US87633A - Improvement in embroidering attachments for sewing-machines - Google Patents

Description

'w. CARPENTER. Embroideri ng Attachmenf for Sewing Machines.

No. 87,633; Patented March 9. 1869.

1 7006 z v/l'or UNITED STATES PATENT 'FFICE.

IMPROVEMENT INJEMIBROIDERING ATTACHMENTS FOR SEWING-MACHINES.

Specification-forming part of Letters Patent No. 87,633, dated March 9, 1869.

following is afull, clear, and exact description thereof,which will enable others skilled in the art to make and use the same, reference being bad to the. accompanying drawings, forming 7 part of this specification, in which-- Figure 1 represents a front elevation of my improved embroidering attachment. Figs. 2 and 3 are plan or. top views of the same. Fig. 4 is a side elevation, partly in section, of the same.

Similar letters of reference indicate corresponding parts.

This invention relates to anew apparatus which is attached tothe presser-foot of a sew in g-machine, and which has the object to guide two threads and to cross them at each stroke of the needle in such position that they are caught and held firmly by the needle-thread. In this manner a beautiful embroidering;stitch can be produced by means of a very simple and effective attachment.

The invention consists chiefly in the use of two swinging arms that are pivoted to a plate which is attached to the presser-foot'of any suitable sewing-machine, and in connecting these arms with an oscillating lever which is swung back and forth by a cam attached to the needle-bar. The detailed construction is hereinafter more fully described, the principle being to cause the swinging arms to cross the threads which they respectively guide, so that the needle-thread may hold them to the fabric wherever they cross each other.

A in the drawings represents a plate which is attached to the presser-foot of a' suitable sewing-machine. It is in an upright position, and to its lower part is attached a horizontal plate, B, projecting from the back and front face of A. To the front of the plate A is pivoted, by means of a pin, a, a slotted plate, 0, as shown.

To the rear part of the plate B are pivoted, by means of a pin, 1), or by separate pins, two curved arms, D E,which fit around the plates A O, and with their front ends over the slotted front end of the plate B, as in Figs. 2 and 3.

From the rear of the pivoted plate 0 projects I Having thus described my invention, What an arm, 0, which has two hooks, d and c, formed on it, that fit around pins d a, formed respectively on the bars D and E, at equal distances from, but on opposite sides of, the pivot b, as in Figs. 2 and 3. Thus if the plate 0 is oscillated on its pivot on it will cause the bars D E to swing on their pivot or pivots b, and to have their perforated front ends, f f, either drawn apart, as in Fig. 3, or brought behind each other, as in Fig. 2. A spring, h, is secured by a pin, 9, at its upper end to the plate A, in line with the needle, and is at its lower end connected by a pin, i, to a pointed bar, F, said bar being near its lower end pivoted to a pin, Z, projecting from the lower part of the plate U, as in Fig. 1. The spring It has a tendency to remain straight and to retain the pin 2' perpendicularly under the pin g.

To the needle-bar G, Fig. 4, is secured a pointed projection, j, which moves down in front of the pin 9. r

K K are pins attached to the plate 0 for supporting the upper end of the bar F. When the lower end of the plate 0 is swung to the right, as in Fig. 1, the pressure of the spring It will throw the upper end of the bar F against the pin K, and by this movement of the plate the ends of the bars D E are drawn apart, as in Fig. 3. When the needle now comes down its projection j presses upon the inclined righthand side of the bar F, and causes the lower end .of the said bar and that of the plate 0 to swing over to the left, as shown by red lines in Fig. 1, causing the ends of D E to overlap, as in Fig. 2, and the upper end of F is brought against E. When the needle moves up the bar F yields and allows the cam j to pass without disturbing the position of 0; but when the needle next comes down it bears against the opposite end of the barF, that now rests against the pin K, and causes the arms D E to be spread.

Two threads, m and 'n, are both drawn from ever they are crossed, as in Fig. 3.

I claim as new, and desire to secure by Letbar F, spring k, and sliding calm j, all made ters Patent, is- I w and operating substantially as and. for the pur- 1. The reciprocating camj, the swinging bar pose herein shown and described.

F, and spring 11,01 its equivalent, in oombina- The above specification of my invention tion with the swinging plate O,whioh is moved signed by me this Zith clay of April, 1868.

by the bar F, as set; forth. WILLIAM CARPENTER.

2. The arrangement and combination, with Witnesses:

each other, of the presserA B, swinging plate WM.,1 MCNAMARA,

0, arm 0, pivoted thread-guides D E, swinging ALEX. F. ROBERTS.

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