US1784177A - Sewing-machine presser foot - Google Patents

Description

1930' v A. J. CARMICHAEL ET AL 1,734,177

SEWING MACHINE PRESSER FOOT Filed Oct. 6, 1927 H Pi M l L W -I 16 Patented Dec. 9, 1930 UNITED STATES,

PATENT orrlca A ANDREW J. CARMICHAEL AND OBESTE BALZANO, OFNEW HAVEN, CONNECTICUT, AS- SIGNOBS TO THE GBEIST MANUFACTURING COMPANY, A CORPORATION OF CON- NEUlICUT SEWING-MACHINE Pusan 1100i: v

Application filed October 6, 1927. Serial No. 224,871.

This invention relates to an improvement in sewing machine presser feet and has for its object to provide a presser foot of simple construction and which is mounted on its shank in such a manner as to be capable of includes a shank having an ofi'set depending portion and a foot proper having an upwardly projecting lug near its rear end, a rivet passing through said lug and said depending portion of the shank, and a spring located between the rear head of said rivet and said lug, said rivet serving as a pivot on which the presser foot may rock laterally, while the said bow-spring will yield suflicientl to permit the presser foot to tilt longitudinally.

In the accompanying drawing Fig. 1 is a plan view of the improved presser foot. Fig. 2 is a side view thereof, and Fig. 3 is a section on line 3-3, Fig. 2.

Referring to the drawing, 12 denotes a shank adapted to be attached to the presser bar of a sewing machine and having a flat ofiset depending portion 13. 14 denotes the presser foot having near its rear end a flat upwardly projecting lug 15 which abuts against the said depending portion 13 of the shank. Passing through said lug and said depending portion of the shank is a rivet 16 serving as a pivot on which the presser foot may rock laterally, the lower end of said depending portion 13 being spaced above the upper surface of the presser foot 14 a sulficient distance to permit the said presser foot to rock laterally relative to its shank. Beneath the rear head of the rivet 16, and abutting against the rear side of said In 15, is a thin plate bow-spring 17 which yieldingly holds the lug 15 in contact with the depending portion 13 of the shank in such a manner as to permit the presser foot to tilt more or less longitudinally to accommodate itself to inequalities in the work passing beneath it.

To enable the presser-foot to rock and tilt, as just described, it is not necessary that there should be any considerable looseness between the part 15 of the presser-foot and the shank of the rivet 16 on which the said part 15 is pivoted, and there need be only a very slight vertical looseness between the said part 15 and the said rivet shank to permit the presserfoot to tilt slightly or to the extent necessary to accommodiate itself to such inequalities of the work as usually occur, as the spring beneath the head of the rivet, which is spaced at a little distance from said part 15, will yield to permit the tilting movements referred to. The offset depending portion 13 of the shank 12 affords a shoulder beneath which said lug 15 is located and which shoulder serves to limit the rocking movements of the presser-foot proper.

From the foregoing it will be understood that the improved presser foot is composed of only four parts, including the rivet and plate bow-spring, so that it may be made at comparatively little cost, while affording a construction which permits of a universal movement of the presser foot relative to its shank to accommodate itself to all inequalities in the work.

Havin thus described our invention we claim and desire to secure by Letters Patent:

1. A sewin machine presser foot comprising a shank aving a flat ofl'set depending portion, the offset affording a shoulder at the top of said depending portion, a resser-foot proper having near its rear en a flat upwardly projecting lug one face of which abuts against said depending portion of said shank and the upper edge of which is beneath said shoulder, a rivet passing through said lug and said depending ortion of said shank and serving to pivota 1y connect the said presserfoot proper with said shank, and a spring located beneath the head of said rivet; whereby said presser-foot proper may rock and tilt relative to its shank to accommodate itself to inequalities of the work passing beneath it.

2. A sewing machine presser-foot comprising a shank having a flat ofiset depending portion, the offset affording a shoulder at the top of said depending portion, a resser-foot proper having near its rear en a fiat upwardly projecting lug one face of which abuts against said depending portion of said shank and the upper edge of which is beneath said shoulder, a rivet passing through said lug and said depending portion of said shank and serving to pivotally connectthe said presser-foot proper with said shank, and a plate bow-spring located beneath the head of said rivet; whereby said resser-foot proper may rock and tilt relative to its shank to accom- Inodate itself to inequalities of the work passing beneath it.

In testimony whereof we afiix our signatures.

ANDRElV J. CARMIGHAEL. ORESTE BALZANO.-

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