US80090A - George rehfuss - Google Patents

Description

G. REHFUSS.

Hemmer for Sewing Machines.

No. 80,090. y l Patented'luly 21,` 1868.

i @uitrit tates gsttmt ffies.

GEORGE REHFUSS, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO AMERICAN BUTTON- HOLE OVERSEAMING AND SEWING-MACHINE COMPANY. i y

Leiters Patent No. 80,090, elated July 21, 1868.

IMPROVEMENI IN HEMMER FOR SEWING-MACHINES.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, GEORGE REnrUss, of Philadelphia, Pennsylvania, have invented an Improvement in Hemming-Devices for Sewing-Machines; and I do hereby decla-re the following to be a full, clear, and exact description-of the same. i

My invention consists of a device, fully described hereafter, to be appliedv to a. presser-bar of a. sewingmachine, for turning over the edge of a fabric, and forming the same into a. hem, before it reaches the needle.

In order to enable others skilled in the art to make and use my invention, I will now proceed to describe its construction and operation, reference being had to the accompanying drawing, which forms a part of this specifica-tion, and in which- Figure 1 is a plan view of my improved hemming-device for scwingmachines.

Figure 2, an inverted plan view.

Figure 3 a perspective view of the device, inverted, and

Figure 4 a side view.

A is a metal plate, which is bent as shown in the drawing, and is slotted at one end, to receive a screw, by which it is secured to the presser-bar of a sewing-machine, in place ofthe usual presser-foot.

At one edge of the plate is a recess', a, for the passage of the needle of the machine, and this edge, ata point adjacent to the said recess, is ent away, so as to leave aprojeetion, c, and a thin lip, e, the outer odge, y, ofthe latter being curved, and the end :c of the lip being a short distance from and parallel to one edge of the projection c, which is inclined,'as shown in tig, 3 of the drawing.

The under side of the plate, near its outer end, is out away, so as to form a recess, t, the edge y' of the recessed-portion ofthe plate being curved or inclined, to rnee't, or nearly meet, tleedge y of the lip e, but being a short distance above the latter, so as to form a shoulder, g, at the point ofjunction, as shown in iig. 4.

To the under side ofthe plate, at its outer end, is secured one end of a spring, d, which extends from beneath the end of the plate A, across and below the edge y', over the lip e, to the projection c, against the inclinedside of which theouter end of the spring bears. It is, however, free from contact with the said plate A, except at the point where it is connected to the saine, and at its outer end, (13g. 4.) i t The fabric to be hommed is turned over at one edge to form a. fold of the desired width `and is passed between the spring d and the` plate A, so that the folded portion may lie againstthe under sideV o`f the said spring, as shown in iig. 3. l, i

As the fabric (shown by red lines, fig. 2) is carried by the movement of the feeding-mechanism in the direction of its arrow, its edge will pass first between the spring d and the under -side of the plate A, then against the` shoulder q, by which it is turned slightly downward, and then against the, inclined edge y of the lip e, by which it is turned completely over, and thence, beneath the under side of the sp'rin'g d, after which, it passes between the projection c andthe work-plate, and then beneath the recess a, when the heur is subjected to the action ofthe needle and thread.

Without confining myself to any precise lform of the plate A, I claim, as my invention, and desire to secure by Letters Patent- I 4 The within-described hemming-device, consisting of the plate A and the spring cl, constructed as shown,

and arranged and operating substantially as and for the purpose herein set forth. 1

In testimony whereof, Ihave signed my name to this speciiication in the presence of two subscribing witnesses.

GEO. REHFUSS.

Witnesses:

CHARLES E. Fosrnn W. J. R. DELANY.

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