US353609A

US353609A - thompson

Info

Publication number: US353609A
Authority: US
Publication date: 1886-11-30
Anticipated expiration: 1903-11-30

Description

(No Model.) 7 Sheets-Sheet 1.

R. THOMPSON.

MAGHINE FOR SEWING SHANK BUTTONS T0 BOOTS, &c.

No. 353,609. Patented Nov. 30, 1886'.

By. z

[11 men to r,-

(asses;

7 Sheets-Sheet 2.

(No Model.)

B. THOMPSON.

MACHINE FOR SEWING SHANK BUTTONS T0 BOOTS, &c.

No. 353,609. Patented Nov. 30, 1886.

jq'zmsm;

[n veni'br;

N. PETERS, Phnln-Lilhngmpher, Washinglon. D. c.

(No Model.) 7 Sheets-Sheet 3.

R. THOMPSON.

MACHINE FOR SEWING SHANK BUTTONS T0 BOOTS, &c. No. 353,609. Patented Nov. 30, 1886.

N. PETERS. phnkruflwgmphen Washington. 0.12.

(No Model.) I 7 Sheets-Sheet 4. R. THOMPSON.

MACHINE FOR EWING SHANK BUTTONS TO BOOTS. 550.

No. 353,609. Patented Nov. 30, 1886.

12 be. 721 0 r;

MO M,

N PETERS, Pnowumn m hor. Washlnglon. D. C.

(No Model.) 7 Sheets-'-Sheet 5. R. THOMPSDN.

MACHINE FOR SEWING SHANK BUTTONS T0 BOOTS, &c. No. 353,609.

Patented'Nov'. 30, 1886.

N, Puzns. Phowumu m nu, wmm wn. D. c.

(No Model.) 7 Sheets-Sheet 6.

R. THOMPSON.

MAGHINE FOR SEWINGSHANK BUTTONS T0 BOOTS, '&c.

No. 353,609. Patented Nov. 30, 1886.

[71 ve ntar;

N. PETERS. Pholu-Lnhcgmpher, Washmgwn. nu

(No Model.) 7 Sheets-Sheet 7.

R. THOMPSON.

MACHINE FOR SEWING SHANK BUTTONS T0 BOOTS, &c.

No. 353,609. Patented Nov 30, 1886.

4 71-6 3 s e a;

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N. PETERS. PhclO-Lilhognphqr, Wnhinglon. D I;

UNiTEn STATES PATENT OFFICE.

ROSFJVELL THOMPSON, OF BRIDGEPORT, OONN.,ASSIG1\ OR TO THE MORLEY BUTTON SEXVING MACHINE COMPANY, OF BOSTON, MASS.

MACHlNE FOR SEWING SHANK-BUTTONS TO BOOTS, 80C.

SPECIFICATION forming part of Letters Patent No. 353,609, dated November 30,1886.

Serial No. 198,617. (No model.)

To all whom it may concern:

Be itknown that I, RosEwELL THOMPSQN, a citizen of the United States, residing at Bridgeport, in the county of Fairfield and State of Connecticut, have invented an Improved Machine for Sewing Shank- Buttons to Boots, Shoes, and other Fabrics; and I do hereby declare the following to be a full, clear, and exact description of the construction and opera- [0 tion of the same, reference being had to the accompanying drawings, making a part of this specification.

The object of my invention is to more closely and snugly secure shank -buttons to boots,

shoes, and other fabrics than has heretofore been done by the use of a cord or thread, and at the same time produce a form of stitch which insures strength, durability, and neatness; and my improvement consists in causing a straight needle-bar to oscillate alternately between the angles of fifty-five degrees and sixty-two degrees (more or less) during the operation of sewing the button to the fabric, so that a straight needle secured to the lower 2 end of said bar may pierce the goods at such an angle with respect to the face of the material to be sewed as to allow both the shank and body of a button to rest upon the fabric when presented to said needle during the entire pro- 0 cess of forming a stitch through the eye of the same; also, in the manner of operating the devices for controlling the main and locking loops which compose the stitch, and in the arrangement of certain mechanism for feeding the goods after the stitch is completed, as will hereinafter appear.

In the accompanying drawings, Figure 1 is a perspective view of my improved machine, showing the top, left side, and front as it appears when secured to a bench for practical use. Fig. 2 is a perspective view of a strip of material on which a series of shank-buttons have been sewed and then bent C-shaped, so as to clearly show the appearance of the stitch 5 made by this machine upon both sides of the fabric. Fig. 3 is a leftside elevation of the machine. Fig. 4. is a top view of the same. Fig. 5 is an enlarged left-side view of the front end of the projecting horn, showing some of the mechanism contained therein, together with presser-foot, needle, and extreme end of buttontrough. Fig. 6 is an enlarged top view of front end of projecting horn with top plate and feed-bar removed, so as to expose the internal mechanism. Fig. '7 is a right-side elevation of the machine, showing the construction and arrangement of the button-feeding mechanism. Fig. 8 is a front view of the machine, also showing button-feeding mechanism, but with needle-bar bearing certain 1e 6e vers and other operating devices removed. Figs. 9 and 10 are enlarged side and top views of a portion of the button-trough and all of the revolving button-table with hopper-bowl removed. Fig. 11 is an enlarged cross-section of the button-trough with shank button in feeding position. Fig. 12 is an enlargcdbottom View of the worm gear-wheel with ratchet and pawl, which revolve the button-shaft and table. Fig. 13 is a back view of the extreme end of the button trough, together with the lever which causes said trough to swing away from the button after the latter is secured in position by the thread. Fig. 14 isa bottom view of the machine, showing the positions of cams, driving-gears, levers, and other meehanism contained therein, and also the buttontrough and other devices which operate in connection with the projecting horn. Fig. 15 is a cross-section of the body of the-machine on line 1 1, Fig. 4, and a longitudinal section of the horn through the center, showing feeding mechanism and cam which operates the same. Fig. 16 is a top view of horn with top plate removed, and a sectional view of a portion of the lower half of thcbody of themachine, also showing feeding mechanism and operatingcams. Fig. 17 is an enlarged longitudinal section of front end of horn, showing feedpin and some other devices more clearly than in Fig. 15. Fig. 18 is an enlarged cross section of horn just in front of the feed pin and lifting rock'shaft, showing the manner of lifting said pin by the device on the end of the rockshaft. Figs. 19 and 20 are enlarged views of the device on the opposite end of the feedpin liftingshaftand portion of the cam which operates the same. Fig. 21 is a erosssection of the body of the machine on line 2 2, Fig. 4, and longitudinal section of horn through the cen- [O0 ter, showing the cam and lever which operate the needle-bar, lever, bar, and vibratingseg- 1 of the needle.

- hooks and locking-loop spreader.

mentwhich turn the needle-barand needle during the sewing operation, and main loop- -controlling mechanism. Fig-22 is a top view of horn with top plate removed and a portion of lower half of the body of the machine, showing certain cams and'levers and main loopcontrolling bar and hooks in center of horn. Fig. 23 is an enlarged longitudinal section of front end of horn, showing the main loop-controlling hooks just entering the loops each side Fig. 24 is an enlarged top view of front end of horn with top plate removed, also showing main loop controlling books just entering the loops each side of the needle.

25.is an enlarged longitudinal section of horn, showing main loop-controlling hooks drawing the main loop back against the needlejnst before the latter is raised. Fig. 26 is a view of the cams, levers, and portions of bars which operate the main loop-controlling Fig. 27 is a view of the cam, lever, and portion of connecting-bar which oscillate the needle-barbearings, and cam'on periphery which swings button-trough away from button after thelatter is secured in position by the thread. Fig. 28 is a sectional view of body of the machine on 'line 2 2, Fig. 4, showing the threadcontroller cam, lever, and rod; cam,lever, and portion of bar which tn rn needle-bar and needle, lockingloop spreader and bar, needle-ban bearing-support, and portion of treadlc-rod for lifting the latter. Fig. 29 is a top view of horn with top erating' thread controlling device, also rod and thread-controller, together with edge of takeup cam,take-np lever,'-and sliding bar, and cams and portions of bars for operating needleturning segment and locking-loop spreader. Fig. 30 is an enlarged side view of the front end of born, with tension-disks, take-up bar, and thread-controller inside, and with portion of needle-bar bearing, extreme end of buttontrough,and point of lockingloop spreader just entering loop below the needle-eye above.

Fig. 31 is a view of same mechanism as represented in Fig. 30, with the addition of the bevel-pinion on needle-bar and the lockingloop spreader passed through the loop and over the button. Fig. 32 is an enlarged top view of front end of horn, showing lockingloop spreader carried over the button and with the extreme end of button-trough away' from button. Fig. 33 is an enlarged view of front end of born, with locking-loop spreader passed over the button and button-stop in position, with extreme end of horn carried away from secured button. Fig. 34 is a side view of needle-bar bearings, showing thread-guard resting upon the needle to retain the thread in barb of same during its downward movement. Fig. 35 is an edge view of take-upcam and smallcamforliftingneedle-bearingsupportand presser-foot during the feeding of the fabric between the stitches. Figs. 36, 37, 38,39, 40, 41,42,413, and 44 are enlarged perspective ,the same.

Similar letters of reference indicate corre-.

sponding parts.

A is the. body, B is the arm, and O is the horn, of the machine. D is the needle bar bearing-support. E is the needle-bar bearing, pivoted to lower side of support. F is the needle-bar driving-lever. G is the needle-barlever-cam. H is the needle-bar-bearing oscillating connecting-bar. I is the needle-barbearing oscillating lever, and J is the cam for operating the same. K is the needle-bar turning-segment. L is the connecting-bar. M is the lever, and N is the cam for operating the same. 0 is the locking-loop spreader-bar. P is the lever, and Q is the cam for operating R is the button-trough. S is the bowl or hopper. T is the button-shaft. U is the button-shaft support or bearings. V is the button-table. W is the button-trough rock-shaft. X is the long button trough swinging lever, and X is the short or cam button-trough swinging lever. Y is the buttonshaft worm-gear, and Z is the driving-worm.

a is the needle-bar, having a spline-groove near its lower end.

' b is a bevel-pinion, supported between needle-barbearings, and having a spline at'its IfQ center to allow needle bar spline-groove and needle-bar to slide freely through the same.

a is the needle-bar carrier, having a hole through it to allow the needle-bar to turn freely inthe same, and retained in its proper position upon the needle-bar by means of collars each side, which are secured to said needle-bar.

0 is the needle-barconnecting-rod.

d is an adjustable stud, which secures conmeeting-rod in such a position on the end of the needle-bar driving-lever as to give the required motion to the needle-bar.

eis the thread-guard, pivoted to the lower needle-bar bearing.

f is the button-stop, secured to lower needlehar bearing.

9 is the presser-foot, fitted to slide freely on the end of the arm of the machine, a slot being made through it where'the fastening-screw passes, and is caused to rise and fall in unison with needle-bar bearing-support by means of a screw in the hubof the latter passing through a stud which extends from the sliding portion of said presser-foot, as shown in Figs 1 and 4.

h is-the locking-loop spreader.

i is the thread-controlling device.

j is the thread-controlling rod. is and N are the lever and cam for operating the same.

Z is the double main-loop-controlling hook, the space between being about the amount of the diameter of the needle-blade.

m is the bar, and a and Q are the lever and I Atthe bottom of the worm-gear Y, as shown cam for operating the same.

0 is the feed-bar, fitted to slide in a bearing on the lower surface of the horncover plate, the portion extending in front of said bearing being bent sufficiently to cause the point of the feed-pin 0, which is at the extreme end of the same, to remain below the top surface of said horn-cover plate when not in practical operation, as shown in Figs. 5 and 17 by broken lines, but so as to be raised to pierce the goods by means of certain devices, hereinafter shown and explained, as shown in Fig. 44, just before the feed motion takes place.

19 is the feed-bar carrier.

q is the fced-carrier-supporting rod, on which said feedcarrier is fitted to slide.

1' is the adjustable roller-block, fitted to slide on the top of the feed-carrier. s is the adjusting screw, for changing the relative position of said roller-block with respect to the carrier and driving cani G, so as to make such distance between each stitch as is required.

tistlbe feed-point-lifting rock shafaupon the front end of which is a short lever for lifting the feed-pin. (Shown in Figs. (5, 17, and 18.) Upon the opposite end of said shaft is also a short lever,operated by the cam Q, as shown in Figs. 19 and 20.

u is the take-up sliding bar.

v is the take-up lever, and w is the operating-cam.

:c is the tension-disk.

y is the main driving-shaftjn body of machine, and z is the driving-pulley. The latter is secured to shaft 3, which extends quite through the body of the machine, and upon which is secured gear 4, which drives gear 5 upon the main shaft y, both gears being fitted to revolve just inside of the left wall of the body of the machine, as shown in Figs. 8 and 1a.

Near the opposite or right-hand wall of the body ofthe machine is a train of gears, (3, 7, and 8, which drive the button-shaft worm Z. (Shown-in Figs. 7 and 14.) Said worm is fitted to a hub extending from gear 8, the hub being fitted to revolve freely upon the right end of pivotshaft 9. The lower or cross bearings of the button-shaft support are also fitted to said hub, but so as to allow the'latter to turn freely in the same. Shaft 9 is the pivot for needlebar bearing-support and needle-bar drivinglever. Shaft 10 is the pivot for levers M, P, and I, and is supported by right and left sides of body of machine.

11 is a bracket, upon which levers 7c and n are pivoted.

12 is a stud passing through an opening in the arm of the machine and entering and secured to the needle-har bearing-support, so as to be in motion with the latter, the opposite end of said stud extending under the buttoutrough in such a manner as to allow the but ton-trough to rest upon it, and thus rise and fall with stud, needle-bar bearing-support, and other mechanism attached thereto.

in Fig. 12, isa ratchet, 13, pawl 14, and spring 15. The worm-gear is fitted to turn freely on the vertical button shaft; but the ratchet is secured rigidly to the same, so that by means of the pawl as an intermediate devic'c said vertical shaft may be connected or disconnected with the worm-gear, as desired.

Upon the left-side hub of take-up cam 10 is an adjustable ring, 16, (shown in Figs. 22, 29, and 35,) which has upon it a small cam, 17, (shown in Figs. 21 and 28,) for the purpose of lifting the needle-bar bearing-support, presserfoot, and other devices attached to said support during the feeding of the goods.

The spiral spring 18 upon the feed-carrier supporting-rod, q, (shown in Figs. 14', 15, and 16,) is for the purpose offoreing the carrier and feed-bar back to st arting position after the feed vis completed, and spiral spring 19 (shown in Fig. 29) is for the purpose ofdrawing back the take-up mechanism after the operation of the same. The small cam 20 on periphery of ring J (shown in Figs. 3, 7, and 27) is for the purpose of lifting the short lever X, and consequently swinging the extreme end of buttontrough away from button during the throwing of the locking-loop over the latter.

I will now describe the practical operation of this machine with reference to the accompanying drawings.

A quantity of shank-buttons is placed in the hopper-bowl, as shown in Fig. 1. Then a ball or spool of thread is placed in some convenient position near the machine and the end of the thread passed through the small wire staples near the baseof thehorn,aud then through the small hole in the lower side of the horn near the center. as shown in Figs. 1 and 3. Then said thread is passed around the tensiondisk and small roll at the extreme end of the take-up bar, and then around the small roll under the thread controlling device and through the eye in the end of the same, as shown in Figs. 5, 6, 30, 3l,aud perspective fig urcs, Sheet 7, a sufficient amount of thread be iug drawn through said eye to form the main loop, the needle and bar during this time be ing raised to their highest pointand most vertical position, asshown in Figs. 1 and 15. Then the needle-bar hearing-support and presserfoot are raised by means of a treadle connected with the wire rod which hangs from the back end of said ueedlehar bearing support, and a boot, shoe, or other fabric on which buttons are to be sewed is placed in a proper position under said presscr-l'oot, power being nowapplied to the machine by causing the drivingpullcy to revolve in the direction indicated by the arrow drawn upon the same. The needle will first pierce the goods outside and just back of the button-eye, as shown in Fig. 5, the buttons in the meantime passing down the inclined hopper-trough, as shown in Fig. 1, the first one reaching the extreme end of said trough and placed and retained in its proper position by means of the button-stop and spi- ICO IIO

.- have an upward movement, causing the thread ral formof the end of the trough, as shown in- Figs. 1, 4, 5, 8, 13. and 33. The thread-controller will now cause the surplus thread to be thrown against the blade of the needle, as shown in Fig. 6, after which the needle will to fall into the barbof the same, which at this time is in a position to takerit, said needle continuing its upward motion and drawing the main loop through the fabric until it. reaches its highest point, as shown in Fig. 36, the eye of the thread-controller being in the meantime thrown back, as shown in Figs. 29 and 36. While the needle isat its highest point,- the upper end of theneedle-bar hearing will be thrown back by the operating mech' anism, after which a downward movement of the needle-bar and needle takes place, the loop of thread being retained in the barb of the needle by means of the guard in the man-- ner shown in Fig. 34. The needle now passes through the eye of the button and then through the fabric, carrying with it the loop of thread until it reaches its lowest point, as shown in Fig. 23, alter which the main loop controllerhooks enter said loop by passing each side of the needle, asshown in Fig. 23, and are car.- ried slightly forward, so as to remove the loop from the barb, as shown in Fig. 37. The needle is now again raised to its highest point, without a thread in the barb of the same,when the upper end of the needle-bar bearing will be thrown forward by the operating mechanism and the needle again forced through the fabric in its first place outside of the buttoneye. The main loop-controller, which has retained the loop during the upward and downward motion of the needle, now draws said loop back against the needle-blade in the manner shown in Figs. 25'and 38, after which the needle is again raised, causing the loop to fall into the barb during its upward movement,

the hooks in the meantime having a backward motion, as shown in Figs. 25 and 38 by arrows drawn upon the same. The upward movement of the needle carries the loop through the fabric, but only a sufficient distance above to allow the point of the needle to pass over the button-eye, after which another backward movement of the top end of the needle-bar bearing takes place,eausing the needle to again swing over the eye of the button, carrying with it the short loop of thread it still retains in the barb. Now another downward motion is given to the needle, but only a sufficient amount to leave the barb and loop just above the button-eye, in which position ahalf-revolution is given to the needle and bar by means of the small pinion, vibrating segment, and other operating mechanism, leaving the loop and barb of the needle as represented in Fi 39, after which the downward motion is con tinued, leaving the short loop around the blade of the needle, just above the button-eye. After the barb of the needle passes below the fabric the needle is turned back about onethird of a revolution, and so retained until it reaches itslowest point, when the threadcontrolling device again throws the thread against the needle in the manner shown inFig. 40, afterwhich the needle is again raised, causing the thread to fall intothe loarbof the needle during its upward movement, as before.

This loop of thread is now drawn through the- 'point of the loop-spreader is forced into the loop by means of the operating mechanism in the. manner shown in Fig. 30, and as the motion is continued the loop is spread and carried out of the barb of the needle in the manner shown in Fig. 42, the needle duringthis time remaining at rest, and the extreme end of the button-trough moving away from the button sufficiently to allow the right curved wire under the spreader topass between the secured and succeeding button, and by the end of the trough, as shown in Figs. 32, 33, and 43, the motion of the spreader and wires being continued until they pass over the body of the button about in the position shown in Figs. 31, 32, and 43, after which the take-up mechanism draws the loop from the spreader until it closes around the shank of the button in the manner shown in Fig. 44, when the stitch is completed. At this stage the feedpin is' raised by the operating mechanism and enters distance as is required to place the succeeding button in its proper position upon the mate rial, the end of the button-trough, p spreader, top end of needle-bar bearing,and all devices connected with the forming of the stitch beingin the meantime brought into their proper positions for commencing work, when the sewing operation is repeated, as above described, until the required number of buttons 'are secured to the boot, shoe, or other fabric.

In consequence of theinelination of the button-shank while it is presented to the needle, the final or looking loop slides down said shank, when it is drawn by the take-up mechanism until it is limited in its progress by the main threads, thus presenting a snug and neat appearanee to the upper as well as the under side of the stitch. After the fabric is removed from the machine, the buttons may be raised to a vertical position by the fingers, or otherwise, as represented in Fig. 2.

I am aware that prior to my invention machines have been made to attach shank-buttons to fabrics by the use of a cord or thread, as

Well as by other means. I therefore do not claim such combination, broadly; but

What I do claim as my invention, and desire to secure by Letters Patent, is

1. In a machine for sewing shanlcbuttons to fabrics, mechanism for successively presenti n g the buttons to the needle in such a manner as to cause both the body and shank of each button to rest upon the material during the formation of the stitch through the eye of the same, in combination with a fabric-supporting arm and an angular alternately-vibrating reciprocating needle-bar, all constructed and operating sul'istantially as shown and described, for the object set forth.

2. The angular reciprocating needle-bar a, vibrated in such a manner as to cause the nee dle in the lower end to alternately pierce the fabric outside and inside of the inclined button-shank, in combination with the fabric-supporting arm and mechanism for turning the barb of the needle away from the end of the loops during the sewing operation, all constructed and operating substantially as shown and described, for the object set forth.

3. The double hooks Z, for retaining and controlling the main loop after itis forced through the fabric by the ncedle, and mechanism for operating the same, in combination with the fabric-supporting arm and reciprocating and alternately-vibrating needle bar, all constructed and operating substantially as shown and described, for the object set forth.

4.. The oscillating needle-bar bearings E, pivoted at the lowerend to the rising and falling needle-bar bearingsupport, and mechanism for operating the same, in combination with the reciprocating needle-bar, button-feed ing trough, and fabric supporting arm, all 0011- structed and operating substantially as shown and described, for the object set forth.

5. The vibrating segmental gear K, for turning the needle-barb away from the ends of thread-loops, and mechanism for operating the same, in combination with the oscillating neeble-bar bearings, reciprocating needle bar, pinion, button-trough, and fabric-supporting arm, and pivoted at lower end in line with the fulcrum ot the oscillating needle-bar bearings, allconstructed and operating substantially as shown and described, for the object set forth.

6. The horizontally-reciprocating lockingloop spreader h and mechanism for operating the same, in combination with the angular reciprocating and vibrating needle-bar and needle, needle-bar bearingsupport, buttontrough, main loopcontrollinghooks, and fabric-supporting arm,constructcd and moved in such a manner as to remove theloop of thread from the barb of the needle after it has entered said loop and then carry the loop over the body of the button sufficiently far to cause the loop to pass below the center ofthe same when drawn off the point of the spreader by the take-up mechanism,substantial ly as shown and described, for the object set forth.

7. The thread-guard e, in combination with the angular alternately vibrating and reciprocating needle-bar and needle, needle-bar bearings, button feeding mechanism, main 1oop-controller,and fabricsupportingarm,and constructed in its body and pivoted at its upper end to the lower needle-bar bearing in such a manner as to cause the back edge of the same to rest upon the inclined neeedle during its vibratory motion by force of gravity, and thusby its own weight retain the loop of thread in the barb of said needle while the latter is changing from an upward to a downward movement, substantially as shown and described, for the object set forth.

8. The feed-pin 0 and the sliding elastic feedbar 0, in combination with the operating mechanism, fabric-supporting arm, and sewing and loop and thread controlling devices, con structed and arranged to operate in such a man ner as to cause said pin to enter the first hole made in the material by the needle duringthe sewing operation after the stitch is completed and then move the fabric back a sufficient distance to place the succeeding button in its proper position to be sewed, as described, for the object set forth.

9. The feed-carrier p,adj ustable roller-block r, feed-carrier supporting-rod q,and adj ustingscrew s,-in combination with the feed-cam G, feed-point-lifting rock-shaft t, feed-bar ,0, pin 0, fabric-supporting arm, and button-sewing mechanism, all constructed and arranged to operate substantially as shown and described, for the object set forth.

10. The rock-shaft t, in combination with the elastic feed-bar 0, pin 0, cam Q, fabricsupportiug arm, and button-sewing and fabricfeeding mechanism constructed and arranged to lift the extreme front end of the feed-bar and force and retain the feed-pin in the fabric during the feeding operation, as shown and de scribed, for the object set forth.

11. The stud 12, in combination with the needle-bar bearing-support D, button-trough R, needle-bar afand other sewing mechanism inserted at one end into the right side of said support, the opposite end extending un der the button-trough in such a manner as to allow the latter to rest upon and rise and fall with it, and thus cause the extreme end of the button-trough to move in unison with the presser-foot, and other devices attached to the front end of the needle-bar bearingsupport, as shown and described, for the object set forth.

12. The needle-bar lever F, in combination with the cam G, connectingbar c, oscillating and reciprocating needle-bar a, and other sewing mechanism, constructed and arranged to be pivoted on same shaft with the needle-bar bearing-support and having an arm extending back to be operated by the cam G, and the front end,which operates the needlebar, having a curved slot, the center of which is the arc of a circle, the radius of which is equalto the distance of the connecting-rod 0 between IIS centers, said are of a circle being described when the needle-bar and connecting-rod are at their lowest point, so that the top end of the connecting-rod may be moved and secured in such a position on the lever as will give the required upward stroke to the needle-barb and length of loop drawn up. by the same, without affecting or changing the relative position of said barb with respect to the thread and loop controllers when it is at its lowest point in the fabric-supporting arm,and operating as shown and described, for the object set forth.

13. The upright button-shaft and buttontrough support U, in combination with the button-trough It, hopper-bowl S, needle-bar bearing-support-D, gearing 6, 7, 8,and Y, and worm Z, constructed and arranged to receive the vertical shaft T, and having horizontal bearings at the lower end to receive the hub of gear 8, with sufficient space between said Dear ings to receive the worm Z, which is secured I to the hub of gear 8, said hub being pivoted to and revolving concentric with the same shaft on which the needle-bar bearing-supportand needle-bar lever are pivoted, so that the upright support U may act in unison with said devices, and the horizontal bearings be apivotal point for the hopper-trough, as shown and described, for the object set forth.

14. The combination of the loop-controller i, connectingrod j, lever 70, ring-cam N, secured to periphery of the needlebar turninglever N, fabric-supporting arm G,'and take-up mechanism,-all constructed and arranged to .control the thread before it is formed into loops and stitches, substantially as shown and described, for the object set forth. v

15. The combination of the sliding bar u,ten-

sion-disk w, lever 11, camw, fabric-supporting arm 0, and thread-controller '6', all constructed and arranged to take up the final or looking loop to complete the stitch before theoperation of the fabricfeeding mechanism, sub

stantially as shown and described, for the object set forth.

16. The combination of the button-table V, hopper-bowl S, button-trough R, vertical shaft T, worm-gear Y, ratchet-wheel 13, pawl 14, spring 15,and revolving worm Z,a1l constructed and arranged substantially as shown and described, the worm-gear Y being fitted to revolve freely on vertical button-shaft, and the ratchet-wheel 13, secured to said shaft, so that v the pawl 14, having a thumb-piece on oppo site side of turning center, may be conveniently used as an intermediate device to connoct or disconnect the vertical shaft and button-table attached thereto with the revolving worm-gear Y in regulating the'supply of buttons to the end of button-trough,for the object set forth. v

ROSEWELL THoMPsoN.

Witnesses:

L. S. (luring, T. M. PALMER, Jr.