US902818A - Festoon mechanism for embroidering-machines. - Google Patents

Description

J. A. GROEBLI. PESTOON MECHANISM FOR EMBROIDERING MACHINES.

APPLICATION FILED JAN. 24, 1908.

Patented Nov. 3, 1908.

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QzQa/QM @Vilmwwo J. A. GROEBLI.

FESTOON MEGHANISM FOR EMBROIDERING MACHINES.

APPLIOATION FILED JAN. 24, 190B. Patented NOV 3, 4 SHBETB-SHEET 3.

wuewfoz J. A. GROEBLI. FESTOON MECHANISM FOR EMBROIDERING MACHINES.

\ APPLIUATION PIL/ED JAN. 24, 1908.

902, 8 1 8 Patented NOV. 3, 1908.

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UNITED STATES PATENT OFFICE.

JOSEPH A. GROEBLI, OF NEW YORK, N. Y., ASSIGNOR TO KURSHEEDT MANUFACTURING COMPANY, A CORPORATION OF NEW YORK.

FESTOON MECHANISM FOR EMBROIDERING-MACHINES.

Specification of Letters Patent.

Patented Nov. 3, mos.

Application filed January 24, 1908. Serial No. 412,376.

To all whom it may concern:

Be it known that I, Josnrn A. GRoEELI, a citizen of the United States, and a resident of the city, county, and State of New York, have invented certain new and useful Improvements in Festoon Mechanism for Embroidering-Machines, of which the following is a'. specification.

My invention relates to the which is applied to embroiderin for the purpose. of forming a uttonhole stitch, at certain parts, especiall where a border of the design is to be of a uttonhole stitch.

Devices have been applied to embroidering machines for the purpose of bringing into action the buttonhole stitching mechanism where a border is being formed, and which retains the parts in action during the formechanism machines -mation of the border and removes the same movements necessary for operating the border mechanism, and my present device overcomes such difficulties and at the same time setting the border mechanism into and out of action through the direct action of the design roll and jacquard. The only function necessary for the jacquard to perform is to move a single lever to set the border mechanism into or out of action so that the mere addition of perforations on the paper roll wiil control the border mechanism.

The details of my im rovements and their operation will more ully appear hereinafter.

In the drawings formin p of this application, Figure 1 is a r0 elevation of the greater portion of my improved mechanism, Fig. 2 is a side eleva ion with parts of the frame in section, Fig. .is a plan view, partly in section, showing th swin mechanism for one of the cam ate-ti ns, 1 4 is a section on the line 4-4 of Fig; 3, ig. 5 isaa td elevation of Fig. 6, ig. 6 1s a and ' plan view of the clutch, Fig. 7 is a front ele operating member, Fig. 12 is a plan View of one of the cams, Fig. 13 is a erspective view of the rockin member which alternately operates a pair of pins for throwing the mechanism in and out of action, Fig. 14 is a perspective view ofone of the pan of pins, operated by the last mentioned member, Fig. 15 is a perspective view of the wedge lock used for operating the pin shifting device, Fig. 16 1s a similar view thereof, and Fig. 17 is a perspective view of a bracket.

My improvements are ada ted for use in the ordinary form of embroi ering machine, although they may be used on various machines.

My improvements are adapted for use with a jaci uard which sets them into operation,

will only describe such elements of the entire machine as are necessary to show the application of my improvements. Many of the features of my invention may also be used in a machine which is set by hand instead of by the jacquard.

As is well known an embroidering machine embodies a ver long frame on which are mounted various ongitudinal shafts and bars, the latter carrying a series of needles, which cooperate with corresponding shuttles for placing various desi ns on the interfor a given distance is completed, it is nee essary to throw the festoon. hooks out of operation to allow the machine to continue in the formation of such other parts of the embroidery as the design may include. As the needles, of which there are a great man carried on a single bar, move rapidly it wi 1 be apparent that the double action of the festoon hooks must be very rapid'and accurate and at the same time it is important that the hooks may be thrown into and out of action at the pro er time by means automatically controlle from the. design roll, that is, the continuous perforated roll usuall employed in operating the-jacquard. It wi 1 also be apparent that if there is considerable lost motion in the mechanism the device will not be effective and that the more positive the action, the more effective will it e in operation.

I will first describe the few elements of the frame of the embroidering machine necessary to illustrate the use of my invention and the needle and festoon hooks together with the means for carrying the latter. In the drawings I have shown the end standards 1 and 2 of the frame which are connected by the cross beams 3 and 4 and these form supports for various parts of the mechanism. By reference to F1 1 and 2 it will be seen that the needles 5, w llCll are carried on a common bar, move at right angles to the fabric and to the festoon books 6, there being one hook for each needle in the usual manner and the hooks are all mounted on a common longitudinal bar 7.

. connection of the rod 15 is duplicated at thethe machine. is a bell crank lever havin I have shown this bar connected to a round rod 8 which is operated by a series of levers 'so that the various hooks will rise and engage the threads, and then move longituinally of the machine so that upon the reentry of the needle into the fabric a loop will be formed in the thread thus making what is known as the buttonhole stitch. The rod 8 is provided with a downwardly extending rod 9 which is supported through a'. link 10 and rod 1O" upon a bracket 11, the link 10 being fulcrumed at each end, and the bracket 11 1s secured to the frame 301 Fulcrumed to the bracket 1] arms 13 and 14 to which latter arm the ower end of the rod 9 is fulcrumed. The other arm 13 is fulcrumed to a longitudinal rod 15, so that movement of the latter will rock the bellcrank and throu h its connections raise and lower the hook ar 7 thus producing the necessary vertical movement of the festoon hooks. The rod 15 is moved longitudinally to the left by a bellcrank lever having arms 16 and 17 and which rocks on a shaft 18 supported upon the frame by the brackets 19. A spring at the opposite end of the machine (not shown) returns the rod 15. Another rod 20 is connected to the endof th ear Sand is adapted to move the latter longitudinally a slight distance to rovide for the formation of the loops in the t reads.

This operating rod 20 is operated by another bellcrank lever having an arm 21 extending upwardl and another arm 22 extending outward y, which lever also rocks on shaft 18. It willbe understood that. the

opposite end of the machine and preferably at intermediate points, also, as the machine is long. .The mechanism so far described is not, per so, new in this case, and I will now pass to the mechanism for operating these parts.

For the purpose of rocking the pair of bellcrank levers I provide operating members 23 and 24 arranged vert1cal1y,the for mer being fulcrumed at its upper end to the arm 17 and the latter to the arm 22 so that each will move one of the bellcrank levers though they are not the same in the time of their operation.

The shaft 25 which is the main operatin or power shaft of the machine is provide with a gear 26 which is fitted loose thereon and which is thrown into operation by means hereinafter described, and this car meshes with an intermediate gear 27, t e shaft of which is journaled in a support 28 and the gear 27 in turn meshes with a superimposed gear 29 which is carried on ashaft 30 that has its journals in suitable supports 31 and 32. Upon the shaft 30 I revolving cams 33 and 34 whic coiiperate with the rising and falling members 24 and 23 respectively. The face of the cam 33 acts upon a roller 35 carried by the member24below the cam, for the purpose of movin the member 24 downwardly, so as to roc the bellcrank arm 22. The roller 35 may be held against the cam 33 by a spring in the well known manner. For the purpose of supporting the lower or idle end of th member 24 I provide an arm 36 fulcrum to itslower end so that the member 24 may move freely and still remain in pro r position. The cam 34 which also revo ves with rovide two the shaft 30 operates upon its .face against a roller 37 carried by the member 23 which roller is dis osed above the cam 34 so that the latter wi 1 force the member 23 upwardly when it revolves, during which time it is held against the cam 34 by the spring action and it is returned by means hereinafter described. The cam 34 is rovided with a peripheral recess 38 (see Fig. 8) for the reception of the roller 37 so that the latter will dro therein and the parts lock together, wit the member 23 in its lowest position and I have provided means for closing a ortion of t is recess to prevent any back ash of the ar and still make it easy for the roller to find its place in the recess; which means I will here describe.

Referring to Fig. 8. The recess 38 is cut away on one side at 39 and secured against the side of the cam is a movable plate 40 which continues the periphery of the cam at the point 39. This late 40 is fulcrumed on a pm 43 so as to 1'00 and has an arm 41 which is forced downwardly by a spring 42 so as to hold the plate ,40 in the normal position shown in Fig. 8. When the member 23 is forced downwardly by positive means, to

soasis i til the roller finds its final position as shown crum support for a pivotal lever 58.

I the shaft 25 and toward the lever 58.

traveling on the face of cam 34 so that the latter revolves, an up and down moveinent imparted to the member 23. When this work is completed the member 23 is lowered and the groove 38 allows the roller 37 to drop so as to take the hooks out of operative position. As the roller 37 would be apt to enter the groove or recess 38 at each revolution of the cam 34 I have provided means for sustaining the member 23 while the roller 37 is passing the groove 38 and in the present device this feature also serves to raise and lower the member 23 into and out of action.

The main shaft 25 is provided with a cam 44 which is shown detached in Fig. 12. The barrel 45 of this cam fits over the shaft 25, is elongated and on one end, there is an open cam 4-6, while on the opposite end there is a; flange 47 from which extends inwardly a cam shoe 48 having a slanting surface. The member 23 has, near its lower end (see Fig. 11) inwardly projecting arms 49 and 50 which straddle the barrel 45 and shaft 25. and on the ends of these arms there are thimbles 51 and 52, each of which is provided with a bowl 53. 54. which moves in the thimble in the longitudinal direction of the thimble and at. right angles to the cam 44. Pins 55 on these bowls extend through elongated slots 56 in the thimbles. On the member 23 l have provided a bracket 57. extending laterally thereof, providing a full- The lever 58 (see Fig. 13) rocks on its axle 59. This lever is provided with inwardly extending arms .60 and 61 which have slots 62 i and 63 each of which engages one of the pins 55 on the bowls 53 and 54. By rocking the lever 58 the bowls will be moved alternately toward the. cam 44. It will be apparent that the bowls and also the lever 58 move with the member 23 so that their position will change.

Secured to a suitable support Iprovide a bracket 64, having a top plate (35 over which engages a Wedge block 66. The latter has a recess 67 to fit over the plate 65 and this block 66 adapted to move slightly toward The outer piece 68 of this block engages alternately against the inolinal shoulders 69 of the lever 58,a\' 'ording to which one is in alinement therewith. When the block 68 engages one of the shoulders 69 it causes the lever 58 to rock. forcing one of the bowls into the'path of the cam 44 and the other out.

The Wedge block 66 which is on the end of a rod 7 0, the latter being operated by the jacquard, remains normally in the position shown in Fig. 3, but. when the rod 70 is end .to a. pin 73 on the wedge block and at its other end to a pin 72 on the bracket to cause the wedge block to return after each operation as soon as it is withdrawn from the path of the cam shoe 48.

The rod 70 which moves the wedge block into action to either start or stop the mechanism is of any desired shape to be free of other parts of the machine and is directly operated by the jacquard. By reference to Fig. 4 it will be seen that this rod 70 extends forwardly and terminates under the jacquard 74. In the jacquard is a bellcrank lever 75 having one end engaging in a recess 76 in the rod 70 and the other end 77 is tripped by the lifter 78 or other element controlled by the jacquard, which latter is directly operated upon by the pattern roll. A shaft 79 is suitably supported behind the members 23 and 24, which is oscillated by the member through the action of a lever 80 connected therewith and fulcrumed at 81 to the lower portion of the member 23, so that as the latter moves up or down it rocks the shaft 79. ()n the opposite end of the shaft 79 I provide an arm 8:2 which rocks therewith, and moves into the path of a clutch 83 which is carried upon an arm 84 formed integral with the gear 26. A spring secured to the upper end of the clutch and to a pin 86 trips the clutch forward, and when the arm 82 is moved out of the path of the clutch the spring will cause the projection 87 of the clutch to enter the recess 88 of the collar 89, secured upon shaft When this takes place the gear 26 will revolve with the shaft 25 until the arm 82 again comes 'into the path of the clutch and throws the latter out of action.

The operation of the machine is as follows:

Assuming the machine to be as shown in Fig. l the border forming mechanism is locked in its inoperative position. The jacquard lifter 78 will move upwardly when i operation. When the rod 70 moves forward it throws the wedge block into the path of the cam, shoe i8 and as the latter revolves it mdves the wedge bloch laterally against the action of the spring 71 until the wedge block, engages against the upper shoulder 69 member 23 thus rises it rocks shaft 79 through the action of the lever 80 and the shaft 79 carries the arm 82 out of the path of the clutch 83. The spring of this clutch causes it to engage the recess in the collar 89 causing the gear 26 to revolve with shaft 25. Previously-the gear 26 was lying idle on shaft 25. When gear 26 revolves the motion will be transmitted to shaft 30 through the chain of gears. The member 23 having been raised as described, the roller 37 is raised to the periphery of the cam 34.

With the shaft 30 in motion the cams 33 and 34 are both revolving. The cam 34 moves the member 23 slightly up and down at each revolution, and through its connection the latter imparts the necessary vertical movement to the festoon hooks. The cam 33 through the roller 35 moves the member 24 up and down which, through its connections with the needle hook bar, imparts the necessar lateral movement to the hooks. The big lest part of the cam 46 is sustaining the member 23 while the roller 37 is passing over the aperture 38 in cam 34. So long the machine is in the position just described the machine forms a buttonhole stitch. hen another aperture in the roll operates the jacquard pin 78 the wedge block will be again forced laterally by contact with the cam shoe 48 and as the member 23 is now in a raised position the lower shoulder 69 will be in alinement with the wedge block so that the lever 58 will be rocked back to its former position. As it does so, the bowl 54 will be removed from the path of the cam 46 and bowl 53 will be moved into the path of the cam. As the bowl 53 is below the cam the latter will force the member 23 downwardly, taking the festoon hooks out of operative position. The roller 37 will then engage in recess 38; When the member 23 starts to move down out of action it will rock the shaft and arm 82 back to their former position and the latter into the path of the clutch. The clutch will be disengaged from the collar 89 and the chain of gears being thrown out of action the shaft 30 with its cams will no longer move. The festoon mechanism is then locked out of operative position, ready for the next operation.

It will be apparent that my improved machine is positive in its action and the various movements are so relatedjhat the a i i a great improvement over former devices. The device may be applied to any of the well known forms of embroidering machines now i in use. The connection of the device with the jacquard is very simple, and the latter is not complicated thereby. Heretofore many of the mechanical actions were transmitte all the way from the jacquai d which is obviated by the present machine.

Having described my invention what I claim is:

1. An embroidering machine embodying a festoon mechanism, a supplemental shaft having a cam provided with a r cess, a memher on the festoon mechanism adapted to be operated by said cam and to engage in said recess, a main shaft and a cam thereon adapted to move said festoon mechanism into and out of action on its cam.

2. An embroidering machine embodying a pattern mechanism and a festoon mechanism, a supplemental shaft liaving a cam provided with a recess, a member on the festoon mechanism adapted to be operated by said cam and to engage in said recess, a main shaft and a cam thereon adapted to move said festoon mechanism into and out of action on its cam and controlled by said pattern mechanism.

3. An embroidcring machine embodying a festoon mechanism, an operating shaft provided with a cam, and a plurality of bowls adapted to be alternatel engaged by the said cam to move said estoon mechanism into and out of operative osition and means for alternately moving the bowls into engagement with said cam.

4. An embroidering machine embodying a pattern device, a festoon mechanism, an operating shaft provided with a cam, and a plurality of bowls adapted to be alternately placed mto engagement with said cam b the pattern device, for the purpose of posttioning the festoon mechanism.

5. An embroidering machine embodying a festoon mechanism including operating members, a secondary shaft, normally idle, adapted to actuate said oper ting members, a main shaft, a clutch adap d to throw said secondary shaft into operative connection with the main shaft, a cam on the main shaft adapted to place an o crating member into operative position and means whereby the positionin of said operating member by the cam wil operate said clutch and place the secondary shaft into operation by the main shaft.

'6. In an embroidering machine the combination of a pattern mechanism, a festoon mechanism, a main shaft rovided with a team, a member adapted to e moved toward said shaft by the pattern device to cause said member to be engaged by said cam and moved at right angles to its first movement, a second camcairried upon said shaft and a plurality of bowls carried by a member of the festoon mechanism and adapted to be alternately thrown into engagement with said second cam, by said cam and pattern operated member, for the purpose of positioning said festoon mechanism.

7. In a machine of the class described, the combination of festoon mechanism, a main shaft, and operating members for operatin said festoon mechanism, a cam on said sha 1; adapted to position the said festoon mechanism, a plurality of bowls carried by one of said operating members, and means for causing said bowls to alternately engage said cam to move said festoon mechanism into and out of operation.

,8. In a machine of the class described the combination of a pattern device, and festoon mechanism, an operating member for the festoon mechanism, a main shaft having a cam, bowls carried by the operating member, and means operated by said pattern device adapted to cause said bowls to alternately engage said cam to move the festoon mechanism into and out of operative position.

9. In a machine of the class described, the combination of a pattern device, of needles and festoon hooks, and means for operating the latter, comprising a movable member ada ted to operate said festoon hooks vertica ly, a second member for moving said hooks horizontally, a main and, a supplemental shaft with means for transmitting power from the former to the latter, a lurality of cams on said su plemental siaft adapted to operate said hooli operating members, a cam adapted to raise one of said hook operating members into action on its cam, and means whereby when the hook operating member is thrown into action it will set into operation the said an plemental shaft.

10. In a machine oi the class described the combination of a pattern mechanism, a plurality of festoon hooks, movable members for operating said hooks, a main and a supplemental shaft with means for transmitting power from the former to the latter, cams on the supplemental shaft, means on the hook operating members for engagin said cams consisting of rollers, one oi whic is adapted to enter a recess in one of said cams, and means controlled by the pattern mechanism for raising one of said hook operating members to disengage its roller from said cam recess and set it in position to be operated by its said cam.

11. In a machine of the class described the combination of festoon hooks and means for operating them comprising vertical movable members, cams for reciprocating the movable members and means for throwing said books into operation, comprising a cam and means for causing one of said vertically movable members to engage, alternately above and below said last cam, to throw said vertically movable member into operation on its cam.

12. In a machine of the class described the combination of festoon hooks and means for operating them comprising movable members, and cams for operating them, means for throwing said hook operating members into action, comprising a cam, bowls on one of said movable members above and below said cam and means for alternately throwing said bowls into operation with said cam, comprising a lever, engaging with said bowls on opposite sides of its fulcrum, a wedge block adapted to rock said lever and means for operating saidiwedge block.

13. In a machine of the class described the combination of festoon hooksand means for operating them comprising movable members and cams for operating them, means for throwing said hook operating members into action, comprising a cam, bowls on one of said operating members above and below said cam and means for alternately throwing said bowls into operation with said last cam, comprising a lever carried by said movable member, and engaging with said bowls on opposite sidesof its fulcrum, a cam shoe carried on the operating shaft of the machine, and a wedge block operated by a pattern mechanism and adapted to be forced by said cam shoe against said lever to rock the same.

14. In a machine of the class described the combination of pattern mechanism festoon hooks and means for operating the latter comprising a driving shaft, movable members for operating said hooks, cams for operating said movable members and means for throwing said movable members into operative engagement with said cams, compr sing a cam, on said drivin shaft, bowls carried by one of said movab e members adapted to be thrown into engagement with said last cam, alternately above and below the same, a lever fulcrumed to one of said movable members and ada ted to move said bowls and means for roc in said lever comprising a cam shoe carrie fby the driving shaft, and a wedge block? adapted to be thrown into the path of said cam shoe by the pattern mechanism, whereby the said wedge block will rock said lever,

15. In a machine of the class described the combination of attern mechanism festoon hooks, a inain iving and a supplemental shaft, means for transmitting motion from the driving to the sup lemental shaft, movable members adapte to operate said festoon hooks, cams on the supplemental shaft adapted to operate said movable hook members, means operated by the positioning of one of said movable members to throw, the said power transmitting means into and out of action and a plurality of bowls carried by said lever will be rocked and the movable one of said movable members, a cam for member raised or lowered.

raising ifmld loweging sai'i movallzlle memger, Signed this 22nd day of January 1908.

a ever ucrume E0 5111 move e mem er, I

and engaging the bowls, a cam shoe on the JOSEPH GROEBLI' operating shaft and a wedge block adapted Witnesses: to be moved into the path of the said cam HENRY Eem,

shoe by a pattern mechanism, whereby the A. Lmanmneu'r.

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