US802672A - Sewing and trimming mechanism. - Google Patents

Description

No. 802,672. IA'IITTEDA DGT. 24, 1905. F. WBVER 6L K. MAIER. SEWING AND TRIMMNG MECHANISM.

APPLICATION FILED 1330.19, 1901.

,UNITE serias rrion.

ai. FRLTZVEV AND KARL MAIER, UF STUTTGART, GERMANY. U

y i `servirle.atii-irainurewe wiecriawism.

Nol.,Q2,.-6`7,2. i y Specification of Letters Patent. Patented Oct. 24, 1905.4 Y

I ,U.' I Application filed December 19,1901. Serial No. 86.531.

To all whom t may concern.

Be it known that we, FRITZ Waver.' and KARL MAIER, citizens of the German Empire, residing at Stuttgart, -in the Kingdom of Wrtemberg, Germany, have invented certain new and useful Improvements in Sewing and Trimming Mechanism,of which the follow ing is a description, reference being had to the accompanying drawings and to the letters of reference marked thereon.

The present invention relates to an improve ment in sewing-machines, and particularly to attachments for sewing-machines whose stitchforming mechanism comprises devices for depositing a plurality of rows of loops upon opposite sides of a central line of feed, with cross-stitch devices therefor; and the invention has for its object to provide such machines with a mechanism whereby open or filigree work may be produced upon a fabric sewed upon such a machine without the cloth being freed from the presser-foot before the cross-stitch is sewed.

The present invention consists, in combination with stitch-forming mechanism, of a reciprocating cutter arranged in advance thereof which cuts the cloth and a device provided with oppositely-turned folding-recesses at its rear end adjacent the needles and arranged to fold and guide the edges of the opening made by the cutter into position within the space between the needles. whereby the stitch-form ing mechanism will bind the raw upturned edges of the fabric and make the ornamental stitching or open-work shown in the drawings.

The invention further consists in various matters hereinafter described and referred to in the appended claim.

The invention is illustrated in the accompanying drawings, in which-'- Figure l is a perspective view of a portion of a machine provided with our invention. Fig. 2 is a side View, partly in section. Fig. 3 is a plan on the line A A. o f Fig. 2. Fig. 4 is a front view of Fig. 2. Fig. 5 is a side view showing one side of the cloth-guide cut away. Fig. 6 is a section on line B Bof Fig. 2, illustrating the cloth guidingand hemming attachment in position between the arms of the presser-foot.

In the drawings, a illustrates the needlebar carrying a needle-clamp b, within which are fixed the needles. provided in front with arms a', between which Said needle-clamp is with the needle-bar, and its free extremity passes into a slot (Z in -the throat-plate A. The presser-foot B is attached to the presserbar C in the usual manner and has the usual openings for the passage of the two needles.l

It is bifurcated, as shown, to receive the attachment j", which extends beyond the forward edge of the throat-plate and is slotted to register with the slot Z in said throat-plate through this slot g in the attachment f, the knife reciprocating up and down. At its rear end this attachment f is widened and is shown as secured to the presser-foot by the screw L, and each side is vprovided with inturned wings fr?, forming recesses to fold and guide the raw edges of the fabric which has been split by the cutter. The presser-foot is cut out in rear of its slot my at Z and in front of the needle-openings to accommodate the widened portion of the attachmentf, and the folding guiding portions of said attachment f terminate at a point just in front of the needle-openings in the throat-plate, which register with the needle openings in the presser-foot, and the width of said rear portion of the attachment f is slightly less than the distance between the two outer edges of the needles, so that only the portion of the material lying between the edge of the fabric after it is severed by the knife and the needle can be folded.

In operation a piece of fabric to be provided withI the opening or filigree work is placed in the machine beneath the actionof the presser-foot, and the knife first divides the material, and then the raw edges are folded by the guiding-wings on. either side at the rear of the attachment j' and are fed to the stitch-forming` mechanism, which, as here-v in shown, makes the cross-stitch illustrated in Fig. l, the stitches securing'and binding the raw edges and making an ornamental openwork seam.

Any suitable form of cross-stitch mechanism maybe provided; but, as herein shown,`

we prefer that in the well-known union special type of twin-needle machine illustrated in Patent No. 344,493 of June 29, 1886.

Having thus described our invention, what scrolls for `the Severed fabric; Substantially we claim as new, and desire to seenreby Letas described.

ters Patent, is- I In a sewing-machine having a trimming 1 Intestimony whereof we ax our signatures mechanism including a trimmer knife, a I in presence of two witnesses. 5 presser-footghavingabifureated forward end, L FRITZ VVEVER and an enlarged transverse opening in rear thereof, a slotted plate for the passage of the KARL MAIER" trimmer-knife, and having; an enlarged rear end tting the enlarged opening in the presser- I0 foot,' seid enlarged rear end having guidingA Vlvitnesses:

VALTHR FUNAEBSCH, JULIUS HEIM.

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