US226206A - Embroidering attachment for sewing-machines - Google Patents

Description

H. P. SGHLUETER. Embroider ingAttachment for Sewing-Machine.

No. 226,206. Patented April 6, 1880.

Witnesses N.PEI'ERS FHOTO-LITHOGRAFHER, WASHINGTON, n. C.

ihvirnn TATES HENRY r. SOHLUETER, or CINCINNATI, OHIO.

EMBROIDERENG ATTACHMENT FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 226,206, dated April 6, 1880.

Application filed December 29, 1879. i

To all whom it may concern Be it known that I, HENRY F. SOHLUETER, of Cincinnati, in the county of Hamilton and State of Ohio, have invented a new and Improved Embroiderin g Attachment for Sewing- Machines; and I do hereby declare the following to be a full, clear. concise, and exact description of the same, sufficient to enable those skilled in the art to which my invention belongs to make and use it, reference being had to the accompanying drawings, forming a part of this specification, wherein- 4 Figure l is a perspective view of the attachment. Fig. 2 is a side elevation of the same. Fig. 3 is a top-plan view; Fig. 4, a plan view with the top plate removed. Fig. 5 is a diagram showing the formation of a coil in the embroidery-thread when the needle of the sewing-machine has completed its descent. Fig. 6 is a diagram showing the operation of forming the loops in the embroidery-thread when the needle is raised; and Fig. 7 is a plan view of the embroidery-thread as laid and stitched to the cloth.

Similar lettersof reference in the several figures of the drawings denote the same parts.

My invention has for its object to provide an improved embroiderin g attachment for sewing-machines which shall lay the thread or braid in successive coils or loops, so that the machine shall stitch each coil to the cloth. To this end the invention consists in the construction of the attachment, as hereinafter more particularly described.

In the accompanying drawings, A A represent two horizontal sector-shaped plates, secured together, with a geared sector, B, pivoted between them to vibrate freely. Each plate has an annular front extension, 0, and the forward edge of the lower plate and its extension, as well as the rear edge behind the pivot D, are formed with upturned projecting flanges E, to support the upper plate and its extension and form a narrow space between the two plates for the movements of the geared sector.

The top plate carries an upright sleeve, E, having a set-screw, by which the attachment is fastened to the presser-bar of a sewingmachine after the foot thereof has been removed, and the under side of the bottom-plate extension is shaped to form a presser-foot on the attachment.

F is an annular pinion, placed within the lower extension, (3, to engage the gear-sector, and provided with a thread-looping hook, Gr, upon its upper surface. This pinion is mounted upon a short tubular hub, H, around the central opening of the extension, and prevented from slipping off the hub by the top plate, A, the opening in the extension of this plate being large enough toexpose a portion of the pinion, so that the looping'hook shall rotate within such opening when the pinion is turned by the gear-sector.

The front side of the hub projects above the pinions slightly to form a guide, I, by which the looping-hook is enabled to make the loop in the thread.

The hook maybe fastened directly to the pinion or to an overhanging flange, J, thereon, either method being practicable.

The attachment is applied to the presser-bar of a sewing-machine, so that the needle shall pass through the center of the hub G, and the geared sector is operated from the needle-bar by means of a bell-crank or angular lever, K, pivoted at its angle to an upright, L, at the rear of the attachment, with its long arm fitting over a pin or screw in the side of the needle-bar, and its short lower arm, M, forked to receive a laterally-projecting arm, N, on the sector. The forked end M of the lever has a certain play on the arm N, and serves as a take-up for the embroidery-thread.

The operation of the attachment thus constructed and applied to the sewing-machine is as follows: The embroidery thread or braid is mounted upon a suitable holder and tension device connected with the attachment on the sewing-machine. The end of the thread is first passed through'a guide-eye, O, 011 the plate A, at the right of the looping-hook; thence through one of a series of holes, P, in the forked arm of the operating-lever, to a guideeye, Q, on the attachment, at the left of the looping-hook, and finally down through the hub G onto the cloth on the table of the sewing-machine, where it is held by the presserfoot of the attachment until stitched to the cloth.

In the operation of the machine, when the needle is down to its farthest extent in the cloth and the first loop is formed in the embroidery thread or braid, as shown in Fig. 5 of the drawings, the looping-hook occupies a position in rear of the thread, which is stretched by the take-up arm M. When the needle rises the take-up slackens the thread, and the sector and pinion rotate the looping-hook forward to catch the thread in its path and carry it round to the opposite side of the needle, as shown in Fig. 6. In this movement the guide I, by deflecting the thread, enables the hook to form the loop and keep it clear of the needle, while the unlooped portion S of the thread is stretched across the extension 0, between the looping hook and guide-eye, as shown in Fig. 6, when the looping-hook has been carried round in contact with a spring, T, secured to the attachment.

The spring is employed to keep the loop from slipping 011' the hook until it starts to recede, and its elasticity enables it to yield slightly to prevent injury to the point of the hook. Just before the looping-hook reaches the spring the needle has cleared the cloth, and the latter is fed forward by the sewingmachine, so that the sewing-thread shall be on one side of the part S of the embroidery-thread and the needle on the other side, for the purpose of making" a stitch over the embroiderythread when the needle again descends.

The hook remains stationary until the needle descends and touches the cloth, there being sufficient play in the. fork of the take-up arm for this purpose; but when the take up arm comes in contact with the arm of the sector the latter starts the pinion in motion and causes the looping-hook to recede, when the loop slips off the hook and also escapes from the guide I. 'As the needle continues to descend the arm M takes up the slack in the thread and draws the loop down around the needle, at the same time stitching the loop previously formed to the cloth.

By these repeated operations the embroidery thread or braid is laid in successive coils and the coils stitched to the cloth, as shown in Fig. 7.

Themovements of the looping-hook are positive, because the pinion is rotated in both directions by the geared sector, and therefore the useof a spring for throwing the hook in one direction is avoided, as well as the use of guiding-cords and pulleys.

Having thus described my invention, what I claim is-- 1. The embroidery attachment for sewingmachines, consisting of the plates A A, the extensions 0 thereof, the pinion F within the extensions, having the looping-hook Gr thereon, the geared sector B between the plates, the angular lever K for operating the sector, the thread-guide I, and the spring T, substair tially as described, for the purpose specified.

2. The spring T, combined with the attachment-plate A, the looping-hook, and mechanism for operating said hook, substantially as described, for the purpose specified.

In testimony of which invention I have hereunto set my hand this 19th day of December, A. D. 187 9.

H. F. SGHLUETER.

Vitnesses:

BENJ. H. 00X, N. K. ELLSWORTH.

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