US1264885A - Seasm for sewed articles. - Google Patents

Description

J. BERGER, JR.

SEAM FOR SEWED ARTICLES.

APPLICATION FILED MAR. 3, I915.

LQM, Patented. May 7,1918.

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JOSEPH BERGER, 31%, 015 U'I'IGA, NEW YORK, ASSIGN'OR TO UNION SPECIAL MACHINE COMPANY, OF CHICAGO, ILLINOIS, A. CORPORATION OF ILLINOIS.

SEAM FOB SEVTED ARTICLEES.

Specification of Letters Patent.

Patented May f, 1915..

To all whom it may concern: I

Be it known that I, Josnrrr BERGER, Jr., a citizen of the United States, residing at Utica, in the county of Oneida, State of New York, have invented certain new and useful Improvements in Seams for Sewed Articles, of which the following is a description, reference being had to the accompanying drawing and to the figures of reference marked thereon.

The invention relates to new and useful improvements in seams for sewed articles, and more particularly to a flat duplex seam for uniting the edges of sections of fabric.

An object of the invention is to provide a duplex seam for uniting the edges of sections of fabric, which consists of connected anchoring stitches forming a retaining seam and connected covering stitches disposed within the borders of the first-named seam and forming a covering scam. I

In the drawings which show by way of illustration one embodiment of the inven* tion Figure 1 is a bottom plan view of a seam for uniting abutted edges, which seam embodies my improvements;

Fig. 2 is a plan view of the same;

Fig. 3 is a perspective view of the anchoring loops, the locking loops therefor and the cross thread, viewed from theunderface of the seam; and

Fig. 4: is a similar view of the tying down loops, the locking loops therefor and the cross thread, also viewed from the underface of the seam.

The invention comprises generally a duplex seam for sewed articles, consisting of trimmed edges of fabric sections which are joined, which edges are preferably abutted and these trimmed and abutted edges are united by a duplex seam; that is, two separate and distinct seams placed one upon the other. Said duplex seam consists of a retaining seam formed of anchoring stitches; these anchoring stitches consisting of needle loops laid parallel to each other on opposite sides of the meeting edges of the fabric sections and at a distance back from said meeting edges. These needle loops are joined on one face of the fabric by a cross thread and on the other face of the fabric by a looper thread which serves the double purpose of anchoring and joinin the needle loops and thus joining the sections of the fabric. A.

second seam is superposed upon the first seam and lies wholly within the borders thereof. This second seam is primarily for the purpose of covering the meeting edges of the fabric sections, and secondly, for ty ing down the joining threads of the retaining seam. Said second seam includes loops forms the double function of locking the needle loops and joining the rows of needle loops. The needle loops of the covering seam enter the fabric preferably in a line which is substantially midway between the lines passing through the needle loops of the first seam and at right angles to the meeting edges of the fabric sections. This arrangement of the respective needle loops of the two seams makes a more eflicient tying down of the threads of the first seam.

Referring more in detail to the drawings, the preferred form of my improved seam for sewed articles consists of a fabric formed in two sections 1 and2, the edges ofwhich are trimmed and abutted, as at 3. In the formation of my seam, these edges are first joined by stitches formed by a sewing mechanism which includes two spaced needles carrying the needle threads 4 and 5, respectively. The needle threads 4 and 5 are passed through the fabric some distance back from the abutted edges and this forms a strong anchoring hold on the fabric which makes the seam especially adapted for uniting the abutting edges of knit fabrics or woven fabrics which have been out, so as to destroy the selvage.

The needle threads 4-. and 5 form the op posed pairs of needle loops 6 and 7, respectively. Passing through the needle loops beneath the fabric is a looper thread 8. This looper thread 8 is formed into a loop 9, and first extends through the needle loop 7 and then through the needle loop 6 upon the opposite side of the abutted edges of the fabric and the loop is locked by the next needle loop passing through the fabric. One strand 10 of the looper thread loop 9 is separated from the other strand of the looper thread and passes around the next needle loop 7.

edges of the fabric sections.

face of the fabric the needle loops 14 and This forms a connecting thread which joins and anchors the needle loops beneath the fabric, which connecting thread passes back and forth across the abutted edges. On the upper face of the fabric there is a cross thread 11, which is laid back and forth across the abutted edges and passes about each needle loop. From the above, it will be apparent that I first form a seam consisting of two rows of anchoring loops which are respectively disposed on opposite sides of the abutted edges of the fabric sections and the rows are substantially parallel to said abutted edges. Connecting these anchoring loops and crossing the abutted edges is a thread above and a thread below the fabric.

After having formed the seam, as above described, I next form a seam disposed wholly within the borders of the first named seam and consisting of two rows of connected loops of needle threads 12 and 13, see Figs. 2 and 4. The needle loops 14c and 15 of these needle threads 12 and 13, respec tively, are opposed and pass through the fabric between the rows of anchoring loops 6 and 7 and on opposite sides of the abutted edges of the fabric. Connecting and anchoring the needle loops beneath the fab ric is a looper thread 16. This looper thread is formed into a loop 17, which first passes through the needle loop 15 and then through the needle loop 14, and the loop 17 is spread so that both of the next pairs of needle loops 14: and 15 pass through this looper thread loop 17. This not only looks the looper thread loop,but carries one strand of the looper thread loop again across the meeting On the upper 15 are connected by a cross thread 18 which passes about each needle loop. From the drawings, it will be apparent that the needle threads 12 and 13 pass over the cross thread 11 of the former stitches and bind this cross thread against the upper face of the fabric. On the underface of the fabric the looper thread 16 also extends across the strands of the looper thread locking the anchoring loops of the first made stitches and binds these closely against the underface of the fabric. The strands of the looper thread passing across the abut-ted edges beneath the fabric and the cross thread 18 joining the tying down loops above the fabric aid in covering the free ends of the threads making up the fabric as well as joining the abutted edges of the fabric.

From the above description, it will be apparent that the opposed loops .of the covering seam are located in a line substantially mates 0! this patent-may be obtained tor midway between lines joining the opposed loops of the retaining seam and extending in a direction at right angles to the abutted edges. This placing of the needle loops of the covering seam relative to the needle loops of the retaining seam, staggers the strain of the respective seams in a direction at right angles to the meeting edges, and

' also facilitates the covering of the retaining seam cross threads by the covering seam.

!From the above description, it will be ap parent that I have provided a duplex flat seam for uniting the meeting edges of fabric sections, wherein there are needle loops passing through the fabric well backfrom the meeting edges and cross threads for uniting and anchoring said loops which form with said needle loops a retaining seam for said meeting edges, and wherein there are also needle loops passing through the fabric adjacent the meeting edges and on opposite sides thereof, which needle loops are joined by a cross thread and a looper thread, thus forming a second or covering seam which covers the loose ends of the edges of the fabric and which tie down the cross threads of the retaining seam.

It is obvious that minor changes may be made in the arrangement of the threads and the location of the loops without departing from the spirit of the invention as set forth in the appended claim.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:

A duplex seam for sewed articles comprising two fabric sections, a retaining seam for joining the abutted edges of said fabric sections, said retaining seam includlng spaced pairs of opposed needle loops, .a looper cross thread joining and anchoring said pairs of opposed needle loops on one face of the fabric, a cross thread joining the opposed pairs of needle loops on the other face of the fabric, and a covering seam disposed within the borders of the retaining seam and including spaced pairs of opposed needle loops located on opposite sides of said meeting edges, a looper cross'thread joining and anchoring said opposed needle loops on one face of the fabric, and a cross thread for connecting and joining the needle loops of the covering seam on the other face of the fabric.

In testimony whereof, I afiix my signature in the presence of two witnesses.

JOSEPH BERGER, Jn.

Fitnesses HAROLD A. \FLYNN, J. A. BAEODLE.

five cents each. by addressing the Commissioner of Paw s;

Washington, 11.9.

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