US262002A - Attachment - Google Patents

Description

(No Model.)

P. H. CHILTON. `EMBROIDBRING ATTACHMENT.

Patented Aug. 1,' 1882.4

UNITED .l STATES PATENT OFFICE.

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

EMBROIDERING ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 262,002, dated .August 1, 1882.

Application filed January 30, 1882. (No model.)

To all whom it may concern VBe it known that I, FRANKLIN H. CHILTON,

of New York, in the county of New York and State ofNew York, have invented a new and useful Im provement. in Embroidering Attachments, ot' which 'the following is a specification, reference being had to theaccom pauying draw- 'lugs The invention relates to an improvement 1o in embroidering attachments for sewing-machines; and it consists in the general construction and arrangements of the operative parts and the specific construction of the foot of the attachment, as hereinafter fully described,and

particularly pointed out in the claims.

' Referring to the accompanying drawings, Figures 1 to 6 are detached views of the various parts of the attachment, which will be understood from the reference made thereto herezo inafter. Fig.7 is atop view of an embroiderer embodying the elements ofthe invention. Fig.

8 is a side elevation of same. Fig. 9 is a top view of a foot and devices, illustrating thefirst position ofthe carrier and detainer. Fig. 10 is a similar view,showing the last position ofthe carrier and detainer. Fig. 11 is a perspective view of the lever E. Fig.l2 is a top view, and Fig. 13 a front view, of amodilied form otpresser-foot. Fig. 14 is avfront View of a modilied form of embroiderer.

A denotes the foot of the attachment,wl1ich is'rmly secured to the part B, by which the attachment may be connected with thepresserbar ofthe sewing-machine. The part B,which 35 is composed of the horizontal bar a and vertical `hollow standard b, will by preference be cast in one piece, and in the front end of the bar a will be provided a vertical aperture and appropriate set-screw as means for applying 4o the attachment to the machine. The foot Ais secured at its rear portion to the lower sideof the bar a, the front portion being left entirely y open at x, so that the operator may he able to observe the formation ofthe stitches, and upon oneside of the foot is provided a lip, d, ar-

ranged in suitable relation for the reception of a thread-eye, e, and to constitute a bushing which will assistin preventing the embroidering-thread from getting beneath the thread- 5o carrying devices.

l Within the hollow standard b is placed the vertical post C, having secured upon its upper end, either by riveting or by a screw or otherwise. the horizontal arm D, the outer extremity of which is rounded and placed between thejawsf at the upper end of the short arm of the lever E, which lever is pivoted on the side of the standard b, and has supplied on the extremity of its long arm, which extends toward thefront of the device, the pivoted loop E', 6o

which, when the attachment is put into practical use, is secured upon and moves with the screw which holds the needlein the needle-bar, whereby movement is communicated to the operative parts of the attachment. o5

Upon the side of the casting B is secured a bracket, g, or similar contrivance, which eX- tends upward above the sweep ot' the lever E, and is supplied with an eye for the reception of the embroidering-thread. 7o

Upon the lower end of the post O is secured,- by riveting or otherwise, the rear end of the forked arms h, which extend forward, encircling the vertical portion of the foot A and supporting in their front extremities the segmental rack t', the teeth of which mesh with thepinion H, secured upon a screw or pivot in about the center of the foot A; The forked arms h, carrying the rack t', are iinmovably secured upon and at right angles to the post O. 8o Thus as the post is caused to have a semi-rotary movement by the operation ofthe lever E, the rackt' will oscillate back and forth over the presser-foot from one side thereof to the other and imparta rotary movement to the pinion H and its connecting devices.

Upon the lower surface of the pinion H is rigidly affixed the shank -of the oscillating thread-carrier l, the form of which is shown in a detached view in Fig. 9. From the shank 9o of the carrier I. extends the part or extension J, which is in the form of an are of a circle or hook, as indicated in a detached view. The point of the hook-shaped extension J is especially constructed with a view of preventing the embroidering-thread from getting beneath the carrier, and is supplied at its lower edge with the long arm m and at its upper edge with the short arm a, the operation of which l will appear in full hereinafter. Ioo

Immediately beneath and arranged to move simultaneously with the carrier I is the cam L, which passes outward from the center to the cireumf'erence ot' the shank ofthe carrier I, its sides heilig flat at its outer edge, describing a segment of a circle.

I prefer to construct the pinion H with a squared shank or shank of other angular form and to form corresponding apertures in the thread-carrierl and cam L, whereby in securing the same to the foot A the shank can be passed through the apertures in the carrier and cam, and through an aperture in the foot and riveted on the lower side thereof.

Upon the upper surface ofthe footA is placed the movable threaddetainer M, and pivotally secured in place by a pin or pivot situated upon the rear portion ofthe foot. The central portion of the shank of the thread-dctainer M is removed, forming an aperture, m', having tlattened sides and front edge, its rear edge being rounded. At the front portion of the threaddetainer Mis the hook-shaped extension N, supplied with a vertical lip, a', as indicated in a deu tached view. When the thread-detainer and thread-carrier Iarein position the cam Lwillbe inclosed within the aperture m', and by moving against the sides thereof, when actuated by the thread-carrier, will cause the detainer to oscillate upon its pivot, whereby the carrier and dctainer will have a simultaneous movement, with the effect upon the embroideringthread hereinafter set forth.

In practice the attachmen'tis applied to the presser-bar ofthe sewing-machine, and the le- .ver E connected with the needle-bar by means of the loop F, as hereinbefore set forth. The sewing-needle is threaded in the usual manner, and the embroideringthread is brought from a suitable tension and passed through the eye in the bracket g, after which it enters an eye on the lever E, and is then returned to the eyein the bracket g, and afterward carried downward and inserted through the threadeye e, the end of the thread being then passed under the front portion of the foot, and the work placed in position, the machine is set in motion. The first downward movement of the needle-bar and lever E causes the rack to sweep across the pinion H, the movement of which pinion at this moment carries the thread carrier I away from the front of the foot A toward the lever E, the point of the threadcarrier at the end of this (its backward) movement being in proper relation to the eye e to catch the embroidering-thread upon its return movement toward the front of the foot. Simultaneous with the movement, of the carrier I the cam L, which is rotated by the pinion H, strikes against the side of the aperture m2 and imparts to the thread-detainer M a backward movement on its pivot in a direction opposite to'that of the thread-carrier. Thus, when the lever E is depressed the thread-carrier and thread-detainer have opposite movementsthat is to say, the)7 rotate in opposite directions--whereby their hook-shaped points separate from each other and pass to the sides of the presser foot. TheY succeeding upward movement of the needle-bar andlever E operates to produce aoontrary motion of the thread carrier and detainer-that is, they are caused to rotate on their pivots toward each otherwhereby at the proper time the points ofthe carrier and detainer passeach other across the opening w, completely closing it. When the needle-bar and lever E is given the said upward movement the thread-carrier I catches the embroidering-thread and carries it past the center of the foot A. At the same time the thread-detainer moves toward and past the point of the carrier l, and in doing-so its lip a. moves against that portion of the embroidering-thread which extends from beneath the foot A to and around the shorter point of the hook on the end ot' the carrier I, whereby a loop is formed, as indicated, which, when the needle-bar descends, (separating the thread carrier and detainer,) is drawn to the proper size and sewed to the goods. Each downward stroke of the lever E separates the thread detaincr and carrier, as described, so as to allow the embroidering-stitch to be made, and cach upward stroke of the lever E brings them forward again across the front of the foot A, whereby the embroidering-thread is placed in the position above described for the format-ion of another loop. The movements above set forth are repeated with every stitch ot' the embroidery, one complete stitch being formed with each full movement of the lever E.

Particular attention is invited to the construction of the thread-carrier and thread-detainer, which have been made with a view of producing a perfect embroiderer with the consumption of the least amount of metal, labor, and expense. The extensions on the ends of both carrier and detainer coact to prevent at any stage of the operation the embroideringthread from getting improperly caught or from slipping beneath the operative parts ot' the attachment.

The attachment above described is the preferred embodiment of the invention; but in Figslt to'l7,inclusive,aremodications which I include within the scope ot' my invention. One ofthese modifications is in the foot A, covered at its sides. These sides cover the oscillating toothed rack and prevent the contact therewith of the fabric being treated.

In Fig. 17 the modification consists in the means employed for giving motion to the rack which operates the pinion H. In this attachment the rack is secured or formed on the lower end of a bar, B', pivoted at its upper end and having a cam-slot, D, running along its longitudinal center, in which slot a lug eX-` tending from the side ofthe lever E is made to travel and cause the bar B to vibrate, whereby the rack is given its movement back and forth against the side ot' the pinion H. The lever receives its motion from the needle-bar IOC IIO

in the customary way, and the movements of the thread carrier and detainer are the same as those set ont Vconcerning the main embodiment of the invention described in the first part ot' this instrument. l

What I claim as my invention, and desire to secure by Letters Patent, is- A 1. In an embroidering attachment, the press` er foot, oscillating `thread carrier, and the thread-detainer, the carrier and detainer being connected by mechanism to havea simultaneous movement communicated from a rack andV pinion, substantially as set forth.

2. In an embroidering attachment, the open presser-foot, the movable thread-carrier I, having at its end the elongated point m and the shorter point, n, the thread -detainer having the lip n and extended portion N, the Whole adapted to operate substantially in the manner hereinbefore described. i

3. Thepresser-foot, oscillating thread-carrier,

and pvoted thread-detainer having a move-A ment simultaneous with that of the carrier and being cut to receive the actuatingcam, substantially as set forth.

4. In an embroidering attachment, the oscillatin g thread-carrier, thread-detainer, and pinion and rack operated by the vertical post, the horizont-al arm, and actuating-lever, the carrier and detainer being connected by mechanism to have a simultaneous movement communicatedfrom the rack and pinion, substantially as setforth.

5. The actuating-lever having jaws to receive the end of the horizontal arm connected withrthe vertical post, the rack and pinion, thread-carrier, and the thread-detainer, the carrier and detainer being connected by mechanism to have a simultaneous movement communicated from the rack and pinion, substantially as setforth.

6. The actuating-lever having jaws to receive the end of the horizontal arm connected with the vertical post, the rack and pinion, thread-carrier, and thread-detainer, substantially as set forth.

7. The threadcarrier I, consisting of the shankV and the hook-shaped extension J, having at its end the elongated point m and immediate] y above it the shorter point, ln, the carrier being adapted to move in the arc of va circle, the elongated point m to sustain the embroidering-thread, and the shorter point, n, to carry it againstath read-detainer, substantially as set forth.

In testimony that I claim the foregoing improvement in embroidering attachments for sewing-machines, as above described, I have hereunto set my hand this 23d day of January, 1882. Y

FRANKLIN H. CHILTON.

Witnesses:

CHAS. O. GILL, HERMAN GUs'roW.

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