US579052A

US579052A - Sewing-machine hemmer

Info

Publication number: US579052A
Authority: US
Publication date: 1897-03-16
Anticipated expiration: 1914-03-16

Description

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No. 579,052. Patented Mar. 16, 1897.

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M. R.,K. FOWLKBS 80 M. E. J. BENNETT.

SEWING MACHINE HEMMER.

No. 579,052. Patented Mar. 16, 1897.

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ATENT MARY R. K. FOWLKES AND MARY E. J. BENNETT, OF SELMA, ALABAMA.

SEWING MACHlNE HEMMER.

SPECIFICATION forming part of Letters Patent No. 579,052, dated March 16, 1897. A lication filed October 15, 1896. Serial No, 608,929. (No model.)

To all whom it may concern.-

Be it known that we, MARY R. K. FOWLKES and MARY E. J. BENNETT, of Selma, in the county of Dallas and State of Alabama, have invented a new and useful Improvement in Sewing-Machine Hemmers, of which the following is a specification.

Our invention is in the nature of an improved henimer for sewing-machines design ed to produce hems of any width from one-fourth of an inch to eight inches and which may be applied with very slight changes either to the lock-stitch or chain-stitch machines.

It consists in the peculiar construction and arrangement of the various parts of the attachm ent, as hereinafterdescribed, and point ed out in the claims.

Figure 1 is a plan view of the entire attachment as arranged for a lock-stitch machine. Fig. 2 is a similar view showing the work in place. Fig. 3 is a section on line 3 3 of Fig. 2. Fig. 4: is a detached view of a part of the hemmer used when the attachment is applied to a chain-stitch machine. Fig. 5 is a plan showing such device applied to the other parts, and Fig; 6 is a section on line 6 6 of Fig. 5.

In the drawings, A represents the base'plate of the attachment, which is provided along its front edge with a long slot a a graduated scale a parallel to said slot, and behind this three shorter parallel slots a a a which latter are designed to receive set-screws that fasten the hemmer to the table of the machine in a detachable manner.

a B is the gage'bar. This is a long bar having a longitudinal slot 6 in it extending nearly its full length and having at one end a broad foot Z), that fits in the fold at the bottom of the hem. This bar lies between the body of the fabric and the turned-over part of the hem, as shown in Figs. 2 and 3.

C is the hem-turner. This is another long bar having a longitudinal slot extending nearly its full length and provided on its inner end, or end next to the needle, with the curled-over part c, which turns downwardly and under and over again at c to form the folder for turning under the marginal edge of the hem preparatory to stitching it down.

Rigidly attached to and forming a prolon ga tion of the hem-turner from its lower side is an extension 0 having a slot 0 parallel and in alinement with slot 0 of this part. This slot receives a short bolt E, which also passes through the slot 1) of the gage-bar, which lies beneath this extension, and on the under side of this extension is provided with a broad head or washer e, while a nut e on the bolt above the extension clamps the said exten sion and gage-bar rigidly together and holds them firmly, but adjustably, in relation to each other, the gage-bar being supported entirely upon the extension 0 of the hem-turner. The henrturner itself is supported at a little distance above the plate A by a cross-bar D and a bolt cl. This bolt passes through the slot 0 of the hem-turner, then through a per foration in the cross-bar D, and then through the slot o of the base-plate A. The head of this bolt plays in undercut ways in the lower edges of the slot a and a nut cl, lying above the hem-turner and engaging with the screwthread of the bolt d, serves to clamp the hem turner O, the cross-bar D, and the lower plate A rigidly together at any desired adjustment. The cross-bar D forms a guide for the extreme edge of the hem, and its connection permits it to be moved with the hem-turner 0 along the slot in the subjacent plate A to any desired point, while the same connection allows the hem-turner by reason of its slot 0 to be moved over the cross-bar to give any desired width of hem, only limited by the length of the gage-bar and hen1turner.

When the device is to beapplied to chainstitch machines, the hem-turner O is not used, but a small hem-turner C, Fig. 4, is slipped into guideways a a, Fig. 5, in a rectangular opening in plate A just in front of the needle. The other parts of the hemmer are arranged as shown in Figs. 5 and 6 when applied to such chain-stitch machines, and a second hook-shaped folder G is secured upon the clampbolt E between the head of the said bolt and the gage-bar. This is to give an addi tional turn to the upper fold of the hem. It is only used when the hemmer is set for the chain-stitch machines, being unnecessary for the lock-stitch machines when the fold is turned up, as the operator can then see and guide the work herself.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. A sewing-machine hemmer consisting of a long and longitudinally-slotted bar 0 having a hem-turner c c on its end next to the needle and a slotted extension 0 attached to the lower side of the hem-turner, a long and longitudinally-slotted gage-bar B With guidefoot at its end, a clan1p-bolt detachably connecting the gage-bar to the under side of the slotted extension, and a crossbar D, and clamp-bolt for adjustably fastening the hemturner bar to its subjacent support substantially as and for the purpose described.

2. A sewing-machine hemmer comprising a base-plate A with longitudinal front slot a and parallel graduations a in combination with the longitudinally-slotted gage-bar B With foot I), the cross-bar D with clamp-bolt secured in the slot a of the base-plate, and a separate hem-turner substantially as and for the purpose described.

3. A sewin gmachine hemmer comprising a long and longitudinally-slotted bar 0 having a hem-turner c c on its end next to the needle, and a slotted extension 0 attached to the MARY R. K. FOWLKES. MARY E. J. BENNETT.

\Vitnesses:

HAMILTON S. BOYKIN, HERMAN ELIASHEM.