US593207A - g-roebli - Google Patents

Description

(No Model.) 4 Sheets-Shet 1.

J. A. GROEBLI. EMBROIDBRING MACHINE.

Patented Nov. 9, 1897.

ITNESSES r, BY

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(No Model.) QSheets-Sheet 2. J. A. GROEBLI.

- EMBROIDERING MACHINE.

14 TTORNEIS.

4 Sheets--Sheet 3.

(No Model.)

J. A. GROEBLI. EMBROIDERING MACHINE.

No. 593,207. Patented Nov. 9,1897.

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J. A. GROBBLI. EMBROIDERING MACHINE.

No. 593,207. Patented Nov. 9,1897.

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UNITED STATES PATENT FFlCs JOSEPH A. GROEBLI, OF NEYV YORK, N. Y., ASSIGNOR TO THE KURSIIEEDT MANUFACTURING COMPANY, OF SAME PLACE.

EM BROIDE RlNG-MACl-HNE.

SPECIFICATION forming part of Letters Patent No. 593,207, dated November 9, 1897.

Application filed March 13, 1897. Serial No. 627,295. (No model.)

To all whom it may concern/:- driving-cam. Fig. 13 is a section on line 13 13 Be it known that I, JOSEPH A. GROEBLI, a of Fig. 11 or Fig. 12. resident of the city, county, and State of New In the drawings, Aindieates the main frame York, have invented certain new and useful of the embroidering-machine; B, the main 5 Improvements in Embroidering-l lachines, of driving-shaft, upon which the main drivingwhich the following is a specification. cam C is mounted. D is the shuttle-operat- My invention relates to embroidering-maing shaft, E the tension-regulating shaft, chines, and has for its object to produce a and F the bore-point-moving shaft. My instructure wherein various functions in the opvention has for its object to produce mech- 6o eration of the embroidering-machine may be anism for elfecting the operation of these sevperformed by mechanism under control of the eral parts from the jacquard. The jacquard jacquard. For instance, as I have shown in mechanism, which may be of the constructhe present drawings and will hereinafter tion shown in my United States Letters Patfully describe, I have produced a mechanism ent No. 528,632, granted November 17, 1894:, i5 embodying my invention wherein the moveis not here shown, but it will be understood ment and also the penetration of the borethat bars or connections may be run from points, the regulation of the tension, and the the connectors k of the said mechanism shown regulation or changing of the shuttles are efin the said patent, so that the various operafected from a common source of motion. tions hereinafter set forth may follow from 20 My invention will be understood by referactuating the said bars by means of the jacring to the accompanying drawings, forming quard. part hereof, in which- I will first proceed to describe the connec- Figure 1 is a side elevation of an embroidtions from the main cam-wheel G which move ering-machine embodying myinvention. Fig. and regulate the bore-points. It will be un- 25 2 is an enlarged side elevation of the driving derstood that as heretofore devised borecam and associated mechanism. Fig. 3 is a points were designed to enter a fabric side View of the lower end of the regulatingstretched upon a tambour-frame and to be bar for the tension mechanism, which will be withdrawn therefrom. hereinafter described, the same being shown My present invention contemplates causing 8o 30 as detached. Fig. 4. is a side elevation from the bore-points to approach the fabric to the the opposite side of the same end of the tenworking position with a long forward stroke, sion-regulating bar which is shown in Fig. 3, then to receive one or more short oscillations with its adjunctive devices in place. Fig. 5 while in the fabric in order to clear out the is a broken-away side elevation, on an en-- hole and to withdraw the bore-point from the 3 5 larged scale, of the mechanism forshiftingthe fabric to the working position, which lastbar for moving and regulating the motion of named operations maybe repeated adlibitmn, the bore-points. Fig. 6 is a section on ,the and then to be withdrawn from the working line 6 6 of Fig. 5. Fig. '7 is a plan view of the position by a long retractive stroke. In or mechanism shown in Fig. 2. Fig. 8 is a der to do this, I have provided one side or 0 o broken-away sectional side elevation of the face of the main driving-cam G with a camshifter for the bowl of the shuttle-changing path 0, which receives the bowl g, carried on mechanism. Fig. 9 is an end view thereof, an arm 9' of the three-armed lever G. When showing also a dotted section-line on which the bore-joints are intended to be inactive, the section Fig. 8 is taken. Fig. 10 is a side the bowl g is in the position shown in Figs. 5 5 elevation of the end of the tension-regulating 1 and 2, and is only entered into the cam 0 bar which is shown in Figs. 2, 8, and 4, the when the bore-boints are to be actuated. same representing the said tension-regulating This bowl enters the cam at about the point bar stripped of the yielding teeth for the pur- 1, and between the points 1 and 2 the move pose of clearer illustration. Fig. llis a side ment of the cam causes the bore-point to enter 0 view of the main driving-cam. Fig. 12 is a the fabric. Between the points 2 and 3 the side view of the opposite side of the main bore-points make two short oscillations and between the points 3 and 4 the bore-points are withdrawn from the fabric. The borepoints f are moved from the shaft or borepoint mover F, which is oscillated by the arm II, which in turn is swung by the link or rod h, which is engaged with the arm 9 by the three-armed lever G. This three-armed lever G is also provided with an arm g which is provided with a sliding crescent g, which is slid into or out of the cam c by means of the jacquard, as will be readily understood. When it is desired to actuate the bore-point, the crescent g is slid into the cam c, which thereupon swings the three-armed lever G on its pivot g far enough to bring the bowl g into the cam c on the opposite face of the main driving-cam, so that the oscillations which have been described will be imparted by the said cam to the shaft F through the medium of the arm 9 rod h, and rocking arm H. It is frequently desirable to change the amplitude of the vibrations of the bore-points, which in the present instance I have done by shifting the lower end of the rod 71. so as to engage it nearer to or farther from the center of the arm 9 Referring particularly to Figs. 1, 2, 5, and (5, it will be noted that the end of the arm 9' of the three-armed lever Gisperforated,forming a series of apertures g g g g g g 9 with which a pin it, carried on the lower end of the rod It, may be engaged. When the pin h on the rod h is entered into the hole 9 the oscillations of the said rod will be shorter than when the said pin is engaged with the outermost hole 9 motions of intermediate extent being imparted to the said rod by engaging the pin with the intervening holes g to g. This rod, in addition to its up-and-down movement, may likewise be shifted laterally by the jacquard to engage its pin 71 with the teeth 'i of an oscillating bar I. This lateral shifting may be effected by the connection h running to the jacquard and engaging with the arm h, as clearly shown in Fig. 6. This oscillating bar I is likewise provided with ears to which are pivoted inclined teeth i which are held yieldingly inward by means of the spring 1', engaging studs t on the said yielding teeth. This bar I extends upward and across the machine and is oscillated backward and forward by a swinging arm 7' of a three-armed lever J, carried on the shaft 9' and having depending arms j j for engaging in the cam c of the main driving-cam O.

The operation of so much of my device as I have now described is as follows: hen the bowl 9 is entered into the cam, the rockshaft F,governing the'bore-points,will receive oscillations of varying amplitudes, which oscillations will be constant as long as the pin it is entered into a hole of the arm g of the three-armed lever G. Then, however, it is .desired to increase or decrease the amplitude of the vibrations, this may be done byadjust-' ing the lower end of the rod 71. along the arm g as follows: If it is desired to shorten the vibrations, the jacquard is made to act at the proper instant to move the lower end of the rod laterally to remove the pin h from a hole in the arm g and enter the pin b into one of the slots between the teeth 2' of the reciprocating rod or connection I when the said rod or connection is moving to the left, as shown in Figs. 1, 2, and 5. This movement of the oscillating rod or connection Iis just sufficient to carry the lower end of the red h from one hole 9 to an adjacent hole 9 When this shifting has been accomplished the jacquard again acts to insert the pin h into the hole g which it is now opposite, so that further movements of the bore will be of less amplitude. By suitably arranging the jacquard the lower end of the rod may be stepped in either direction step by step within the limits of the arm 9 and when the rod h reaches either extremity of its adjusted positions the pin h is entered into the inclined slot of the yielding pivoted teeth '11 so that should further adjustment be attempted no damage will ensue.

I-will now proceed to describe the parts which constitute the shuttle-changing mechanism, and will have special reference to Figs. 1, 2, 7, 8, and 9. In these figures, K is a twoarmed lever, whose lower arm 71) is provided with a crescent (see Fig. 7) and whose upper arm 1& is connected to an upright rod or connection 70 which is shown as provided at its upper end with a cam-plate k (seen clearly in Fig. 8,) which cam-plate 70 is provided with a slot k On the shaft D of the machine a shuttle-working cam L is mounted, which has two working surfaces Z and 1-, each giving a different character of throw to a bowl 70 which may be engaged with one or the other of the cam-surfaces H, as will be explained. This bowl is connected to the yoke d, which works the shuttle-shaft d, and is shown as carried upon an arbor secured in a bracket 70 on the slide (1 of the yoke d. This bracket 10 is provided with a slide 70 from which projects a pin 70 which enters a slot 70 in the cam-plate W. This slide is shown as provided with an angle-piece 70 which is entered between collars 70 on the bowl k so as to slide the said bow] along its arbor 70 This bowl is suitably connected to shuttle-Working mechanism whose action depends upon the throw given by the cam L, whose action on the bowl depends upon which of the camsZ or Z is engaged by the bowl.

Shifting the bowl will engage it with one or the other of the cams, this shifting, as will readily be understood, being effected as follows: The crescent 70 is entered into the cam c by the jacquard, and thereupon the arm L: is swung by the cam 0, thereby swinging the arm 75, oscillating the upright rod 70, and shifting the bowl 10 from one of the cams Z or Z to the other. The tension-regulating shaft carries an arm 6, with a block 6, sliding in the are e of the ordinary secondary take-upbar mechanism, and is controlled by the lever M, to which is connected a rod m. (Clearly shown in Figs. 1 and 2 and in considerable detail in FigsQ3, 4, and 10.) The free arm of this link is providedwith a series of apertures m m m 711 771 and with a pair of yielding pivoted teeth m, which are provided with studs m and are held in place by the spring m These pivoted teeth are provided with inclined faces m. This free end of the arm extends into proximity to a pin m on the arm j and is embraced by a forked arm N, which is provided with a guiding-pin it, pass ing through a bracket Ct on the frame A of the machine. The arm N is shown as ext-en ding downward and provided with an extension at, which leads to the jacquard, so that the jacquard will operate to shift the arm N laterally, carrying with it the lower end of the rod or bar m to move the said lower end of the rod to enter the pin m into one of the apertures m m disc, of the said bar. In this manner, when it is desired to give the lever M an oscillating motion to adjust it, the jacquard operates to shift the said rod or link m laterally to engage it with the pin m of the constantly-vibrating lever J. Opposite to the pin m is a standard a carrying pins a a, which are spaced far enough apart to enter adjacent holes 177. m, &c., of the lower end of the link m, and when the jacquard operates to shift the lower end of the said link or off the pins a a it moves the same on to the pin m for the purpose of engaging the link m with the pin on on the swinging lever J. This maybe done while the leverJ is at either extremity of its swing, so that if it be desired to adj net the link m to the right the jacquard is so operated as to shift the link m off the pins a a when the lever J is at the left extremity of its swing and on to the pin m which, swinging to the right, will carry the link m to the right, thus adjusting it. This adjustment of the link is to an extent equal to the distance between the centers of adjacent holes 711- m m &c., so that when the adjustment has been effected the link m may be again shifted by the jacquard to enter the pins a a into a pair of holes a a Adjustments to the left may be similarly effected by timing the shifting of the link m to an instant when the lever J is at the right extremity of its stroke. This adjustage of the lever may be effected as often as desirable by first moving the lever m into en gagement with the pin in and then back into engagement with the pins a a", the teeth m providing against any breakage which might occur in case of false adjustment.

It will be understood that the various parts of the mechanism constituting my invention maybe and are used in an emhroidering-machine irrespective of its character and that the jacquard mechanism may be of any de sired construction.

WVhat I claim, and desire to secure by Letters Patent, is-

1. In an embroidering-machine, the combination with sewing mech anism of a bore-point for piercing the fabric, a bore-point mover and moving mechanism therefor and means for actuating the moving mechanism to cause the bore-point to make a long forward movement into the fabric and a short oscillating movement back and forth while in the fabric, followed by another long refractive movement, substantially as and for the purposes set forth. 2. In an embroidering-machine, the combination with sewing mechanism of a bore-point, a moving mechanism therefor and means for causing the said mechanism to drive the borepoint into the fabric, oscillate the same in the fabric a distance less than the ordinary stroke of the bore-point to enter the same into the fabric and to thereupon withdraw the said bore-point from the fabric.

3. In an embroidering-machine, the combination of bore-points, a connection It for oscillating the said bore-points, an oscillating arm for moving the said connection, an independent means for adjusting the said connection along the said arm and means for en gaging the said connection with the oscillating arm or with the adjusting device.

4. In an embroidering-maehine, the combination of bore-point-operating mechanism comprising in its structure a means for oscillating the bore-points, a means for altering the adjustment of the said bore-point-operating mechanism and a jacquard connection forcontrolling the means for altering the adj ustment.

5. In an embroidering-machine, an organism of mechanism for controlling the movement of the bore-points, the same comprising in its structure an oscillating-rod h, a swinging actuator g therefor, an adjuster I for adjustin g the rod 7L and means for engaging the rod alternately with either of the elements I or g substantially as set forth.

6. In an embroidering-machine an organism of mechanism for controlling borepoints, the same comprising in its structure an oscillating rod 77, and actuator g therefor, a reciprocating adjuster I for the oscillating rod h and jacquard mechanism for engaging the rod h with its actuator or its adjuster ad libt't'um.

7. In an embroideringmachine, the combination of the following instrumentalities in operative combination ,to wit a driving mechanism and bore-point mechanism of suitable construction, combined with adjusting means comprising an adjuster I, a laterally-movable oscillating rod h combined with an actuator therefor and jacquard mechanism controlling the oscillations of the oscillating rod an d its engagement with the adjuster.

S. In an embroidering-machine, the combination with needle-operating mechanism of two-throw cam mechanism adj un ctive thereto and arranged to impart varying throws, a bowl controlling mechanism for effecting functions in the operation of the embroiderin g-machine other than the needle-operating functions and adapted to be engaged with different portions of the two-throw cam at different times so as to receive throws of different characters according to its position on the cam, a shifting mechanism for the said bowl for engaging the said bowl with diiferent portions of the said cam and jacquard. mechanism for controlling the shifting mechanism for the bowls.

9. In an embroidering-machine, the combination of a shuttle-driver operable by cams of different throws, a two-throw cam mechanism, a jacquard device and mechanism intervening between the jacquard device and the tw0-throw cam for bringing a movable part into engagement with either part of the two-throw cam. I

10. In an embroidering-machine, the combination of a shuttle-driving mechanism and a changer therefor, comprising double-throw cam mechanism and an oscillatory cam-engaging device 70 combined with means for jacquard connections for regulating the engagement of the said mechanisms with the cam mechanism.

JOSEPH A. GROEBLI.

WVitnesses:

MAURIcE BLooK, GEO. E. MoRsE.

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