US1768025A - Method of producing sewed articles - Google Patents

Description

June 24, 1930.

Filed Nov. 9. 1926 akbo'z net's I Patent'edtl une 24, 1930 i f {UNITED ST T S PATENT oF FicE JOSEPH BERGER, OF UTICA, NEW YORK, ASSIGNOB TO UNION SPECIAL MACHINE COMPANY, OF CHICAGO, ILLINOIS, A. CORPORATION OF ILLINOIS METHOD or PRODUCING snwnn ARTICLES Application filed November 9, 1926. Serial No. 147,264;

The invention relates to new and useful improvements in a method of producing sewed articles. It is a common expedient to join the edges of fabric sections and to 6 turn said joined edges against one of the fabric sections and secure the .same thereto.

' by stitching thus producing a flat seam.

An object of the resent invention is to provide a-method o producing a seam of the above type wherein the edge portions are united and secured against one 'of the fabric sections by 'asingle passage of the fabric sections through a machine.

.A further object of the invention is to provide a method of the abovecharacter.

wherein the stitches which secure the joined edge portions to the fabric sections'pass into and out of the fabric sections so that they are substantially concealed fromv view on the face side of the fabric sections.

These and other objects will in part be obvious and will in part be hereinaftermore 'fully disclosed. p e

In the drawings which show by way of illustration one embodiment of the seam and the steps of the method of making the same.

Figure '1 is a perspective viewshowing the manner of placing. and uniting the fabric sections;

Fig. 2fis a view of, the finished scam in perspective;

Fig.3 is a sectional viewon the line of F g. 1;

Fig. 4 is a sectional view .on the line B of-Fig. 1; j

Fig. 5. is a sectional view on the line C of Fig. '1, and

I Fig. 6 is a sectional view. on the line-D 40 ofFig.2.

The invention is. directed broadlyto a method of producing a seam for sewed articles, which consists of two. or more fabric sections which may be of knit material,

" and wherein the edge portions to be united may be nonselv'edge. The seam includes stitches for uniting said sections having thread loops passing through said sections, placed face to face, back from the edges thereof. The fabric sections inside of said loops are disposed in substantiallyithe same plane and project away from said connect ing loops, while the fabric sections outside of said-loops, are folded or'bent downon to one ofthe fabric sections and are secured thereagainst by stitches having thread loops passing through the fabric sections adjacent the edges thereof, and into "and out of the fabric section against which said edge portions are folded on the'same face of said fabric section. This makes a very flat seam, and yet, a seam whichis strong. and. durable, and also a seam wherein the threads joining' the sections are substantially concealed from view on the face side of the. fabric sections or article being produced. The new method of producing this. seam consists. inls'uperposing'the fabric sections and joining the same by stitches-including thread loops which pass through the superposed fabric sectionsback from the edges thereof. One of the fabric sections inslde of'said thread loops is bent so as to form a fold therein. This fold is sopositioned that the fabric section between the fold and the thread loops lies in the same plane as the other fabric section, but'projects in .the opposite direction from said thread loops.- The superposed portions of the fabric sections outside of the thread loops are laid against this folded portion inthe fabric section, and stitches are passed through the superposed portions ofthe fabric sections adjacent the edges thereof, and through the folded portion in the fabricsectio-n, so that said superposed portions of the fabric secs tions'outsid'e-of the thread loops aresecured against the face of one'of the fabric sections; The fabric section which is folded is the scam.

the method is carried out other fabric section.

detail to the drawings, as follows. Two superposed fabric sections 1 and 2 are first presented to trimming devices consisting of trimming blades 3 and i, so thatthe edge portions are trimmed. This is very desirable where knitted fabrics are being joined to form a seam. If fabrics with selvedge Referring more in portions are united, then, 'of-course, the trimming step would be omitted. One'of the fabric sections, the under one 2in the present illustrated embodiment of the invention, is bent as indicated at 5, awayfrom the The two superposed fabrics'are then united by stitches, which, in the present illustrated embodiment of the invention, are overedge stitches, consisting of thread loops 6'which pass through the superposed fabrics, and thread loops '7 and 8 which are interlocked with each other and with these thread loops 6. It will be understood, of course, from certain aspects of the invention, that through and through titches alone may be used for uniting the fabric sections. The bent portion 5 of the fabric section 2 is then positioned as shown in Fig.

5, so as to form a fold 9, and the edge portions 10 and 11 of the fabric sections gutside of-the thread loops 6 are laid against the portion 12 of the fabric section 2, lying between the fold 9 and the thread loops 6. When the parts are thus positioned, the portion 12 of the fabric section 2, lies in subs stantially the same plane as the fabric section 1, but projects away from the thread.

loops -6 invthe opposite direction from the the stitches just referred fabric section 1. In this Fig. 5, the remaining portion of the fabric section 2 is parallel with the fabric section 1, and these parts are superposed. Stitches are then passed 'through the fabric sections consisting of thread loops 13 which pass through the fabric sections 10 and 11 adjacent the edges thereof, and through the fold 9 in the fabric section 2, and thread loops 14 which areinterlocked withthe thread loops 13. These are overedge thread loops for covering the raw edges of the material formed by the trimming of the fabric sections. After to'have been placed the fabric through the fabric sections, then f sections are unfolded and positioned as 5 I shown in Fig. 6. This is a completed seam,

,and it .will be noted that-the under face, as

shown in Fig. 6, which 1 the-completed seam or article, is flat and smooth, while the edge portions outside of 1th ,thread loops 6 are is the face side of I g turned down a' ainst one" of'the fabric sections and blind-stitched the seam on the opposite side i 's fsubstantially'flat and free from a project- 7 "are"'a1l concealed from the face side of the It will be noted that'the stitches strong,

sections and secured thereto.

finished seam is other, and wherein the fabric sections are united by through and through stitches well back from the edge portions so that a very durable seam is provided, even in knit material, and wherein the rojecting por,tions beyond the uniting stltches are turned down flat against one of the fabric ture of the seam consists in the placing of the thread loops so that in the finished article, practically all the thread loops areconcealed from view.

In carrying out the method above described, the fabric sections are preferably passed through a machine wherein the steps are successive steps; that'is, the fabric sections are trimmed, and before the trimming 5 in one of the fabric" takes place, the bend sections is. formed, then the unitingstitches are formed covering the edge portions of the fabric sections, after which the fabric is positioned so as to complete the fold, and then the second stitching operation takes place, which ties down to, one of the fabric sections, the projecting edge portions of the seam. This makes a seam which can be very readily made by a singlesewing machine, and in one continuous operation of the machine. i j

It is obvious that minor changes in the details of the steps in the method of making the seam may-be made without departing from the spirit of the invention as set forth I formed for positioning a folded edge substantially in line with the outer edges of the joined fabric sections and securing said joined edges to passing through and out of the fabric section said joined edges and into in some character of fab- Another feaat the fold but nevertheless, they are The principal features of I the seam consist "in the positioning of the fabric sections so that the fiat on one side, and substantially flat on the the folded edge by stitches on a line with the edges of the united sections while the edges are'being joined, and

securing said joined edges to the folded ed e y overedge stitches passing through said joined edges and into and out of the fabric section at the fold therein while said superposed edge portions are being joined.

In testimony whereof, I afiix my signature.

. JOSEPH BERGER.

placing the folded edge-

Images