US1540714A - Attachment for embroidery machines - Google Patents

Description

.Jime 2.192s.

A. RAUSSE ATTACHMENT FOR EMBROIDERY MACHINES Filed March 14, 1922 5 Sheets-Sheet 2 v a m? INVENTOR WITNESSES 4 TTORNEYS 5 Sheets-Sheet 5 INVEN TOR I H v Q. R amass 8 X 2 m Q0 A TTOR/VE V8 ATTACHMENT FOR EMBROIDERY MACHINES Julie z, 1925.

WITNESSES y J ne '2. 192.5.

A. RAussE ATTACHMENT FOR EMBROIDERY MACHINES Filed March 14, 1922 ATTORNEYS June 2, 1925 1,540,714 A. RAUSSE ATTACHMENT ,FOR EMBROIDERY MACHINES Fiied March 14, 1922 5 Sheets-Sheet 5 WITNESSES l/ENTOR .fl.2azwse Patented June 2, 1925. i I i i Q it uurreo YsrArss A ENT I nn'roivio nnussn, J flnsnr.

nr'rnonlvrnnr 1am EMBRoirnnYiaAoHIN sf i i Applicationj filed Mal a 14,1922. seri 7; a

To all whom it mere/concern": 7 following detailed description and acconr Be it known that I, ANTONIO Raossn, a panyingdrawingsyin which citizen of the United States, and-a resident Figure 1 is a perspective view of a porof Northvale, in the county of'Bergen and t'ion of'theautomatic-mechanism with the State of New Jersey, have ,inventeidhew embroiderymachine{attachment mounted 5 and useful Improvementsjim Attachments thereon; 1 for Embroidery Machines, of which the iol "Figure 2 is a perspective'view of a portion lowing is a full, clear, and exact-description. of the automaticmechanism of vthe em- This invention relates to attachments for broidery machine showing the mechanism 7 embroidery machinesand is primarily de 'perated upon'the, operation'oi the attachi signed for useWithIan-automatic embroidment for the embroidery'machine; ery machine. 1 i Fi-guref3 is a top plainview of the em In the Groebli automatic embroidery 'mabroiderymachine atta'chmentyf v chine considerable dilliculty is experienced Figure 4 is asection @011 the line 454,

15 from the breaking of threads by the take- Figure'S; V i up mechanism avhich is normally thrown Figure 5 isa top plan'view showing how forward, slackingthe threads whenth'e tab "the pitman rod is engaged by-the oscillatric being worked is movednpon the comting armwhich operates itj pletion of awfigure. This is caused bythe Figure '6is a section along the line 6'6,

suddentightening of the {threads when the FigureS; i

machine beginsto operate on the new figure. Figure "7 is a side elevation of the take? While the fabric isbeing moved the threads up operating'rodand the pitin'an rod for are released by the take-up device and 'usu operating'thetensioning meansy ally a certainslackness remainsy and when Figure '8gisa diagram showin low" the threads when the embroidery machine be vice is'thrown forwardyand gins to operate on the new figure it moves Figure 9' is a diagram showing how vthe through a certain distance without meeting thread is tightened and retained tight-while any resistance by the thread and finally the fabric is being moved fromgone figure to tightens the thread with a snap; the force of another by the operation of the embroidery which is so great that some ot the threads machine attachment. Y c are often broken since the tensioning roller In describing thev efnbroiderymachineathas no momentum and is startedvery sud- 'tachment and its operation it willbenecesden1y. 3- a i sary to set forth certain parts and inove- 35 The general object of this invention is the ments ofthis Well known embroiderymaprovision'ot'an embroidery machine attachchine which forms no part of this invention. inent adapted tobe operated by the machine The drawings illustrate in heavy shaded to release the take-up operating means when lines 'my': improved attachment to a well the fabric is being moved upon wthe :conr known type of embroidery machine in gen fabric is beingshifted from one figure tolana perforated "paper or other strip ('1'1ot other thus causingthe take-up means to reshown), the strip functioning to control-the main in the position to which it'has been embroidering operat on in iacoordance with I raised to tighten the threads, 'saidreleasing any given pattern through "which the tension ing means is op; swinging movement of a hori zontallylmov e'ratedand at the time when the tensioning able lever 12 whichis pivotally supported means has been released. 1 between'its 'ends, as shown at 13; and has a V This and other objects of the invention bifurcated free end 18' for a purpose which I 5 will be more clearly understood tr'rom the will hereinafter appear. This lever lfigan-cl the take-up device'moves to tighten the thread-"isyslackened when theltt ikeaip depletion of a figure sothat thetake-upmeans eral use thelatter being illustrative and dea 9 is retained in a position where it keeps the scribed with suflicient particularityto point threads tightened. out the construction and operation and ad This object is" accomplished by providvantages-of my attachment. 1 1 ing means forreleasingthe take-up operat 'It is tobe understood that the operation 15 i ing I'OClflQHllfS driving ineansr when the of the embroidery machine is controlled by 1 9 0 means being operated by the pitmanrod Fi'irth'ermore, the paper strip controls the its adjacent co-operating parts are shown most clearly in Figures 1, 3, 4, 5, 6 and 7 A represents a continuously rocking shaft which is caused to rock by means of an arm 11 which engages in a cam groove 57 in a cam 58. This shaft A is provided with a rocker arm carrying a pin 10 at right angles thereto. i

The pin 10 is adapted, when permitted, to engage in any of a series of notches 17 in the lower face of a foot 16, the latter elastically held in its lower normal position by means of a spring-pressed plunger 16 which engages the upper face of the foot and permits the foot to slide freely under the same. The foot is moved laterally into and out of operative engagement with the pin 10 by means of the lever 12 above referred to, as it will be noted that the bifurcated end 18 of this lever 12 straddles the foot. Vhen the foot is moved by the lever 12 to a position out of engagement with the pin 10, its

, notched portions 17 rest upon fixed pins 17' and is held thereby against movement.

The foot 16 constitutes a fixed part of a pitman 15, the latter having a rack 19 thereon meshing with a pinion 20 on a shaft 21, so that the reciprocating movement of the pitman, due to the action of the rocker arm 10, will impart an intermittent oscillatory movement to the shaft 21. This shaft 21 carries a cam 22 which engages a finger 23 on a vertically movable rod 24, and a coil spring 22 exerts an upward pullon the rod 24. The rod 24 is connected at its lower end to a brake shoe 25 adapted to engage the tension roll 26 and is caused to move into holding engagement by the downward movement of the rod 24 and is released by an upward pull on the rod due to the spring 22. 36 represents a shaft which isvparallel to the tension roll 26 and carries a plurality of arms 28 which latter support a rod 28' over which the yarn or threads 27 are passed, and this rod 28 functions to take up slack in the threads or yarn, as will more fully hereinafter appear. A crank arm 36 on the shaft 36 is connected by a link 35 with the crank arm 34 of a shaft 33 located above the shaft 36. Any suitable spring tensioning means may be provided to move the arms 28 to the position shown in Figure 9 as, for example, a flat spring 34 may be connected to a fixed part of the frame and exert downward pressure on the crank arm 34.

The shaft 33 is provided at one end with a crank arm 32 having a rod 31 pivotally connected thereto. This rod 31 I term a take-up operating rod which is formedby providing the construction of a notch to permit its removable connection with the pin 52 I am enabled to disconnect this rod so that the normal operation of the shaft 36 is stopped. It is with the provision of this notch 31 that my invention begins as all of the other elements (including the fixed pins 17') and structure referred to and described in the hereinabove descriptive portion of this specification have heretofore been and are now well known and widely employed in embroidery machines of the type shown. My reason for stopping this normal operation is, that, when moving the clothor material from one embroidering position to another, the threads are drawn and slackened so that, when the machine,

again operates, a sudden starting causes strain upon these threads which is apt to break them, and, by permitting this rod 31 to disconnect from the pin 52 and automatically bring about this disconnection, constitutes the real function of my attachment which will now be described in detail.

In the path of movement of the foot 16 I provide'a lever which is pivotally supported between its ends, as shown at 46, and at its other end is connected by a link 43 with the lower end of a lever 42, the latter pivotally supported between its ends as shown at 47 .s A forked arm 39 is pivotally connected to a fixed bracket 38 and prefer ably supported on an axle stub 49 in said bracket, and this forked arm 39 engages and is adapted to move the rod 31 above referred to. The connecting means between the arm 39 and the upper end of the lever 42 comprises a pair of rods 40 and 41 which are adjustably connected by a coupling member 51, and the end of the rod 40 is hook-shaped so as to engage about the arm 39 and move it in one direction. A coil spring 59' connects the rod 31 with the stub axle 49 so as to maintain the rod in the forked end of the arm 39. e v 7 My invention or attachment therefore con sists of the lever 45, link 43, lever 42, rods 41,40, arm 39, the spring 59, and the necessary supports for these parts. In addition, the improvement consists in providing the notch31', in the rod 31 to permit the disconnection from the pin 52', and these parts are brought into operation when the end of the foot 16 engages a tongueor enlargement 48 on the free'end of lever. 45, as will now be explained; 1 i

In the ordinary operation of the machine, as controlled by the perforated sheet or strip above referred to, the shaft A is caused to rock through the medium of-arm 11 and cam 58 so that the arm 10. andpin 10, are continuously rocked backwardly and .forwardly. When the tension is to be applied on the tension roll, automatically the lever 12 is swung on its pivot to bring the foot it) oh of the, fixed plus it and move the same later lly a distance sufficient to allow the pin to engage inone "of the notches l7 in the foot and impart a reciprocating action to the foot. This reciprocating ac- 7 tion n illycoi itinue so long the pin'ltl is in 'one'cf the notches '17 and will, thror'igh the inediumof the pitinanj 15, rack it)" and pinion 20, turn the shaft. 21' to o erate the cam This xn'ovementrofitlre can 22'exert a downward pressure onth'e rod 24; to apply the brake shoe 25 to the tension roll 26. It is, of course, to be understood that the braking action is ap lied when the pie manlifi is moved in "one direction and re:

fl'ca'setl when moved in the other direction,

the coil s rin '22" releasin the tension P e g is when ermitted b the movement of cam "22. When the patternef the eihhreiaeryis completed the perforations in the paper strip are such that theycausethe lever l2'to oscillate intermittentl and bring the foot is in gpesitioh for engag ment fthe pin 10 with successive notches 17 so that a con ti'nuous longitudinal movement is imparted which causes the/foot to ngage the lever 4'2 and, through the medium of link 4 31, lever '42, rods 41,40,heathen-11139 to force the rod-Bl out'o'f engagement with the pin 52 so that the shaft B can idly oscillate without moving the shaft Stiand its take-up 'inechanism. When this occursythe elastic 7 means as, for example; the flat spring 34' engaging crank arm 34 asshown in Figure 2, will exert a sufficlent pressure onthe parts tomove the shaft 36, arms 28, rod 28 to the position shown in Figure-9 and thereby Vhen the machine again starts operation, the perforatake up the slack in the threads.

tions in the controlling strip cause the lever 12 to move the foot 16 into and out of-: engageinent with thepin 10 and so time these movements that the operationwill cause the foot 16 to move in a direction directly opposite to that above described, the movement being a step by step movement until anor mal position is reached,'when only a reciprocating movement will be imparted 'to the foot to carry out the proper tensioning of the tension roll in accordance with the pattern. When the foot is moving away from the lever 45 this, throughthe medium 7 of the spring 59,-Will permit the rod 31 to ride into the notch 31.

to move to a position to cause the pin 52' end of this rod 31 has a cam face 32 which guides the pin 52 into the notch or recess 31, and the spring 59 will hold therod and the pin in operative engagement until forcibly disconnected by the operation of the arm 39; as above explained.

, It will thus be noted that my improvement the art consists in providing means which automatically operate to take up slack in the threads when moving the cloth from The extreme one position for embroideri'ng to another,

and this is brought about by'th'e disccmiee tic'n .cc't the rod 31 with the pin 52" through the medimac'f' the parts above describ d. controlled bythe lever which is engaged by the footlti; v,

Claims. a.

L'1.-*An embroidery machine attachment for use with embroidery machines providednurture-u means comprising meansop era-ted by the embroidery machine to release the take-up means initsjthre'ad tightenihg peeiuen froin ftlie embroidery ma chine ivlrei'i the fabric is being shifted.

In combination with an "embroidery machine incl ding a talrc up and a 'take up operating means, an embroider machineattachment comprising means operated-by the embroidery machine for "releasing the tak'eup In" its. thread tightening position from" the take-up operating means stepp'in theoperaticnof the takeup when the fah ric isiheing shifted; f f 3. In combination with an embroidery machine inclhdin'g a thread takenp, a thread takep eperatihgrc-d, an emhroid ery machine attachment comprising means for releasing the'thread take-up operating red from said actt'iatiiig "rneans' hen the fabric is beingshifted, and means operated by the embroidery machine for disengaging said thread take-up operating rod'releasing means from the thread take-up operating rod after the fabric has been shifted.

4. In combination with an embroidery machine including a thread take-up, a

IOU

up operating rod releasingmeans from the thread take-up operating rod after the fabric has been shifted, i a

5. In combination with an embroidery machine including athread take-up, a thread take-up operating rod and means for' actuating said thread take-up operating rod, an, embroidery machlne attachment comprising means for releasing the thread take-up operating rod fromsaid actuating means to stopthe operation of the take-up when ,the'fabric is being shifted, said releasingmeans permitting the establishment of connection betweenrthe thread take-up operatingrod and saidthread take-up operating rod actuating means after the fabric has been shifted.

6. In combinationwith an embroiderv machine including a thread take up, a thread take-up operating rod for moving the thread take-up to its thread tightening position, and means for actuating the thread take-up operating rod, an embroidery machine attachment comprising means for releasing the thread take-up operating rod from the thread take-up operating rod actuating means when the thread take-up is in its thread tightening positionto permit the movement of a fabric in the embroidery machine, said releasing means being disengaged from the thread take-up operating rod to permit the establishment of connection between the thread take-up operating rod and said thread take-up operating rod actuating means after the movement of the fabric. r

7. In combination with an embroider; machine including take-up means, a takeup operating rod for operating the take-up means to move the latter to its thread tightening position before the Work is shifted, means for actuating saidtakenp operating rod, tensioning means, and a pitman rod for operating said tensioning means, an embroidery machine attachment comprising means associated With said take-up operating rod for releasingthe same from said take-up operating rod actuating means before the fabric is shifted to retain the takeup means in its thread tightening position, lever meansoperated by said pitman rod When the tensioning means has been released, and means for conveying the motion of said lever means to the take-up operating rod releasing means to disengage the latter from the take-up operating rod.

8. In combination with an embroidery machine including a take-up, a take-up operating rod for operating the take-up to move the latter to its thread tightening position before the fabric is shifted, means for actuating said take-up operating rod, tensioning means, and a pitman rod for operating said tensioning means, an embroidery machine attachment comprising means associated with the take-up operating rod for releasing the latter from the take-up operating rod actuating means to retain the take-up in its thread tightening position While the fabric is being shifted, a lever operated by the pitman rod When the tensioning means has been released, and adjustable connecting means for utilizing the motion of the lever to disengage said releasing means from the take-up operating rod.

ANTONIO RAUSSE.

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