 is ?xed, cam C uppermost,
is turned as the result of the action of the timing
below and concentrically with the aforesaiddial
mechanism so that the pro?le cam 30 is operated
.l3 onia tube 20 which is ?tted in the central boss 70 to release the movable cam section- I‘! which
thereupon, under the action of the butts Ilia on
l9 Y and: extends upwards therefrom axially
through the top cylinder component to the out
the bits or web holders I4, is turned to the inop
erative position. If desired, a spring 'may be r.
side thereof whence it extends upwards to and
provided in ‘. association’with the section II to
through a central boss 2min an upper structure
consisting of radial cross arms 2| attached to 75 assist this movement. Upon reversion to circularw
‘2,412,267
5
6
knitting the timing mechanism‘functions to turn
the rod 32 in the opposite direction, thereby posi
tively restoring the cam section 11 to its normal
position.
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,
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the‘needies and enabling same to be transferred
‘from one cylinder to the other ‘as occasion (dB
mands, means at Ya knitting location for operat
ing the said sliders to cause corresponding :needles
to knit a yarn, 'instruments'adapted-to co-op‘erate
with the needles in loop formation at a v:p'oint
removed from said knitting location, a device
tion of the bits or web holders at the appropriate
consisting of a dial having a ?at "radially grooved
locations will be provided.
,
surface, with a series of independently slidable
As will be understood, with an arrangement of
the character herein described the loweryedges 10 holding-‘down bits in the grooves for arrangement
suchwise that said holding-down bits can ‘be
of ‘the bits or web holders [4 are the holding
moved radially in a plane at right angles to the
down edges when the device is in use. This will
axis of ‘the needle cylinders, and means for con
be made clearer in the descriptionwof Figure 8
trolling the said bits so that they are projected
wherein‘ the fabric 1‘ is shown in relation to rib
seriatim to ‘co-operate with the needles which pro
needles 31 which are being retracted to knock
duce rib‘stitches at the knitting location and,.after
over rib loops. The fabric is normally pulled in
such co-operation, are ‘withdrawn to and main
a downward direction over the sinker brass 6,
tained in a retracted position to avoid the afore
and when the rib needles are in the course of
said instruments until again projected at the said
being retracted to take the knitting yarn y, as
indicated at R, the fabric rests on the said sinker 20 knitting location, and so on.
3. In a circular knitting machine,'in combina
brass. At this stage, the corresponding bit or
tion, a needle cylinder, 3, second needle cylinder
web holder M is fully projected so as to be in
axially opposed to the said ?rst mentioned cyl
readiness over the fabric. At R, moreover, the rib
inder, double-ended needles for operation .in said
needle latchl is open and an old loop 01 is around
cylinders, sliders in the cylinders for operating
the stem of the needle. The needle at R1 has been
the needles and enabling same ‘.to be transferred
vstill ‘further retracted and is in the ‘course of
from one cylinder to the other as occasion dee
casting off the old loop 01; as a result. of this
mands, instruments additional to and .for co-op
retraction the said needle commences to raise
eration ‘with the needles, a device consisting of a
the fabric 1‘. rI‘he needles at R2 and R3 are fully
retracted, having knocked over the old loops 02 30 dial, holding-down bits ‘in said dial, and means
for co controlling the holding-down bits that they
and drawn newloops nl through them. As the
are retracted seriatim ‘where the additional in
needles move to knocking-over position they raise
struments are operative, and projected seriatim
the fabric into ‘contact with the lower edges of
where the said instruments are inoperative.
the appropriate projected bits or web holders M
In a machine having two or more feeders, du
plicate or more cam formations to effect projec
which latter thereupon serve to hold down the ‘
fabric vsufficiently to permit of satisfactory rib
' 4. A combination according to claim 2, where
in the device and associated controlling means are '
?tted within the con?nes of the needle cylinders
knitting.‘ A retracted rib needle and a fully ad
so that the tips of the holding-down bits can be
vanced bit or web holder co-operating therewith
projected seriatim between the opposing ends of
are depicted in detail in Figure 9.
In a machine furnished with patterning mech 4-0 the cylinders and between appropriate needles at
the rib knitting location, and, as regards ‘the re
anism of the kind hereinbefore mentioned the
mainder of ‘the needle circle, can be retracted to
bobbin carrier 9 is ?xed on another tube 39 ro
an inoperative position within the circle.
tatably mounted, exteriorly, on the tube 20 which
5. In .a circular knitting machine, in combine.‘
carries the improved device, and below the bob
tion, a needle cylinder, a second needle cylinder
bin carrier a thread guiding cage 40 or like part
axially opposed to the said ?rst mentioned cyl
is rigidly attached to the same tube.
inder, double-ended needles for operation in v‘said.
What we claim then is:
cylinders, sliders in the cylinders for operating
1. In a circular knitting machine, in combina
the
needles and enabling same to be transferred
tion, a needle cylinder, a ‘second needle cylinder
axially opposed to the said ?rst mentioned cyl to from one cylinder to the other as'occasion de
mands, means at a knitting-locationfor operating
inder, double-ended needles for operation in said
the said sliders to cause corresponding needles to
cylinders, sliders in the cylinders for operating
knit a yarn, instrumentsadapted to co-operate
the needles and enabling same to be transferred
with the ‘needles in loop formation at a point re
from one cylinder to the other as occasion de
moved from said knitting location, a device con‘
mands, means at a knitting location for oper
sisting of a dial having a fiat radially grooved
ating the said sliders to cause corresponding
surface, with a series of independently slidable
needles to knit a yarn, instruments adapted to
holding-down bits formed with butts, ‘said ‘bits
co-operate with the needles in loop formation at
being arranged in the grooves in the dial such
a point removed from said knitting location, mov
able elements for holding down the old loops (EU wise as to be movable radially in a plane at right
angles to the axis of the needle cylinders, and
formed by needles upon which rib stitches are
means for controlling the said bits so that they
produced while the same needles draw yarn for
are projected seriatim to co-operate with the
and knock over the succeeding new loops, and
needles which produce rib stitches at'the knit
means for so controlling the said movable hold
ting location ,and, after such co-operation, are
ing down elements that the latter are moved to a
withdrawn to and maintainedzin a retracted po
position in proximity to the hooks of the knit
sition to avoid the aforesaid instruments until
ting needles at the knitting location for the pur
again projected ‘at the said knitting location, and
pose stated and are then moved to and main
tained in such a position as to avoid the instru
6. In a circular knitting machine, .in combina-.
ments at the aforesaid point.
tion, a rotary needle cylinder, a second rotary
2. In a circular-knitting machine, in combina-'
needle cylinder axially opposed to the ‘said ?rst
tion, a needle cylinder, a second needle cylinder
so
.
axially opposed to the .said ?rst mentioned cylin
der, double-ended needles for operation in said
cylinders, sliders in the cylinders for. operating
on.
'
i
,
'
.
. mentioned cylinder, double-ended needles for op»
eration in said cylinders, sliders in the cylinders
for operating the ‘needles and enabling same'ltoi'be
2,412,267
transferred from one cylinder to the other-as ¢oc-‘
tion‘, a needle cylinder, a‘ second needle cylinder
axiallyfopposedztoithe said ?rst mentioned cyl-,
'casion demands, means at a knitting location for
operating the said sliders to cause corresponding
needles to knit a yarn, instruments adapted to co
inder, double-ended needles for operationin said
o'perate‘with'the needles in loopformation at‘
7 cylinders, sliders inpthe cylinders for operating
the needles and enabling same to be transferred
a point removed from said knitting location, a dial ’
from one cylinder tosthe other as occasionde
which has a flat radially grooved surface and
is mounted to revolve with the cylinders, a series
of independently slidable ‘holding-down, bits
formed with butts, said bits being arranged in 10
the said sliders to cause corresponding needles to
knit a yarn, instruments‘ adapted to. co-‘operate
.the grooves in the dial suchwise as to be movable
radially in a plane at right angles to the axis of
the‘ needle cylinders, and means for controlling
ting location, and so on.
I
with the needles inloop formation at a point re
moved from said knitting location, a device con
sisting of a dial having a ?at radially grooved
surface, with a series of independently slidable
holding-down bits formed with butts, said bits
being; arranged in the grooves in the dial such
wise as to be movable radially in a plane at, right
angles to the axis of the needle cylinders, means
the said bits so that they are projected seriatim
to co-operate with the needles which produce rib
‘stitches at the knitting location and, after such
col-operation, are withdrawn to and "maintained
in'a retracted position to avoid the aforesaid, in
struments untilagain projected at the said knit
mands, means at a knitting location for operating _
for'controlling' the said bits so that they are pro- ,
jected seriatim to co-operate with the needles
20 which produce rib, stitches'at the knitting loca
7. In a circular knitting machine, in combina»
.tion, 'a needle cylinder, a second needle cylinder
axially opposed to the said ?rst mentioned cylin
tion and, after such co-operation, are withdrawn
to and maintained in a retracted position to‘avoid
the aforesaid instruments until again projected
at the said knitting location,~and so on, an ad‘
der, double-ended needles for operation in said
cylinders, sliders in the cylinders for operating 25 justment where the said means are ?xed and can ,
the needles and enabling same to be transferred
be turned and set in proper relationship to ‘the
from onecylinder to the other as occasion de
knitting location, and ‘a member on which the
mands,1means at a knitting location for operat
said means are mounted, said member extending
ing the said sliders to cause corresponding needles
axially through the cylinder in which needles
to knit a‘yarn, instruments adapted to co-operate 30 operate‘ for rib knitting and being connected ex.
with the needles in loop formation ‘at a point re
moved from said knitting location, a device con
sisting of a dial having a ?at radially grooved
surface, with a series of independently slidable
holding-down bits formed with butts, said bits
teriorly with the aforesaid adjustment.
'
vl0. In a circular single feed knitting machine
adapted to operate for both circular knitting and
reciprocatory knitting, in combination, a needle
cylinder, a second needle cylinder axially opposed
to the said ?rst mentioned cylinder, double-end
ed needles for operation in said cylinders, sliders
in the cylinders for operating the needles and
enabling same to be transferred from one 0171-,
jected seriatim to co-operate with the needles 40 inder to the other as occasion demands, means
which produce rib stitches at the knitting loca
at a knitting location for operating the said slid
tion and, after such co-operation, are withdrawn
ers to cause corresponding needles to knit a yarn,
to and maintained in a retracted position to
instruments adapted to co-operate with the nee
avoid the aforesaid instruments until againlpro
dles in loop formation at a point removed from
jected at the said knitting location, and so on,
said knitting location, a device consisting of a dial
and an adjustment whereby the said means are ‘
having a flat radially grooved surface, with a
‘ ?xed and can be turned and set in proper 'rela
series of independently slidable holding-down
tionship to the knitting location.
'
bits in the grooves for arrangement suchwise that
said holding-down bits can be moved radially in
‘8. In a circular knitting machine, in combina
being arranged in the grooves in the dial such
wise as to be movable radially in plane at right‘
angles to the axis of the needle cylinders, means
for controlling the said bits so that they are pro
tion, a needle cylinder, a second needle cylinder ,
. ‘axially opposed to the said ‘?rst mentioned cylin
a plane at right angles to the axis of the needle
cylinders, means for controlling the said bits so
der, ‘double-ended needles for operationin said
cylinders, sliders in the cylinders‘for operating
that they are projected'seriatim to cooperate with
the needles and enabling same to be transferred
from one cylinder to the other as occasion de
knitting location and, after such co-operation;
mands, means at a knittinglocation for operating
the said sliders to cause corresponding needles to
knit a'yarn‘, instruments additional to and adapt
ed to co-operate with the needles in loop forma
1 tion at a point removedfrom said knitting loca (50
, tion, a carrier for said additional instruments, a
the needles which produce, rib stitches at the
are withdrawn to and maintained in a- retracted
position to avoid the aforesaid instruments until »
again projected at the said knitting location, and. f
so on, and meansgfor rendering the controlling"
means inactivaso far as the projection ‘of the
holding down bits is concerned, during recipro
catory knitting, so that the bits are completely
dial which is attached to the said carrier and has
retracted, for the purpose herein‘ described.
a- ?at radially grooved surface, a series 'of indee ,
11. In a circular single feed knittingmachine
adapted to operate for both circular knitting and
reciprocatory knitting, in combination, a needle
pendently ‘slidable holding-down bits in the
grooves in the dial for movement radially in a
‘ plane atv right angles to the axis of the needle
‘ cylinders, and means for controlling the said bits
so that they are projected seriatim to co-operate ‘
‘ with the needles which produce rib stitches at the
1
cylinder, a second needle cylinder axially opposed
to the said ?rst mentioned cylinder, double-ended
needles for operation in said cylinders, sliders in
are'withdrawn'to and maintained ina retracted
the cylinders for operating‘the needles and enabling same to be transferred fromone cylinder
to the other as occasion demands, means'at a
position to avoid the aforesaid instruments until ‘
knitting location for operating the said slidersit‘o‘
again projected at the said knitting location, and
cause corresponding needles to knit a yarn, in—.
knitting location and, after such co-‘operation,
struments adapted to co-operatewith- the needles
.;j9.;' In. a circular knitting machine,.in combina 75 inloop formation at a Point. removed, from said
so on;
x
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.
_
saw?
.
knitting location, a device consisting, ofa dial
hear-lea ?atradially grooved Surface, with‘ a se
ri?es, of independently ‘slidable. holdingedown' bits
formed with butts, said bits being arranged in the
grooves in the, dial? 'ucnwi'se‘ as to beinov'able
radially in a planezat‘right. angles to the axis of
the needle ‘cylinders, means for controlling the
said bits so that they are projected seriatim to
co-operate with/the needles which ‘produce rib
s'titc'hfes'at the knitting location and, after such
c'dro‘pe'ration, are‘ withdrawn, to and maintained
in a retracted position to avoid he aforesaid in
struments until again projected at the saidknit
ting location, andso on‘,v a part of said means
being’arranged formovement to. and from an op;
era‘tive position so that said part can be rendered
inactive,‘ and the bits can thereby ‘be completely
10,
surface downwards, straight holding=down bits in“v
the grooves in medial; each; of‘s'aidb'ts having ‘a’,
butt on‘on'e edge; and'a eamrbr, action uponisaidj
b-uttsftjo comm the holdingedoyvn bits‘, said can
consisting of sections which provide a groove for
the butts‘; and a circular plate whiqh carries" the
cart 'sectionsaud is ?xed, Item upneririest; bi'eleu
and'coricentrically with the, dial, the cam serving.
SD '59 0011111701; in? ll?l?iilgs?own'bitsftlla? they are
10
retracted. 'seriatim where. the additional-inst "
Illenfhs, are operative," and ' projected? seria
thepurpose'lherem described.
15
retracted to provide clearance for slack yarn,
during reciprocato'ry knitting, timing mechanism
,
Where‘ the said, instrumenisfare inolqié‘rativ'e, I61‘
'f 14’. In, acircular knitting machine, in (zombie
nation, a rotary. needle cylinder; at second; rotary
eeedl'eicylinqerj axially opposedto the‘ Said ?rst
mentioned cylinder, double-ended needles [for OP!
station in, Said cylinders; sliders in the cylinders,»
‘
"
"
'
“
for operating the needles ‘and enabling same to
under the control of, which the movable means 20 be transferred from one cylinder, to the other as,
are moved, and intermediate connections be
occasion ' demands, instruments‘. additional to. and.
tween, said ‘mechanism and the. said part. ‘
'
for cQ-operation withth'e‘ne'e'dles', ‘a ‘carrier ‘for
1.2: ‘In a circular knittingmach'ine, in combina
said instruments, a flat. dial which has a radially
tion, a, needle cylinder, a second needle cylinder
tricked surface, and is attached to. the aforesaid
axially oppgsed to, the'said, ?rst mentioned cyl
carrier'in an'inverted position with its'trick'ed
surface downwards, straight hol'dingldo'wn bitsfin
inder,'double-ended needles for operation in said
cylinders, sliders in the cylinders for operating
thev needles and enabling same to be transferred
from one cylinder to the other as occasion de
the groove-sin medial, each‘ or said bits h?iii?g'a -
butt (in one‘ BQETBM?Q a cam fql‘ M1011 upee'siifl
butts to control. ‘the heldingwdéwn bits, an cam,
mands, means at a knitting location for operat
consisting of a‘mainl'y annular'outerv section w ,,,h
an inner ‘recess and a partly annular‘in?er ég'cé
' ties qomnleted by, a movable scctibnrwitha floss.
to correspond with the‘ recess, the se?tiens‘bei?g
ing‘ the ‘said sliders ‘to cause corresponding
needles to knit a yarn, instruments adapted to
co-operate with the needles in loop formation at
a point removed from said knitting location, a
device consisting of a dial having a flat radially
such that when the movable section is in the nore
mal petition the grolove so ‘fdrm'ed? er the butts.
grooved suriace, with a series of independently
slidable holding-down bits formed'with' butts,
said‘ bits being arranged in’ the grooves in the dial
is mainly concentric withltheineédi'e ‘cylinders but
ting‘locationan'd, after such co-operation, are
that they are‘ retracted Seriatim Where, theaddi
tional instruments are operative, vand projected;
seriatiin where the said instruments are inoperae
as regards the remainderv extends ?rstobliquely
fer
dutwallds,
a shortthen
distance,
in the.and
circumferential.
then' obliquelydirect}v
back 9
suchwise as to be movable radially, in a plane at
right angles to the axis of the needle cylinders, 40 the egocentric ‘portion; a ' circular. ‘plate which
means for controlling the said bits so that they
' carriesv the cam sections and is ?xedfcam upper;
are projected seriatim to co-operate with the
most below and concentrically With'the dial, the
needles which produce rib stitches at the knit
cam serving so to, control the hbldins?ewn tilts.»v
withdrawn to and maintained in a retracted'pos‘i
tion to avoid the aforesaid instruments u'ntil
again projected at the said knittinglocation, and
8° Q11, an adjustment whereby the said means are
?xed and can be turned‘ and set in proper rela
tionship to the knitting location, a tubular mem
her on which the said means are mounted, said
member extending axiall'y'through the cylinder in
which needles operate for rib; knitting and being
connected exteriorly with the aforesaid adjust;
ment, apart of the aforesaid means being‘ are
rangedfor movement'to‘and from an operative
position, a rod extending through the tubular
member for, controlling the movable part, timing
mechanism, and connections‘ between said mech
50
tive, for the purpose herein ‘described, timing
mechanism, and intermediate connections be;
tween said mechgnism and the movable cam sec.
tion whereby the latter can bé operated at desired
?mes‘n?,
.,
,
,
I
' 115-111 a Circular. knittmgmachine in combi
nation,‘ a rotary bottom ‘ needle, cylinder, a
superimp95§$1 rotary top. needle éylinder compel
nent, ?xed, bottom and top knitting‘ can; systems
in
ended
associates
needles for
withoseratidh
the needle
11.1 said
cylinders
éylinfder.cloubhe.»
ers' in the cylinders ror operating the needles ‘and.
anism and the rod whereby the latter is operated
an insane to be mister-earns bias éyli #
to withdraw the movable part so that the bits can
be completely retracted when a change is made
' Items additionafto’andfor co-operation withthe
from circular knitting to reciprocatory knitting.
13. In a circular knitting machine, in combi
nation, a rotary needle cylinder, a second rotary
needle cylinder axially opposed to the said ?rst
mentioned cylinder, double-ended needles for op
eration in said cylinders, sliders in the cylinders
for operating the needles and enabling same to
be transferred from one cylinder to the other as
occasion demands, instruments additional to and
for co-operation with the needles, a carrier for
said instruments, a flat dial which has a radially
tricked surface and is attached to the aforesaid
der to‘ the other as v,ciccasi'on'demands, ins _
needles, a carrier for said instruments, a ?at dial
which has a radially tricked surface and is at
tached to the aforesaid carrier in an inverted po
» sition with its tricked surface downwards,
straight holding-down bits in the grooves in the
dial, each of said bits having a butt on one edge,
and a cam for action upon said butts to- control
the holding-down bits, said cam consisting of
sections which provide a, groove for the butts, a
circular plate which carries the cam sections and
is ?xed, cam uppermost, below and concentrically
with the dial, the cam serving, so to control the
holding-down bits that they are retracted seri
carrier in an inverted position with its tricked 75 atim where the additional instruments are open
slates
,
a
1 1
.
.
‘operation with the needles, a carrier for saidine';
ativé; and projected seriatimwhere the said in
strurnents are inoperative, for the purpose herein
described, a tube upon which the circular plate is
?xed, said tube extending ‘upwards through the
struments, a flat dial .which' has-a radially ‘tricked’; '
surface and is attached to the aforesaid'carrier'
in‘ an inverted position with its, tricked‘suriace .
downwards, straight holding-down bits (in, the;
top cylinder component, a lever on the tube, and.
grooves in the dial, each of saidbits‘having a;
adjusting screws in association with said lever
whereby the cam can ‘be set in the required posi-'
tion in relation to the top knitting cam system.
16. In a circular knitting machine adapted to
operate for both circular knitting and reciproca
to'ry knitting, in combination, a rotary needle
cylinder, a second rotary, needle cylinder axially,
opposed to the said ?rst mentioned. cylinder, dou
butt on one edge, and a cam'for action upon said '
butts to control :the holding-down bits, saidcam‘
consisting of a mainly annular outer section with
an inner. recess and a partly annular inner sectionv
completed by amovable section with‘a' pin there-l .
in and a'nose ‘to correspond with the recess, the‘,
sections beingsuch thatrwhen the movable 'sec
tion is in the normal position the groove so
formed for the' butts is mainly concentric with
the needle cylinders but as regards theremain
bleeended needles for operation in‘said cylinders,
sliders in the cylinders for operating the needles
and enabling same to be transferred from'one
cylinder to the other as occasion demands, in
struments additional to and for co-operation with
der extends ?rst obliquely outwards, then‘ in the
circumferential direction for, a short distance,"
and then obliquely backto the concentric por- '
the needles, a carrier for said instruments, a flat
dial which has a radially tricked surface and is
attached to the aforesaid carrier in an inverted
:tion, a circular plate which is 'formed with‘ a '
slot, carries thecam sections and is?xed, cam
uppermost, below‘ and concentrically with the
position with its tricked surface, downwards,
dial, the cam serving so to 'control the holding-;. .
' straight holding-down bits inthe grooves in the
‘down bits that they are retracted seriatim where,
the additional instruments are operative,‘ and
dial, each of said bits having a, button one edge,
and ‘a cam for action upon said butts to control
the'holding-down bits, said cam consisting of a
mainly annular outer section with an inner recess
and‘a partly annular inner, section completed by
a movable section with a nose to correspond with
the recess, the sections being such that when the
movable section is in the normal position the
groove so formed for the butts is mainly concen
trio with the needle cylinders but as regards the
remainder extends ?rst obliquely outwards, then
in the circumferential direction for a short dis
projected seriatim where the said instruments "
are inoperative, for the purpose herein‘ de
scribed, an adjustment whereby. the positive mo
tion cam is ?xed and can be turned and set in its
proper position, a tube upon‘ which the circular‘ ,
plate is ?xed, said tube extending through the top '
needle cylinder and being connected exteriorly,
with the aforesaid adjustment, a cam ring which.
has therein a pin and is associated With the cir
35 cular plate for engagement with the pin in the;
tance, andthen obliquely back to the concentric
portion, a circular plate which carries the cam
sections and is ?xed, cam uppermost, below and
concentrically with the dial, the cam serving so
to control the holding-down bits that they are 40
retracted seriatim where the ‘additional instru-l
ments are operative,‘ .and ' projected seriatim
movable cam sec-tion, said last mentioned pin‘
extending through the slot in the circular plate,
a rod ?tted'withi'n the tube,‘a lever on the rod
for engagement with the pin in the cam ring,
timing mechanism, and intermediate connec
tions between said mechanism and the rod where-,7
by the latter is turned to render themovable
cam section inoperative during reciprocatory
where the said instruments are‘ inoperative, for.
the purpose herein described, the movable cam
section being pivotally mounted in the circular
plate,"means for-positively holding thesaid mov
able cam section in its normal position during
circular knitting, timing mechanism, and inter
intermediate connections whereby the cam'ring
mediate connections between said mechanism
is normally held with the movable cam section
knitting.
,
.
18. A circular'knitting machine according to
claim 1'7, wherein the rod is connected with the
timing mechanism of the machine by means of
and the movable cam section whereby the latter
in the operative position, the construction and-_
is vrendered inoperative for reciprocatory knitting.
w~17. Ina circular knitting machine. adapted to
arrangement being such that (a) when a change
operate-{or-both circular knitting and recipro
is made fromi'circular knitting to reciprocatory
knitting the cam ring is operated‘to cause .or,
catory knitting, in combination; a rotary bottom
needle cylinder, a superimposed rotary top needle
cylinder, double-ended needles for operation in
enable the movable cam section to take up anl
inoperativeposition, and (b) when circular knit
ting is resumed thesaid section is rendered op- 3
said cylinders, sliders in the cylinders for operat
ing‘the needles and enabling same to be trans
ferred'from'one cylinder to the other as occasion
demands,- instruments additional to and for co 60
erative again.
V
'
_
'
,
r
r
HENRY HAROLDHOLMES.
ALFRED PERCY SAUNDERS; ‘
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