US829679A - Presser-foot for sewing-machines. - Google Patents

Description

, PATENTED AUG. 28, 1906.-

-J. A. STOLTZMAN. PRESSER FOOT FOR-SEWING MACHINES.

APPLIOATION FILED FEB. 9. 1903.

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Specification cf'ietteis :P-atent.

' Patented Aug i 28, 1906 I .Applieationfiled February 9, 190d. Serial No..142.632.

To all whom it may concern.-

Be it known that I ,.J ENNIEA. STOLTZMAN,

a citizen of the United States, and .a resident of No. 1412Girard street, in thecity ofLos. i ngeles, in the county of Los Angeles and.

1 State of Califorma,-.have invented a Presser- Foot for Sewing-Machines, ofwliich-the fol lowing is a specification.

The obj eet of my invention is torprovide a,

presser-foot which while performing the usual function of pressing the fabrics to be sewed against the table and feed-plate of a sewingmachine also by reason of its new construction afiords the advantage of allowing the operator to see the stitches which have been previously formed, thus affording better guidance in the sewing of the additional stitches. I attain the result above referred to by providing the presser-foot with a plurality of slots, one of which is traversed by the needle, while the other or others are solely for enabling the fabric or material and the stitches therein to be more fully seen. Three slots are preferred in my improved presserfoot, the center one being for the passage of the needle, with a slot on each side thereof. Moreover, all these slots are extended back, preferably as far as the heel or shank of the presserfoot. The single slot of the presserfoot at present in general use terminates directly back of the needle, so that the stitches last made are hidden from view, and for this reason when the thread breaks it is difiicult to start the new stitches in correct position and alinement. By extending back this needle-slot the terminal stitches are exposed to view for guidance, and the new stitches may be placed with absolute correctness. The slots in each side enable previously-formed lines of stitches,-seams, selvages, &c., to be seen, and thus assist in the correct positioning and alinement of the new stitches.

In the accompanying drawings, Figure 1 is a plan of my improved presser-foot. Fig. 2 1s a side elevation of the same in position on the presser-bar, showing also the needle and port-ion of the needle-bar. Fig. 8 is a perspective of the presser-foot. Fig. 4 is a plan of the presser-foot with the shank in section,showing a piece of fabric on which par-' allel and angular lines of stitching are being made; and Figs.- 5 and 6 are views of the presser foot similar to Fig. 4, showing the adaptability of the device to stitching 011 each side of a scam. I

.My improved. presser-foot consists of a .shank a, with a fasteningpart :(indicated at b) for. attachment to the presser-banand a plurality of toes or prongs c, projecting from theJshanlglwith intervening parallel slots (1.

The-toes or. prongs c areshown as bentv up- .ward to enable themtoride more freely over the fabric and are chamfered, beveled, or

a rounded on their top surfaces so as to open the slots and expose the fabric and stitches beneath them. The toes or prongs are also shown as of difl erent length, but this is not material to my invention, as the toes or prongs may be of any convenient length and may all be of equal length. As indicated, the slots (1 extend clear backto the shank a, the latter being shown as bent backward from its supporting end, thereby giving a view of the stitching for the greatest possible distance. The foot is attached to the presser-bar e, as

shown in Fig. 2, by any suitable or usual means, such as that indicated at which is a tightening-nut The middle slot (Z of the presser-foot is under the needle 9, the vertical line of the latter being some distance removed from the back of the slot.

Referring now to Fig. 4, it will be seen that when a line of stitching (indicated at 71 is to be made in a piece of fabric parallel to a line of stitching 'i or at right angles to other lines of stitching h 01 previously formed such other lines of stitching i h i can be seen sufficiently through the slots (1 to enable the opcratorto guide the fabric with practically absolute ac curacy, and a square, angular, or rounded corner may therefore be correctly turned when required. Moreover, if the thread breaks or the fabric is removed and reinserted the stitching it back of the needle is in plain sight, and the fabric can be set so as to bring the new stitching into absolute conjunction and alinement therewith.

In addition to the above-described advantage another advantage of my invention .is illustrated in Figs. 5 and 6, wherein 7c 7c indicate two pieces of fabric joined together by a seam Z on each side of which a line of stitching is to be formed. The presser-foot now in general use has one wide and one narrow prong, and assuming that one of themsay the narrow onehas been used as a guide in making a line of stitches on one side of the scam the operator to use it as a guide on the other side of the seam, and thereby secure a uniform effect, must turn the fabric being sewed around under the arm of the machine and in so doing crowd and rumple the fabric if it be of any considerable width; but with my invention the prongs and slots being equidistant on each side of the center slot no reversal of the fabric is necessary, but the cloth is simply shifted so as to make the line of stitching at one side of the seam, as at m in Fig. 5, or on the other side, as at a in Fig. 6. Moreover, instead of a guiding capacity for two widths of scam, as with the present twopronged foot, I secure guides for three or more widths or distances of rows of stitching on each side, such guides being constituted by the outer edges of the inner toes or prongs and the outer and inner edges of the outer prongs or toes, any one of which may be rought into alinement with the line to be followed.

Having now described my invention, what I claim as new therein,- and desire to secure I by Letters Patent, is

A presser-foot having a flat tread portion, and a shank portion, said flat tread portion comprising a plurality of toes upturned at the outer ends and slots formed therebetween and extending throughout the entire length of the flat portion, said shank portion being inclined forwardly and upwardly relatively to the tread portion, and means for securing the foot-to the presser-bar, substantially as hereinbefore described.

In testimony whereof I have hereunto set my hand and seal in the presence of two subscribing witnesses.

JENNIE A. STOL'IZMAN. [11. s]

Witnesses:

ST. JOHN DAY, HADASSAH DAY.

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