US320758A - chilton - Google Patents

Description

( Model.) 2 Sheets-Sheet 1.

P. H. CHILTON. BMBROIDERING ATTACHMENT FOR SEWING MACHINES.

No. 320,758. Patented June 23, L885.

m mm. m m- @w INVENTOR JW a! 6m 1 2 BY N. PETERS. HMO-whim Wuhibflm D- C.

( Model.) 2 Sheets-Sheet 2.

F. H. CHILTON.

EMBROIDERING ATTACHMENT FOR SEWING MACHINES. No. 320,758. Patented June 23, 1885.

SSES INVENTOR mw m BY ATTOPINBY llNTTED STATES PATENT Orrion.

FRANKLIN H. CHILTON, OF NEW YORK, N. Y., ASSIGNOR TO THE EMPRESS EMBROIDERER COMPANY, OF SAME PLACE.

EMBROIDERlNG ATTACHMENT FOR SEWiNG-MACHINES.

SPECIFICATION forming part of Letters Patent No. 320,758, dated June23, 1885.

Application filed May 29, 1884. (Model) To all whom it may concern:

Be it known that I, FRANKLIN H. CHILTON, a citizen of the United States, and a resident of New York, in the county of New York and 5 State of New York, have invented certain new and useful Improvements in Embroidering Attachments for Sewing-Machines, of which the following is a specification.

The invention relates to an improvement in 1 embroidering attachments for sewingmachines; and it consists in novel mechanism for applying a line of embroidering-thread upon a fabric in the form of a cycloidal chain, while the sewing-machine stitches each loop 1 thereof to the fabric as rapidly as the same is formed.

T he object of the invention is to produce an attachment which may be utilized for embroidering with any of the embroidering-threads now known with equal facility. It is well understood that worsted can only with great difficulty be applied in the form of a cycloidal chain to fabrics for embroidering purposes.

The present invention, however, obviates these 2 difficulties and renders it possible to apply this thread with the same facility as silk and cotton have been used heretofore in this art.

Theinvention will be fully understood from the detailed description hereinafter presented, reference being had to the accompanying drawings, in which- Figure l is a side elevation of an attachment embodying the invention applied to the presser-foot bar of a sewing-machine, the lever by which movement from the needle-bar is communicated to the thread-moving arms of the attachment being illustrated in an elevated position. Fig. 2 is a vertical section of same on the line a: x of Fig. 4., and illustrating the actuating-lever depressed. Fig. 3 is a top View of the attachment, illustrating the position of the working parts when the actuating lever is elevated, as in Fig. 1. Fig. 4 is a similar view, illustrating the position of said parts when the lever is depressed, as in Fig.

2. Fig. 5 is a bottom view of the attachment.

Fig. 6 is a view, looking at the front of the attachment, made on the line y y of Fig. 1.

Fig. 7 is an enlarged View of the stitch formed by the use of the attachment which is the subjeet of this application.

Fig. 8 is a side elevation, and Fig. 9 is a top view, of a modified form of the invention.

In the accompanying drawings, referring to Sheet 1 thereof, A denotes a vertical bracket, to which is secured, by a screw, 13, the actuating-lever G, and upon the lower edge of which is applied or formed the foot D. The bracket A, when the attachment is in use, will be secured to the presser-foot bar of the sewingmachine by a screw, m. The outer end of the lever Gis bifurcated and encompasses the head of the screw 3 which is utilized to secure the sewing-needle in the needle-bar z. The lever 0 receives its motion from the needle-bar dnr- 6 ing the operation of the machine in a wellknown manner.

Upon the inner face of the bracket A is pivotally secured the plate E, the lower end, F, of which is bent at right angles to the main 7o portion thereof, and terminates a proper distance above the foot D.

In the plate E are cut the cam-slots G H, the former being in rear of and connected with the upper end of the latter. The slot H registers 7 with the cam-slot I, cut in the bracket A, when the plate E is at the end of its rear stroke.

The actuating-lever O carries a pin J the free extremity of which passes through the slot I into the slot G or H, according to which of the latter is in line with the slot I. XVhen the plate E is at the end of its rear stroke, the pin J may freely move the full length of the slot H without affecting any of the working parts of theattachment, and duringthis movement of the pin J in the slot H the stitch formed by the attachment, as hereinafter described, and stitched to the fabric, may be fed from below the needle-hole K in the foot D.

\Vhen, during the actuation of thelever O by 0 I the movement of the needlebar, the pin J has reached the upper end of the slot H, it will follow the curved side a of the cam-slot I, thereby forcing the plate E forward upon its pivot until it (the said pin) is inclosed by and 5 comes in contact with the walls of the slot G. Upon the depression of the actuating-lever O,

the pin J, after passing the length of the slot G without actuating any of the working parts of the attachment, continues its path downward along the curved wall a, aforesaid, and causes thereby the plate E to move rearward to its former position. The distance the plate E may move forward or rearward will be governed by the width of the slot G, the inclination of the slot I, and the distance of the said slots from the pivot K, which secures the plate E in position.

A vertical pin, L, passes downward through the horizontal portion F of the plate E, and the rear end of the thread-carrying arms lettered M N, respectively, and into the slot 0, cut in the elevated portion of the foot D. The thread-carrying arms M N extend forward from the pin L through aslot, P, in the front wall of the bracket A, and one of them is provided with a thread-eye, Q. The front extremities of the arms M N are cut away, both upon their inner and outer edges, to form points lettered R S, respectively, in order that when said arms are spread apart, as in dicated in Fig. 3, a space will be formed between them in which the embroidering stitch may be formed and sewed to the fabric; and when the said arms are brought together by the downward movement of the lever O, the said points may pass each other, as illustrated in Fig. 4, whereby the pointsR S may be enabled, when the lever U is again elevated, to carry the embroidering-thread to the position indicated in Fig. 3. The arms M, N have a sliding movement, forward and backward, corresponding with the motion of the plate E, and during their forward and backward movement they are, respectively, opened and closed, (or moved from or toward each other,) by means of the pins T V and cam-slots \V X, the pins being inserted through the arms at about their center, and entering and caused to travel in the said slots when the plate E is moved on its pivot K. The slots V X are nearer together at their front than at their rear portion, whereby the pins T V, when the arms M N are moved forward, are caused to approach each other, and upon the rear movement of the said arms they separate from each other, whereby the opening and closing of the said arms M N is accomplished. The form of the arms MN is such that when they are carried rearward by the plate E their front portions will be one upon the other, the points R S passing each other a short distance, as shown in Fig. 4, and when said arms are carried forward the points will cross each others path and assume the relation illustrated in Fig. 3. The length of the movement of the arms M N toward or from each other will be governed by the length and inclination of the slots XV X. The inclination of the slots \V X controls also the speed with which the points R S shall move toward or from each other.

Upon the front wall of the bracket A are secured the eyes or guides Z, through which the embroidering-thread b will be passed preparatory to its being inserted through the eye Q in the arm M, whence it passes centrallybeneath the foot D.

Operation: The attachment will be threaded by passing the embroidering silk, worsted, or other thread through the eyes Z, the eye Q; from its outer side, and thence, if the lever C is depressed, directly under the foot D, or if it is elevated the thread will pass from the eye Q over and around the outside of the point It, and thence inward centrally below the foot, as indicated in Fig. 3. For the sake of description, it may be considered that theneedlebar and lever C are depressed and that the embroidering-thread and arms M N are in the position shown in Fig. 4:,which is that due to the depression of the lever 6. Upon the immediate elevation of the lever C the arms M N are moved forward and simultaneously separated, the effect of which is that the embroidering-thread is carried across and in front of the path of the needle by the points It S, as shown in Fig. 3, whereby is formed a loop which approximates the contour of a triangle, as shown. During the elevation of the lever O and separation of the arms M N, just described, the point S comes against the sewing-thread, lettered m, and moves it outward, at which time the thread on will extend from the fabric outward around the point S, and thence upward and inward to the eye of the needle. Then, upon the following descent of the lever O, the sewing-needle will enter the loop formed in the embroideringthread by the separation of the arms M N, as aforesaid, and illustrated in Fig. 3, and make a stitch across said thread, as indicated in said Fig. 3; and during said descent of the lever O the arms M N will move rearward and toward each other in rear of the path of the needle, dropping the loop and permitting the ma chine-stitch to be drawn taut, sewing the loop to the fabric. Upon the succeeding ascent and descent of the lever O, to repeat the operation above described, the loop formed and sewed to the fabric, as aforesaid,will have been fed beneath the foot D,whereby a fresh surface of the fabric will be brought into position to receive another loop of the embroidering-thread.

I do not limit myself to the precise mechanism hereinbefore described for moving the arms M N forward and backward and insuring their separation to form the embroideringloop, and in Figs. 8 and 9 I illustrate a modilied form of the invention, in which the arms M N perform exactly the same functions as the similarly-denoted arms in Figs. 1 to 6, inclusive. In Figs. 8 and 9 the arms M N are secured on a single pivot, f, to the front portion of a horizontal sliding rod, 9, which passes through a slot in the front wall of the bracket A, as in Fig. 2, and receives its forward-andbackward movement from the pivoted lever h, to which it is connected by a pin, 1', and which is actuated by the lever C from the needle-bar. The lever h has a pin, a, which en ters the cam-slot, consisting of the parts 0 19 cut in the lever O. The actuation of the lever h and the movement of the rod 9 and arms M N occur during the passage of the pin a in that portion of the cam-slot lettered 0, the lever 0 not having any effect on the working parts of the attachment during the movement of the pin 12 in the part of the slot lettered p. The arms M N are caused to open and close by reason of the inclined edges (lettered 1 2 3 4) of their front and rear portions coming in contact with the sides of the slot through which they pass in the front wall of the bracket A, aforesaid, during the forward-andbackward movement of the rod 9. The arms M N open and close and have a longitudinal sliding movement with precisely the same effect with res pect to the embroidering and sewing threads as the similar arms described in the first part of this instrument.

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

1. An embroidering attachment for sewing machines, consisting of the bracket A and foot D, a slide working in said bracket, arms M N, pivotally secured to the slide, and provided witlrpoints R S, one of the latter being provided with a thread-eye, and means, substantially as described, for giving the arms a horizontal sliding movement and their ends a transverse movement from or toward each other, substantially as set forth.

2. An embroidering attachment for sewingmachines, consisting of the bracket A and foot D, pivoted arms M N, having points R S, and one of which is provided with a thread-eye, and means, substantially as described, for imparting to the arms a longitudinal movement, and also for moving their front ends transversely across and beyond each other, substantially as set forth.

3. In an embroidering attachment for sewing-machines, the pivoted arms M N, having 0 points R S, one of which has a threadeye, in

combination with a. sliding piece, F, slotted pivoted plate E, actuating-lever G, the latter carrying a pin, J, which moves in the connected slots of plate E, and means for giving the arms M N a transverse lateral movement on their pivot toward or from each other, substantially as set forth.

4. In an embroidering attachment for sewing-machines, the pivoted arms M N, having points R S, one of which has a thread-eye, in combination with the pivoted plate E, having connected cam-slots G H and horizontal portion F, the actuating-lever O, carrying the pin J, and the bracket A, having cam-slot I, substantially as and for the purposes set forth.

5. In an embroidering attachment for sewing-machines, the arms M N, having points B S, one of which has a thread-eye, in combination with the sliding piece to which said arms are pivoted and which is in connection with an actuating-lever, the pins T V,and connected cam-slots W X, whereby the lateral movement of the arms M N toward or from each other is controlled, substantially as set forth.

6. In an embroidering attachment for sewing-machines, the pivoted arms M N, having points R S, one of which has a thread-eye, in combination with a sliding piece, F, to which the arms are pivoted and which is actuated from the needle-bar, the pins T V, cam-slots XV X, pin L, and slot 0, the whole being arranged substantially in the manner and for the purposes specified.

Signed at New York, in the county of New York and State of New York, this 26th day of May, A. D. 1884.

FRANKLIN H. CHILTON.

WVitnesses:

CHAS. (J. GILL, HERMAN GUsTow.

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