US1462777A - Shoe-sewing machine - Google Patents

Description

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A A1F. E. vALovls SHOE SEWING MACHINE Filed July 14g-1919 s'sneets-sheet 1 a INVENTOR Webm E., M7026 V ATTORNEY July 24, 1923- F. E. vALols sHoE sEwI'NG MACHINE w w1. M:

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ATTORNEY s O L A V ,E. F.

July 24, 1923@ SHOE SEWING MCHINE Filed July 14, 1919 3 Sheets-Sheet, 5`

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wlTNE ssEs: v I yqk Patented July 1923.

UNITED; STATES PATENroFFIcI-L FLIX EMILE VALOIS, OF. BRIDGEPORT, CONNECTICUT, -ASSIG-NOR T HAMEL SHOE MACHINERY COMPANY, A CORPORATION OF MASSACHUSETTS.

- SHOE-SEWING Maca-INE.

appiiea'cimi filed July 14, .1919. serial No.l 31o,718.

To aZZ wtmzt-nmy concern:

Be it knowm hat I, FLIX E. VALois, a

citizenpf the United States, residing at Bridgeport, in the county of Fairfield and State of Connecticut, have invented certain new 'and useful Improvements in Shoe-Sewing Machines, of which the following is a specification, reference beinghadtherein to the accompanying drawings.

This invention relates-to sewing machines and more particularly to chain stitch shoe sewing machines Iof thattype which employ a curved, hook needle and awaxed thread and areused for sewing the insear'ns of welt shoes, or forsewing the sole to the upper of.

turn shoes.

The needles employed in machines of this type are usually provided with a barb or vhooleiipon one side having leading therefrom a spiral. groove passing :around thel back of the needleand terminating near the point thereof at the forward side. .In the operation of such machines the needle is thrust forwardly through thef'niaterial of.

the shoe and the loopen thereupon travels around the needle. laying the threadin its barb. The needle now retracts drawing the loop of thread through the work the needle usually dwelling more or less in' its rearmost traverses the shoe thespace'of -a'stit-eh length te the left. As theshoe thus moves, one side of the thread loop extending` from the needle hook to the. shoe is dragged against the right side of the needle and across the front thereof resting in .the spiral groove aforenien-- tioned. This action producesa crossing or twisting of the loop rendering it diilicult to disengage the loop from-:the needle barb.

40 Upon the further actuation of the machine the needle advances toward the material and position while'the work feedv mechanism cycleof operations may be repeated indefinitely to 'form a chain stitch seam. During the above cycle of operations it will. be notedthat the needle either extends Sthrpugh the material with the loop of thread around its shank, or is retrac'ted`from the work with thethrcad held firmly in its barb.' It is obvious that were the machine l the machine, the position of certain auxiliary parts of the mechanism also interfering with such 4action and rendering it practically impossible of performance. It is therefore necessary to stop themachine at the completion o f the operation with the needle out of the work in retracted position, but when in such position they loop is firmly held in the barb as above described, the wax'upon the thread adding to the diiliculty of separating the loop from the needle. In the operation of this type of machine when unprovided .with a stop inotion,`the operator is obliged to take hold of the fly wheel with,

his hand and by reversely rotating the shaft and by manipulation of the shoe'cause' the needle toadvance slightly and the loop to be disengaged from the barb, whereupon he cuts the side of the loop leading to the looper and removes the shoe from the machine.

In machines provided with a stop motion it is desirable to provide for automatically freeing the loo-p from the needle barb at the completion of the operation, first to save the time and strength ofthe operator otherwise consumed in reiersing the shaft, and second because in the use of many stop mechanisms the'shaft is so locked in stoppinof as to render such hand reversal of-the shaft impossible.

Many attempts have been I nade to atta-in -the vdesired result, as by the provision of automatically acting means for reversing the shaft, means for preventing the laying of the thread in the needle barb just prior to Vthe last retraction of the needle o-r by giving the needle -a slight advancing' movement after its linal retraction whereby te loosen the barb from the loop.v

Some of the above devices have proven .fairlysatisfactory in commercial use but in m recava? mechanism adding materially to the cost and upkeep ofthe machine.

The present invention seeks to attain the desired end-by the use of relatively simple devices readily applicable to a machine-provided with a stop motion and by the us'eof which the work is released from the needle with certainty and substantially no loss of time on the part of the operator. complish this result the machine is provided `with an attachment which frees the thread forming the last needle loop from'the needle hook while .the latter is maintained in its v rearmost retracted position, such action takg place substantially simultaneously with, or slightly after the iinahmoveme-nt of the infr ' drive shaft, a brake being preferably employed for bringing such `sha-it. to rest. While such Vdisengagement of the thread from the -barb while the needle is in the above position nay be accomplished by va-v rious means, that herein disclosed consists in the provision of adevice for severing one side of the loop. While such a severing .device may be mounted and actuated in mentv atI the end of the last stitch cycle whereby to cut that side of the highly tensioned loop which lies upon the forward sur-v face of the .needle adjacent the barb. Such movement is transmitted tothe needle guide by connections from. the brake operating mechanism whereby the cutter is caused to i operate'substantially at the .instant the cam shaft comes -to rest.

As the thread leading from the looper to Ithe needle is at'this timennder a certain y amount of tension due to the action ofthe auxiliary take-up, the end ofthe threadl Y upon cutting of the l,loop would ordinarily be'whipped back through the looper eye which action is to be avoided as it is de'- sirable that the thread extend lfrom the looper eye to permit the operator to' draw out a suiicient quantity `to'enable the machine to function properly in starting.

The present invention provides means for rendering the auxiliary takeup inoperative Aat the instant of cutting the loop and during the stoppage of the machine, such means comprising 'a member actuated by connections from the brakeJ applying mechanism and acting to elevate the auxiliary take-up roll in opposition to its controlling spring.

While the mechanismv herein disclosed 1s a preferred forrnof the invention it is regarded as within its' scope to provide any or all other means for causingseparation barbv while the needle is or 'removal of the thread'from the needle rearmost retracted position. v

Other objects and advantages of the pres- 5 chine frame.

positioned in its l binations of parts will be more fully disclosed in the following specification and particularly pointed-out in the claims, reference being had VVto the annexed drawings in which,-` l

Fig. 1 is a side elevation of so much of a machihe head as is necessary to show the application of'the present invention thereto, certain parts being omitted or broken away ttor clearness of illustration;

Fig. 2 is a front elevation of the parts shown in Fig. I1; Y

Fig. 3 is a diagrammatic -illustration showing the needle and needle guide in normal forward position; Fig tris a diagrammatic view showing the needle fin rearward position and the needle guide'in abnormal forward position;

Figs. 5 and 6 are side'and end elevations,

rying out the present invention.

The numeral 1 indicates themachine head having rising therefrom posts 2 and 3 in which are provided bearings for a main shaft 4i, this shaft being adapted for receiving a series of cam discs of the usual type, such as are employed inmachines of this class for operating the various -sew-ing instrumentalities. One of suchcam -discs is indicated at 5, such disc being provided upon its right hand face with a needle actuating groove 6 and upon its left hand face with a needle guide operating groove 7.

Cooperating with the groove 6 is a roll 8 carried upon one arm of the bell crank lever 9 pivoted up'on a stud 10 secured in the ma The forward arm of the bell crank lever is connected as by means of link 11 with an oscillatory needle sector 12 mounted to swing about a fixed pivot 13,-

-parallel to the main shati'fi and mounted to turn in a fixed bearing 17, said shaft having fixed uponits left hand extremity an,

arm 18 -whichextends 'upwardly and to the rear. Extending from the lett'hand face of said arm is a'lug 19 having a threaded opening for the reception of an adjustable st opscrew 20 which may if desired be pro- `.videdwith a lock n'ut 21. Upon the 'shaft 16 adjacent thearm 18 and to the left thereof is an arm 22, said. arm being connected to thelarm 18 by means of a coil spring 23 whose opposite extremities en gage pins 24, 25ixed in the respective arms.

Upon the extremity of the arm 22is mounted a ro'll26' engaging the cam groove 7. Fixedto the right hand extremity of the rock shaft 16vis an arm 27, the lower extremity of'which isconnected by means of a link 28 with an arm 29 extending upwardly from the needleguide sector pivotally supported upon the pin 13, said needle guide 'sector having projecting therefrom a needle guide 30 provided with an opening for the passage of the needle. 31- is a cutter blade having a forwardly projecting edge and secured to the guide by means of a screw 32y or' in any other suitable manner.

33 indicates the usual channel /guide'and 34 the looper, while 35 is the take-up lever provided at its forward extremity with a roll 36 over which the thread passes and having a connection 37 by means of which the lever is actuated from a suitab/le`cam, not shown, carried upon the shaft 4, all in the usualand known manner. 38 is an auxiliary take-up lever pivoted to swing about a stud 39 forming the support for the lever 35, said leverA38 being provided at its forward extremity with a thread guiding roll 40, a thread guiding roll 41 also being provided concentric with'the pivot 39. 42 normally tends to move the auxiliary take-up lever 38 in a downward and rearward direction, whereby the thread T, which passes from the supply over the roll 41, under the roll 40, and over the roll 36, is normally placed under tension, the thread from the roll 36 passing downwardly andl .i through vthe eye of the looper 34 to the 5 work.

At some suitablepoint on the shaft 4,

herein shown as at the right hand extremity thereof, is abrake disc 43. Pivoted at the point 44 upon the head is a' curved brake lever 45 provided with a"brake shoe 46' adapted to partiallys encircle the disc 43 and to be brought into contact therewith to stop its rotation. 47 is a rock shaft mounted in bearings 48,` 49 provided in the machine head, said shaft lying substantially parallel to the shaft 4 and having upon its left hand extremity an arm 50 to which is connected a rod 51 which may be actuated through any suitable `stop mechanism, such 'as is commonly employed in the art for stopping the A cam shaft at a predetermined point i'n its rotation, such stop 'motion acting to turn thearm 50 in a counter-clockwise direction as shown 1n Fig. 1 1n stopping the machine,

thus rocking the. shaft 47 rearwardly.

Such a stop motion is illustrated in Figs. -5 and 6, wherein 4 is the main shaft of the machine having a bearing in the post 2,.

said post having upon its left hand face a iixed wedge member provided with a surface 101 for engagement with a vertically adjustable cooperating wedge member 102. The wedge member 102 is provided with a vertically elongated opening for the passage. of shaft 4, and bears at its left hand face' The spring from the brake wheel.

agr'nst one element of an `anti-friction dei vice comprising a pair of rings 103, 104 hav upon the shaft but is locked by usual or suit` able means from turning thereon, as by a spline-andgroove connection 4. 108 is a fly wheel fast upon the outer extremity of the Vshaft, 4, and provided at 109 with a hub arranged for engagement with a friction washer l110 carried upon the left hand face of the pulley 106. 111 is a yoke member having pivotalengagernent as by means of pins 112 with diametrically.opposite-points of the jwedge member .102, the lower extremity ofsaid yoke being pivoted at 113 to the top of a treadle rod 114, said rod passing up through an opening 115 in the head and being adapted for connection to an operating treadle of ordinary form.

116 is a bracket fast to the rod 114 below the connection of the latter to the yoke member, and 117 is a coil compression spring surrounding the rod and having its opposite ends bearing against the upper surface 118 of the head member and the lower surface of the bracket'116. Bracket 116 is bifurcated at its extremity and provides bearings for a cam engaging roll 119, said roll being adapted to engage the surface of the cam 107. The latter ,cam is substantially circular throughout the greater portion of its cxteit, but is cut away at 120 to form a depression into which the roll 119 may ride at times. 121 is an ear extending outwardly from the wedge member 102 and having pivoted thereto a link 122 which in turn is pivoted at the point 123 to the lower extremity of the rod 51 which aotuates the shaft 47 connected to the brake. In the operative position of the parts with the machine running the wedge member 102 is in the position shown in Fig. 5 with the spring 117 under compression and the friction surface 110 in contact with the hub 109 of the drivepulley, whereby the shaft is placed in operation. The roll 119 at this time occupies a position adjacent the circular portion of cam 107, and' the arm 50 of the brake-operating shaft 47 has been pulled down into the position shown in Fig. 6 whereby to disengage the brake lVhen it is desired to stop the machine, the operator removes his foot from the treadle thus permitting the spring 117 to act. The spring is unable, however, to lift the rod 11'4 until such time asthe roll 119 comes opposite the depressed portion 120 of cam 107, such depressed portion of the cam being so positioned relative to the stitchiforming instrumentalities of the machine that the rod 114 is only permitted to rise when the needle and other -st'itchsforming instrumentalities are in position for removal of the work. Upon the movement of roll 119 into the depression 120 wedge 102 is permitted to rise under action of sprin 117 thus releasing the fly wheel from driving connection with pulley 106. At the same' time rod 51 is moved upwardly thus turning arm 50 in a counter-clockwise direction `and through shaft 47 actuating the brake to stopthe machine.

While the above simple form `of stop mechanism is disclosed herein as one well adapted for use inl connection with the 'mechanism otherwise disclosed herein, no

claimsare made 'eheretoin this application,- itbeing understood that any equivalent stop i motion'device adapted to stop the main shaftat a predetermined position could well be vsubstituted therefor withoutdeparting from the scope of the present invention.

Nearits right hand extremity `the shaftA'Z hasl fixed thereto an arm `52 connected by means of a link 53 with astud 54fxed-to the brake lever 45, whereby rocking of the shaft 47 as above described serves to press the brake v'shoe in to contact'with the disc 43. 55

is an arm also fixed to the shaft 47 ,4 said arm lying in the plane of theV arm. 18 carried` upon the rock shaft 16 andhaving its eX- -tremity lying to the rear of and below the rear extremity ofthe arm 18. vBy this construction upon'rearward rocking of the shaft 47 the arm '55 -will be brought ,into contact with the arm 18, whereby the latterwill be rocked in a clockwise direction thus rocking shaft 16 forwardly. i 56v is another 'arm fast pin 57 with the .rear extremity of a link memvber 58. The link member 5'8 at its forward 'portion is provided With an olf-set arm 59 having a surface 60 adapted to slidably rest -upon a guide surface 61 formed. upon a bracket 62 fixed toa suitable portion ofthe machine frame. The link 58 at'its forward portion is also provided with a downwardly 1extending yarm `63 having a substantially `wardlv through the .eye of the looper. @n the normal operation of the machine vertical surface at64 lnormally lying just 'to the rear of a pin 65 outstanding from the left hand face ofthe auxiliary take-up lever 38. Upon the rearward rocking of the shaft 47 as above described when -the machine stops the` lower end of. the arm 56will be moved forwardly, thus causing a .forward sliding movement of theV link 58 along its guide 61 whereby thefsurface 64 ofthe arm 63 is brought into contact with the pin 65, thus swinging'the auxiliary take-up about` its pivot 39 in opposition to its actuating spring, thereby relieving the thread -T of-any tension tending to draw thel Vsame `back- A tothe shaft 47,. the' Ylower end of which is `connected 'by means of a weaver l the needle, looper, needle guide, take-up, and

auxiliary take-up, function in the usual manner'to form a succession of Stitches, each revolution of the cam shaft 4 completing a cycle of stitch forming operations. During the normal operation the needle guide 30 -moves downwardly following the forward the operator removes his foot from the treadle in the usual manner permitting thel stop mechanism to separate the driving clutch elements at a predetermined point inthe revolution, such point being that at which the. needle occupies its rearmost po-4 sition. `When the stop motion mechanism .operates to separate the clutch elements, the

rod 5l is automatically raised'by means of theI spring 117 under thel controlling action of the cam 107 rockingthe shaft 47 to the y rear as previously described to apply the brake. Such-,movement-of the shaft through the' action of the arm 55 causes an abnormal forward 'movement ofv the needle guide 80 and as the needle is stationary at this time thev cutting blade 31 is brought into'contact with-one side of thel thread forming the last needle loop and. which is held in thebarb of the needle. This thread is held under high tension due to the retraction of the needle and is-thus very readily severed by contact 'of the cutting blade therewith.

Such. action'of the needle-guide is per- `mitted while the camshaft remainsstationary byreason of the resilient connection consistingbf the spring 23 bywhich /the arms 22 and 18gare united,-this connection per- Amitting the arm-4 18 to be-moved' in a clockwise direction independently of .the arm 22, thelattenhowever, 4when actuated by the .cam 7 operating-'positively through the stop 20 to give the needlevguide its forward operative motion.' Substantially simultaneously with the a'cto'nof the cutting blade the auxiliary take-up is rendered inoperative vby the movement of the link'58, thus preventin AAthe thread, after. being severed,` from eing whipped upwardly thereby through the looper eye by reason of the ten' iSion normally imparted thereto by said auxiliary take-up.

-After the stoppage of the machine and the cutting o f the thread the operator may freely remove the work fromthe machine 4 andas the Aend of .the thread'remains pro-,

` as the needletat this timeis'out of the work,

chine, such as the needle, looper and theop-k erating connections' therefor, and without the necessity of reversing the movement of the cam shaft in stopping. As herein shown the severing of the thread has been de` scribed as accomplished by an abnormal movement of the needle guide butit is clear that a movement of the needle rearwardly through a. stationarily held guide would produce a similar result.

While in the present disclosure a cutter blade connected to the needle guide has been l shown it is contemplated as within the scope of the present invention to provide a cutting device carried by some other reciprcable part of the machine and opera-ting in proper time with the stop-mechanism to produce the desired result. It -is furthermore contemplated that means other than a cutting blade may be employed for freeing the thread from the needle hook insofar as such means are included within the scope of the appended claims.

Having thus described the invention in a preferred embodiment thereof, together with the mode of operation-of lthe same what I claim and desire to secure by Letters Patent A 1 of the United States is,-

1. In a machine of the class described, in combination, sewing instrumenta-lities including a hooked needle and looper, mechanism for imparting to said needle a thread receiving and a thread drawing movement, and means for severing the thread adjacent the needle hook,' sa1d means including devices for insuring the `operation of the thread-severing means substant'ally at the end of a thread drawing movement of the needle;

2. In a shoe sewing machine having stitch-forming instrumentalities including a curved, hooked needle and a looper, in combination, mechanism for'imparting to said Y needle a forward movement to receive the thread in its hook 4and arearward threaddrawing movement, and operator controlled a looper, a main-shaft from which said devices are operated, controlling mechanism to cause the needle to come to rest at the completion of a normal stitch-drawing movement, and means ineffective duringthe norlmal operation of the machine'and actuated by said controlling mechanism for engaging the last loop of thread to free it from the hook of the needle'in the rest-position'of1 the needle.

4L. In a machine of the class described, in combination, stitch'for'ming devices including a hooked needle and a looper, mechanism for imparting to said needle a movement to position the same for receiving thread in its hook` and a rearward movement for draw- -ing the thread to form a stitch, and means ineffective during the normal operation of the machine and actuated independently of the needle actuating mechanism but timed by connection therewith for action in a predetermined stage of a stitch-forming cycle for freeing the thread from the stitchform- `ing device substantially at the end of a rearward movement of the needle,

5. In a shoe sewing machine having stitch forming devices including a curved hooked needle and a looper, in combination, mechanism for moving the needle into position for receiving thread in its hook and for retracting it'to draw a stitch, means for stopping the machinewith the needle retracted and \out of engagement with the work,and devices including an element ineffective during the normal operation of the.machine asso- Vciated with said stopping meansand actuated independently of but timed for action in a predetermined stage of a stitch-forming cycle of the needle actuating mechanism for *freeing the thread fromthe hook of the retracted needle.

6. In a chain stitch shoe sewing machine having stitch lforming instrumentalities including a curved hooked needle and a looper, in combination, means for actuating said instrumentalities cycle after cycle to form a succession of stitches and normally ineffective mechanism automatically rendered effective upon stoppingof the machine to during a forward cycle of operation engage the thread of the last needle loop to free it from the needle hook while the latter isl in substantially its rearmost retracted position.

7. Al machine oflthe class described hav- -ing, in combination, stitch forming devices 'including a hooked needle and looper, means for actuating said devices to form a succession of stitches, and means acting automatically upon stopping the machine to sever theV thread to free the same from the needle hook.

8. In a shoe sewing machine employing a hooked needle and a looper, in combination, a reciprocatory part, a cutting blade mounted thereon, operating mechanism for normally actuating said needle, looper and reciprocatory part `during the formation of a seam, and means acting automatically upon stopping the machine for giving said part, an abnormal reciprocation wherebylto bring said blade into cutting relation of the last needle loop. Y 1

9. In combination in a shoe sewing machine having a curved, hooked needle, and a needle guide,.means for actuating said .parts cycleafter cycle in the formation of successive stitches, a thread severing d evicefv l Y comb1nat1on, a needle, a looper and operat- ,vingl' mechanism therefor, a member normountedupon said needle guide, and mechanism acting automatically upon stopping the machine to impart, an abnormal movement 'to saidneedle guide whereby to bring said device into severing relation to the thread of the last needle loop.v I f 10. In a shoe sewing machine,. the com'- .bination with a,-.needle 'of an oscillatory needle guide, a thread-cutter mounted there-- on means for imparting to said guide normal A andv abnormal movements, -said means comprising a lever, 'a rotary cam-for imparting to said lever a normal oscillation during the stitching operation, 'and a rockable member for' imparting to said lever an abnormal movement in stopping the machine-whereby to bring said cutter into severing relation,` with the thread of the last needle-loop.

11. A chainstitch shoe sewing machine having, in combination, `\perati ng instrumentalities including a looper, a curvedl hooked needle, angoscillatory guide for the needle, ai cutting blade mounted thereon mechanism for normallyactuating said instrumentalities cycle after cycle in-the for-l mation of stitches, devices for bringing said needle to rest in a predetermined position out of the work, and means associated with. said' device for imparting an abnormal movement to said needle guide during the last cycle of l operationfwhereby to bring said cutt'ino` v bythe needle-hook.

` chine of a curved needle, an4 oscillatory blade into severing relation to the `threa held in the needle hook. i

12. In a chain stitch shoe sewing machine, Y in combination, a curved hooked needle, ,an oscillatory needle guide, a thread cutting lblade fixed to said guide, means for impart'-` r ing normal movements to said needle 'and guide during the formation .of stitches and means'actuable at the will of the operator for imparting an abnormal. forward motionto said guide when theneedle'is in retracted position wherebyI to bringthe' edge of said blade into cutting relation to the thread held 13. The combination a shoe sewing maneedle guide, a thread-cutter mountedthere- `on-means for actuating said'guide comprising a rock shaft having an arm operatively connected to said guide and a second' armprovided with an adjustable stop screw, a third arm loosely pivoted'upon said shaft abfljacent said second arm, a spring connecting said arms whereby normally to maintainv said third arm in- Contact with lsaid stop, means for actuating said third'arm whereby to impart normal operative movement` to said guide, and means under control of the operator .fr independently actuating said mally operative to tension the thread between the supply and the loopermeans for severing-the thread constituting `the needle loop, andv devices for simultaneously actuating said severing means and for'rendering said tens-ion, member inoperative;

15.'A chain stitch shoe sewing machine having, in combination, a hook needle and a looper,a main'shaft from which said .needle and looper are operated in the formation of stitches,;-m.eans for stopping-'said shaft during a forward rotation thereof with the needle in'retracted position, an auxiliary take-up, device normally acting to tensionthe thread between the vlooper and-the supply, a thread-cutter and devices'for actuating the cutterto sever the thread and for rendering said auxiliary take-up ineective simultaneously with such stopping of the shaft. 1 6. In a shoe sewing machine, in combination, stitch forming and thread controlling instrumentalities including. an ,auxiliary take-up, a spring for actuating said take-up, Y

means for operating said instrumentalities for the formationof stitches, a thread-cutter, andmechanism for, stopping the operationof said instrumetalities and for simultaneously actuating the cutter to sever the' thread and for renderingsaid take-up spring ineffective.l Y

17. Af chain stitch shoe sewing machine hfaving, in combination, a needle, a looper, a thread-cutter,and aspring actuated pivotedtake-up, a main shaftfrom'which said needlean'd looper are operated, mechanism to'arrest the forward rotation of said shaft with the needle in a 'predetermined position,

saidv mechanism comprising' an oscillatable member, and a device actuable' bysaid. member substantially sin'iultan'eouslywith the stopping of said shaft for actuating the cutter to sever thelthread and for swinging said take-up upbn itspiyot in opposition lits actuating spring.'

' 18. A shoe sewing machine having, in combination, a hooked` needle and a looper, a main shaft from which said needle and looperfar'e operated, a pivotally mounted4 l auxiliary take-(np, aspring for swinging saidl take-up .rearwardly to tension "the thread, a `thread-cutter, stop mechanism for arresting the forward rotation of said shaft, mechanism for stopping the forward rota- 20 said stop mechanism comprising arock shaft tion of the main shaft in a predetermined having an'arm fastA thereon, an operative position such mechanism comprising devices connection between lsaid rock-shaft and for slmultaneously actuating the needle thread-cutter for actuating the latter and a guide to cut the thread of the last needle link having. one end thereof pivotally conloop and for rendering said take-up ineffec- 25 nected to saidarm and the opposite end tive. thereof guided for movement "into contact 20. The combination in a chain-stitch with an element of said take-up, whereby wax-thread shoe sewing machine having upon stopping of the main shaft and rockstitch forming devices including a hooked ing of said rock shaft the auxiliary take up needle and a looper7 of means for actuating 30 1S gwungqlpon its pivot, into inoperative po-v Said dQIVlCP/S fOI the fOIIDaOIl Of Stlil'lles, sition in opposition to its actuating spring. 'mechanism for stopping said devicesI in a 19. In a chain stitch shoe sewing machine Pmqetefmlned Position, and means fo? autohaving, in combination, a needle and a {Hatlcauy SSVerlIlg the thread at il P0111t adlooper, a main shaft from which said needle jacent the Work. 0 35 and looper -are operated, a 'pivoted needle In testlmony-Whe'eofa I have Slgned my guide, a thread cutter mounted thereon, a name t0 this Specificatiollspring actuated auxiliary take-up, and stopv v F LIX EMILE VALOIS.

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