US952774A - Striping-pattern device for knitting-machines. - Google Patents

Description

H. H. WEST? STBIPING PATTERN DEVICE FOR KNITTING MACHINES.

6 SHEETS-SHEET 1.

Z N 'APPLIOATION FILED 00'r.12,19os. v N r 952,774. Patented Mar. 22, 1910.

{a a V e e l @L 3 /a /9 f4 a? wi/tvmoow attoznu o v .11. H. WEST. I 'STEIPING PATTERN DEVICE FOR KNITTING MACHINES.

APPLICATION FILED 0OT.'12, 1908. v 952,774. I Patented Mar. 22, 1910.

6 SHEETS-8EEET 2.

awo en/e1 9 H. H. WEST. STRIPING PATTERN DEVICE FOR KNITTING MACHINES.

APPLICATION FILED OUT. 12, 1908. 952,"?"7Q Patented M21322, 1910.

6 SHEETS-SHEET 3.

Jazz

I lm/[macaw H. H. WEST. STRIPING PATTERN DEVICE FOR KNITTING MACHINES.

APPLICATION FILED 0OT.12,1908. 952,774, Patented Mar.22,1910. I e SHEETS-SHEET 4.

' I'i 5 lli atto'mwwo Patented Mar. 22, 1910.

6 SHEETSSHEET 5.

Gum/nu e H. H. WEST. STRIPING PATTERN DEVICE FOR KNITTING MAGHINBS.

APPLIOATION FILED OUT. 12, 1908.

q/m/h woow H. H. WEST. STRIPING PATTERN DEVICE FOR KNITTING MACHINES.

APPLIORTION FILED OCT. 12, 1.908.

Patented Mar. 22, 1910.

6$HEETSSHEET 6.

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attc wuu o HARRY -.H.' WEST, OF PLYMOUTH, PENNSYLVAFTIAL Application filed-October *12, 1908. Serial No. 457,380;

To all whom it may concern:

Be it known that I, HARRY H. \VEs'r, a

citizen of the United States, residing at" 1 Plymouth, in the county of Luzerne .and

State of Pennsylvania, have invented certain new and useful Improvements in Striping- Pattern Devicesf or KnittingMachines; and I do declare the following. to be a full, clear, and exact description of the invention, such as will enable-others skilled in the art to which it appertains to make and use the same. 1

This invention relates to improvements in striping mechanism for circular knitting machines of the type illustrated in the draw ings an'd 'known as the Standard and w l 1ich is shown in one form in Patent No. 538,518 to Houseman, dated April 30, 1895.

One object of the invention is to provide a simple and etiicient mechanlsm by means of whlch the thread can be accurately changed I to obtain any desired pattern.

Another object is to provide means for quickly effecting the changes or variations of the thread changer with a minimum possibility of error in adjusting the machine for use with any'desired pattern.

Another object is to provide -means for using any desired pattern-for striping the fabric, whether the fabric be plain or fancy.

With these and other objects in view, the lnvention oons1sts of certain novelfeatures of construction, combination and arrange- Fig. 5 is a detailend elevation thereof showment of parts, as will be more fully ,described and particularly pointed out in the appended claims,

In the accomnanymg drawings, Figure 1 is a front elevation of the machine, with the heel forming mechanism indicated diagrammatically, Fig. 2 is a vertical sectional view thereof with the parts set in position for operation when forming the leg or foot of the hose, Fig. 3 is a similar view with the parts in operative position for forming the heel or toe, Fig. F is a horizontal sectional'view,

ing the feed mechanism in position when the machine is working onthe leg, Fig. 6 is a' similar view showing the feeding mechanism when the machine is forming the heel or toe, Fig. 7 is a horizontal sectional view taken on the line 77 of Fig. 5, Fig. 8 is a detail sectional view on an enlarged scale taken on the line 8-8 of Fig. 5, Fig. 9 is a detail horizontal sectional view taken through the ratchet lever (shown in detail in the pattern rings detached, Fig. 14 is a. detail perspective view of one of the operating levers, Fig. 15 isa similar view of the clutch operating levers, Fig. 16 is a detail perspective view of the stop pawl, Fig. 17 is a fragmentary sectional view through the forward end of the shaft carrying the clutch, Fig. 18 v is a detail side elevation of one of the cams used in connection with the operation of the -heel forming mechanism, Fig. 19 is a fragmentary sectional view of the notched operating bar, Fig. 20 is a sectional fragmentary perspective view of a portion of the pattern ring, Fig. 21 is a central vertical sectional view through the depending bracket and of the pattern wheel, Fig. 22 is a fragmentary rear elevation thereof 'with parts of' the bracket in-section, Fig. 23 is a detail side elevation of the L-shaped pattern wheel engaging lever, Fig. 24 is a detail horizontal sectional view taken on the line 21-24: of Fig. 23, Fig. 25 is a plan view of the depending bracket and'adjacent parts, Fig. 26 is a detail vertical sectional view taken on the line 2626 of Fig. 25, and Fig. 27 is a detail plan view of the plate which supports tail side elevation of the prior art machine to which this invention is applied.

In the embodiment illustrated, 1 indicates the frameof a knitting machine which may be of any desired construction, but is'preferably of the type used with the machine known as the Standard, on the market 538,518 to Houseman. Journaled in one of the uprights of this frame and in a bracket 1 is a main driving shaft 2, carrying fixed and loose pulleys 3 and 4, respectively, and having a handle 5 on its outer end, and a bevel pinion 6 on its inner end adapted to mesh with a bevel gear 7, con.- nected with the main driving gear 8 of the machine. Keyed to this driving shaft 2 is agea'r wheel 9, which meshes with a similar wheel 10, mounted on an operating shaft 11 journaled in'the frame 7 and in a bracket 72 mounted on the frame 7 (see Figs. 1 and -1). A pitman 12 is pivoted at one end to the gear wheel 10 and has a pawl 13 pivoted the clutch operating levers. Fig. 28 is a de and shown in one form in Patent No.

Specification of Letters Patent. M51. 22,

sectional viewtaken on the line 12-12 of Fig. 8, Fig. 13 is a front elevation of one of' Lea - toothed periphery of the wheel 26.

pawl. (See Figs. 5 and 6.

it its free .end a 'ndi'held in operative position by means of av spring 14, which is riv eted atone end to" the pitman and bears at its other end on the up er edge-of said This pitman 12 and pawl 13 are pivotally connected by a bolt 12 with the freeend of a loosely mounted supporting link 16.

Fi'xed to the outer end of a shaft 15 journaled inbrackets 17 and 17 on two of the uprights of the frame 1 is a ratchet member 18, which is shown in detail in Fig. 11, and comprises a disk-like member having a hub 18 and a laterally extending slotted arm 19, and is provided with two oppositely disposed shouldersor teeth 20 and 21. The link16 is loosely mounted on the hub 18 of the member 18 as shown clearly in Fig 9. A depending rod 22 is secured at one end to the slotted arm of the member 18, and is adjustable in said slot by a bolt: and nut, as shown or by any other I suitable means. This rod 22-has a pawl 23 pivotally mounted on its lower end and is pivotally connected through the medium of a link24 to a shaft 25. The pawl 23 is loosely mounted on the pivot pin 22 which connects the rod 22 and link 24 outside of said link in position to engage a ratchet wheel 26, keyed to the forward end of the shaft 25. as is clearly shown in Figs.

nd 8.. The hub of this ratchet wheel 26 is cut away at diametrically opposite points, asshown at 27, (see Fig. 10,) for the reception of a key 28, which is fastened by means of a screw 28 to the shaft One end of the shaft is journaled 1n abearing 29 mounted on one of the uprights of the framel, and the other end in a bracket 39 hereinafter described. A set screw 30 extends through the bearing 29 and is designed to engage a sleeve 31 on the shaft 25 and lock said sleeve at any desired position relative to the bearing. This sleeve "31 has an enlarged laterallyextending annular'flange 32, the periphery of which is recessed at 33,to form a shoulder 34, which engages and limits the movement of the pawl 23 (see Figs. 5 and .6), the flange extending' at other points beyond' the The pawl 23 is held in engagement with the periphery of the annular enlargement or flange 32 by means ofa spring 35, hence when it drops into recess 33 it can only engage one tooth at a timeof the ratchet wheel 26 toturn the shaft 25 for a purpose to be described.

Secured to theinnerend of the shaft 25 is a pinion v36, which meshes with a largegear 'Wheel 37, mounted in a depending bracket 38, bolted, as shown in Figs. 1, 2

and 3, to the machine frame 1. As shown.

in Figs. 1 and 22, the bracket 38 is provided with an apertu'red extension 39, for the reception of the inner end of the shaft and a stop off arm 40. which latter is designed for automatically throwing the machine out of operation,'as will be hereinafter described.

The large gear wheel 37 which carries the pattern ring 44 is mounted on a pivot bolt- 41 carried by the lower end of the depending bracket 38 (see Fig.21). On the outer end of the hub of this gear wheel 37 surrounding the pivot bolt'41 is a suitable washer-42, composed of fiber or similar material which is clamped to the wheel hub by means of a plate 43, which is screwed to the pivot bolt 41 (see Fig. '21). The pattern ring 44 is removably mounted on one side of the gear 37 by means of screws 37 and is provided with anaperture 45, adapted to engage a pin 46, mounted on'the wheel 37, and on its outer face with spaced rollers 44 and 44", for a purpose to be described.

From the above described construction, it will be evident-that the pattern ring may be easily removed from the wheel 37 by unscrewing the screws 37 and a ring bearing .a

different pattern substituted therefor if desired. This patternringiis provided on its periphery with a plurality of notches or recesses of different lengths and depths, which are adapted to control the ordinary yarn changing controllers which have not been shown or described in detail as they form no part of the present invention. These recesses are formed in as many depths as there are colors of yarn to be used,.three being shown in the present instance. The pattern ring 44 and substituting another, and said rings may be provided with any suitabledistinguishingmarks by which they may be known. The shallowest notch or recess shown in the periphery a of the pattern ring herein illustrated is designated as b,

.slot 55, adapted to receive a set screw 56,

to adjust the block on the lever 50. -This block 54 also carries a small set screw 57 which clamps the stud 49 thereon, and hence it will be seen that should the stud 49 become accidentally broken it can be easily replaced. The arm 58 of the L-shaped lever is preferably bent slightly outward and the free end thereof carries a set screw 59 adapted. to be engaged by a cam hereinafter described.

Pivotally connected to the free end of the 'can be quickly changed by removing one arm of thelever 50 is, a; pawl 61, which is also pivoted iiitermediately of itsendsto the bracket 72 carried'bythe frameLQ-A. I little play is provided where'thfar-mfiOj connects with the pawl 61. -Tlii's pawl. 61

which is illustrated in de tail i nFigi "lfi'ha's an upturned nose 62, designedto, engagefl notches 63 and 64, formed on-alateral extension of a link or'ba-r '65, one end offwhich is pivotally connected to a vertical bar or rod 66, carrying the yarn shifting cam 67, which cooperates with the thread carriers V It is to be understoodthat the yainyshiftingcam and the thread carriers form no art of this invention and hence they are illustrated diagrammatically only in Figs. 1 and 2. a

The lower end of the vertical .rod 66 is provided with a roller 68, adapted to operate upon an inclined surface 69, of a plate -70, which is secured as shown at 71, to the side of the bracket 72. Theinner end of the link '65, is pivotally connected as shown at 73, with an arm 74, fixed to and depending from the shaft 15. This shaft 15 is also provided with an adjustable collar 75 engaged by one end of aspring 7 6, coiled on the shaft 15 and having its other end fastened to an extension of the bearing bracket 17. This spring tends to move the arm 74 outwardly, and the tension thereof is regulated by the collar 7 5. I

A spring 77 is attached to the free end of the arm 58 of the L-shaped lever 50, and is designed to hold the stud 49 yieldably in engagement with the periphery of the pattern ring 44. A lever 7 8 is also fulcrumed .intermediately of its ends on the shaft 15 and is provided at one end with a hook 7 8 adapted to engage a. stud 7 9 on one side'of,

the vertical arm 66 connectedwith the yarn shifting cam. The other end of this lever 78 is provided with a set screw 80, which is adapted to engage a cam 81, fixed to a shaft 82 journaled in the frame 1. Two cams 83 and 84, the object of which will be hereinafter described, are also fixed to the shaft 82, the cam 83 being fixed to the shaft at a point about midway the length'thereof and constructed as shown in detail in Fig. 18, having a shoulder 83 formed on its periphery at one side thereof. The cam 84 is fixed to one end of the shaft 82 and is constructed as shown in F ig..6 with a peripheral extension or enlargement 84 extending aboutone half therearound, with oppoends of said extension 84 A lever 86, shown in detail in Fig. 14, is plvotally mounted at one end at 85 on the sitely disposed shoulders 84 and 84 at the side of the bracket 72, and is provided with a depending arm 87 for engagement by the rollers 44: and 44 on the pattern ring 44 for throwing in the heel and toe forming mechanism, to be described. This arm 87 is provided with an inclined slot 88, which isengaged by a set screw '89, which forms a :guide for theglever. This lever= 86 is pro I'vided at its.,-free 'end with an upwardly extending outwardly inclined arm-j 90, having a-- longitudinal slot therein adaptedto receive'the fonward endof a pawl 91 I'nounted on a crank arm 92, carriedbya drive shaft 93. Asegmentalraek 94 is mountedronthe shaft 93, andmesheswith a similarraok 95,

carried by an upright 96.. fiThis'upright 96- is provided with a crank197, whichfis cons nectedat its outer end to a pitman98', fasE- tened to the lower side of'the' bevel gear.

wheel 7 which meshes with the small pinion 6, carried by the shaft 2; p

A sliding sleeve orcam member 99 keyed on the inner end of the shaft 11, and' is preferably constructed as shown in detail in Fig. 17, in which a sleeve 100, is keyed to the shaft. 11. This sleeve is provided with a key 101, on whichthe member 99 is slidably mounted,,and by means of whichit is held against rotation. A cam. 99 is carried by the member 99, and is designed to to raise the stud 49 out of the recesses in'the pattern wheel. l

1A, plate 102, is bolted to the forward end of the bracket 38, as shown .at 102 and is provided with two arms or extensions as engage the set screw 59, carriedhy the end '58 of the L-shaped lever 50, and which operates said.lever at predetermined intervals I 103, which are apertured to provide bearings for ashaft 104, (see Fig. 15,) having two arms 105 and 106, mounted thereon and secured thereto by set screws 104.

The

upper end of the arm 105 is provided with a laterally extending forked fingerpiece'107,

adapted to engage a groove 89 provided in the sliding sleeve 99. The other arm 106 is forked at its free end as shownat 108, and is held in engagement with the lower end of the rod 0? which is operable to throw .in the heel forming mechanism, and which is clearly shown in Figs. 8, 9 andlO of Pat-' entNo. 538,518 of April 30, 1905, to Houseman, by means .of 'a spring 109, and when said mechanism is elevated the arm 106 is raised with it thereby rocking the shaft 10-l and causing the-arm 105 to shift the clutch tobe raised into the path of-the .pawl 13 to prevent its engagement with the -'shoulder 20 of the ratchet lever 18, whereby the yarn changing mechanism is thrown out, the pawl reciprocating on the cam bar above the meme changing mechanism'is again thrown into operation. dog 112, is pivotally'mounted at one end, of;. the frame 1 and-engages the shoulder 21 of the ratchet lever 18 to limit the forward-movement thereof, the spring lll being connected to said dog to hold it in; operative position. I

"To prevent. accidental movement of the pattern carrying wheel 37, a'suitable .brake mechanism. is provided which preferably consists of an e ongated plate 113, carrying two disks as 114, on the upper and lower ends thereof, and which are designed to engage the side of the pattern wheel 37 and are pressed in engagement therewith by means of screws 115 and 116, carried by the depending bracket 38. These screws are preferably provided with reducedends 117, which engage apertures in the yielding-plate 113, and are adapted to be adjusted in the bracket 38 to vary the pressure of the disks 114, against the wheel 37.

Referring more particularly to Fig. 2, -.which shows the parts. in position for forming the leg or foot, it will be observed that the gear wheel 37 carryingthe pattern ring 44 is rotated in the direction indicated by the arrow at and the stud 49, on the lever 50, travels normally upon the periphery of the pattern ring. For instance, assuming that the stud is in engagement with the notch 19 offthe pattern ring, the end of the lever 50, will be lowered sufficiently to elevate the nose 62,01? the pawl 61 and cause it to engage with the notch 63 ofthe bar or lever .65, on its forward movement, and when the stud '49 engages the deepest notch 0.0f the pattern ring the end 60 of the lever 50 will be depressed sufficiently to cause the nose 62 of the pawl 61 to engage the notch 64 of the bar 65 on its forward movement and limit the forward movement of said bar, and the rod-66 of the'shifting cam 67 will remain stationary on the incline 69 during the engagement of the nose 62 with the notch 63 a predetermined time and cause the shifting cam to be raised and the thread carriers to I be actuated. Itis to be understood that during the formation of the heel and toe,

' tlie'thread carrier 67 reciprocates and during the formation of the leg and foot it rofates. It is to be understood that the pawl 23 slides idly back over the ratchet teeth of the wheel 26 simultaneously with the for- 65 ward movement of the arm 74, the forward this'bar 110 to be lowered engage'said cam lever. whereby the yarn movement of ''said arm being dependent the gear 37 is rotated a sufficientf'distance to bring .the."roller 4'4", carried byfsaid ring intofposition for engagement with the lower end of the arm 87 of the lever 86, which is -the point at'which the heel is to be-formed.

This lever.. 'is raised upwardly by the said roller .44 causing the .pawl 91 carried by the arm 90 of said lever to be elevated into position and engage the shoulder 83 of the shaft turning cam 83, and this pawl being moved forward by'the driven shaft 93 forces said cam 83 around and turns the-shaft 82 a predetermined distance carrying with 'it the cams 81 and 84 and an eccentric 118 fixed thereto. Simultaneously with the turning of the eccentric 118*which elevates rod d and thus throws'into operation the heel forming mechanism, and the shifting of cam member 99, the cam 84 is turned to bring its enlargement .84 into engagement with one end of the cam bar 110 and thereby causing the other end of said bar 110 to rise into the path of the pawl13, as shown in upon. the position of the upturned nose 62 of the pawl 61. The knitting ofthe leg continues until the pattern ring 44,-carried by Fig. 6, causing said pawl 13 to slide idly on said cam bar 110 out of engagement with the cam lever 18 thereby stopping the motion of the shaft 25, carrying the pinion 36 and consequently the pattern wheel operated by said pinion remains stationary. The

turning of the eccentric 118 elevates the rod cl connected therewith, thereby causing the arm d on said rod 0? and shown in Fig. 4 of Patent No. 538,518 to Houseman, dated- April 30, 1895, to move the clutch B into engagement with .the reciprocating wheel B whereby the cam cylinder operating gear B and the cam cylinder are reciprocated for the formation of the-heel or toe, thereby setting the heel forming mechanism into operation. The lifting of-the rod al, also raises the forked end of arm 106 and turns the shaft 104 a partial revolution which moves the arm 105 a suiiicient distance to shift the cam member 99 and the cam 99 thereon out of the path of the screw stud 59 on the pattern controlling-lever 50., The turning of the cam 81 keyed to the shaft 82 brings it into the position shown in Fig. 3

with its enlargement 81 in engagement with the screw 80 carried by the end 79 of the I lever 78, whereby the front end 7 8v of said lever is elevated into engagement with the stud 7 9, thus-raising the rod 66 carrying the yarn shifting cam 67 and changing the yarn for the heel. It will be evident that by ad justing thescrew 80, the operator may vary the throw of the rod 66 to cause it to operate different thread carriers, for throwing in different colored yarns (see Fig.1). After the completion of the heel a lever 119 shown in Figs. 1 and 28 is actuated by certain drivenv shaft 93.

mechanism (not shown), and depresses the forward-end 120 of a link 121, which is pivotally mounted on the machine frame, as shown in Fig. hand which is connected through the medium of a link 122, with a finger bar 123 thus lowering the forward end of said bar 123, and enabling a pawl 124 which is carried" by an arm 125 to engage a ratchet wheel 126, fixed to the shaft 82 and turn said shaft a partial revolution, and the parts are returned to the initial positionshown in Figs. 1, 2 and 5, ready for the formation of the foot. As shown in Fig. 4, the arm 125 is connected by a link 127 to an arm 128, mounted on and actuated by the The yarn changing mechanism continues to operate during the knitting of. the foot until the pattern wheel t4 has been turned into position to bring the roller tl into engagement with the lower end of the arm 87 of the lever 86, which operates'to throw the mechanism above described into position for forming the toe, the same mechanism being used for forming the toe which is'used for forming the heel. This mechanism is clearly shown in detail in Figs. 9 and 10 of Patent No. 538,518, and

as it forms no part of this invention, further illustration is deemed unnecessary. After the toe has been formed a stop 40 on the pattern. wheel comes into contact with 'the stop bar 40, which operates the belt shifting mechanism to throw the belt onto the idle pulley at and throw the machine out of operation, This belt shifting mechanism does not form any part of this invention and is, therefore, illustrated diagrammatically only, and is not described in detail.

I claim as my invention:

1. In a; knitting machine, the combination of a yarn changer, a pattern therefor, a lever having a stud for normal engagement with the pattern, a suitably supported inclined element, a member connected with said yarn changer and operable on said inclined element, means operable by said pattern controlled lever for arresting the moveanent of said yarn changer member on said incline, and means for releasing said arresting means.

2. In a knittingmachine, the combination of a yarn changer, a pattern therefor, a lever having a stud for normal engagement "with the pattern, a suitably supported inclined element, a member connected with said yarn changer and operable on said inclined element, and means operable by said. pattern controlled lever for arresting said yarn changer member at various positions on said incline for throwing in different colored yarns.

3. In a knitting machine, the combination of a yarn changer, a pattern -therefor, an operating rod depending from said yarn changer and pivoted to oscillate, a rock shaft having an arm fixed thereto, a link connecting said arm with said operating rod, an incline arranged in the path of said operating rod, a pattern engaging lever, and means connected with said lever for arresting said yarn changer operating rod at a predetermined period at one of several positions on said incline. I

4t. In a knitting machine, the combination of a yarn changer, a pattern therefor, a pivoted operating rod depending from said yarn changer, means for oscillating said operating rod, 21 rock shaft having an arm fixed thereto, a link connecting said arm with said operating rod and having a plurality of notches arranged at different heights, an incline arranged in the path of said yarn changer operating rod, a pattern engaging lever, a pawl carried by said lever and operable thereby to engage one of the notches of said link to hold the yarn changer operating rod in a predetermined position on said incline.

In a knitting machine, the combination of ayarn changer, a pattern therefor having a plurality of recesses of different depths and lengths, an L-shaped lever fulcrumed intermediately of the ends of one of its arms and carrying a stud at the bend thereof arranged to normally engage said pattern and adapted to drop into the recesses thereof, a stop carried by said fulcrum arm, an operating rod for said yarn changer pivoted to swing laterally, means arranged in the path of said rod to elevate it into varying heights, means operable by said L- rod in contact withsaid elevating means for a predetermmed position, and means for engaging thestop on said L-shaped lever and 'shaped lever for arresting said operating I lift-the stud of said lever out of the recess in the pattern and thereby release said yarn changer operating rod.

6. In a knitting machine, the combination of a yarn changer, a pattern therefor, having a plurality of recesses of different depths and lengths, an Lshaped lever fulcrumed intermediately of the ends of one of its arms and carrying a stud at the bendthereof arranged to normally engage said pattern and adapted to drop into therecesses thereof, a stop carried by said fulcrum arm,v an operating rod for said yarn changer pivoted to swing laterally, means arranged in the path of said rod to elevate it into varying heights, means operable by said L-shapedlever for arresting said operating rod in contact with said elevating means in predetermined position, and a cam arranged for engaging the stop on said L-shaped lever at a predetermined time to lift the stud of said lever out of the recess of said pattern and thereby 1'6? lease said yarn changer operating rod.

7. In a knitting machine, the vombination of a yarn changer, apattern therefor having a plur'ality of recesses of different depths and lengths,- anv L-shaped lever fulcrumed intermediately of the ends of one of its arms and ca-rryinga detachable stud at the bend thereof arranged-to normally engage said pattern and adapted to drop into the recesses thereof, a stop carried by saidfulcrum arm, an operatin rod for said yarn changerzpivoted to. swing laterally, means arranged in the path of said rod to elevate it into varying heights, means operable by said L-shaped lever for arresting said operating rod in contact with said elevating means in predetermined position, and means for engaging the stop on said L-shaped lever to lift the stud of said lever out of the recess in the pattern andthereby release said yarn 1 changer operating rod."

"-8. In a knitting machine having automatic devices for'knitting circularly to form the leg andtfoot of'the stocking and reciprocally toform the heel and toe, the combination of'..a yarn changer, a pattern therefor,

an operating rod depending from said yarn 2 5' changer and pivoted 'to swing laterally, a rock shaft having an arm fixed thereto, a link connecting said arm with said operating rod, an incline arranged in the path of said rod, a pattern engaging lever, means yarn changer and-pivoted to swing laterally,

a laterally extending stud in said rod, a rock shaft having an arm fixed thereto, a link connecting said arm with said operating rod, an incline arranged in the path of said rod, a pattern engaging lever, means connected with said lever for arresting said operating rod in a predetermined position on said incline, a lever loosely mounted on said rock shaft, an element carried by said lever, means operable when the heel forming mechanism is thrown in to engage said element-and to cause said lever to engage the lateral stud on the yarn changer operating rod therebyraising said rod to operate said yarn changer and throw in a yarn desired for forming the heel.

l0. Ina knitting machine having automatic devices for knit-ting circularly to form the leg and'foot of the stocking and reciprocally to form the heel and toe, the combination of a yarn changer, a pattern therefor, an operating rod depending from said yarn changer and pivoted to swing laterally,

a laterally extending stud in said rod, a rock shaft'having an arm fixed lherelo, a link connecting said arm with said operating rod, an incline arranged in the path of said rod, a pattern engaging lever, means'connected with said lever for arresting said operating rod at various positions on said incline, a lever loosely mounted on said rock shaft, an adjustable element carried by said lever, and means operable when the heel forming mechanism is thrown in to engage said adjustable element andv cause the other end of said lever toqengage the lateral stud on the yarn changer operating rod thereby arresting said rod in position to'operate the-yarn changer and throwin a predetermined yarn or thread.

11. In a knitting machine having automatic devices for knitting circularly to form the leg and foot of the stocking and reciprocally'to form the heel and toe, the combination of a yarn changer, a pattern therefor,

an operating rod depending from said yarn changer and pivoted to swing laterally, a laterally extending studon said rod, 'a rock shaft having an arm fixed thereto, a link connecting said arm with said operating rod, an incline arranged in the path of said rod, a pattern engaging lever, a cam connected-with said lever for arresting said operating rod at various positions on said incline, a lever loosely mounted on said rock shaft, an element carried by said lever, means operable when the heel forming mechanism is thrown in to engage said element and to cause said lever to engage the lateral stud on the yarn change-r operating rod thereby raising said rod to operate said yarn changer and throw in a yarn desired for forming the heel.

12. In a knitting machine having automatic devices for knitting'circula-rly to form the leg and foot of the stocking and reciprocally to form the heel and toe, the combination of a yarnv changer, a pattern therefor, an operating rod depending 'from said yarn changer and pivoted to swing laterally, a

laterally extending stud on said rod, a rock shaft having an arm fixed thereto, a link. connecting said arm with said operating rod, an incline arranged in the path of said rod, a pattern engaging lever, means connected with said lever for arresting said operating rod at various positions on said incline, a lever loosely mounted on said rock shaft, a screw mounted in one end of said lever, an adjustable element carried by said lever, and a cam operable whenvthe heel forming mechanism is thrown in to engage said elementand cause the other end of said lever to engage the lateral stud on the yarn changer operating rod ,thereby arresting said rod to operate the yarn changer.

In a knitting machine, the combination of a yarn changer, an operating rod mittently operating said lever, means for os-" cillating said yarn changer operating rod,

' means arranged inthe path of said rod to elevate it into varyingpositions, and means controlled by said pattern for arresting said operating rod to hold it at a predetermined height for actuating the yarn changer.

14. In a knitting machine, the combination of ayarn changer, an immutable pattern ring provided with recesses in its' periphery of varying depths and lengths, an L-shaped lever pivoted atone of its ends and provided with a member in position to normally engage the pattern and to drop into said recesses, a cam arranged to intermittently engage said lever to raise the member carried thereby out of the pattern recesses,

and means for moving said cam out of position for engagement with said lever at pre determined intervals.

15. In a knitting machine having automatic devices for knittingcircularly to form the leg and foot of the stocking and recipe rocally to form the heel and toe, a yarn changer, a pattern, a lever connected at one end to hold the yarn changer in a desired position and provided with a depending member for engaging the pattern, a laterally movable cam for engaging the opposite end of said lever to move the depending member out of engagement with 'the pattern, and means for moving "said'cam out of engagement with said lever, said means being operable by the throwing in of th'e heel forming mechanism.

l6.' In a knitting'machine, the combination of an operating shaft, a sleeve keyed to slide thereon and provided with a cam, a

yarn changer, a pattern therefor, a lever arranged to engagesaid pattern and provided withmeans for holding said yarn changer at a predetermined period in a desired posi- I ,7

tion, one end of said lever being arranged in the normal path of said cam, a shaft having arms extending in opposite directions therefrom, one of said arms having means for engagement with said sleeve, and the other arm bein operable to rock said shaft and .throw sai out of engagement with the pattern controlled lever. A f

In testimony whereof I have hereunto set my hand in presence of two subscribingv wit-' nesses.

' HARRY H. WEST.- Witnesses THOMAS A. WEs'r, ISIDOR GLoN.

cam carried by the sleeve

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