US974170A

US974170A - Stitch-forming mechanism.

Info

Publication number: US974170A
Application number: US18658703A
Authority: US
Inventors: William V Miller
Original assignee: MANHATTAN MACHINE SUPPLY Co
Current assignee: MANHATTAN MACHINE SUPPLY Co
Priority date: 1903-12-26
Filing date: 1903-12-26
Publication date: 1910-11-01
Anticipated expiration: 1927-11-01

Description

W. V. MILLER. STITCH PORMING MECHANISM.

APPLICATION FILED 1320.26.1903.

Patented Nov. 1,1910. I

5 SHEETS-s511231* 1.

W/TNESSES:

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W. V. MILLER.

STITCH PORMING MEGHANISM.

APPLICATION FILED 1330.26. 1903.

Patented Nov. 1, 1910.

5 SHEETS-'SHEET 2.

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Q Q NH i om NI@ W. V. MILLER.

STITCH FORMING MECHANISM.

AIVPLIOATION FILED. DEO. 26, 1903.'

Patented N0v.1,1910.

W. V. MILLER.

STITCH PORMING MBGHANISM. APPLICATION FILED DBO. 26, 1903.

Patented N0v.1,1910.

5 SHEETS-SHEET 4.

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W. V; MILLER. STITCH FORMING M-ECHANISM.

APPLIoATloN FILED 1150.26, 1903.

Patented Nov. 1,1910.

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To all whom 'it may concern.'

l UNITED sTATEs PATENT EIcE.

WILLIAM V. MILLER, OF BROOKLYN, NEW YORK, ASSIGNOR TO TI-IE MANHATTAN MACHINE SUPPLY COMPANY, OF NEW YORK,'N. Y., A CORPORATION 0F NEVI YORK.

STITCH-FORMING MECHANISM.

Specification of Letters Patent.

Patented Nov., il, 1910.

Be it known that I, WILLIAM V. MILLER, a citizen of theUnited States, residing in Brooklyn, county of Kings, and State of New York, have invented a new anduseful Improvement in Stitch-Forming Mechanism, of which the following is adescription.

This invention relates to sewing machines of the chain-stitch type, and particularly to the stitch making organization thereof.

An object of m'yrinvention is to provide a chain-stitch sewing machine wherein the stitch forming mechanism is adapted for making what is commonly 'termed a lockchain stitch, viz., one in which the loops of needle-thread have4 intertwined with them a loop of looper-thread.` y

Another object of my invention is to pro- .vide a mechanism whereby, 1n a two-thread chain-stitch machine, the looper-thread will be properlyhandled so as to supply, and

control the supply of, the same in a manner.

to avoid drag and excess which occur in many stitch-forming organizations. 4

Another object of my invention is to provide a stitch-forming organization in which the take-tip mechanism can be adjusted so as to control the supply of the thread and manipulate the latter in a manner to locate the lock or junction between the needle-loops and the looper-thread in any position de-.

sired in or on the work.

Another ob'cct of my invention is to proyide a stitchforming organization in which the looper is rendered adjustable to adapt 1t to any timing` of the needle-bar and in conjunction with which adjustment the takeup may be adjusted so as to'properly mawhich will handle and contro1 the looper-` thread to a nicety and in the precise manner.

the looper.

. scription and with 4them all in viewj,-. myv

nlpulate the looper-thread in accordance ments of the looper, or the various effects o r disposition of the lock desired.

Another object of my invention is to provide a compact and simple organization con sistiiig of a stitch-forming mechanism including a looper, and a takeup mechanism required during the cycle of movement of my invention will be Other objects of the course of this de-v pointed out fduring mechanisms `with Figs. IV and tions invention consists in the parts, features, elements 'and combinations of elements and hereinafter described claimed.

Referring to the drawings illustrating one form or embodiment of my invention, FigureI represents in side elevation so much of the bed and overlianging arm of a cliainstitch sewing machine, 'as is deemed necessaryto properly portray my invention, the upper portion of the arm and head of the machine having been removed,.as also the work-plate2 in order not to tration; Fig. II is a toppla'n view of the bed-plate of the machine, the overhanging arm being' broken away, and the View illustrating the relative arrangement of the looper, 'take-up and feeding mechanisms; Fig. III is a rear elevation of the machine the view intending to illustrate merely the take-up mechanism, the driving-shaft and a certain few parts'carried thereby ;v Fig. IV is a skeleton view intended to be, in-nature,

diagrammatic so as to illustrate the relative position of the stitch-forming and threadcontrolling mechanisms as they are in the extreme backward4 position of the looper; Fig. V is a front end viewof a portion of Fig. IV, illustrating the relative arrange-4 ment of the parts of the take-up mechanism,

this view being disposed so as to bring the parts in Figs. IV and V in lateral alinement,

so that the eye may quickly discern the position of parts of -the take-up mechanism; Fig. VI shows in front elevation the needle and looper in juxtaposition corresponding V; Figs. VII, VIII and IX illustrate, respectively, the same parts iu the same way as Figs. IV, V and VI, the looper having moved forward, however, and entered 4the needle-loop and the other' parts beingA shown in corresponding positions; FigsjX, XI and XII are views, respectively, similar to Figs. IV, V and VI, the looper being shown as having reached its forward extreme and the other parts being 'shown in corresponding positions; Figs. XIII, XIV and XV are views, respectnv'ely,

similar to Figs. IV, V and VI, the looper being shown as receding or moving toward its rear extreme and being. substantially midway of said movement, and tl'se other parts being shown in corresponding posi- Figs. XVI, XVII and XVIII ai'e and figure the needle-loop retained outof the path of is an elevation views, respectively, correspondin with Figs. IV,`V and VI, showingthe need e as having reached a position in which the looperthread will be carried around the same and the needle during the descent of the latter beside the looper, and the other partsbeing shown in corresponding positions; Fig. XIX is a detail -view showing a portion of the driving-shaft, the eccentric and strap for actuating the take-up; Figs. XX and XXI show, respectively, a front and side elevation of one of the thread-guides employed in connection with the take-up; Fig. XXII is a top plan showing the take-up bracket journal and supporting shaft; Fig. XXIII showing a means for adjusting the thread-supporting or stop pin or post of the take-up mechanism; Fig. XXIV is a lan view of that corner of the bed-plate Whic is adjacent the looper mechanism, the illustrating the means for adjusting the. position ofy the rocking-frame for the looper-carrier; and Fig. XXV is a section on the line XXV-XXV of Fig. XXIV.

Primarily, itis to be understood that while a single thread-carrying looper has been illustrated in the embodiment of my invention made the subject of this application, a plurality of loopers and carriers can be adapted to coperate'with a plurality of needles to form a gang machine, and that irrespective of the number of loopers employed, the take-up mechanism is adapted to manipulate and control the threads thereof. It should also be understood that while the take-up made the subject of this a plication can be adapted tocoperate with a looper mechanism such as shown herein, the same may be employed in connection with other looper mechanisms o1" adapted to mak nipulate and control the needle-thread of any stitch-forming organization. Hence, I do not purpose limiting myself, in certain o my claims, to the combinations including my looper and take-up mechanisms; but purpose, in a series of claims. covering the broad, essential fea-tures of my takeup mechanism 72er se, or in any relation in which it is capable of performing its functions.

In the drawings, 1 is the bed-plate, 2 the arm supported thereby, 3 the head in which' the needle-bar 4, and presser-bar 5, are supported and operate. The needle 4, is held in the needle-bar in any suitable manner and thev l'n'esser-foot 5a, is supported by t-he presserbar in any usual way. The throat-plate is indicated by 5*. The driving shaft 1s indicated by C, the same, carrying at its rear cnd'the driving pulley and hand-Wheel 7, Iand adjacent thereto the eccentric 8, which actuatcs the strap 9, pivotally connected at its upper end -to the needle actuating-lever 10, pivoted at 11, to the arm 2, and pivotally plate is provided with connected at its forward endby means` of link 12, to the needle-bar 4. The lever 1.0, is provided with the depending arm 1 3, suitably connected tothe looper actuatmg-rod or pltman 14:, tbefront end of which isconnected by universal joint 15, to the looper carrier 16, carrying at its lower end the laterally extending journal-pin A17, to which it is clamped by means of the screw 18. A rocking frame. 19, affords a journal-bearing 20, for the pinv 17 of the looper carrier, the said pin turning freely in. said bea-ring 20.

The rocking frame is provided with the del plate 26, which is set in a recess 27, inthe bottom of the bed-plate 1. Said recess is of greater dimensions than the bracket-plate in order that the lattermay have adjustment longitudinally of the an enlarged aperture 28, and a corresponding aperture is provided in the bracket-plate 26, a clamping screw 26, carried by the bracket 24, extending through both said apertures to the top of the bed-plate where a washer 29, spans the aperture in the bed-plate under the head of the screw for the purpose of 'clamping the several parts rigidly together in any position ofadjustment required. By making thebra-cket-plate adjustable on the bed-plate and the bracketadjustable ont-he bracketplate the two adj ustments,-transVersely and longitudinally of the bedplate,`are provided for the looper mechanism.

The looper carrier 16 has a socket 30, in Fig. IV, in its free end into which extends the stem 31, of the looper 32, the latter being longitudinally grooved for t-he reception of the thread and providedat its forward end with the eye 33. Ythrough which the thread runs. The back of the looper adjacent the eye is provided with the rounded portion 34, which has the function of momentarily retaining. the needle-loop while the needle is passing down by the looper to have the looper-thread wrapped around it.

This will be further explained inthe description of operation of the parts.

The rocking frame 19, has its movement imparted by means of the strap 35, which is pivotally connected thereto by means of the journal-pin 36, clamped in the end of the strap and extending into the opposite journals 37, of the rocking frame 19, said strap at its other end surrounding the eccentric bed-plate. The bed-.

38, secured tothe driving shaft adjustably,-circularly and longitudinally,-by

means of the extended collar 39, and clamping screw 40.

Alportion of the feeding mechanism is illustrated in Fig. II merely to show the relation thereof with the lo'operv mechanism, .said feeding mechanism comprising the rocker 41,.the feed-bar 4Q, journaled on the shaft 4:3, held in the rocker 4l, and provided at its forward end with the feed-dog t4. Any suitable means may be provided tor imparting the vertical rise and fall to said bar, such as eccentric'45, secured to the driving shaft by means of the. extended collar 46. and set-screw 47.

The parts thus far described may be 'of ordinary character; but the looper mechanism described coperates particularly, though not necessarily, with the take-up 'mechanism about to be explained. That is to say, as previously noted, the means provided for adjusting .the looper mechanism adapt the latter to be adjusted with reference to the path of reciprocation of the needle, either to the right or the lett of the latter. or directly inthe line of said path, for the purpose of enabling the looper to cooperate with a needle which may, in different machines, be differently timed. -The particulars of this will beset forth hereinafter and the particular coperation of the take-up mechanism specifically noted and stated. 1t must ,be borne in mind-however, that the take-upy mechanism is ot' universal application and can be adapted, with minor changes within the rovince of any mechanic, to coperate with any type of stitchforming mechanism and manipulate and control either the needle or the looperthread. This will be apparent during the course of the following description.

On reference to Figs. II, III and XXII it will be seen that the take-up mechanism consists, in this embodiment of my invention, in the bracket 48, herein shown as circular, secured to the bed-plate l, by means of the set-screw 48, passing through the elongated slot 48V in the bed-plates and into the bracket, thus rendering the latter adjustable at will along the length of the bedplate for the purpose of disposing the takeup mechanism in any desired position relatively to the looper or otherl mechanisms of the machine. he bracket '48, carries the journal bearing 49, through which extends the stud or short shaft 50, having the enlarged knurled head 5l, at one end whichbears against the adjacent end of the bearing 49, and at its other end having clamped thereto the take-up lever 52, by means of the set-screw engaging the wings 54, of the clamping collar on the end of the takeup lever. The takeup lever is thus enabled .inserted 'in the bore.

torock freely and is providedwith an extended bearing to afford stability and steadiness. The lever 5 2 ,has-the long arm 55, the

free end of which is bifurcated toprodi ce the thread-supporting 'arms` 56, which re4 curved longitudinally as clearly shown 'in the several figures. The angle* 57, of the arms 56, with the lever-arm 55, .isrounded so as not'to abi-ade or fray the thread, Athis angle constituting. the portion over which the thread slides during the take-up action. Between its ends, so as' to make the Varm 55,

considerably longer than the arm 52, the

strap from being moved lateral-ly relatively to t-he eccentric; and to properlyv and adjust- -ably secure the eccentric to the shaft, it is provided with the Alaterally extended collar 64, through which is tapped the set-screw 65, into engagement with'said shaft. This means enables the eccentric 60, to be adjust-ed circularly and longitudinally. 'To afford proper lubricationbetween the eccentric'and thestrap, the latter. is provided with the open-sided bore 66, extended transversely' through the strap, the open side being adjacent the eccentric and'thus allowing lubricantto be applied freely to the surface of the eccentric by means of awick 67, At, its rear end the strap 59, has secured to it, beyond its pivotal connection with the take-up lever, the

controlling arm 68', the same being adjustably cla-mped to the strap by means of the washer 69, and screw 70, the latter passing through the Washerand into the end of the strap 59. At its free end the controlling arm is bent so as to provide the controlling finger 71, which is extended between the tl-i'readlsupporting arms 56,' of the take-up. vBy the adjusting means' described, the controlling arm 68, can be set so that its controlling end or finger 71, will project to a greater or less extent .beyond the angle 57, of t-he Atake-up lever 55, thus providing -means for adjusting' the amount or extent of the take-up action. The strap 59, carries at a point between its ends a stop-pin or post 72, the same being forced into an aperture 73,-see Fig. XIX,-in said strap so as to hold the pin or postI firmly in position. The outer end of the post 72, is caused to extend into the bifurcation between the supporting-arms 56, and the take-up lever, and' is so located that at no time during the operation of thetake-upilever will the said'post be withdrawn romthe bifurcation. If de-.

sired,the stop-pin or post 72,.:nay berendered adjustable on the strap 59, as shown in Fig. XXIII; that is to say, the strap 59,V lmay beprovidedwith aslot 74, extending longitudinally"thereof, and a stop-pin 72",

provid( with the overhanging portion 72,

maybe adjustableboth longitudinally and transversely of said strap' 59.' These adjustments are secured by means of a slot 75, in

the enlarged base 75, of the'stop-pin 72",

saidslot'extending across the slot 74, in the strap. A screw-bolt, or any other suitable operation 'of' the stitch-forming mechanism of my invention, attention is directed tothe' means 76, maypass through the two'slots 74 and '75, and the headed ends of said bolt will be caused to tightly clamp the stop-pin to the sti'ap. B y this means it will be seen that the stop-pin can be adjusted longitudinally. and transversely of the strap. It might be that the construction and adjusting means just described would cause interferenceof the basel of the stop-.pin 7 2x with i adjacent portions of the brackets 78, hence the overhanging portion72n of the stop-pin is provided so as tototlset the same from the main portion 72X. Thus, the stop-pin is adjusted so that its depending finger 72a extends between'the two arms 56 of the takeup flever in the same manner as the straight stop-pinl 72, the off-setting just described of said extension enabling the body of the stoppinl to be located quite a distance from the brackets 78, or other adjacent-portions, and -the adjustments described enabling the extension 72:l to be set properly with reference to the arms` 56 of' the .take-up. Thus, the post isvrendered vertically adjustable so as to regulate its height relatively to the supporting arms 56,*'1between which it stands during'the operation of the take-up mechanism.

yFormed on the bed-plate, or made as an extension of the bearing 49, are two brackets' 78, to which are adjustablysecured

threadguiding fingers

79 and 80, each of the fingers being provided with the enlarged head 8l, through which is 'aA transverse bore 82, into which 'extends an open-end threading-slot 83. These thread-guiding fingers are disposed on oppositesides of the arms 56, ot ,the take-up lever, and are each rendered adjustableonjthe bracket 78, by means of the washer 84, and set-screw 85, the washer bearing upon the'shank of the guide 79, and clamping the same in a suitably formed groove in the.brac.kct 78. By 4this means the height. ot the thread-eyes 82, relativelyT to the surface of the controlling arms 5G, can he regulated at. will, for the purpose of providing 'more or lesslooper-thrcad. more thread being furnished on a low adjustment of the guides and less on a high adjustment, as will be obvious. The thread-eyes are disposed on the bracket 78, so that the one 79,

v stantially in the direction of reciprocation of A thearrns 56, of the take-up lever, while the one 80, is disposed so that said open-end slot will extend substantially at a right-angle to the path of'reciprocation of the'arms of said take-up lever. In this way the thread and the guides are prevented Vfrom being unthieaded, thus avoiding the necessity for the use of spring retaining devices in the eyes cheapening the construction.

Before entering upon a' description of the factthat the take-up is adjustable in every pai-t; that is to say, the eccentric '60, has a double adjustment on the shaft 6, by means of the clamping screw 65, and such adjustment being either or both circumferentially to regulate the timing of oscillation of the take-up, or longitudinally of the shaft in order to give the take-up mechanism "its proper, or any. desired, position 0n the bedplate; the supporting bracket is also adjustable upon the bed-plate for the purpose of enabling'tlie proper disposition of the takeup; the thread-controlling arm 68, is adjustable on the eccentric strap-59, -so as to re ulate the position of its extendingend l, relatively to the take-up lever in order to cast olf the thread sooner or later during the backward movement of the said lever; the stop-pin 7 2, is horizontally adjustable` if .desired, to regulate the amount of slack supplied' to the looper during its backward movement," so as to permit the stitch to be set on a more or less slack loopcr-thread and on the downward movement of the needle, thus avoiding strain on the stitch; and the guiding

fingers

79 and 80, Vare adjustable vertically so as to be placed in properrelation to the thread-supporting arms 56, of the take-up lever, so as to control the amount of thread suppliedi to the loopcr during its forward movement, and the amount of thread -cxtcnding between the work and the loopeitoc. Thus, it will be seen, that the position of the take-up mechanism on the bed-plate can be controlled, the timing of movement of the takeup lever can bc controlled andthe positions of the thread-controlling arm (i8, the stop-pin 7; and thc guiding-lingers 7S) and 80, can bc controlled. llcncc, the amount 'of take-up action is. completely and thoroughly within thc c-'uiti'ol oi' the operator. as well as thc supply ot' thread to the louper. and thc disposition ol thc take-up mechanism relatively to thc loopcr mechanism is also under control. lt will also be leen that the amount ol' lateral movement of the loopciA is under cont r il ol the operator by means of the adjustable eccentric 38, and that the loopcr mechanism can be adjusted is securely retained in the thread-eyes-82,

:or thread-slots and greatly simplifying andi;

setting the stitch, a device which may be termed a thread-controller orauXiliary take- 'up isl applied to the reciprocating looperactuating rod or pitinan 1-1,said device consisting in the guide 8G, having an end 87, thereof, bent at an angle and suitably held in a clamp SS, encircling the pitman 14: and clamped thereto by screw 88a, so as to be adjustable on said pitman. To engage the thread` the guide is made in t-he form of a loop or hook, which presents its back to the take-up mechanism and one side to the looper mechanism. This Adisposition prevents the thread from being released from the hook. The idea of this adjustment is to enable a proper disposition of the threadcontroller relatively to both the take-up and looper mechanisms, whereby during the operation of the stitch forming mechanism the thread leading from. the take-up to the looper may be properly handled and the Slack controlled and the take-up aided in its action in setting` the stitch. It will be noted that the thread runs from any4 usual supply through the guide 94, located on the bed- -platc or any portion of the frame of the machine, then through the guiding-linger 79, over the supliorting arms 5G, of the take-up lever, behind the pin 72, and then through the guiding-finger 80, to the thread-controlling hook 8G, and then to the looper. To

prevent the thread in its passage from the take-up to the thread-controller from having contact with the driving shaft orother adjacent portions to which lubricant 'is usually applied, a shield 91, is secured to the bedplate by means of set-screw 92, extending' through the horizontal portion or base 93, of said shield, into the bed-plate 1. Preferably, the shield is made angular, as shown in the several ligures, so as to present the vertical portion U1, between the thread-controller and the driving shaft, and has an overhanging portion 91, which completely covers and shields the take-up eccentric, a portion of the shaft and a portieri of the strap 59, thus preventing any contactof the thread with the said operating parts of the machine.

I will now describe the inode of operation of my stitch forming' mechanism.

Primarily, itl will be understood that the needle-bar is vertically reciprocated from the connections willi the driving shaft, the looper is recipi'ocated and laterally vibrated from the connections with the driving shaft, and the take-up is oscillated from the connections with the driving shaft. The stitch to be -niade is the well-known lock-chain stitch, or one wherein a loop 'of the. looperthread passes through a loop of the needlethread and encircles the next adjacent loop of the needle-thread; or in other words. one wherein a loop of needle-thread extends through a loop of the looper-thread and passes around a second loop of the loo erthread. This is a desirable form of stitch and one which it has been endeavored to make perfectly with a simple, accurate mechanism for many years. Referring to Figs. IV, V and VI, it will be assumed that the needle has rleached its lower extreme and is slowly retrograding to throw out its loop, the looper is moving forward. from its rear extreme and simultaneously moving laterally toward the back of the needle so as to go behind the latter; the take-up has begun to move forward under the thread which extends froni one thread-eye to the other over the supporting arms 56, the action of the said arms upon the thread being such as to prevent an excess of slack'; and the controller 86 is moving forward and giving up the thread as the looper moves forward so that the thread may not drag in the looper, thus controlling the slack betweenl the take-up and the looper. Referring to Figs. VII, VIII and IX, it will be seen that the needle has retrograded, thrown out its loop, the looper has moved forward so that its toe has entered the loop and is new passing into the loop as the needle rises above the throat-plate; the take-up has moved forward substantially one half its distance and the slack is still under control thereby; and the controller is still moying forward with the looper'and giving up the thread according to the requirements of the latter. Referring to Figs. X, XI'and XII, it will be seen that the needle has risen to substantially its upper limit, the looper has moved to its forward limit and is about to move laterally toward the front of the machine, the needle-loop having slipped to the rear end of the looper body and the looperthread extends through the same, through the eye of the looper and back to the work in the last stitch made; the take-up has reached Vits forward extreme, the thread having slipped along the arm 55, thereof, into contact with the supporting end 71, of the controlling finger 68; and the thread controller having followed the looper, giving up thread in accordance with the demands of the latter, and is now about to return with the looper. Referring to Figs. XIII, XIV and XV, it will be seen that the looper is returning to its rear extreme having covered substantially one half the distance and is moving in a plane in front of the. path of reciprocation of the needle, the latter being now descending and having entered the throat-plate, the previously formed needlelfloop is slipping toward the toe of the,

looper and the looper-thread extending `betweenthe work and the eye of the looper is around the take-up arm 55, to be drawn to-' heilig gradually shortened; the take-up is moving toward the rear as is also the controlling finger 68, the speed of the take-up in this backward movement, obviously, being greater than that of the controlling linger, because the finger has only the speed of the eccentric strap 59, while the speed of the take-up is augmented by reason of its stationary pivotal supportl and the length of its arm 55, this movement causing the thread, extending from 'guide to guide wardthel rear and to ride up the take-up arm, thus drawing in the slack between the,

eye of the looper and the last stitch formed proportionately to the -movement of the oopertoward the rear; andthe thread controlleris moving ,toward the rear with the salne speed asthe looper, and in so doing,is

controlling the excess of slack which occurs viouslyformed needle-loopen the body of the looper vout of the while the looper is drawing its thread about way of the needle,

the-bodybf the needle, consequently about the body of the loop which is next to 'be made by the continued downward movement and consequent retrograde Aof the.

needle. i 'Ihe take-up has. moved to its rearward extreme, and' likewise' the controlling finger 68, resulting in forcing or lifting the looper-threadover theangle 57, between 'the arms 56, and the arm 55, of the take-up lever; this wasv the climax of the stitch-setting operation, inasmuch as the take-up had drawn the looper-thread to the rearward extreme, held the` same taut while the needle was descending and consequently d wing its thread taut, and the controller w( s oving back with the looper and helping to take up the slack in `the looperthread. rIfhe parts next Areach the position of Figs. IV, V and VI, viz., the needle its lower limit-and being about to rise to Hthrow out the second loop, the looper its rearward extreme and moving laterally toward tlnieffrear of the needlev and lmoving forward again for en-` gagement with the second loop, and the take-up moving f forward 1to control the slack of looper-thread, ,the latter having slippedy forward overthe supporting arms 56, and -against the stop-pinl 72;.during this time, however, thecontroller 86, has moved ,to its {eaiward extreme, thus increasing the j VI, XVII and XVIII,4

shaft.

angle of the thread, see Fig. IV,- and controlling the slack thereof caused by its shpping forward onthc take-up arms into engagement with thestop-pin. l

lthe .needle and 'with the -needle-thread, being drawn close tothe work by the downward movementof the needle and against the looper-thread which, though under control,

lis not taut nor rigid,` thus avoiding strain o n both the needle and the looper threads. Obviously, adjustments of the 'elements of the take-up mechanism will result in the setting of the stitch earlier or later in the downward movement of the needle, and in consequence the Lock, or junction between" the needle and looper-threads, can be controlled and its position inthe work located to.a nicety. And with special reference to the. adjustment of the looper and take-up mechanisms individually as a whole and relatively to each other, it will 'be understood that, in different machines, the reciproca- .tious of the 'needles and the downward thrust of the latter,- though predetermined, j will vary considerably and, hence, in a given machine, to which it may be desirable to apply the looper mechanism of my invention,

`it will be necessary to adjust the positi'on'of the latter so as to properly cooperate and be l in timel with the needle. This is accom. plished by making the looper mechanism universally movable and adjustable on the. bed-plate., of` the machine as described. l/V hen the proper coperative relation between the looper and the needle has been thus established, .it is necessary to properly locate the take-up mechanism, as a whole, in the machine and relatively to the looper, this`being accomplished with my take-up mechanism by reason'of having the latter carried by a bracket, and operable from an adjustable eccentric carried by the driving Having made this' general adjustment in the machine,`which accommodates the take-up mechanism to any type ofy stitchforming mechanism, tine and accurate adjust- 120 ments may be made by regulating the posiml.- tioniof individual elements of the take-up, as described. lso `as to control the requisite 1 amount of slack drawnyi'n and given up and to determine the position of the lock of the seen that the construction of my take-up mechanism i`s such that it will work, control the-.thread -and perform all its functions lsa stitch inthe work. Furthermore, it will be i tion ot rotation of the drivingshatt, and that it the thread should break there is no possibility of its becoming entangled with the-parts or wound upon the driving shaft. These are'common faults in prior constructions and of frequent occurrence.

Having thus described my invention, what l claim and desire to secure by Letters Patent is:

1. A stitch forming mechanism comprising a needle, looper and take-up, means for actuating the several elements, and the ltakeup comprising in its structure an oscillating lever and an oscillating controlling finger arranged adjacent said lever and cooperating therewith to receive the thread as it slips from the take-up.

'A stitch forming mechanism comprising a needle, a looper and a take-up, means for actua-ting the same, and the take-up comprising a. biturcated lever and an oscillating controlling finger -arranged adjacent said lever and cooperating therewith to receive the thread as it slips from the take-up.

S. A stitch forming'mechanism comprising a needle, a looper and a take-up means for actuating the same. and the take-up comprising a lever and a' thread controlling finger arranged so that the thread may slip from one to the other and the movements of onel being given ata higher speed than the other. v

4L. A `stitch forming mechanism comprising a needle, a looper, a take-up and means for actuating the same, and the take-up comprising an oscillating lever, a pair of stationary thread -guides and an oscillating thread-controlling finger arranged adjacent said lever and coperating therewith to receive the thread las it slips from the take-up.

5. A stitch forming mechanism comprising a needle, a looper, atake-np and means for actuating the same, and the take-up comprising an oscillating lever, a stop-pin, a lvibratory controlling linger cooperating with said lever, and a pair of thread-guides.

A stitch forming mechanism comprising a needle, a looper, a take-up and means for actuating the same including a recipro-v cating part, Athe take-up comprising avlever pivoted to said part and a controllingt iinger fixed to the latter.

7 A stitch forming mechanism comprising a needle, a looper and a take-up, meansfor actuating the same including a gyratory part, the take-up comprising a lever pivoted to said part and a controller fixed to the latter.

8. A stitch forming mechanism comprising a needle, a looper and a take-up, means for actuating the same, and the take-up including an oscillating lever, a pair of threadguides arranged on opposite sides of the,

path of oscillation of the lever, and a thread 10. A stitch forming mechanism compris-v ing a needle, a looper and a take-up, means t'or actuating the same,-- and the take-up including an oscillating lever, a pair of coope ating thread-guides and a reciprocating thread controlling finger` and means for adjusting the controlling finger relatively to the lever.

11. A stitch forming mechanism comprising a needle.,- a looper and a take-up, means for actuating the same, and the take-up 1ncluding a pair of thread-guides oppositely disposed, an oscillating lever and a thread controlling finger arranged adjacent said lever and coperating therewith to receive the .thread `as it slips from the take-up, the finger and the lever having movements toward and from the thread-guide.

12. A stitch forming mechanism comprising a needle, a looper and a take-up, means for actuating the same, the take-up including a pair of thread-guides, a lever oscillating between` the same, a vibratory stop-pm cooperating With the lever, and means for adjusting the stop-pin. relatively to the lever.

13. A stitch forming mechanism comprising a needle, a looper and a take-up, means for actuating the take-up including a reciprocating part, and the take-up comprisingl rocating part, .and the take-up comprising an oscillating part, a moving pm, and means for adjusting the pin relatively to the said oscillating part.

' 15. A sewing machine comprising a stitch forming mechanism and a take-up, the latter including an oscillating lever, a pair ot thread-guides and a thread controlling inger, arranged adjacent said lever, and means' for bodily adjusting the several parts of the take-up relativel to the stitch forming mechanism.

1G. A sewing machine comprising a stitch forming mechanism and a take-up, the latter including a pair of thread-guides, an oscillating lever and a controlling finger, means for adjusting the finger relatively to the lever, -and means for bodily adjusting the several parts of thetakenp relatively to the l a controllii'ig finger and `a stop-pin, both costitch forming mechanism.

Y 17. vA sewing machine comprising a stitch forming mechanism and a take-up, the latter including a pair of thread-guides, a lever and a thread controlling finger, means for adjusting the guides and finger .relatively to the lever, and means for bodily adjusting the several parts of the take-up relatively lto the stitchl forming mechanism. f

18. A take-up mechanism for sewing machines comprising a supporting bracket, a lever pivoted thereto, a controlling linger, arranged adjacent said lever and coperating therewith to receive the thread as itv .slips from the take-up, and means whereby movement may be imparted to both the lever and the finger.

y 19. A take-up mechanism for sewing machines comprising a supporting bracket, a lever pivoted thereto, a controlling finger and a stoppin, arranged y and means whereby mov-ement may be imparted to saidpin, finger and lever.

Q0. A take-up' mechanism for sewing ma chines comprising a supporting bracket, a lever pivotcd thereto, means whereby the lever may be oscillated, and a controlling ngersupported by a part of said means and coperating with the lever to receive the thread as it slips from the latter.`

l 21. A take-up for sewing machines comprising a supporting bracket, a lever 'pivoted thereto, means for oscillating said lever,

adjacent Isaid lever,

operating with said leverl and-actuated by said means. v

22. A take-up mechanism-'com rising a supporting bracket, a lever pivote thereto, a pair of thread-guides connected tofsaid bracket, a 'controlling finger .cooperating With the lever to receive the thread asit .slips from the latter, and means whereby the lever and finger may be oscillated.

23. A take-up mechanism for sewing ma;

chines comprising a supporting bracket, a

lever pivoted thereto,a pair of thread-guides adjustably connected to said bracket, a linger coperating with the lever to receive the thread as it slips from the latter, and means whereby the finger and the lever may be actuated. 24. A take-up mechanism for sewing machines comprising a `supporting bracket, a

lever pivoted thereto, a pairof thread-guides connected to the bracket, means 'whereby the lever may be actuated, and a cooperating thread controlling finger connected tojsaid means arranged adjacent said lever and cooperating therewith to. receive the thread as it slips from the take-up. 1

In testimony whereof signed my. name in the presence of two subscribing witnesses.

WILLIAM V.MILLER. i vlVitnesses:

CHAs. MCC. CHAPMAN, M. HERsKovITz.

I have' hereunto y