US2175247A - Button sewing machine - Google Patents

Description

J. BRUSSELL BUTTON SEWING MACHINE Oct. 10, 1939.

Filed Aug. 4, 195! 5 Sheets-Sheet 1 INVENTOR. JACOB BRUSSELL A 'I T OR N E Y.

Oct. 10, 1939. J. BRUSSELL BUTTON SEWING MACHINE Filed Aug. 4, 1957 S Sheets-Sheet 2 INVENTOR. JACOB BRUSSELL ATTORNEY.

Oct. 10, 1939. BRUSSELL 2,175,247

BUTTON SEWING MACHINE Filed Aug. 4, 1957 5 Sheets-Shea. 3

INVENTOR. JACOB BRUSSELL ATTORNEY.

J.. BRUSSELL BUTTON SEWING MACHINE Oct. 10, 1939.

Filed Aug. 4, 1957 s sheets-sneer;

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INVENTOR. JACOB BRUSSELL ATTORNEY.

Oct. 10; 1939. .1. BRUSSELL auflu SEWING MACHINE Filed Aug. 4, 1937 IN V'ENTOR. J4COB BRUSSELL BY ATTORNEY.

Patented Oct. 10, 1939 UNITED STATES 2,115,241 BUTTON SEWING meme Jacob Brussell,

Application August 4,

19 Claims.

This invention relates to sewing machines, more particularly to machines adapted for sewing buttons, snaps, hooks, shanks, etc. on garments'.

It is among the objects of the present invention to provide a button sewing machine having' great flexibility, adaptability and adjustability in operation.

It'is also among the objects of the invention to provide various mechanical movements whereby the desired functions may be readily obtained.

In practicing the invention, I provide a sewing machine of any ordinary or usual type, such as the lock stitch or chain stitch machines. n the bed of the machine I mount a button clamp which is so constructed as to be capable of holding various sizes and types of buttons varying in thickness and in spacing and number of holes in thebutton. The button clamp is reciprocated laterally during the sewing operation so that a needle will alternately enter two of the holes of the button. When a button with four holes is to-be sewed on a piece of fabric, I may provide two needles on the needle bar which are adjustable for the different spacing of holes or I may provide a single needle which in a regular sequence produces stitches in one pair of button holes, is shifted and then produces stitches in the other pair of button holes.

An important featureof the invention is an arrangement whereby after a certain predetermined number of stitches have been taken in the button, the machine is automatically stopped. It includes means whereby in a very simple manner, at the will of the operator, the number of stitches automatically made by the machine is changed.

In the accompanying drawings, constituting a part hereof, and in which like reference characters indicate like parts,

Fig. 1 is a side view of a sewing machine made in accordance with the present invention, some parts being broken away for clearness;

Fig. 2 is a rear view of said sewing machine;

Fig. 3 is a fragmentary plan view showing some details of the stitch determining mechanism;

Fig. 4 is a detail view showing the belt shifting arrangement;

Fig. 5 is afront view of the sewing machine;

Fig. 6 is a fragmentary plan view of the bed of the machine showing the needle plate;

Fig. 7 is a similar view more in detail of the needle plate; i

Fig. 8 is a view looking upwardly, showing the adjusting device on the button clamp;

New York, N. Y.

1937, Serial Naisasoa (01. 112-110) I Fig. 9 is a cross-sectional view taken along the line 3-9 of Fig. 1;

Fig. '10 is a front view of a modified sewing machine;

Fig. 11 is a side view thereof, and

Fig. 12 is an elevational view showing a detail of the adjusting mechanism for the needle Fig. 13 is a side elevational view taken from the opposite side of Fig. 12, and i 7 Fig. 14 is a cross-sectional view taken along the line "-14 of Fig. 13.

' The sewing machine comprises the usual bed l, standard 2, overhanging arm 3, and head 4. The main shaft 6 has member 6 secured thereto and pulley Lhaving-a flange I, secured thereto,

a pin 3 projecting from member 6 into flanged portion 8 bearing against shock absorbing springs therein (not shown). An idler pulley l0 alongside the driving pulley 1 is providedwith a bracket Ii held by screw l2. The needle bar 13 is reciprocated by the usual connection from shaft 5.

An. eccentric l4 formed on shaft 5 carries a link IS, the lower end of which projects beneath the bed I and is linked to one arm of an angular lever l6 fixed on rocking sleeve 16'. The other arm is connected to hook shaft I! for transmitting the rotary motion of shaft 5 into oscillating motion of shaft l1. A belt shifter l9 having an opening 20 for the belt is secured on slide 2| by bolt 22. The slide moves in guide 23 and has 1 a diagonal slot 24 therein.

A stop member 25 is adapted to be held in recess 26 of member 8. Said stop 25 is provided with a pin 21 operating in slot 24. The lower, end 28 of stop 25 has a pivot 29 carrying a rod 30 which is secured to a foot pedal or the like. The cover 3| of guide 23 has a vertical slot 32 therein to allow movement of pin 21.

The stop member has secured thereto a bar 33 having an angular extension 34 passing through a sleeve 35, having a spring therein and supported in bracket 36 with an adjusting screw 31 for varying the tension of said spring. Cooperating with the bar 33 is a latch 38 having shoulders 39 and 40 for holding bar 33 in two different positions. Said latch extends upwardly and is pivoted .to the frame of the machine at 4|. The upper end thereof is pivoted to the arm 42' at 42 and the lower end of arm 42' is also pivoted at 42. Horizontally extending arm 44 forms a crank with arm 42' and said crank is pivoted to the frame at 43. The free end of arm 44 has a pivot 45. A finger 46 is provided with a slotted 55 form of end fitting over pivot 45 so that a sliding fit is obtained, as shown in Fig. 1.

A cylinder 41 is mounted on shaft 48 having a worm gear 49 secured thereto, which meshes with-worm 58 secured on shaft 5. A spring 5I bearing against pin 52 and by pressing upwardly on arm 44 tends to force finger 46 down and holds the finger 46 in operative position. The cylinder 41 has several sets of projections thereon. As shown in Fig. 3, there is a single projection 53 on the right hand section of cylinder 41, and on the section of cylinder 41 immediately to the left thereof there are two projections 54 spaced 180 degrees apart. To the left thereof on the next adjacent section of cylinder 41 is a third set of three projections 55 spaced 120 degrees apart.

The finger 46 is pivoted on shaft 56 which extends as shown at 51 to the right and is secured at 58 to movable sleeve 59. An inner sleeve 68 secured to the arm 3has a diagonal slot 6I into which there extends a pin 62 (Fig. 2) secured to sleeve 59. A series of latch members 63, shown as of thespring pressed ball type, holds sleeve 59 in positive relation to member 68. A cover 64 is held on the top of the machine by screw 65.

In the bed of the machine there is fitted a slide member 66 having upstanding arms 61 having overhanging portion 68 for holding and adjusting the button clamp. Arms 61 are held on slide 66 by a screw I15 and slot I16 in the base of arms 61. At the rear of said slide is a recess into which there fits a pivot 69 secured to arm 18 pivoted at H and carrying an angular member 12 operating in slot 13 of vertical plate 14- A set screw 15 passing through plate 14 is adapted to hold said member 12 in adjusted position. An

opening 16 in standard 2 allows access to set screw 15 for adjustment purposes. At the upper end of plate 14 there is connected to pivot 11 a forked member 18, the upper end of which is guided by shaft- 5. A gear 19 fixed to said shaft meshes with a corresponding gear 88 on stub shaft 8I, which is held in bearings 82 and 83. A cam 84 fixed to gear 88 has rollers and 86 secured to follower 18 fitted therein.

Anan gular member 81 has legs 88 fitted loosely around pin 89 and a stop member 98 is fixed to pin 89 by a set screw 81' or the like. A threaded extension 9| of said pin cooperates with corresponding threads in member 92 secured to arm 61. A slotted head 93 thereon allows for movement of pin 89 and adjustment of the position of member 81. In-order to hold the button clamp normally on the work, there is provided a member 94 secured in extension 68""and pressed by adjustable spring firangement 95.

The button clamp is provided with a pair of button jaws 96 and a button stop 91, said jaws being provided with rollers 98 whereby a button 99 is held between the same. In order to raise the button clamp, there is provided an extension I88 on arm 81 connected to an upwardly extending bar I8I having a lateral extension I82 and secured to arm I83 pivoted at I84, and having pivoted at the rear end I85 thereof a downwardly extending rod I86 leading to a foot pedal or the like. On extension I82 is a pin I81 operating in slot I88 of member I89 pivoted at II8. Said member has pressure members III adapted to press on bar II 2. Secured to the ends of said bar on the outside of the machine are two flat, thin, flexible plates II3 pivoted at H4. The lower ends thereof have openings I I5 which serve as thread'guides. The movement of members I II presses bar I I2 forwardly and similarly moves the upper ends of plates II3. Because of pivot II 4 the lower ends of H3 are pressed against the head 4 to clamp the thread.

slotted member II8 having a needle clamp H9 at the lower end thereof.

The jaws 96 are pivoted at I28 and have pins I2I at an intermediate point. An angular plate I 22 has a pair of converging slots I23, as more particularly shown in Fig. 8. A plate I24, having a slot I25, is pivoted to arm 81 at I26 and has an angular memb'er I21 extending beyond the edge of arm 81 with a hand-operated adjusting screw I28 passing through the same and bearing upon the side of arm 81. A pin I29 passes through members I 22 and I 24 and into a guide slot I38 in arm 81. Spring I3I held by screw I32 presses the member I22 in the forward position. Secured by screw I33 to extension I34 of slide 66 is a plate I35 having a pair of laterally elongated openings I36 therein. Underneath said plate is a needle plate I31 having a cut-out portion and a supplemental needle plate I 38 fitted transmitted through pin I4I to member I39 causing plates I31 and I38 to move in the oppo- -site direction. Each of said plates is provided with an elongated slot I42 having a hook I43 therein. The space I44 is intended to allow adjustment of the relative positions of the needle plates by means of screw and slot arrangement I45.

With reference-to the modification shown in Figs. 10 to 14, inclusive, there is provided the ordinary needle bar I3 which is held in sleeve I58, the latter being pivoted to the top. of the head of the sewing machine by pins I 5 I; A similar sleeve I52 at the lower end of the head of the machine operates in guide I53 and an arm I54 is secured thereto. A shaft I55 extends horizontally from arm I54. A cam I56 secured to shaft 48 has lifting surfaces I51 cooperating with a roller 'I58 secured in follower I59. To shaft I55 is fixed slotted arm I6I having screw I62 operable therein by head I63. A block I64, rectangular in crosssection fits in the said slot and has screw I62 threaded therethrough. A locking screw I65 holds it in adjusted position. Extending end of I 64 fits in slot I68 of member I66 which is integral with collar I61 held on shaft I68 by set screw I12. Bracket I69 is fixed by screw I18 to the machine and has a slot I1I adapted to be alined with I68. In the position shown in Fig. 13, motion from shaft I68 is transmitted through I61, I66, I64, I6I, I55 and I54 to shift the needle. When block I64 is in slot I1I, the motion of shaft I68 is not transmitted.

In the operation of the machine for the sewing on of a button having four holes, the mechanism is in the position shown in Fig. 1. By the adjustment of screw I28, the jaws 96 may be set at any desired point and the stop 91 is adjusted by means of its adjusting screw so that the button 99 fits snugly between the jaws, being held in place by rollers 98 which facilitate the insertion and removal thereof. By means of screw 93, the arm 81 is adjusted forward or backward by sliding arm 81 on pin 89 until the fixed needle in clamp I I5 is in alignment with the rear pair of holes in the button. Needle clamp II 9 is then adjusted by loosening screw Ill and shifting said needle clamp until it is in line with the front set of holes in the button, and screw II I is then tightened. Similarly, needle plate I38 is adjusted by means of screw I45 until it is'in alignment with the needle of needle clamp H9. The lateral movement of the button clamp on its base 66 is then comes in contact with one of the sets of projections 53, 54 and 55, respectively. When it is desired, for example, to have twenty-four stitches, the sleeve 59 is rotated until the parts are in the position shown in Fig. 3 with the finger in line make eight stitches.

with projection 53. If the finger is on the second set of projections 54, the machine becomes set to make twelve stitches, and if the finger is in line with projections 55, the machine is set to It is, of course, apparent that the number of stitches for which a machine is designed may be varied at will and that the numbers given herein are illustrative and not limiting.

Assuming the parts are all in position for operation as described above, and the setting is as shown in Fig. 1, with the fabric in place under the button clamp, rod 39 is pulled downwardly thereby pulling projection 25 out of socket 26 and releasing member 6. At the same time, bar 33 is removed from shoulder 39, pulled downwardly against the compression of spring in sleeve 35, and into engagement with shoulder 40 of the latch 38. The downward movement of stop 25 causes a similar movement of pin 21 in slot 24 of slide 2| causing said slide to move to the left, in Fig. 1, thereby shifting the belt from the idler I0 to the driving pulley 'I.

The rotation of pulley I is transmitted to the shaft 5 through the pin 9 and the shock-absorbing springs causing the normal reciprocating motion of the needles. At the same time, the rotation of the shaft is transmitted through gears I9 and 89, cam 84, rollers 85 and 86, to the follower I8, which is caused to move in an up and down direction. This motion is transmitted by plate 14 through arm 12 to link I9 and thus to base 66 of the button clamp, causing lateral reciprocating movement of .said button clamp.

Thereby, the needles first penetrate one set of holes in a button and then as the needles travel upward, the button clamp is shifted to the right or left as the case may be and on the downward stroke of the needles, they enter the other pair of holes. The spring keeps the button in proper position relative to-the fabric on which it is being stitched.

Simultaneously, the shaft 5 causes rotation of shaft 48 through worm and worm gear 50 and 49, causing a rotation of the cylinder 41 in a clockwise direction, as shown by the arrow, until a projection, as for example, projection 53, comes in contact with the finger 46 and raises the same after the desired number of stitches has been '1 qt, sa 11 a made. As the finger 46 is raised, it is pivoted about pin 55, the rear end thereof moving downwardly at connection 45, causing the left hand side of link 44 to move downwardly as shown by the arrow, and the angular portion 42 to move to the right, as shown by the arrow, causing latch 38 to move to the left, releasing bar 33 from shoulder 40. Under the action of spring in sleeve 35, the bar is quickly forced upwardly causing stop 25 to engage in its socket 26, stopping the pulley I and at the same time causing pin 21 to move upwardly in diagonal slot 24 and shifting the belt onto the idler III.

In the reciprocating movement of the needles, they pass through openings I35 of ,plate I35 and then through openings I42 in needle plates I31 and I38. In some cases, it has been found that the loops formed by the passage of the needles are not sufliciently open so as to be positively caught by the hooks beneath the bed of the machine. To prevent any failure of a hook to hold a loop, there is provided a hook I43 in opening' I42:which positively holds-the loop open and 'thus makes certain the catching of thestitch in the next reciprocation.

After the sewing operation is complete, rod I95 is pulled down, raising bar IUI which in turn raises arm 81 of the button clamp against the action of the spring 95. At the same time, the upward motion of bar IIII causes a downward movement of clamping fingers III on the bar II2 which force thread guides II5 against the head of the sewing machine, holding the thread in place. The work may now be removed from the machine, a new button inserted, and the operation repeatgd.

In some cases, a thread may break accidentally so that one of the needles has not performed the stitching operation. In such case, the button is allowed to remain in its place, the machine is again started and one of the thread guides H5 is presseddown by hand so as to prevent feeding of thread ther-ethrough, whereas the other thread guide is allowed to operate so that it now would stitch the pair of button holes which were omitted in the first operation.

In the modification shown in Figs. 10 to 14,

inclusive, a slightly different mode of operation ;enedr and-gscrew I62 is turned until the block I64,"'fconnected to member I6I, has been shifted he left, as shown in Fig. 12, until I position, the needle shifting mechanism is inoperative.

The material and the button to be sewed thereon are placed in position on the machine which is started as before and caused to operate by simple reciprocation of the needle, and after the predetermined number of stitches has been made, the machine automatically stops.

When a four-hole button is to be sewed onto a fabric, the button clamp is adjustedin such a position that the needle is aligned with one of the pairs of button holes. Screw I62 is turned until block I64 is in slot I68 andthe adjustment is continued until by trial it is found that the amount of shifting of the needle is equal to the distance between a pair of holes in the button.

In the modification shown in Fig. 11, there is ftstheislot I68 and is completely in slot a cam I56 operating on the shaft 48. Assuming that the device is set to make twenty stitches in a button and the starting position is as shown in Fig. 11, the cam moves in the direction of the arrow allowing stitching to be made between one pair of holes in the button and after ten stitches have been made, the cam shifts fork member I59, pushing the same down; the downward movement of rod I60 causes a downward movement of boss I61, resulting in oscillation of bar I55 about its pivot. Said oscillation is transmitted through arm I54 to block I52 operating in slot I53, shifting the needle to the left, opposite its position shown in Fig. 10. This places the needle in alignment with the second set of holes in the button and stitching continues for another ten stitches, or until the cam I56 is again in the position shown in Fig. 11. At this time, the stop mechanism operated through finger 46 and associated parts stops the machine and the operation is complete.

In a similar manner, if for example it is desired to make say a total of ten stitches in a button having four holes, the cam I56 is in a position such that part thereof is in contact with roller I58. Upon the operation of the machine, five stitches are made in a pair of openings, the lift I51 comes in contact with -roller I58 causing movement of bar I60 and shifting the needle to the other set of holes where five more stitches are made, and then the stop mechanism cuts off the machine. The cam is now in a position with part I16 in contact with roller I58 and is ready for the next operation. The machine shown in Fig. 1 may be used with a single needle to sew a 2-hole button. When it is used with a single needle to sew a 4-hole button the needle shifting mechanism of Fig. 11 is superposed on the mechanism of Fig. 1 by shaft 48 either in front of or behind the same. In such case the needle bar I3 of Fig. 1 is pivoted in head 4 at its upper end and is connected to the shifting mechanism of Fig. 11 at its lower end.

Although I have described my invention setting forth two specific embodiments thereof, it will be apparent to those skilled in the art that various modifications may be made within the spirit of the invention. Various other means than shown.

for performing the several functions outlined may be substituted for the specific mechanisms shown I and described. It is, of course, well known that various mechanisms are the equivalent of those here illustrated andthe present invention contemplates the use of such equivalents. The location of the various parts may. of course be changed at will but retaining the function described herein. While the various mechanisms have been described in connection with a button" sewing machine, it is obvious that they may be used in machines for other purposes, as for example, there are many situations in which it is desirable to have a stop mechanism for limiting and predetermining the number of stitches to be made in a piece of work. From the above, it will 1. A button sewing machine comprising a ro- I tating shaft, stitch forming mechanism operated thereby, a button clamp in proximity to said mechanism, means for reciprocating said clamp in time with said mechanism including aconnection to said shaft having means for adjusting the throw of said clamp, means for stopping the rotation of said shaft at predetermined intervals including a stop member, a latch for tripping the same, a rotating member having a plurality of sets of projections the spacing of which represents a predetermined number of stitches, and a finger adapted to contact with one of said sets, whereby the contact of a projection with said finger releases said latch.

2. A button sewing machine comprising a rotating shaft, stitch forming mechanism operated thereby, a pair of needles and means for adjusting the spacing thereof, a button clamp in proximity to said mechanism, means for reciprocating said clamp in time with said mechanism including a connection to said shaft having means for adjusting the throw of said clamp, means for stopping the rotation of said shaft at predetermined intervals including a stop member, a latch for tripping the same, a rotating member having a plurality of sets of projections the spacing of which represents a predetermined number of stitches, and a finger adapted to contact with one of said sets, whereby the contact of a projection with said finger releases said latch.

3. A button sewing machine comprising a rotating shaft, stitch forming mechanism operated thereby, a button clamp in proximity to said mechanism, means for reciprocating said clamp in time with said mechanism including aconnection to said shaft having means for adjusting the throw of said clamp, said clamp having a plurality of button holding jaws movably mounted and rollers on said jaws for gripping a button, means for stopping the rotation of said shaft at predetermined intervals including a stop member, a latch for tripping the same, a rotating member having a plurality of sets of projections the spacing of which represents a predetermined number of stitches, and a finger adapted to contact with one of said sets, whereby the contact of a projection with said finger releases said latch.

4. A button sewing machine comprising a rotating shaft, stitch forming mechanism operated thereby, a button clamp in proximity to said mechanism, means for reciprocating said clamp in time with said mechanism including a connection to said shaft having means for adjusting the throw of said clamp, said adjusting means having an angular pivoted barcooperating with a second bar and aset screw for holding said bars in adjustable relation, means for stopping the rotation of said shaft at predetermined intervals, including a stop member, a latch for tripping the same, a rotating member having a plurality of sets of projections the spacing of which represents a predetermined number of stitches, and a finger adapted to contact with one'of said sets, whereby the contact of a projection with said finger releases said latch.

5. A button sewing machine comprising a rotating shaft, stitch forming mechanism operated thereby, a button clamp in proximity to said mechanism, means for reciprocating said clamp in time with said mechanism including a conthe rotation of said shaft at predetermined intervals including a stop member and a belt shifter operatively securedthereto, a latch for tripping 7 the same, a rotating member having a plurality of sets of projections. the spacing of which repsaid finger releases said latch and shifts the belt to idle position.

6. A button sewing machine comprising a rotating shaft, stitch forming mechanism operated thereby, a button clamp in proximity to said mechanism, means for reciprocating said clamp in time with said mechanism including a connection to said shaft having means for adjusting the throw of said clamp, means for stopping the rotation of said shaft at predetermined intervals including a stop member, a latch for tripping the same, a rotating member having a plurality of sets of projections the spacing of which represents; a predetermined number of stitches, a finger adapted to contact with one of said sets, whereby the contact of a projection with said finger releases said latch, and means for adjusting said finger to cause it to contact with a different set of projections.

7. In a sewing machine having a rotating shaft and stitch forming mechanism, mechanism for predetermining the number of stitches to be latch and stopping of said shaft and means con- 1 nected to said stop member for shifting the belt made comprising a stop member, a latch for holding the same in inoperative position, an operating finger connected to said latch, a tripper for said finger actuated by said shaft, a set of tripper elements thereon, the distance between the same representing a predetermind number of stitches whereby the rotation of said shaft causes movement of said finger, moving of said latch and stopping of said shaft.

8. In a sewing machine having a rotating shaft and stitch forming mechanism, mechanism for predetermining the number of stitches to be made comprising a stop member, a latch for holding the same in inoperative position, an operating finger connected to said latchf a tripper for said finger actuated by said shaft, a set of tripper elements thereon, the distance between the same representing a predetermined number of stitches, whereby the rotation of said shaft causes movement of said finger, moving of said of said machine.

9. In a sewing machine having a rotating shaft and stitch forming mechanism, mechanism for predetermining the number of stitches to be made comprising a stop member, a latch for holding the same in inoperative position, an operating finger connected to said latch, a tripper for said finger actuated by said shaft, a set of tripper elements thereon, the distance between the same representing a predetermined number of stitches, whereby the rotation of said shaft causes movement of said finger, moving of said latch and stopping of said shaft, means connected to said stop member for shifting the belt of said machine and means for-retracting said stop member to inoperative position.

10. 'In a sewing machine having a rotating shaft and stitch forming mechanism, mechanism for predetermining the number of stitches to be made comprising a stop member, a latch for holding the same in inoperative position, an operating finger connected to said latch, a tripper for said finger actuated by said shaft, a set of tripper elements thereon, means for moving said finger to engage various tripper elements, the distance between the same representing a predetermined number of stitches, whereby the rotation of said shaft causesmovement of said finger, moving of said latch and stopping of said shaft.

11. In a sewing machine having a rotating shaft and stitch forming mechanism, mechanism for predetermining the number of stitches to be stopping of said shaft.

12. In a sewing machine having a rotating shaft and stitch forming mechanism, mechanism for predetermining the number of stitches to be made comprising a stop member, a latch for holding the same in inoperative position, an operating finger connected to said latch by a series of pivoted links, a' tripper for said finger actuated by said shaft, a set of tripper elements thereon, the distance between the same representing a predetermined number of stitches, whereby the rotation of said shaft causes movement of said finger, moving of said latch and stopping of said shaft.

13. In a sewing machine having a rotating shaft and stitch forming mechanism, mechanism for predetermining the number of stitches to be made comprising a stop member, a spring tending to move the same into operative position, a latch for holding the same in operative position, an operating finger connected to said latch by a series of pivoted links, a tripperfor said finger actuated by said shaft, a set of tripper'elements thereon, the distance between the same representing a predetermined number of stitches, whereby the rotation of said shaft causesmovement of said finger, moving of said latch and stopping of said shaft.

14. In a button sewing machine having a rotating shaft and stitch forming mechanism and a button clamp, means for reciprocating the same comprising a cam geared to said shaft, a a

follower operatedthereby, a connection between said follower and clamp whereby the rotary motion of said shaft causes reciprocation of said clamp, saidponnection including a pivoted angular memberthe vertical arm of which is se-. cured to said clamp and the horizontal arm is secured to said follower.

15. In a button sewing machine having a rotating shaft and stitch forming mechanism and a button clamp, means for reciprocating the same comprising a cam geared to said shaft, a follower operated thereby, a connection between said follower and clamp whereby the rotary motion of said shaft causes reciprocation of said clamp, said connection including a pivoted angular member the vertical arm of which is secured to said follower, the upper end of said follower 1 being guided by; said shaft and the lower end being pivotally connected to a bar, said bar constituting part of said connection and being secured to said angular member.

17. In a sewing machine having a rotating shaft and stitch forming mechanism, a needle bar operated by said shaft, a needle clamp in fixed position on said bar, a second needle clamp on said bar, means for adjusting the same laterally with respect to the first named clamp, a needle plate on the bed of said machine, a pair of needle openings therein, a reciprocating button clamp, and a connection between said clamp and plate whereby the plate is caused to reciprocate oppositely to the clamp.

-18. In a sewing machine having a-rotating shaft and stitch forming mechanism, a needle bar operated by said shaft, a needle clamp in fixed position on said bar, a second needle clamp on said bar, means for adjusting the same laterally with respect to the first named clamp, a

needle plate on the bed 01' said machine, a pair of needle openings therein, and a pair of independent thread guides whereby pressure on oneprevents movement of its thread.

19. In a sewing machine having a rotating shaft and stitch forming mechanism, a button clamp for holding a button and means for causing stitches to be iormed in the holes of said button, a needle bar operated by said shaft to cause said .bar to be reciprocated vertically, means for shifting said bar ,in a direction substantially at right angles to the reciprocation thereof at predetermined intervals including a cam operated by said shaft and a connection be- -tween said cam and said bar including a split guide member, a slide therein, and means for adjusting the position of said slide in one or the other part of said split member, said cam causing shifting of said bar after the completion of a series 01' stitches through a pair of holes in a button.

JACOB BRUSSELL.

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