US243740A - Embroidering attachment for sewing-machines - Google Patents

Description

,(Nd Model.)

1B. T. THoMAs- EMBROIDERING ATTACHMENT FOR' SEWING MACHINES.

No. 243,740. PatentQdJu1y5,1881-.

A unnllmlljmmnnm @www UNITED STATES EDDYT. THOMAS, OF NEW YORK, N.

SEWING MACHINE COMPANY, OF ORANGE, MASSACHUSETTS.

PATENT OFFICE..

Y., ASSIGNOR TO THE GOLD MEDAL c EMBROIDERING ATTACHMENT FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 243,740, dated July 5, 1881.

To all whom 'it may concern:

Be it known that I, EDDY T. THOMAS, of New York, county of New York, and State of New York, have invented a new and useful Improvement in Embroidering Attachments for Sewing-Machines, of which the following description,in connection with the accompan ying drawings, is a specification.

This invention in sewing-machines has reference to an attachment for producing an embroidery-stitch on top of the cloth, there being combined with the embroidery attachment a zigzag-feeding mechanism, which, operating upon the surface of the'material resting upon the cloth supporting bed of the machine, moves the said material to and fro laterally, thus causingthe embroidery thread and stitching to be laid in zigzag lines.

Figure 1 represents, in side elevation, a sozo called New Home 7 sewing-machine with my improvements attached thereto. Fig. 2 is a partial front elevation thereof. Fig. 3 is a detail of the guide for thcforward end of the zigzag-feeding device, the upper end of the guide z 5 being attached to the rear side of the head in which the needle-bar reeiprocates. Fig. 4 represents in line A a stitch such as the embroidery attachment will make without the zigzag-feed ing mechanism, and the lineB with it. Fig. 5

3o is a top view of the presser-footand the threadcarrying hook located therein on a larger scale; Fig. 6, a detail, showing part of shaft la and its pinion Fig. 7, a detail of eccentric on shaft Z,- Fig. 8, an enlarged detail of the zigzag-feeding device, and Fig. 9 a modification of the zigzag-feeding device; and Fig. 10 is a sectional detail on dotted line me, Fig. 1, but on a smaller scale.

The embroidery attachment herein shown is 4o composed of an annular rotary reciprocating hook, a, mounted on and madeto loosely surround a short tube, S, the said tube being coincident with the needle-hole in the presserfoot. The shank of the hook c has upon it a series of teeth, 9, to be engaged by teeth of a small pinion, 10, connected with the lower end of a twisted rod, b, which, extended up through the slot in a plate, c, secured to the lower end 0f the needleibar d, has its upper end held in Application filed February 26, 1881. (No model.)

an ear of the bracket e, forming part of an up- 5o right extended upward from the presser-foot f, which is connected withy the usual presserfoot bar g by a suitable screw, instead of the presser-foot which is used for plain sewing. This embroidery attachment is not of my invention, but is well known in the market as the Empress Embroiderer Attachm ent, The annular hook a of this attachment lays a silk Or other large or colored thread, 12, upon the upper side of the fabric, in coilA or loop form, 6o under the usual descending eye-pointed nee-4 dle, the thread 13 carried by the needle contining on the fabric the embroidery-thread laid thereon by the annular hook a, making astitch such as represented in the line A, Fig. 5.

In order to produce a line of zigzagembroidery-stitches, such as represented in the line B, the upright shaft h of thesewing-machine has been provided with a pinion, t', (see detail,

- Fig. 6,) to engage the'toothed wheelj on the up- 7o right shaft l, having` its bearings in a yoke, m, suitably secured to the cloth-supporting bed n of the machine, but so as to be detachable therefrom, if desired. This shaftlis provided with an eccentric, o, (see detail, Fig. 7,.) about which is placed the eccentric-strap p, secured to the end of the rod q, havingattached to its front end the toothed or rough-surfaced zigzag-feeding device r, which rests upon the cloth or other material laid on the cloth-supporting 8o bed n in front of the presser-foot f, the cloth being entered between the latter and the usual cloth-feeding device s. (Shown in Fig. 2.)

The forward end of the rod q at the rear of the feeding device r is embraced and guided by the forked lower end of the guide t, adjustably attached by the screw a to the rear side of the head C, in which the needle-bar is made to reciprocate, as usual. The upright part of the guide t has connected with it by screw w a 9o spring, x, the lower end of which (see Fig. l) rests upon the rod q and holds the zigzag-feeding device r down in contact with the surface of the material. The rod q is provided with a small loop, 2, the upper right-angled end of which is made to enter the slot 3 in the guide t, the curved nger 4c of a lifter, 5, pivoted at 6 upon the front side of the bracket t, being extended under the right-angled projection of the said loop 2 to enable the zigzag-feeding` device r to be lifted, when desired, from the cloth,

.as represented in Fig. 2.

The rotary shaft h and the pinion i thereon, acting upon the toothed Wheel i, turn the shaft l and eccentric 0 thereon, causing the latter to reciprocate the rod q and the zigzag-feeding device r inthe direction of the length of the cloth-supporting bed, and at right angles to the direction of the movement of the material or fabric by the action of the usual feeding device, s. Thezigzag-feedin g devicerthusmoved moves the cloth or material laterally as it is moved forward by the feed s, which results in laying the embroidery-thread upon the surface ofthe fabric in zigzag or waved lines, as represented by theline B, Fig. 5, the needle-thread securing the said embroidery-thread in place.

Instead of the particular embroidery attach ment herein shown I, may employ any wellknown equivalent embroidery attachment having a thread-carrying arm to lay the embroidery-thread upon the surface of the material to be caught and held by the thread carried by the usual sewing-needle.

The zigzag-feeding wheel r, instead of having blunt projections, may have pin-points, as in Fig. 9.

The eccentric-yoke p, which embraces the eccentric o, will in practice be detachably connected with rod q by a screw, 14, (see Fig. 1,) to permit the said yoke to be detached from the eccentric o, and the latter to be removed from shaft Z, to be replaced by another eccentric, of larger size. The diameter of the eccentric, and the speed of rotation of the shaft l with relation to the rotation of shaft h, moves the zigzag-feeding device a greater or less extent of lateral movement in one and then in .the other direction, thus causing the stitches upon the upper surface of the cloth to be extended over a greater or less space or width.

The relative sizes of the pinionz'and toothed wheel j of the embroidery-attachment shaft l may be such as to move the zigzag-feeding device and insure the formation of two or more stitches during the time that the feeding device fr moves the fabric in one and then in the opposite direction.

I claim- 1. The independent shaft l, its toothed wheel j, and the eccentric on the said shaft, combined with the eccentric-strap, rod q, and zigzagfeeding device fr, and with the bracket to guide the rod q, substantially as described.

2. The presser-foot and the feeding device s, located below and adapted to act on the under surface of the material, combined with the independent laterally-movable feeding device r, located above the material in front of the presser-foot, substantially as described.

3. The presser-footy and annular rotary reciprocating hook a carried by it, and the feeding device s, combined with the independent laterally-reciprocating zigzag-feedingdevice 1, and means to operate it at right angles to the reciprocat-ion of the feeding devices, substantially as and for the purpose described.

4. The independent yoke m, secured to the frame of the machine,the short shaft l, having its bearings therein, and provided with the gear j, and eccentric 0,located above the cloth-plate of the machine, combined with the upright shaft IL and pinion i thereon, whereby the said eccentricis made to operate an embroidery attachment, substantially as described.

1n testimony whereofl have signed 1n y n ame to this specification in the presence of two subscribing witnesses.

EDDY T. THOMAS.

Witnesses:

SPENCER G. DoTY, SAML. D. ToMPKINs.

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