US96180A - Improvement in attachment for sewing-machine - Google Patents

Description

2 Sheets-Sheet I.

E. S. YENTZER..

Sewing- Machine Attachment.

[Patented Oct. 26. 1869.

2 Sheets-Sheet 2. E. S. YENTZER.

Sewing-Machine Attachment.

' Patented Oct. 26,1869;

duh-ed I ,%tates Letters Patent No. 96,180, dated October 26, 1869.

IMPROVEMENT IN ATTACHMENT roR SEWING-MACHINE.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom infancy-concern Be it known that I, ENOCH S. YENTZER, of Ottawa, in the county of La Salle, and State of Illinois, have invented a new and improved Seamer; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accom- "an in drawin s makin art of this s ecifioation in P y a a; P 1

which- Figure 1, plate 1, is a perspective view of my improved instrument, adapted for use upon the clothplate of a sewing-machine.

Figure 2, plate 1, is a top view of the instrument.

Figure 3, plate 1, is a front edge view of the instru ment.

Figure 4, plate 1, is an enlarged view of the turning-devices. Figure 5, plate '1, are views of a turning-device, differing somewhat from the turning-devic'epf figs. 1, 2, and 3. v p

Figures 6 and 7, plate 2, are views showing the I single lapped seam, with one raw edge exposed.

. pieces, 1 2,0!" cloth, united at their edges by lapping or turning a narrow portion, 7, of the edge of the piece'2 over the edge 6 of the piece 1, andthen stitch ing through the three thicknesses of cloth. In this way one raw edge is enclosed by the lapped portion.

The raw edge of the lapped portion 7 may be left exposed, as shown, or this edge may be turned under and stitched down, as will be hereinafter explained.

Previous to turning or lapping the portions 7, and after the piece 1 has been properly adjusted upon the piece 2, with the wrong sides ofthe two pieces together, they should be basted so as to-kcep them smooth, and preserve a uniformity in width of the seam.

The two pieces, 1 and 2, having been stitched to gether at 3, the top piece 1 is turnedover the lapped portion 7, as shown in figs. 8 and 9, and stitched at 4 through four thicknesses of cloth.

A seam thus produced will have both raw edges of the pieces 1 and 2 closed, and will expose two rows of stitching on theright side of the cloth, which is the bottom side in fig. 8.

If the raw edge 7 of the piece 2 is turned under and stitched, as above stated, and a row of stitching is made along the folded part, so as to stitch this part to the piece 2, a seam will be produced which will have the appearance, on the right side of the cloth, of a narrow covering-strip stitched along both edges.

The seam which I- have above described can be conveniently and rapidly produced upon the clothplate of a sewing-machine by the attachment to such plate of an instrument constructed as shown on plate 1 of the accompanying drawings.

A represents the. base-plateof the instrument, which. has a slot, a, through one portion,through which the screw passes that is used tosecure the instrument upon the cloth-plate of a sewing-machine. A long, narrow tongue or guide, a, is also formed on this plate A, which may be marked off. for indicating the widths of seams which it is desired to make.

B represents a follower, which is perforated at b, to allow the needle to play through it, and which is formed on a narrow spring portion 1), that is secured permanently to the surface of the plate A, in the position in figs. 1 andFZ'. This plate B is arranged so that the presser-foot of the sewing-machine will hold it down upon the work, and so that when-the presser-foot is raised, the plate will spring up free from the cloth.

G represents a spring-turner, which is used for turning under the raw edge of the lapped portion 7 of the strip 2, as above described;

Vhen it is not required to turn under the edge of this lapped portion 7, a simple guide, as shown in fig. 5, may be used in place of the turner.

The free end of this guide is curved under so, as to form a small lip.

The free end of the turner C is curved, as shown atc, figs. 1 and 3. I

That end of the turner which is secured to the plate A by athuInb-nut, G, andfixcd screw-thread, g, is slotted at e to allow of its adjustment for seams of different widths.

Instead of slottingthe shank of the turner O-longitudinally, as shown in figs. 1 and 2, this shank may 1 be slotted or notched transversely, as shown at c, fig. 5, to receive the screw-stud g, and perforated'at c to receive a fixed stud, g.

The latter construction is best, for the reason that it admits of the detachment of the turner from the instrument without removing the nut G.

The turning-lip c is arranged between the followerplate B and the lappingdip d. v This lapping-lip d is curved in adirection opposite. to the curve of the lip 42, and forms, in conjunction with the lip c, a slot through which theworkis. drawn on its way-beneath the needle.

The lip dis formed on an adjustable gauge-plate, D, which is slotted at d, and secured in place by the thumb-nut G..

The gauge 8' lies transversely across the narrow graduated tongue to of theplate, and is formed on'tbe narrow extension s of the plate 1), as clearly shown in the drawings.

v ()n that edge ,of the ,plate D which is next the turner G, and protruding transversely from the curved shoulder of the lapping-lip is a narrowguide, t, which extends across the tongue a, and beneath the follower-plate B.

This guidet keeps the lapped portion of r the cloth in its proper place with respect to the needle at the point where the stitchesare formed.

In fig. 4, of plate 1, I have represented the instrument in the act of lapping and turning the edge of one piece, 2, of cloth over the edge ofa piece, 1, for producing a seam representing a narrow piece stitched on the cloth.

For a simple seam, such is represented in figs. 6 and 7, the turner 0, shown in figs. 1, 2, 3, and 4, is not used.

.Vhiie I prefer to employ the instrument herein described for producing the improved lapped scam, I do not confine myself to theprecise construction .of

this instrument, as the turning and lapping-device$ may be varied in their construction.

The gauge s, lying across the graduated tongue a, serves as a convenient means for indicating the width of space between the turning-lips or books, so that the instrument can be quickly and accurately set for a seam of any given width.

What I claim as new,-and desire to secure by Letters Patent, is-- 1'. An instrument for producing the seam herein described, consisting of parts A, a B, D, .d, and s, constructed so as to operate substantially as set forth.

2. The adjustable lapping-hook d and turner or guide 0, combined with a gauge, 3', substantially as described.

3. The lapping-hook d, the turner or guide 0, the guide t, and the follower-plate B, constructed and combined substantially asdescribed.

ENOGH S. YENTZER.

Witnesses:

J N0. N. Snnnnn, HENRY A. SHULER.

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