US1143929A - Tag-sewing machine. - Google Patents

Description

M. O. ANTHONY.

TAG SEWING MACHlNE.

wmcmow HLED SEPT-3.1913.

1,143,9%9. I Patented June 22, 1915 3 SHEETS-SHEET I.

Witnesses. Inventor.

' 19 M 4 MarcusOAnthony, W YMMt/W:

O. ANTHONY.

TAG SEWING MACHiNE.

APPLICAHON mu) SEPT. 3, I913.

P. F. F H

Marcus 0. Anthc m yzmdwpe/ WiTnesses. we /Wm. M.

y, W Amy's.

M. 0. ANTHONY.

TAG SEWING MACHINE.

APPLICATION FILED SEPT. 3 1913.

1 143,929. Patented June 22, 1915.

3 SHEETS-SHEET 3.

Fig.8. 38

Witnesses A9 3 Marcus 0. Anthony,

' I rmzwaew Atty's.

MARCUS O. ANTHONY. OF NEW NEW YORK, N.

YORK, N. Y., ASSIGNOR TO A. KIMBALL COMPANY, OF

Y., A CORPORATION OF NEW YORK.

TAG-SEWING MACHINE.

Specification of Letters Patent.

Patented Jun 0 22, 1915.

Application filed September 3. 1913. Serial No. 788,025.

To "Z whom it may con/(rm Be it known that I, Manors O. An'rnoxr, citizen of the United States, residing at New York, county of New York, State of New York, have invented an Improvement in Tag-Sewing Machines, of which the following description, in connection with the accompanying drawing, is a specification, like characters on the dra ing representing like parts.

This invention has reference to sewing machines, and more particularly to an automatic machine for sewing ticl is upon merchandise.

Various forms of tickets are extensively used for marking merchandise to indicate the size, quality, price, etc. The sewed ticket offers several advantages over other forms, among which are the possibility of applying to fine goods without damaging the goods, the absence of metal which may rust and stain the goods, the absence of projecting metal points to prick the fingers or catch in other goods, and the permanence of the attachment making it ditlicult for dishonest clerks or purchasers to change tickets. The needle being sharp and smooth penetrates even fine fabrics without damage such as is caused by the roughly finished points of machine made pin tickets. ()ne of the, requirements of tickets for marking merchandise is that goods may be quickly marked as l'or example when a large. quantity of new goods are to be offered for sale or when goods are to be re-marked as for a clearance sale.

The main object of the invention is accordingly to provide a machine for sewing tickets upon merchandise which will quickly and automatically perform the various operations necessary, such as clamping and releasing the work, sewing the ticket to the merchandise and stopping the operation of the stitch forming mechanism after a pro determined number of stitches. securing the thread so that it will not unravel, cutting the thread, and restoring the parts to initial position.

()ther objects will appear from the following specification and the accompanying drawings in which the novel features will be fully disclosed and particularly pointed out in the claims.

Referring to the dr .ings, in which I have illustrated a preferred embodiment of my invention, Figure 1 is a side view of an automatic machine constructed in accordance with my invention. Fig. 2 is a front view of the same. Fig. 3 is a plan view partly in section taken on the lme 3 3, Fig

1. Fig. r is a detail of a ratchet mechanism which operates in conjunction with the carria e feed. Fig. 5 is a bottom plan view showing the feed rack and thread cutting mechanism. Fig. (3 is a view partly in section taken on the line (i-J5, Fig. 1. Fig. 7 is a sectional view taken on the line 7-7 Fig. (i. Fig. pin. Fig. 9 is a perspective. view of the movable rack segment. Fig. 10 is a detail view of the clamp releasing mechanism and Fig. 11 is a sectional view showing the rack segment detcnt and the releasing cam therefor.

The mechanism illustrated comprises a support, a carriage pivotally mounted for a limited swinging movement upon said support, stitch forming mechanism mounted upon said carriage. a feed mechanism to impart a swinging movement to said carriage during the sewing operation and means for returning the carriage to initial position. a work clamp. thread cutting mechanism for cutting the thread at the end of the sewing operation, an adjustable mechanism to vary the length of the line of stitching. a motor, and a clutch for connecting the motor to the stitch forming mechanism.

Referring to the drawings in detail the support comprises a base plate 1. a platform 2, a work table 3, and several distance members l and 5, connecting the same. Upon the base plate 1, I mount a motor (1. and connect this to the main drive shaft 7, by means of a grooved pulley 8. secured to the motorshai't, a grooved pulley 9. mounted on the main shaft and connected thereto by a clutch 10. and a coil spring belt 11. connecting the pulleys. Elongated holes 12.:1nd13, in the platform permit the passage of the belt during the swinging movement of the carriage 14.

The carriage is made in two parts, a lower or body portion 15, and a cover plate 16. A screw bolt 17, extends through a hole 18, in' the body portion and is secured .in-the. platform thus pivotally connecting the. carriage to the platform as shown in Fig. 6. The opposite end of the carriage is formed on an are having its center at the pivotal point and is grooved as shown at 19. A correspondingly curved guide '20, is secured to the platform 2, HdJtICOIlt this end of the car' 8 is a detail view of the clutch riage and is provided with a rib 21 having ratchet teeth 22, the rib thus acting as a guide for the end of the carriage and as the rack of a ratchet mechanism to be hereinifter described.

The stitch forming mechanism comprises a frame 23, secured to the carriage 14, the main shaft 7, a needle bar 24, a needle bar oscillator 25, all mounted in the frame, an eccentric 26, secured to the main shaft, a connecting rod 27, connecting the eccentric 26, to the needle bar oscillator 25, a looper 28, secured to the end of the main shaft 7, and a tension device 29, arranged to be operated from the eccentric 26, by the lever 30, pivoted to the frame at 31, and the rod 32, slidably mounted in the frame. The stitchforming mechanism operates at a sufficient distance from the pivot of the carriage so that the line of stitching will extend in a substantially straight line across the ticket. As this stitch forming mechanism in itself is of common and well known construction it will not be described more in detail. I have illustrated and prefer to use a stitch forming mechanism of the single thread type, as this is simpler and better adapted to this class of work.

The feed mechanism for swinging the carriage 14, about its pivot comprises a rack 33, secured to the underside of the work table 3, as by screws 34, and a pawl 35, mounted on an eccentric 36, and having a wide tooth 37, for engaging the rack 33. This pawl 35, is so arranged that during each revolution of the main shaft, and while the needle bar is in elevated position, it will engage the rack. 33, and swing the stitch forming mechanism about its pivot 17, a distance determined by the length of the teeth on the rack 33, and the eccentricity of the eccentric 36.

A spring drum 38, secured to the platform 2 and connected to the carriage 14, by the cord 39, tends always to return the carriage to initial position and a ratchet mechanism 40, holds the carriage in position after each feeding movement. This ratchet mechanism comprises the rack 21, reviously mentioned and a pawl 41, slidab y mounted in a groove 42, in the body member 15, of the carriage and pressed forward by a spring 43. A cam 44, is positioned at the end of the rack 21, or made integral therewith as shown in Fig. 4 so that when the pawl 41, is engaged by this cam during the last feeding movement of the carriage the pawl will be moved back a greater distance than when moving over the teeth 22, of the rack. A pivotally mounted retaining latch 45, is urged toward the pawl 41, by a spring 46, and when the pawl is given this extreme movement by the cam 44, the latch 45, en-

- gages a notch 47, in the pawl and holds the pawl in this inoperative position. the

pawl 35, moves down after the last feeding movement the spring drum 38, will swing the carriage 14, and the mechanism mounted thereon back to its initial position. The initial position is determined by the adjustable stop 48, which comprises a slotted plate having a tooth 49, which may be adjusted to engage any one of the teeth of a toothed segment 50, secured to the platform 2. The stop 48, is held in adjusted position by the thumb screw 51. When the carriage 14, swings back to the initial position the pin 52, engages the stop 48, and swings the pawl 45, about its pivot releasing the pawl 41, and permitting it to engage the rack 21. By this mechanism the carriage is given a feeding movement step by step for the full distance of its travel and is automatically restored to initial position.

The thread may be fastened at the end of the row of stitches to prevent unraveling as for example by drawing the end of the thread through the last loop or uy tying a knot in the thread. I prefer to tie a knot in the thread and for this purpose I provide a mechanism whereby the last two stitches are made in the same hole. T o accomplish this I provide a rack segment 53, having two teeth 54 and 55, slidably mounted at the end of the rack 33 as by screws 56 and 57, extending through a slot 58, and secured in the table 3. The segment 53 is slotted as shown at 59 to receive the end 60, of the rack 33, and it is mounted to permit a move ment equal to the distance between two sac cessive teeth. The screw 56 engages the end of the slot 58, to limit the movement of the segment in one direction and the end 60 of the rack 33, engages the segment at theend of the slot 59, to iimit movement in the opposite direction. A spring 61, urges this segment away from the rack. As will be noticed the tooth 54, of the segment is positioned laterally of the rack 33, and the tooth 3?, of the Zl\\i 35, is made suluciently wide to engage this tooth as well as the rack teeth. A spring detent 62, having a projection or catch 63, is secured to the segment and a recess 64, is provided in the underside of the work table in position to be en gaged by the catch when the segment is in the position nearer the rack. When the pawl tooth 37 engages the tooth 54 of the segment the spring 61 will yield and the segment will move toward the rack and be retained there by the detent- 62, thus permitting the carriage to remain in the same position for a second stitch. Upon the next ro tation of the main shaft the pawl tooth 37, will engage the tooth 55, of the segment and move the carriage one step forward. Dur ing this last feeding movement the thread cutting mechanism, the clutch releasing mechanism, and the previously described mechanism for withdrawing the pawl 41,

will be operated and the carriage will return to initial position.

The detent 62, is provided with a lateral projection 65, and a cam 56, carried by the frame of the stitch forming mechanism will engage this projection 65, during the return movement of the carriage, moving the catch 63, out of the recess U4. and permitting the segment 53, to return to its initial position under the operation of the spring 61. The position of the can? ii in the frame i2 3 is substantially above one of the bearings of theshaft 7 as indicated in Fig. 3. This cam passes above and depresses the projection 65, both on the return movement and on the forward or feeding movement of the carriage and if for any reason the segment i 3, fails to move back to initial position upon the first engagement it will so move upon the second engagement of the cam with the projection 65, as the carriage moves forward during the stitch forming operation, the more certainly so because the pressure of the beveled surface 07, of the cam on the projection is operating in such a direction at this time as to assist the movement of the segment 53 to initial position. This simple expedient of forming 2 stitches in the same hole ties a knot which smnrcl prevents the accidental unraveling the t med while at the same time permitting?! casv rcniova? of the tag by cutting the ivnoi.

The thread cutting i'uechanism is shown in Figs. 2, 3, and 5. Th mechanism com prises a knife blade 68, s ably mounted in a guide 69. secured to thr waterside of the worktable 3- A pin (it projects from the blade and engages in a slot Tl, in a lever 72, pivoted at Z3. 1 have shown this lever as mounted on a plate 71, which in turn is secured to the work table 3, and v 11 is pro vided with a stop pin i to limit the move-- ment of the lever. A. g T 5. arranged to return the lever to initial position after the cutting operation A pawl 77, pivoted in a bracket 78, and is normally urged toward the lever 72. by a spring 79. As the carriage swings aboui its pivot during the stitch forming operation a spring prtsscd plunger carried by the carriage engages the lever 72, at 81. This plunger 80, is urged forward by a. spring 82, which is considerably strongcr than the spring 7! As this plunger 80, engages the lever 72, the spring 82, is compressed. the lever 72 being held against movement by the pawl 77. As the carriage approaches the end of its travel the pawl is depressed by. a pin 83, engaging the cam surface 84. of the said pawl 77, and the knife is given a quick forward movement. The length of the pin 83 is such that the lever is released during the hot fr rating movemcnt of the carriage and before ikia return to initial position. The thread is 'i/llllr cut imuuuiiataly after the kn tied. The

knife 69, is so shaped that it will engage the thread at an angle and therefore be more certain to sever it. As the carriage returns to initial position the spring 76, will move the lever back in position to be again engaged by the pawl 77.

The work clamping mechanism comprises a clamping member 85, bctwccn which and the work table the work is held during the sewing operation. This clamping member is pivoted as at 86, to a bracket 8T, secured to the work table. A second bracket 88, is secured to the work table as shown in Figs. 1, and 5, and is provided with projections 89 and 90 extending above the plane of the table behind the bracket 87. Springs J1 and 92 are scoured to these projections and to the ends of a bar 93 secured to the work clamping member. These springs are so positioned that when the clamp is down the springs will lic in a plane below the pivotal point R0, and whcn the clamping member is in elevated position the springs will extcnd above this pivot 86. In this nnmner the springs tend to retain the clamp either in its elevated position or in its depressed or clamping position. This clamping member is provided with an extension all, extending toward the frame of the stitch forming mechanism. A cam 95, is pivoted to the frame at J6, as shown in Fig. 1 and the pivotal nnormcnt of this cam is limited by a stop 97. the carriagc returns to initial position after the sewing opcration the facc the of this cam will cngagc the projection O l, of the clamping member and depress it to raise the clamping mcmber and release the work. During the feeding movcmcnt however the face 99. of the cam will engage the projection and the cam will swing about its pivot thus not affecting the position of the clamping member. Slots and 101 in the clamping member and work table respco tivel pcrinlt the passing of the needle, the slot in the clamping mcmbcr bcing sul'licicntlv wide to permit its movement on the pivot SH without binding on the needle. The work clamping member iS;HliUl1in llly pressed dovvn to clamp thc work by the lust downward movement of the nee le b'll' 1.. t is retained in this position by the springs 91 and 92. By this mechanism thc clamping member is automatically operated to clamp the work at the very beginning of the stitch forming operation and to release it at the end of such operation.

The term work clamp as found in the claims is uscd in a broad sense to designate means for gripping the work. but is not liniiled n means approaching the work from op in sides to grip it th *bctwecn as shoan the embodnncnt 1 ated in which work is clamped i he work sable 3 and the clampii the main shaft may be of any butis preferably of such a will be disconnected at a definite pm revolution of the main shaft tll!lf---:,i1 tl' \fE stopping the stitch forming mechanism when the needle bar in'clevated position. In tl construction illustrated. ilislcs 102 and it are mounted on the shalt T on opp i i s of the pulley 5 and secured by setecreivs. A hole is drilled half in the shaft and half in the pulley and dishs thus orming a in the shaft. pulley and dislisu A pin mounted in the hole thus form d a mi 151 away for half of li-ltll2ill1(!l, fl' where it pa through the pulley shown at it)? in ii 8. An arm 10; i secured .to the i'iltl a? pin by a. small pin 107. A spring to the end ol the pin 107 and to the iii-- tends to swing the arm toward the eta thereby rotatin; the pin 101. When n is against the stop the pin 101 is turned go that it is half in the shaft and half in the pulley thus clutching the pulley to the shaft. \Vhon the arm 106 is rotated about ninety degrees from the stop the seini-ciirular part of the pin 104 is positioned ntiz. in the groove in the shaft and the puli. is free to rotate. To move the arm to tlii i provide a rock shaft 110 lllfillllil ets on the carriage and ha\ imr 17 l} to form a stop 1.11. This roel; rotated through a limited angle 1-: i stop 111 to a position to outrage th min 106 during the rotation of the disk 1 \Vhen the stop engages the urn: the pin i is rotated by the. mouanent of the dish until the pulley is released from the shalt and rotates idly. "hen the stop 5 I win depressed the sprin 10S free to and when the groove of the pulley cot; opposite the groove of the shaft it v. ill rto the pin 10* to clutch the pulley to the shaft. .t retaining bracket 112 secured to the dish pr vents the accidental outward movement the pin 104.

The rock shaft llO may be rotated by an arm 113 secured thereto and projecting to Within easy reach of the operator and re tained in either position by a spring detent 114 engaging a projection 115 on the lever. To automatically disconnect the clutch I provide a depending arm 116 secured to the rock shaft 110 and a stop 117 secured to the platform in such position that. the rock shaft Will be rotated to raise the stop 111 during the last feeding movement of the carriage. The main shaft continues to rota to for a part of a revolution insuring the release of the ratchet mechanism 40, the release of the pawl from the segment tooth 55, and the consequent return of the carriage. The rotation of the main shaft ceases while the needle bar is still in elevated position.

The operation of the device is as follows:

ii iiifl The adpistzihie stopfllfi is th tl 128 of tag; to he used. ehandi with the unite. with the W0. the le vr 11? Ci il: clutch. to connect the him: to the source of power. {from the first dm nrrard thrust of the needle bar the clamping m mber depressed automatically cla ing the. Work to the nail; table. The stltc forming lIl UlHUllE H sews the tag to the merchandise shi the pawl and the eceenirir 3 authentic-mlly feeds the ear- "i no I; 1; two stitches are formed in hole through yielding of the rack The spring plunger engages of lever 72-, eoi'apr irg the until the it. released durii ast feeding; mtnmment of the carriaae when the knife is forced forward and can; the thread. During this last feeding movement the arm 11G, engages its stop rotating the rock shaft 110, to release the clutch 10, and the cam 44. moves the pa l 41, so that it is engaged by the retaining latch 45. As the feed pawl 35, moves out of the engagement with the tooth 55, of the rack segment the carriage returns to initial po ition. As the carriage returns the cam 6, engag s the projection i releasing the airfoil? Wit and permitting the rack segment i l i urn to its initial position under the aci n of tne spring 61. Also during the return nroizr-ment of the carriage the cam 95, van-e s the projection 94. of the clamping ment ol thereby raising the clamping memb r and releasing the work. is the carriage rilies the stop 49. the pin 132, is moved in- \vardly trimming! th ,titl -51. and all. the parts are! i a:

sho

- I have hown the st tch h rming mechanism as movable the ess ntial requirement is that there shall be. relative movement between the stitch foianing mechanism and the Worlt clamping member \v 2 means for stopping the operation of the stitch forming mechanism and restoring the parts to \initial posit ion.

Variousmodifications mav be made Without departing from the spirit of the invention as defined by the claims.

Having fully described my invention what I cla m as new and desire to secure by Letters Patent is;--

l. in automatic mar-hint! of the class described comprising a stitch forming mechanism and means for operating it, a Work clamp having members adapted to grip the work positively and continuously during the stitch forming operation, means for causing a relati e step by step feeding movement in ing the stitch forming mechanism a substantially straight line for a predetermined distance between said stitch forming mechanism and said clamp, means for stopping the operation of the stitch forming mechanism at the termination of said feeding movement and for automatically restorand clamp to initial position.

2. An automatic machine of the class described comprising a stitch forming mecha nism, a work support, means operated in connection with said stitch forming mechanism for causing a relative feeding movement between the stitch forming mechanism and the work support in one. direction along a predetermined path. means for stopping the operation of the stitch forming mechanism at the termination of said feeding movement and automatically returning the movable part through the same path to initial position.

3. A machine for sewing tags to merchandise comprising a stitch-forming mechanism, a work clamp, a source of power, driving connections between said source of power and said stitch-forming mechanism and means operated in unison with said stitchforming mechanism for causing relative movement between said stitch-forming mechanism and work clamp step by step successively in one direction to form a row of stitches, with a dwell during the formation of each stitch and a continued dwell during the formation of two stitches near the end of said movement.

4. A machine for sewing tags to merchandise comprising a stitch-framing mechanism. a work clamp, a source of power, driving connections between said source of power and stitch-forming mechanism means operated in unison with said stitch-forming mecha nism for causing relative. movements successively in one direction between the stitchf ning mechanism and the work clamp step by step to form a row of stitches with a dwell during the formation of each stitch and a continued dwell during the formation of two stitches near the end of said movement, means for automatically disconnecting the. sti[ch-forming mechanism from the source of power at the termination of the relative movement and means for automatically returning the movable element to initial position.

5. An automatic machine of the class described. comprising a stitch forming mechanism, a. stationary work clamp. a source of power, driving connections between said source of power and stitch forming mechanism. means for causing a feeding movement of said stitch forming mechanism relative to said stationary work clamp in one direction for a predetermined number of stitches, means for automatically disconnecting the stitch forming mechanism from said source of power after said predetermined number of stitches. and means for automatically returning the stitch forming mechanism to initial position.

(3. In an automatic machine of the class described in combination. a support, a stitch forming mechanism pivotally mounted on said support. a feeding mechanism for swinging said stitch forming mechanism about its pivot in one direction step by step for a predetermined number of consecutive stitches, a source of power, means for driving said stitch forming mechanism and feeding mechanism from said source of power, means for automatically disconnecting said feeding mechanism and said stitch forming mechanism from the source of power and returning said stitch forming mechanism to initial position.

7. In an automatic machine of the class described in combination a stitch forming mechanism, a work clamp, means for causing relative movement between the stitch forming mechanism and the work clamp step by step for a predetermined number of stitches in one direction, means for permitting automatic locking of the thread at the termination of the stitch forming operation and means for automatically cutting the thread after the stitch forming operation.

8. In an automatic machine of the class described in combination a stitch forming mechanism, a work clamp, means for causing a relative feeding movement between the stitch forming mechanism and the work clamp step by step for a predetermined munbcr of stitches in one direction with a dwell during the formation of each stitch. means for automatically stopping. the stitch forming mechanism at the termination of the feeding movement. means for permitting automatic locking of the thread at the termination of the stitch forming operation. means for automatically cutting the thread after the locking of the thread and means for automatically restoring the parts to initial position.

9. In an automatic machine of the class described in combination a stitch forming mechanism, a work clamp to grip and hold the work. means for causing a relative movement between the stitch forming mechanism and the work clamp step by step f )I a predetermined distance in a predetermined path with a dwell during the formation of each stitch. means for automatically stopping the stitch forming mechanism at a predetermined point, means for automatically returning the movable mechanism to initial position in the same path and means actuated by said movable mechanism on its return movement for automatically releasing the work.

10. In n automatic machine of the class described in com ination a upport, a Stitch forming mechanism movably mounted upon said support, a work clamp mounted upon said support and feed mechanism for moving said stitch forming mechanism comprising a pawl carried and operated by said stitch forming mechanism, a rack secured to the support and positioned to be engaged by said pawl, a. second rack secured to said support and a spring pressed pawl movable with said stitch forming mechanism and adapted to hold said stitch forming mechanism in definite positions relative to said support.

11. In an autonmtic machine of the class described. in con'ibination a support. a carriage pivotally mounted on said support, feed mechanism for moving said carriage relatively to said support comprising a rack secured to said support. a pawl engaging said rack and operable to move said carriage intermittently and a movable element positioned at one end of said rack and having two teeth and arranged to move under the influence of said pawl when one tooth is engaged by said pawl and to remain stationary when the other tooth is engaged by said pawl therebv causing the carriage to be moved when said other tooth is engaged by said movable pawl.

12. In an automatic machine of the class described in combination a support. a stitch forming mechanism mounted on said support. a work clamp also mounted on said support. means for causing a relative feeding movement between said stitch forming mechanism and thework clamp step hr step for a predetermined distance in one direction and a knife movably mounted on said support and means set in operation by the relative step by step feeding movement of said stitch forming mechanism and work clamp for moving said knife to cut the thread at the end of the stitch forming operation.

13. An automatic machine of the class described comprising a stitch forming mechanism and means for operating it. a Work clamp. means for causing a relative step by step feeding movement for a predetermined distance between said stitch forming mechanism and said clamp. means for stopping the operation of the stitch forming mechanism at the termination of said feeding movement and for automatically restoring the stitch forming mechanism and clamp to initial position by returning the movable element through the same path of movement. and means adjustable to determine the amount of relativ timovement.

14. An automatic machine of the class described comprising a support. a carriage pivotally mounted on said support, a stitch forming mechanism mounted on said carriage a work clamp connected to said support and arranged to hold the work in fixed position to be operated upon by said stitch forming mechanism, a carriage controlling mechanism arranged to give said carriage a. forward feeding movement step by step for a predetermined distance and a continuous backward return movement to initial position.

15. An automatic machine of the class described comprising a support, a carriage pivotally mounted on said support, a stitch forming mechanism mounted on said carriage, a work clamp connected to said support and arranged to hold the work in position to be operated upon by said stitch forming mechanism, a feeding mechanism comprising a rack and pawl and a yieldable toothed member at one end of said rack operable to give said carriage a forward feeding movement step by step for a predetermined distance with a dwell during the formation of each stitch and a continuous dwell during the formation of two stitches and means for causing said feeding mechanism to cease operation and means for giving said carriage a continuous return move ment.

]6. A machine of the class described comprising a stitch forming mechanism. a work support, a feeding mechanism comprising a rack secured to the work support and a pawl carried by the stitch-forming mechanism. and means for causing a dwell in the operation of said feeding mechanism such that two stitches will be formed in the same place in the work thereby tying a knot in the thread.

17. f3. sewing machine comprising a stitch forming mechanism. a work support. means for causing a relative feeding movement betw en said mechanism and said'surmort comprising a rack secured to the work support and a pawl carried by the stitch-forming mechanism. and means for causing at a predetermined time a dwell in the action of said feeding means during the formation of two successive stitches whereby the thread is fastened.

18. In an automatic machine of the character desci'ibed. a support. a carrian e pivotallv connected to said support. a stitch-forming mechanism carried bv said carriage and a rack and pawl mechanism for gi ing a step bv step feed ng mo em nt to said carria e with a dwell during the formation of each stitch.

19. In a machine of the character described comprising work clamping mechanism and stitch forming mechanism. means for causing step bv step movement between the work clamping mechanism and the stitch forming mechanism comprising a rack connism adapted to prevent a return movement of the carriage during the stitch forming operation and means for releasing the latter at the termination of the stitch forming operation to permitthe return of said mechanism to initial position comprising a cooperating rack and dog and means for holding said dog retracted during' the return movement. I

20. In a machine of the character described comprising work clamping mecha' nism and stitch forming mechanism, means for causing step by step movement between the work clamping mechanism and the stitch forming mechanism comprising a rack connected to the work support, a cooperating pawl carried by the stitch forming mechanism and means for actuating the same, means carried by said stitch forming mechanism adapted to prevent a return movement of the carriage during the stitch forming operation and means for releasing thelatter at the termination of the stitch forming operation to permit thereturn of said mechanism to initial position comprising a co operating rack and dog, means for holding said dog retracted during the return movement, and means for releasing said dog when the mechanisms have reached initial position.

21. In a machine of the character described comprising a work clan'lping mech anism and means for causing relative step by step movement between said work clamping mechanism and the stitch forming mechanism to produce a predetermined number of stitches.,-means for restoring the stitch t'orming mechanism and work clamping mechanism to initial position, means automatically operated during said restoring movement for cutting the thread and means also operated during the restoring movement for releasing the work clamping mech anism.

' 2-2. In a machine of the class described comprising a work support, stitch forming mechanism pivotally mounted thereupon and means for causing relative step by step movement between said work supportand stitch forming mechanism, a clamp pivotally mounted on said work support adapted in cooperation therewith to grip the work and ccperation therewith to grip the work and means operating upon the return movement of the stitch forming mechanism to release said. clamp from the wor'lccomprisin'g a cam engaging an extension upon said work clamp; I

24. In a machine of the class described comprising a work support, stitch forming mechanism pivotally mounted thereupon and means for causing relative step by step movement between said work supportand stitch forming mechanism, a clamp pivotally mounted on said work support adapted in cooperation therewith to grip the work and 25. In a machine of the character de'-.-

scribed comprising a work support and stitch forming mechanism, means for causingrelative step by step movement between the said work support. and stitch forming mechanism, a work clamp pivotally mounted on said work support, a spring attachedto said Work support and to said clamp adapted to lie upon one side oft-said pivot when the clamp is in clamping position and thereby to retain it in engagement with the work and adapted to lie upon the opposite side of said pivot when the clamp is raised from work engaging position and thereby to support said clamp in elevated position.

26. In a machine of the character described comprising a work support andsupport and said stitch torming mechanisin,

a. clamp pivotally mounted, upon saidwork support and cooperating therewith ;to grip the work, an extension beyond the pivot of said clamp, a spring attached to said clamp and to said work'support and adapted to' be positioned upon either. side of said pivot and means carried by the stitch forming mechanism adapted to dep're :saidex't sion and thereby raise the chi shifQ-the spring from-one side of hs'a iyotjtofthe other to raise the clamp frinngupping posr-ftion and to maintain the same in: raised position. V In test mony whereof, I have s gned my name to this specification. in the'presenc'e of two subscribing witnesses.

MARCUS O. ANTHONY.

Witnesses: Hswar Pom, C. ALBIN WALLIN.

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