US68828A - Improvement in mechanism for sewing oval seams - Google Patents

Description

A. JUDSON.

Mechanism for Sewing Oval Seams. N0. 68,828. Patented Sept. 10,1 67;

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' UNITED STATES i mmuhtlb AGUR JUDSON, OF NEWARK, new JEnsnY.

IMPROVEMENT lN MECHANISM FOR SEWING OVAL SEAMS.

Specification forming part of Letters Patent No. 68,828; dated September 10, 1867.

To all whom it may concern.-

Be it known that I, AGUR Jonson, of the city of Newark, in the county of Essex and State of New Jersey, have invented certain Improvements in Attachments for Sewing- Machines for Sewing Oval Scams; and I do hereby declare the following to be a full and exact description of the same, reference being had to the drawings accompanying this specification and making part of the same.

The object of my invention is, by the aid of certain attachments to be used in'connection with a sewing-machine, to cause the'fabric or material to be stitched in oval, elliptic, or similar forms, which maybe readily varied at will, both in size and proportions; and also, in connection therewith, the ready shifting and presenting ofthe material to cutters to be cut into the desired oval form.

While the devices may be used whenever-it may be desirable to ornament or to stitch together fabrics in an oval form, they are peculiarly applicable in the stitching of the tips of the linings of hats, in the uniting together by stitching of such tips with the side linings, and in the cutting of such tips in the desired oval form and size from the piece or sheet of fabric.

To accomplish the above-stated objects, my invention consists in the use of a pivoted frame,-supporting novel adjustable devices for carrying and operating an oval plate in novel means for affixing the fabric to this plate; in means for graduating and indicating the sizes of the oval or ellipse to be stitchedand also in means for changing its relative diameters; in the application to a sewing-machine of revolving cutters, which shall also serve to feed to themselves the material to be cut, and in combining with the same the devices for describing the proper oval.

The form in which I have embodied my invention 1 will now proceed to describe.

I have illustrated it as applied to a sewingmachine of the general structure known as the Willcox & Gibbs machine, a portion of the work-plate being cut away to receive properly the revolvingplate, which guides and sustains the cloth, and permits it to be revolved; but it is evident that it may be applied equally well to most of, if not all, the varieties of ma-v chines in use.

In the drawings, Figure 1 represent-s a sewing machine with my improved mechanism for guiding the" cloth for oval seams, and also with the cutters in their proper positions for operation. Fig. 2 represents a side View, and also a top view, of the oval-moving holder. Figs. 3, 3 3 represent the parts which produce the oval movement; and Figs. 4, 4 4 the parts of the device for holding the silk or other fabric to be sewed and cut. r

The same letters refer to the same parts in each figure. g

A denotes the bed-piece of the holder, which is attachedto a sewing-machine table by, and

vibrates when desired upon, the screw-bolt 2.- Either a slot is cut in the table of the sewingmachine, or a plate, y, is inserted in the same,

this plate havingalongitudinal slot, to, through which a screw on the end of a bolt, 2, passes to nut beneath, for the purpose of adjusting the distance from the needle and thecutters, as the work may require. A scale upon the side of A indicates this distance. Upon the top of A is a sliding plate, n, which is held in the required position by the screw to, when the plate is adjusted to the sized oval required, this latter being indicated by the scale t. Upon the end of A is a circular piece of metal, .5, in which is a slot from near itsxedge to a short distance past its center. This disk is screwed to the top of A, the slide '0 passing beneath it. It is shown in Fig. 3 by dotted lines upon the under-side view of the oval plate B. Athin flat plate, '1", is provided, with its two parallel edges turned down at right angles to" the plate,'and fitting snugly over the edge of the disk, but yet at libertyto turn In this plate is a and slide upon the same. slot, q, through which, as well as through a slot in the disk 8, passes the screw 10 into the threaded hole in the end of the slide o under the disk 8. It will be seen that, as the screw 10 is the guide of the movements of the plate 1" as it is turned upon the disk .9, a line more or less oval will be described by the plate, as p is placed nearer to or farther from the center of the disk s, which is done at pleasure by adjusting the slide '0. Thus the size of the oval is determined by the position of the screw 2, and the shape of the oval is regulated by the position of the screw 1;. The plate 1' is firmly, but removably, attached to the under side of the thin metal oval plate B, and the screw 19, passing through the plate and the disk into the slide- 'v, confines the plate to the top of the bed-piece A, leaving it to move freely on the top around the disk 8. The character of the movements of plate B must, therefore, coincide with those of plate 1". Plate B and its top piece D, hereinafter mentioned, should be made as light as possible consistent with the requisite degree of strength, in order to offer as little resistance as possible to the pull of the feeding device upon the fabric. Four sockets, more or less, 0, are formed in this plate B, which are filled with cork or other suitable substance, even with the upper side of B, the sockets being closed at thelower and open at their upper ends. In the center of the plate B, upon its upper side, is fixed a sharp point or pin, n. D is a top piece, which, for the sake of lightness, is preferably made of wood. This piece is shown in Fig. 1 in its proper position in the machine, and is also shown in Figs. 4, 4 and 4 It consists of a cross-piece, 1, and a thin disk, is, the cross-piece being intended as a strengthener-bar for the disk, and also to serve the purpose of a handle. In the under side of the disk 7r,needle-points projectdownward. In sewing an oval seam, the material or fabric is put upon the point at on the upper side of B, as nearly central as ail-expert can do it on the instant, The top piece D is then put upon the fabric to be stitched, its points passing through the same into the cork in the cups or sockets 0, thus insuring the turning of the plate B, and with it the plate a", about and upon the disk 8, to produce their oval path of travel, as the feed-motion of the sewing-machine carries the material along. E represents a pair of circular shears or cutters, supported upon a suitable frame secured to the table or platform of the sewing machine. These cutters are to be operatedat the proper period by means of the crank i and bevelgears h h h. The position of the cutting-edges of these cutters is adjusted nearly to the same radial distance from the screw-bolt 2, upon which the bed-piece A turns, as is the point of the needle, so that when the piece of goods needing to cut into an oval form is put upon B, and the bed-piece A is moved about upon a line extendingfrom z to the cuttingpoint of the cutters, the turning of the crank i by the hand of the operator causes the shears to draw and cut the silk or other material, the oval-describing devices acting the same as in the case of the stitching, to insure the cutting in the oval form desired. The bed-piece A is then brought back to the stop, and if the article is a hat-tip, the side lining f is held by the operator, or passed through any ordinary guide, and sewed to the tip by the machine.

I claim as my improvement 1. In oval-seamin g attachment for sewingmachines, the combination, with devices for stitching oval or elliptic forms, of an apparatus for cutting the material into similar forms.

2. The frame or bed piece A, with its adjustable devices for describing ovals or ellipses, when so applied to a sewing-machine table that it may present the fabric either to the needle or to the cutters.

3. The revolving plate 4, constructed and operating substantially as described.

4. The radially-slotted disk 8, applied and operating as and for the purpose set forth.

5. The combination of plate 7' and slotted disk 8, for joint action, substantially as set forth.

6. The combination of the adjustable slide 02 with the disk 8, as and for the purpose set forth.

7. The plate B, provided with sockets for the reception of cork or other substance, as and for the purpose set forth.

8. The combination of plate B, constructed as described, with the top plate or piece D, as and for the purpose set forth.

9. The combination, with frameA, of a scale for indicating the size of the oval to be described.

10. The combination, with such frame, of a scale for indicating the change in the form of the oval to be described.

AGUB JUDSON.

Witnesses:

W. M. GOODING,

A. HICKINBOTTOM.

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