US2374538A - Knitting machine - Google Patents

Knitting machine Download PDF

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Publication number
US2374538A
US2374538A US532589A US53258944A US2374538A US 2374538 A US2374538 A US 2374538A US 532589 A US532589 A US 532589A US 53258944 A US53258944 A US 53258944A US 2374538 A US2374538 A US 2374538A
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Prior art keywords
lever
cam
yarn
drum
cams
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US532589A
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Isaac H C Green
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Hemphill Co
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Hemphill Co
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Priority claimed from US475020A external-priority patent/US2351758A/en
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    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B9/00Circular knitting machines with independently-movable needles
    • D04B9/26Circular knitting machines with independently-movable needles for producing patterned fabrics
    • D04B9/28Circular knitting machines with independently-movable needles for producing patterned fabrics with colour patterns
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B1/00Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
    • D04B1/10Patterned fabrics or articles
    • D04B1/12Patterned fabrics or articles characterised by thread material
    • D04B1/126Patterned fabrics or articles characterised by thread material with colour pattern, e.g. intarsia fabrics
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04BKNITTING
    • D04B9/00Circular knitting machines with independently-movable needles
    • D04B9/26Circular knitting machines with independently-movable needles for producing patterned fabrics
    • D04B9/28Circular knitting machines with independently-movable needles for producing patterned fabrics with colour patterns
    • D04B9/30Circular knitting machines with independently-movable needles for producing patterned fabrics with colour patterns by striping
    • D04B9/32Circular knitting machines with independently-movable needles for producing patterned fabrics with colour patterns by striping by wrap striping

Definitions

  • This case relates to a circular, independent needle type knitting machine adapted to knit fabric having raised patterns and in addition thereto, a. true wrap pattern, these serving tcimemploying the two feeds, but as plai fabric.
  • Fig. 3 is a" plan of that.mechanismillustrated in Fig. l; I
  • anism illustrated in Fig. 3, also more of chine extending. to the right handside Fig. 5 is an elevation at the left side of the ma:
  • Fig. 4 is a plan view showing part of the met-a the ma- .nism of Fig. 18; H I v Figs. 20, 21 and22 show features of the auxilcontrol means operable from a drum on the main cam shaft; 1
  • Fig. 6 is'a plan showing'certain details of control for the auxiliary ya'rnfed and the binder for that yarn;
  • Fig. 7 is an elevation showing that same mechanism
  • Fig. 8 is a detailed view of the auxiliary yarn feedingfingerand slide withinwhich that finger works;
  • Fig.9 is a section through part ofthe frame of the machineshowing drums on the left hand end of the cam shaft and levers on those drums; V
  • Fig. 10 is a, detail view of the second lever from the end and of'the cams which affect that lever;
  • Fig. 11 is a similar'viewof the third lever from the end;
  • l2 isa detail-ofj'thepattem drum, plungers, and-of a sinker and jack such as arle employed for reverse plating at the main feeding side?
  • i p Fig. 13 is edema in the pattern druin and certai leversat the back" of the machine which are employed to select needles; for knitting the Fig. leis a detailview of the wrap yarn pat terning mea'ns;
  • Fig. 15 is a plan 'view of the pattern meansfor controlling knitting of the raised pattern fabric
  • Fig. 16 isadetail of this mechanism showing controlfor knittinga l til. simulatedribi top;
  • Fig. l'l is a detailof the mechanism of Figs. 13 and 15, but showing retiming means
  • Fig. 19 is an elevational view ofthe mecha- Fig. 23 'isa section shbwingthe support for the raised fabric pattern drum, part of the ratcheting means for that drum and the mechanism' for withdrawing it from action;
  • Fig. 24 is a partial sectional view through Fig.
  • Fig. 25 is a. detail view of lever which withdrawsfrom actionthe drum mentioned with respect to Figs. 23 and'24; v
  • Fig. 26' is a developed view of the pattern drum at the extreme left hand end of the knitting cam shaft; l
  • Fig.27' is-a developedwiew'of the next drum affected by cams on that shaft and showing two rows of cams which apply to the auxiliary yarn feed and the binder control;
  • Fig. 28 is a detail of two of the cams on the drum shown in Fig. 27;
  • Fig. 29 is a diagrammatic view of cams which affect needle andjack butts.
  • Fig. 30 is a conventional illustration of a fabric produced on the machine herein described;
  • Fig. 31 is a plan view of a detail of the drum racking stop means; and
  • I Fig. 32 is an elevation of the mechanism shown in Fig. 31.
  • the machine is of aty
  • This cylinder has the usual latch needles and sinkers functioning with those needles, said needles being carried in a sinker head3 above which. is a sinker cam cap 4.
  • a carrier ring 5 is pivoted at 6 on a post 1.
  • this carrier ring has a plurality of yarn feeding levers 8 pivoted in an extension 9 to the carrier ring and these yarn feeding levers are controlled tofeed and change yarns as in United States Patent No. 933,443..
  • cams Upon a cam'plate lfland-at the right hand side of the machine, are mounted the usual needle cams such as effect stitch drawing in this type of machine. Those cams are not shown in detail, but will be described more specifically with reference to Fig. 29.
  • -Wrap yarns are to be fed to certain selected needles by mechanism such as illustrated ,and described in United States Patent #1.702,608 and in this case the only part of that mechanism be moved away from the cylinde when no wrap pattern is to be formed.
  • the drum 2 has a plurality of discs fixed thereto, each of said discs having frangible butts 36, it being understood that these butts may be broken off according to any desired pattern. All of the butts are shown intact here since this matter of setting up a pattern is one which a skilled knitter or knitting machine can do.
  • the drum is ratcheted periodically by mechaand a link 39.
  • the link 39 connects to other mechanism all of which is shown here since it is adequately described in the patent to which ref- 1 erence is made.
  • a series of plungers 40 (shown more clearly in Fig- 14) and guided within a bracket generally shown is a wrap yarn feeding spindle ll, disc I2 and eyelets l3 through which the several wrap yarns are threaded-and fed.
  • a spindle I4 is rotatable and is driven-by gears l5 and I6, Fig. 5-, and through other gearing .(not shown) serves to rotate the spindle I lat a 1 x 1 ratio with the needle cylinder.
  • Spindle i4 is guided in a bearing in bracket, l1, said bracket extending upwardly as a post Iilto support other elements of the wrap mechanism all as shown in the patent just above mentioned. 1 v
  • This cam shtftmakes one .revolution for each knitted stocking produced and thefusual cams along with other cams later to. be described, control the various functions of the machine.
  • the only cams necessarily described here are those which affect feeding of-the'auxiliary yarn also control the pattern means at. the back of the machine for the raised part of the fabric.
  • a bracket 23 and that bracket carries a pattern drum 24 rotatable on a spindle 25.
  • the spindle 25 is really supported within an arm 26 pivoted on the bracket at 21 and guided at its other end by a shoulder screw 28 extended through a slot 29.
  • a spring 30 is attached to the bracket and to the arm 26 and serves to pull that arm inwardly against an adjustable stop screw 3
  • a lever 32 pivots at 33 and by means of a connecting lever 34 and, link 35, the drum 24 may indicated by numeral 4!, are contacted by the butts 36 and are moved inwardly or outwardly to and from the needle cylinder in accordance with the set up of the pattern.
  • the cam-ended plunger 46 works upon a butt at the upper end of one-half of the jacks (those at the sole side of the machine) and make it possible to pattern in the instep while making the sole of the stocking plain.
  • This cam is drawn inwardly by a spring 41 and is moved out by a lever 48 pivoted at 49 and which hooks against a projection 50 at about the central part of the plunger.
  • Link 48 connects to the lever 48 and controls knitting an unpatterned sole from suitable cams (not shown).
  • the back of the machine and on the left handside, mechanism is provided by means of which the needle jacks areselected to produce a I x 1 simulated rib top and also for the purpose of producing the raised fabric pattern throughout the leg and foot or other desired areas of a fabric. That jack selection is brought about by a pattern a second group of levers 51, these levers having their inner ends so constructed as to engage the butts 42 to raise jacks 44 as they are selected preparatory to causing their needles to take the auxiliary yarn.
  • the-jacks move vertically until their master butts 45 contact a master cam 58 whereupon the needles are raised to clearing and yarn taking height.
  • the butts 45 engage and are drawn down by a cam 59, these cams beingbetter shown in a diagrammatic view, Figs. 19 and 29. 1
  • and mechanism appurtenant thereto are mounted on a swingin bar 60, Figs. 23and 24, that bar pivoting at 6
  • a stop screw 64 is adjustable and limits movement of the bar 50 as the drum;moves to active position. To move that Springs 56' no. matter what the position ofthe drum.
  • a link 'l'l connects to the arm :72 and then ex-. tends across connecting to a bell crank lever 18,- Fig. 4, one arm of which engages behind the lever 19.
  • This lever "79' is contacted by certain cams on the 104-tooth gear and is thereby periodically moved to and fro to impart ratcheting movement to the front drum later to be described;
  • is retimed-at appropriate-intervals by mechanism shown in Figs. 3, 15 and 17.
  • the ratchet wheel has one short tooth 88 and the pawls 68 and 68 which are normally urged inwardly against the ratchet wheel teeth may be drawn outwardly bymean's of a detent 8
  • con tacts pins 83 and 84, the pin 83 projecting from the top pawl 69 and the'pintl from the lower pawl 68.
  • is stopped entirely and does not start again until the I heel is finished and the foot commences.
  • both paWlS are completely out of contact with ratchet wheel teeth'as shown in Fig. 15, and also, the t e nem is p ed y eans shownin-Figs. B1an'd32.
  • lever 19 is shownin practioally i s t rm st iti n and e the atche ng o m 5' nd lso drum 20, sto be stopped, a'bell crank lever 19 pivoted atllfl comes into. the position ojthese Figs. 31 and 32, holding lever 19 outwardly so th t it is not affected by the cam or cams which actuate it.
  • the bracket; 82 is fixed to. extension 85 which projects from the rearpart or the circular. base. Those parts are stationary.
  • the pawls are withe drawn when the bar fill. is moved to more the drum away from its. active position.
  • the ratchet movement of plate H takes bell crank lever 86 pivoted at 81 and connected by a link 88 to the end of that topmost lever.
  • This bell crank lever 86 is connected at its other end to a depending link; 89 which extends downwardly to mechanism hereinafter to be described and by 55 lsnio edawavtrem he nawls on y larencueh means oi which properly timed partedtdthetoplavefii. M j.
  • Linkqm extends downw rd y and. connects Ito-a leve orarm afieoted by certa n c ms-on drum 2!; Now referrinsflto Fig 13,5, ,510 andll, )th drum. cams. thereon and connections tatertain links above mentioned are shown.
  • InFigs. 5' anal the outermost lever 10 pivoted at I03 athebraoket 1.04 has a toe miwbicb en a es won a row, of cams includimi', the. cams-I08 and IQL;
  • the lev r J02 is connected to the lower :end of ;.link ,89.
  • I08 connects to the lever log-and to a .fix dpa-rtoftbetmachine and maintains the toe 85 incontact with one or. thecam o downw rdly onthecam l ,Wbenever E he -toe of the leverrides on ione of the cams 805 or the link 89 lspulleddownwaridlyondtho opmost lever 53 outwardly. thereby projecting the ppropriate plun er inwardly asai stthe cylinder to cngaeeand select 'iack's.
  • the spring I09 is connected to link.
  • V l Thesecondlever-l-H hasa oe llz which bears uponoams .ll3andll4 onthev drum -2l.--This.
  • lever M is offset to the side and connects to the lower end of.
  • link 65.111183 ⁇ is the link. which.
  • Cam 06 lifts the toe of lever fill-and pushes the place stop selecting plunger inwardly t make 1 x 1 type rib construction at the beginning *of"the' stockingtop; that cam controls throughout the to. a point Where the 1 x I construction again commences.
  • Cams H3 and H raised pattern are effective in the toe and throughoutthe start of thetop-,*and lnthe heel,
  • iznoulsesareixm which govern the tanned drum 5I is moved away from'l'evers 5'3 so that no raised pattern effect is possibleuntil again starting in the leg.
  • Cam I I4 along with cam I06 prevents any'type of raised pattern efi'ect inthe heel.
  • 1 x" 1 typesimulated rib is knitted" throughout the sole of the stocking rather than aplain knit sole.
  • the cams I I8 and H9 which affect the position of auxiliary stitch cam 90 pull that cam out in the toe and in' the heel.
  • the drum controls plating and reverse plating through certain mechanismin the sinker cam cap 4.
  • This drum I has'a series of discs, each of which has a, plurality of butts I2I' which are removable and whereby-a pattern is set up on the drum for controlling the position of a series of plungers' I22.
  • plungers I22 contact butts on jacks I23, and those jacks'; in turn, control the position of sinkers I 24, all as described in'United States-Patent #1052377 I v "The plungers I22 are slidablein abracket I25 which is attached to the circular base of the machine, and each of these plungers has a spring I26 by means of which it is' held outwardly away from the butts on jacks I23 except as moved inwardly bythe appropriate discs on'drum l20.
  • the drum I20 is rotatable on a movable bar I21, that said bar being capable of swinging about the pivot point I28 and having an elongated 'arrn I29 to which" is attached a lever I30.
  • This lever I30 con nects through to certain controlling mear'iswhefe bythe drummay be moved outwardly and the plated and reverse plated control thereby render ed'inactive.
  • the drum I20 is racked periodically by pawls generally indicated by numeral I3I and which are spring pressed by springs I32 to engage a ratchet 'wheel I33 all as d'escribedin the patent just'ab'ove mentioned;
  • the mechanism for that purpose which is illustrated; here includes the movable lever'19 before referred to, a connecting link I34, thepawls I3I and ratchet wheel I33.
  • auxiliary yarn designated by a is fed through a yarn feeding finger I35' which 'sli des' vertically in a small cros'shead-136.
  • This finger I35 is moved by a lever I31 pivotedat I38 and connected by means of a depending link I 39 to certain cams onlthescamdrum 22.
  • the link I39 is forked at its upper end to'jengage about'the outer end of the lever I31 and is alsovforked' at the inner end to engage a pin-I43.
  • a yarn binder for the auxiliary yarn is mounted on a bracket I44 and includes binder" elements "I45 and I 46;
  • the element I45 is movable and is held upwardly or in closed-position-by means of a spring I41 except when opened bymovement' 'of lever I48 also pivoted at I'38.
  • the lever I48-a1s0 projects to the other side of the pivoted end and is engaged by the, forked-end of a second'vertically disposed link I49. That link projects downwardlyrto beguided bythe element I40and contacts certain cuts'that yarn and binds it in aknown manner.
  • the fixed binder-element I46 of the binder is pressed by means of a spring I53 against the movable blade I45.
  • Spring I41 maintains the cutter and binder in closed position and forces the link I49 downward- 13/ against the cams on the drum.
  • a spring I54 connects to the outer end of lever I31 and to a fixed point'on the supporting bracket and likewise, moves that lever' I31 and the bar I39 so as to withdrawn the auxiliary yarn from feeding position and maintain the bar down against its cams on the drum.
  • Cam I50 opens vthebinder and cutter to allow the auxiliary yarn to be introduced to'the needles at the start of the top.
  • Cam I5I opens that binder and cutter so as to take the auxiliary yarn and-cut and clamp it after finishing the leg and upon entering the heel of the stocking.
  • the needles I50 have butts I59 and at the left of the figure, those butts are moving along in'the pathway I60 as they are guided by the raise cam IBI. Jacks are leveled as the master butts 45 are raised above cam, I62.
  • two yarns are preferably fed at the main feeding station and one of those yarns is so selected as to match in color arid appearance the auxiliary yarn a.
  • the tee can m causes the arn e to be reagtereii'g assessed i i'eretorcea-tesr nit speififie biridr" test time as er-asses the for seems-ea I Aster serene are; le apes stares-g riel- I seas 1 e was dress nest n w deceit Itl wiii-ae'aifiteen the spices as receive the withdrawn yarn.

Description

April 1945. l. H. c. GREEN 2,374,538
KNITTING MACHINE Original Filed Feb. 6, 1943 15 Sheets-Sheet l hrs/via)? April 24, 1945; H. c. GREEN KNITTING MACHINE Original Filed Feb. 6, 1943 15 Sheets-Sheet 2 Eli/701?. Ada 5176925524 24, 1945. H c, GREEN 2,374,538
KNITTING MACHINE Original Filed Feb. 6, 19 1s 15 Sheets-Sheet 5 far/Emma;
law/901161122511 3 April 24, 1945. 1. H. c. GREEN 2,374,533
KNITTING MACHINE Original Filed Feb. 6, 1943 15 Sheets-Sheet 4 I Myrna. IJMLHKKEE'EM pr 24, 1945- v l'. H. c; GREEN 2,374,538
KNITTING MACHINE Original Filed Feb. s, 1943 15 Sheets-Shet 5 [Amt/V702.- [YA/1619.76. CREE]! April 1945; I. H. c. GR EEN 2,374,538
KNITTING MACHINE OriginalFiled Feb. 6, '1943 15 Sheets-Sheet 6 [II/VENTfiR: [AVA/10566195511 24, 1945. c. GREEN 2,374,538
KNITTING MACHINE Original Filed Feb. 6, 1943 15 Sheets-Sheet 7 JANE/V7012:
April 24, 1945.
l. H. c. GREEN KNITTING MACHINE Original Filed Feb. 6, 1943 15 Sheets-Sheet a [ZYKE'JVZWR/ 31621651141855)! April 24, 1945. v I. H. c. GREEN KNITTING MACHINE Original Fi led Feb. e, 1943 15 Sheets-Sheet 9 April 24, 1945. l. H. c. GREEN .YKNITTING MACHINE Origina} Filed Feb. 6. 1943 15 SheetsSheet 10 e h e-Le April 24, 1945.
l. H. C. GREEN KNITTING MACHINE 1s Sheets-Sheet 11 Original Filed Feb. 6, 1943 [WE/V702: V A cHCCpEE/y April 24, 1945. I. H. C. GREEN KNITTING MACHINE Original Filed Feb. 6. I943 15 Sheets -Sheet l2 [Alma/T012. v 13254615. 6. 475551;;
o o o o o a 0 a a a o o o o a o 0 a a 0 a o o o 0 a 0 o o o o a a a o o o o .0 o o o o o o a o o o a 0 0 o 0 o o a o 0 o o o .o a o 0 o a 0 ya. a v o o o a l. H. c. GREEN KNITTING MACHINE April 24, 1945.
15 Sheets-Sheet; 13
Original Filed Feb. 6, 1943 Aprilv 24, 1945. l. H. c. GREEN KNITTING MACHINE Original Filed Feb. 6, 1943 15 Sheets-Sheet 15 Patented Apr. 24, 1945 Isaac H. C. Green, Pawtucket'R. I., assignor to Hemphill Company, Central Falls, R.'I.,' a corporation of Massachusetts i v Original application February 6,1943, Serial No. 475,020. Divided and this application Apr-i125, 1944, Serial No. 532.589 I i Thi case .is a division of application Serial #475,020, filed February 6, 1943, which is a con tinuation as to all common subject matter of application Serial #443,083, filed May 15, 1942.
This case relates to a circular, independent needle type knitting machine adapted to knit fabric having raised patterns and in addition thereto, a. true wrap pattern, these serving tcimemploying the two feeds, but as plai fabric.If,
two differently colored yarns are fed at "these opposite feeds, the plain areas Wouldhave al ternating courses knitted from the differently colored yarns. To avoid that, applicant feeds-two Q yarns at the so-called main feeding stationand' reverse plates there at plain areas, the additional yarn fed being of a, color and-type to match the auxiliary yarn and to reverse plate themainyarn. This makes it possibleto knit plain or depressed areas of one color, raised areas of a different color and to wrap with a still different color or colors as desired. Preferably the wrapping is done at the raised or face portions of the patterned fabric rather than at the so-called plain parts. That is not entirely essential and wrapping. may be done at the plain areas, although atthose areas, the wrap pattern would appear at those courses knitted at the main side only.
These and other features will .be more dis scription with respect to the accompanyingng- Fig. 2 is a small detail of connections applied to the control of the auxiliary yarn; j
Fig. 3 is a" plan of that.mechanismillustrated in Fig. l; I
anism illustrated in Fig. 3, also more of chine extending. to the right handside Fig. 5 is an elevation at the left side of the ma:
chine showing. the wrap drive, and certain cam raise pattern;
. Fig. 4 is a plan view showing part of the met-a the ma- .nism of Fig. 18; H I v Figs. 20, 21 and22 show features of the auxilcontrol means operable from a drum on the main cam shaft; 1
Fig. 6 is'a plan showing'certain details of control for the auxiliary ya'rnfed and the binder for that yarn; I
Fig. 7 is an elevation showing that same mechanism; 1
Fig. 8 is a detailed view of the auxiliary yarn feedingfingerand slide withinwhich that finger works;
Fig.9 is a section through part ofthe frame of the machineshowing drums on the left hand end of the cam shaft and levers on those drums; V
Fig. 10 is a, detail view of the second lever from the end and of'the cams which affect that lever; Fig. 11 is a similar'viewof the third lever from the end;
l2 isa detail-ofj'thepattem drum, plungers, and-of a sinker and jack such as arle employed for reverse plating at the main feeding side? i p Fig. 13 is edema in the pattern druin and certai leversat the back" of the machine which are employed to select needles; for knitting the Fig. leis a detailview of the wrap yarn pat terning mea'ns;
Fig. 15 is a plan 'view of the pattern meansfor controlling knitting of the raised pattern fabric;
Fig. 16 isadetail of this mechanism showing controlfor knittinga l til. simulatedribi top;
Fig. l'lis a detailof the mechanism of Figs. 13 and 15, but showing retiming means;
. ig, 18. is,.a" detail view of the stitch m. and
parts applying thereto at the auxiliary feed;
Fig. 19 is an elevational view ofthe mecha- Fig. 23 'isa section shbwingthe support for the raised fabric pattern drum, part of the ratcheting means for that drum and the mechanism' for withdrawing it from action;
Fig. 24 is a partial sectional view through Fig.
23 and showing other features ofthe: mechanism of that figure; i
Fig. 25 is a. detail view of lever which withdrawsfrom actionthe drum mentioned with respect to Figs. 23 and'24; v
Fig. 26' is a developed view of the pattern drum at the extreme left hand end of the knitting cam shaft; l
Fig.27'is-a developedwiew'of the next drum affected by cams on that shaft and showing two rows of cams which apply to the auxiliary yarn feed and the binder control;
Fig. 28 is a detail of two of the cams on the drum shown in Fig. 27;
Fig. 29 is a diagrammatic view of cams which affect needle andjack butts; and
Fig. 30 is a conventional illustration of a fabric produced on the machine herein described; Fig. 31 is a plan view of a detail of the drum racking stop means; and I Fig. 32 is an elevation of the mechanism shown in Fig. 31.
Now referring to the figures of the drawings, one specific form of the invention will be de-" scribed. The machine is of aty|pe adapted to knit seamless hosiery and has a cylinder I rotatable in i the usual way upon a circular base 2. This cylinder has the usual latch needles and sinkers functioning with those needles, said needles being carried in a sinker head3 above which. is a sinker cam cap 4. A carrier ring 5 is pivoted at 6 on a post 1. Asin Fig.- 3, this carrier ring has a plurality of yarn feeding levers 8 pivoted in an extension 9 to the carrier ring and these yarn feeding levers are controlled tofeed and change yarns as in United States Patent No. 933,443..
Upon a cam'plate lfland-at the right hand side of the machine, are mounted the usual needle cams such as effect stitch drawing in this type of machine. Those cams are not shown in detail, but will be described more specifically with reference to Fig. 29.
-Wrap yarns are to be fed to certain selected needles by mechanism such as illustrated ,and described in United States Patent #1.702,608 and in this case the only part of that mechanism be moved away from the cylinde when no wrap pattern is to be formed.
The drum 2 has a plurality of discs fixed thereto, each of said discs having frangible butts 36, it being understood that these butts may be broken off according to any desired pattern. All of the butts are shown intact here since this matter of setting up a pattern is one which a skilled knitter or knitting machine can do. The drum is ratcheted periodically by mechaand a link 39. The link 39 connects to other mechanism all of which is shown here since it is adequately described in the patent to which ref- 1 erence is made.
A series of plungers 40 (shown more clearly in Fig- 14) and guided within a bracket generally shown is a wrap yarn feeding spindle ll, disc I2 and eyelets l3 through which the several wrap yarns are threaded-and fed. At the side of the circular base 2 a spindle I4 is rotatable and is driven-by gears l5 and I6, Fig. 5-, and through other gearing .(not shown) serves to rotate the spindle I lat a 1 x 1 ratio with the needle cylinder. Spindle i4 is guided in a bearing in bracket, l1, said bracket extending upwardly as a post Iilto support other elements of the wrap mechanism all as shown in the patent just above mentioned. 1 v
The circular base 2,.is attached at the upper side of the usual frame l9, Fig. 5,- and that-frame has rotatable in suitable bearings a main cam shaft 26 upon which are drums 2| and 22, Fig.
9 This cam ,shtftmakes one .revolution for each knitted stocking produced and thefusual cams along with other cams later to. be described, control the various functions of the machine. The only cams necessarily described here are those which affect feeding of-the'auxiliary yarn also control the pattern means at. the back of the machine for the raised part of the fabric. e
At the front of the circular base 2 is attached a bracket 23 and that bracket carries a pattern drum 24 rotatable on a spindle 25. The spindle 25 is really supported within an arm 26 pivoted on the bracket at 21 and guided at its other end by a shoulder screw 28 extended through a slot 29. A spring 30 is attached to the bracket and to the arm 26 and serves to pull that arm inwardly against an adjustable stop screw 3|. A lever 32 pivots at 33 and by means of a connecting lever 34 and, link 35, the drum 24 may indicated by numeral 4!, are contacted by the butts 36 and are moved inwardly or outwardly to and from the needle cylinder in accordance with the set up of the pattern. These plungers engage selecting butts such as the butt 42 or 43, Fig. 14, on jacks 44 and serve to select those jacks by imparting a short vertical movement thereto. Each jack has a master butt 45 the purpose of which will be described more fully as the disclosure progresses. The cam-ended plunger 46 works upon a butt at the upper end of one-half of the jacks (those at the sole side of the machine) and make it possible to pattern in the instep while making the sole of the stocking plain. This cam is drawn inwardly by a spring 41 and is moved out by a lever 48 pivoted at 49 and which hooks against a projection 50 at about the central part of the plunger. Link 48 connects to the lever 48 and controls knitting an unpatterned sole from suitable cams (not shown).
At; the back of the machine and on the left handside, mechanism is provided by means of which the needle jacks areselected to produce a I x 1 simulated rib top and also for the purpose of producing the raised fabric pattern throughout the leg and foot or other desired areas of a fabric. That jack selection is brought about by a pattern a second group of levers 51, these levers having their inner ends so constructed as to engage the butts 42 to raise jacks 44 as they are selected preparatory to causing their needles to take the auxiliary yarn. Upon being selected, the-jacks move vertically until their master butts 45 contact a master cam 58 whereupon the needles are raised to clearing and yarn taking height. After being raised up cam 58, the butts 45 engage and are drawn down by a cam 59, these cams beingbetter shown in a diagrammatic view, Figs. 19 and 29. 1
"The drum 5| and mechanism appurtenant thereto are mounted on a swingin bar 60, Figs. 23and 24, that bar pivoting at 6| and being urged by a spring 62 in a direction to engage the toe ends of the levers 53. A stop screw 64 is adjustable and limits movement of the bar 50 as the drum;moves to active position. To move that Springs 56' no. matter what the position ofthe drum.
As shown in Figs. 1,3, 15 and 1:6,the topmost. one of the levers 53 is specially eontrolledby a To drum outwardly. a bell, crank lev vlii conn cted to a link 5 is actu tedas shownin Figs; 23, 24; and 2t and by means of connectins nkaee and cams on the drum 2| all as will '!be described in detail in: a a er para raph. "The. drum '5! rtates on. a spindle 6]. and. is 'ratcheted by means of pawls fi a d fiil. l and 17, those pawls being pivoted at "I. 011 a; plate ll having armsn and 13. Springs 14, one for each pawl; maintain them in contact with .teeth 75 on the ratchet wheel lfi. a l
A link 'l'l connects to the arm :72 and then ex-. tends across connecting to a bell crank lever 18,- Fig. 4, one arm of which engages behind the lever 19. This lever "79'is contacted by certain cams on the 104-tooth gear and is thereby periodically moved to and fro to impart ratcheting movement to the front drum later to be described;
that same motion being availed of to ratchet this drum 5|. The lever 19 and its motion from the 10.4-tooth gear are fully described in United States Patent #2211385. i j
This drum 5| is retimed-at appropriate-intervals by mechanism shown in Figs. 3, 15 and 17. The ratchet wheel has one short tooth 88 and the pawls 68 and 68 which are normally urged inwardly against the ratchet wheel teeth may be drawn outwardly bymean's of a detent 8| connected to a bent bracket 82. The detent 8| con tacts pins 83 and 84, the pin 83 projecting from the top pawl 69 and the'pintl from the lower pawl 68.
During the knitting of the heel; drum" 5| is stopped entirely and does not start again until the I heel is finished and the foot commences. At that time both paWlS are completely out of contact with ratchet wheel teeth'as shown in Fig. 15, and also, the t e nem is p ed y eans shownin-Figs. B1an'd32.
In these figures the lever 19 is shownin practioally i s t rm st iti n and e the atche ng o m 5' nd lso drum 20, sto be stopped, a'bell crank lever 19 pivoted atllfl comes into. the position ojthese Figs. 31 and 32, holding lever 19 outwardly so th t it is not affected by the cam or cams which actuate it. "A lin 13" onnects to o l. rank lover. f a d to a se nd be loranls lever 82 w ich. d ri es m mont through a d p nding-l o r d The in tend do n to othormechan sm ontrol d by ams on o e oft m in am drums and wh ch initiates. the t n of the above men n d a chetin moti n at t e proper t s .Durinskn t ins he toe. of a st ck n the. drum so that the fail o en a e the shor tooth 80. hat m ans a the dr m. wil beretim d. as it s Iatolict d p to the tooth 80 andwill notistart a a n u til the pawls; are allowed to enga e to he iullest depth otthete th. c a
The bracket; 82 is fixed to. extension 85 which projects from the rearpart or the circular. base. Those parts are stationary. The pawls are withe drawn when the bar fill. is moved to more the drum away from its. active position. Of course the ratchet movement of plate H takes bell crank lever 86 pivoted at 81 and connected by a link 88 to the end of that topmost lever. This bell crank lever 86 is connected at its other end to a depending link; 89 which extends downwardly to mechanism hereinafter to be described and by 55 lsnio edawavtrem he nawls on y larencueh means oi which properly timed partedtdthetoplavefii. M j.
Now r-reierringto Fi s. 1. 3, 18 and 19. an auxil iary titchcam an is fixed to the and of a lever riveted at 92 cnan. extension 93 to the cam plate 1.0.. This lever extends outwardly from the pivot .93. and. by means of a spring fi l/the lever iaswungin sucha direction that stitch cam 80. will normally be held inwardly against theneedile cylinder. l
4 lever. 85. pivotedat 96 eittcnds upward yi at .3] and then horizontally. attlhhaving com nected thereto an angulaii'piece 5.9 "the end MB, of whichfi's hooked-aboutlcveril A link Hll connec s to the outerend of lever 95,. and whenever that link isdrawnxdownwardly. the hook end l M willcnease and rew lever '9! and stitch-cam 9.0 out away fromtnecrlinder toa position in which the camwill not contaotlany of the butts.
Linkqm extends downw rd y and. connects Ito-a leve orarm afieoted by certa n c ms-on drum 2!; Now referrinsflto Fig 13,5, ,510 andll, )th drum. cams. thereon and connections tatertain links above mentioned are shown. ,InFigs. 5' anal the outermost lever 10 pivoted at I03 athebraoket 1.04 has a toe miwbicb en a es won a row, of cams includimi', the. cams-I08 and IQL; The lev r J02 is connected to the lower :end of ;.link ,89. A sp ng. I08 connects to the lever log-and to a .fix dpa-rtoftbetmachine and maintains the toe 85 incontact with one or. thecam o downw rdly onthecam l ,Wbenever E he -toe of the leverrides on ione of the cams 805 or the link 89 lspulleddownwaridlyondtho opmost lever 53 outwardly. thereby projecting the ppropriate plun er inwardly asai stthe cylinder to cngaeeand select 'iack's. The spring I09 is connected to link. 89 .and to the end of lever I02 and allows the link to elongate a xits lower end slide in theclevis-l my. V l Thesecondlever-l-H hasa oe llz which bears uponoams .ll3andll4 onthev drum -2l.--This.
lever M is offset to the side and connects to the lower end of. the link 65.111183} is the link. which.
connects to lever tomove the drum SI. for
makinga pl in sole and. alscxfor t ppin the shown inthe relative positions which they occupy;
Cam 06 lifts the toe of lever fill-and pushes the place stop selecting plunger inwardly t make 1 x 1 type rib construction at the beginning *of"the' stockingtop; that cam controls throughout the to. a point Where the 1 x I construction again commences. Cams H3 and H raised pattern are effective in the toe and throughoutthe start of thetop-,*and lnthe heel,
respectively. After going out ofthe foot, the
iznoulsesareixm which govern the tanned drum 5I is moved away from'l'evers 5'3 so that no raised pattern effect is possibleuntil again starting in the leg. Of course, the top "plunger controlled by the first part of cam- I06 causes 1 x -1 raised fabric t be knitted just prior to'=starting in* the leg. Cam I I4 along with cam I06 prevents any'type of raised pattern efi'ect inthe heel. According to the present set up 1 x" 1 typesimulated rib is knitted" throughout the sole of the stocking rather than aplain knit sole. *The cams I I8 and H9 which affect the position of auxiliary stitch cam 90 pull that cam out in the toe and in' the heel. I v
I 'Now, referring to Figs- 4 and 12, the drum controls plating and reverse plating through certain mechanismin the sinker cam cap 4. This drum I has'a series of discs, each of which has a, plurality of butts I2I' which are removable and whereby-a pattern is set up on the drum for controlling the position of a series of plungers' I22. These plungers I22 contact butts on jacks I23, and those jacks'; in turn, control the position of sinkers I 24, all as described in'United States-Patent #1052377 I v "The plungers I22 are slidablein abracket I25 which is attached to the circular base of the machine, and each of these plungers has a spring I26 by means of which it is' held outwardly away from the butts on jacks I23 except as moved inwardly bythe appropriate discs on'drum l20. The drum I20 is rotatable on a movable bar I21, that said bar being capable of swinging about the pivot point I28 and having an elongated 'arrn I29 to which" is attached a lever I30. This lever I30 con nects through to certain controlling mear'iswhefe bythe drummay be moved outwardly and the plated and reverse plated control thereby render ed'inactive. f
The drum I20 is racked periodically by pawls generally indicated by numeral I3I and which are spring pressed by springs I32 to engage a ratchet 'wheel I33 all as d'escribedin the patent just'ab'ove mentioned; The mechanism for that purpose which is illustrated; here includes the movable lever'19 before referred to, a connecting link I34, thepawls I3I and ratchet wheel I33. Retiming'mechanismis'also provided, but is not shown here since the same is described in United States Patent #2,052,7'77 and in other patents.
'Now referring to Figs. 6, 7; 8'and9, the auxiliary yarn designated by a is fed through a yarn feeding finger I35' which 'sli des' vertically in a small cros'shead-136. This finger I35 is moved by a lever I31 pivotedat I38 and connected by means of a depending link I 39 to certain cams onlthescamdrum 22. Thislink I39 is'guided in a bracket' I'40 and =is-engagedby cams I4I and I 42, F'ig; 27.. The link I39 is forked at its upper end to'jengage about'the outer end of the lever I31 and is alsovforked' at the inner end to engage a pin-I43. I. a l
'In Figs. '20, 21 and 22,'a yarn binder for the auxiliary yarn is mounted on a bracket I44 and includes binder" elements "I45 and I 46; The element I45 is movable and is held upwardly or in closed-position-by means of a spring I41 except when opened bymovement' 'of lever I48 also pivoted at I'38.-- The lever I48-a1s0 projects to the other side of the pivoted end and is engaged by the, forked-end of a second'vertically disposed link I49. That link projects downwardlyrto beguided bythe element I40and contacts certain cuts'that yarn and binds it in aknown manner. The fixed binder-element I46 of the binder is pressed by means of a spring I53 against the movable blade I45. V v
Spring I41 maintains the cutter and binder in closed position and forces the link I49 downward- 13/ against the cams on the drum. A spring I54 connects to the outer end of lever I31 and to a fixed point'on the supporting bracket and likewise, moves that lever' I31 and the bar I39 so as to withdrawn the auxiliary yarn from feeding position and maintain the bar down against its cams on the drum. All of this mechanism is supported on a bracket I55 which is in turn secure The purpose of this is to make sure that there will be no eyelet when the yarn goes in and when it comes out, the firstbeing at the: close 0f-the-heel and the second at the'start of the toe The cams which actuate the binder and cutter function as follows: Cam I50 opens vthebinder and cutter to allow the auxiliary yarn to be introduced to'the needles at the start of the top. Cam I5I opens that binder and cutter so as to take the auxiliary yarn and-cut and clamp it after finishing the leg and upon entering the heel of the stocking. Thenatthe start ofthe foot cam I 52 causes the cutter and binderto open so that the yarn will;be,introducedto the needlesthen holds thoseelements open so that upon; completion of theheel, theyarn will be taken as shown in Fig.22 and cut and clamped. Referring to Fig. 29, cams, feeding ,means,
pathways of needle hooks, needle butts and jack butts are shown. The needles I50 have butts I59 and at the left of the figure, those butts are moving along in'the pathway I60 as they are guided by the raise cam IBI. Jacks are leveled as the master butts 45 are raised above cam, I62.
: Then as those jacksare selected corresponding needles are raised to take the auxiliary 'yarn, such selecting being accomplished as some one of the butts 42 or 43 engages a1 selecting'plunger 51.
Thereafter jacks are immediately moved down wardly by cam 59 whilestitch cam 90 draws all needles down, the yarn abeing knitted by those needles which took it in their hooks. It is floated behind other needles. The level 154 for the needle butts is such that'latches are cleared preparatory to taking the new yarn.
After passing the auxiliary feeding and'knitting point needle butts are again raised to a point I60 by raise cam I65. At the plungers 40, a second selection takes place and master cam I66 will raise selected jacks so that J-corresponding' needles are-elevated to a point where butts pass along in pathway I61.
.That is a wrap level and the hooks. of those needles reach the pathway I68 taking wrap yarn w fed. by eyelets such as the eyelet I3 in disc l2. Preparatory tobeing selected a cam I69 After this preliminary selecting movement, master butts are engaged by cams 58 and the levels jacks and the topinstep earn: 110 were I needle butts providing some of those butts rfiiht be riding above cam I65. The earn l'lfl ex'terids horizontally atI'II and then terminates in a earn point I'IZ the latter acting to move was needles down so that they will first engage the front stitch cam I73 to be raised slightly before pass ing under "center guard cam m. e ndIF selected needles ride along above cam I15 and engage the front stitch cam thereby being raised to clear their latches The needles selected to be wrapped would have cleared theirlatches prior to being wrapped. All needles take the main yarn or yarns m fed by one of the main yarn levels 8. needles are drawn down as their butts move down the rear stitch cam I16. I The center raise camJIIIII Iperfor'ms the usual function. I All jacks are lowered by cam I15. I
I ii knitting fabric according to the method and with the machine herein described, two yarns are preferably fed at the main feeding station and one of those yarns is so selected as to match in color arid appearance the auxiliary yarn a.
At'tlie' plair'i areas, so-called that matching yarn After taking that yarn, those described with respect toFig. 12 provides for I fabric is illustrated, and in which the knitting I I ruiistfrom the bottom to the top of the figure; I course I18 is knittedat the auxiliary side and fromthe yarn a. In the so-called raisedor face areas-,that yarn is knitted at alternate wales' and floatsas at I'I9 behind intermediate wales. :IThe
wales I80, I8I, I82, I83 and I84 are so knitted as to constitute a raised or face area-1 of the fabric. At the next course I85, and at raised areas,
' the" maiiiyarn m is knitted at 'each W'ale and-is plated over a second yarn knittedat the main feeding station and which matchesw Iyarma inso far 'as color or appearance goes. That plating yarri is designated as yarn a and is ofabo'utthe samesiz'e as yarn m so that when reverseplating takes place the yarn m will be covered orhiddeh. I At the wales I86, I81 and I88, aIso-calIdIplain area which appears at alower level as compared to the face area, is formed by knittingIyarnsw at each alternatecturse and yarns m and a' at intermediate courses. At these areas the yarn w reverse plates so as to cover Ithe Iyarn' m. Sir-"ice the yarn's m and a are of contrasting colors; the raises areasand plain areas appeal of those di-fier'ent colors and the fact that yam a is; Knitted in the raised area, and is of adiifei nt color from does not detract from the clear, single colored appearance of those areas since yamd is Very line and is drawn into rather tight stitches; It also floats in baclc of theiwaies ram I82 and I34 and pushes those Wales to the from giving a ribbed appearance and; concealing the wares m and use, I
The general attern snows iIithi's I Fig. 30 1s I Time is sweetie can (set but seer 43; Fig'.-1 '-)"at; use I I a: auklfiarjfside'.
that or a chain stitch or 'lifil type of pattern and raised patterned areas at tlieright or sitiiilar exeiat they are stepped up a few courses so that there a diagonar connecting-line rum nine: upwardly iron-i fight to left through the central plaiii-seetiens I TI Ii I A wrap yarn-Ilfl wrap id the' wa-leII 90 and thh erssses over wrapping in every I other Wale tothe ware-islet thelett-handside. This was yazri'is o'f a third c'olorarid is wrapped so as to stand out at the face wales crane raised areas. Gt course this is only illustrative of one-partieula'r and there are inanyother pat ternsk arid variations or Wrap striping designs iibssiblegdi': being used: It is also trk'ie' thatthe shape or the raised and plain areasmay beva-ried in contour orwin sizeythat illustrated here bein merelyjone Ipossible-Ipattermi I j bi ereiiea I a I I in iineesediment the yb lw des nema s a t o t etpm e s e as ar l o uttufned I-v'v elt or thelike is first produced eeseieen s mis n e a e I elated 'b' tii'p or of accordion type fabric. At that time Ith'fto of lever; I I7? rides up on earn it issuing th'jjto'p lifer SlIFig. a direction toipn'sh the topmost pioneer 51. That causes ey er atiier nee le to Be Brought up attire mar' i fee to take yarn. data at the" reed m tt emission of rte-es ms lee is started and 't in r ises pattern, can we still cont-Hides to control thro'ti'li the toe plunger 51 that needle will always beraisecr p riewever, at that tinfe, the second lever in cross from the cam I r31 anewing'tne rum III to nfioveititdpositidii s'o"tliat the pattersser t me. that arem may central the remainder orthe pimleersj-e; hen the raised areas will we fiiade at points as alternate needles take yarn a while at plain areasth patiiittiiieyarna at 'afih were in the e plain areasgar arseat are knitting so senses the eflifidfi neither er sees m ar H9 sis-sense: the shire lever I' It. I I
= icetri or" the tee can m causes the arn e to be reagtereii'g assessed i i'eretorcea-tesr nit speififie biridr" test time as er-asses the for seems-ea I Aster serene are; le apes stares-g riel- I seas 1 e was dress nest n w deceit Itl wiii-ae'aifiteen the spices as receive the withdrawn yarn. Then series: are seer the eastern driiirr s1 is moved away trees the levers 5st accomplished I es the-sei-ie lever m is raised car's I14 Elclitiifig of diam 5r their discontinued trircucnoee Heel enamel At use the th rd rates 1 I15 is raised s' sans I suii'eves fFGfil ylii-idr" ts active positiem The leverm2 is ais d' urdiieea meme-am mand the" top pliin'g'f er arswss'e tnatiatksareiint affected. I I
' "At-the close ortrieriee'i and start r the rest; lever mars se sm- 5y" ears rur and-tee foot is wire setterstastes But was s r nilkdihifithe sore; rile pattern laito" that-she side" ass mes-warrants. suite at to a and diseases
US532589A 1943-02-06 1944-04-25 Knitting machine Expired - Lifetime US2374538A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1237254B (en) * 1959-04-02 1967-03-23 Wildt Mellor Bromley Ltd Two-system double cylinder circular knitting machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1237254B (en) * 1959-04-02 1967-03-23 Wildt Mellor Bromley Ltd Two-system double cylinder circular knitting machine

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