US2288051A - Compensating double presser foot - Google Patents

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June 30, 1942. M, 1', vol-r 2,288,051

coMPENsATING DOUBLE PREssEn FooT Y Filed July 29,1939

N70/www4 W /Wa'Xf-Voyg omitted of a modication.

fatented June 30, 1942 UNITED STATES PATENT OFFICE 2,288,051 coMPENsA'rING DOUBLE PRESSER Foo' v 'Max 'L -Voigt, Reading, Pa.

Application July 29,1939, serial No. 287,316

a claims. (c1. 112-235) i An object of my invention is to provide a compensating presser foot for sewing machines.

Such a presser footcompensates or permits the use of a sewing machine to form a line of stitches in a portion of cloth of varying thickness as at a seam or edge.

A particular feature of my invention is to -provide a compensating presser foot which may be used on either right-hand or left-hand edgesv of a cloth, obviating the necessity of reversing the cloth.for running a line of stitches.

More specifically,v my invention lconsists of a sewing machine presser foot having a shank adapted to t with any one of the types of sewing machines now on the market, a yoke carriedby said shank, a pivot carried by saidyoke, a pair of presser shoes carried by said pivot for reciprocating and pivotal movement in a vertical plane, and a pair of springs interposed between said yoke and each of said presser shoesfa-nd movement away from Vsaid yoke and on opposite sides of said pivot.

a body 5 having a vertical slot 6 therein closed at its upper end 1 so as to support the presser shoe onthe pivot 4. The presser shoe is provided with a at sole 8 and with an upturned toe 9.

' which is rounded in its horizontal aspect as seen serve to oppose the pivoting movement of the presser shoe about the pivot 4.

The operation of my device will be evident from the foregoing. When it is desired to' sew a.

l2() stressing said'presser shoes to the limit of their The above are a few of the features of the in vention and others will appear as the nature of the invention is better'understood with reference to the specication and the annexed drawing, wherein:

Fig. 1 is a side elevation of my device.

Fig. 2 is a vertical cross-section on line 2-2 of Fig. 1.

' Fig. 3 is a horizontal cross-section on lines 3-3 of Fig. 1.

Fig. 4 is a `bottom plan view with the shank omitted.

Fig. 5 is a-fragmentary side elevation with parts broken away in verticalrcross-section showing the device in operation on a seam'. Fig. 6 is a bottom plan'view with Fig. 7 is a vertical cross-section of the presser shoes alone similar to Fig. 2 showing the modification of Fig. 6.

A sewing machine presser foot in accordance with my invention comprises a shank l made to section having the side walls 3, which are pierced by holes through which passes a pivot 4 which may be riveted or otherwise secured to the yoke.

Mounted on pivot 4 are the presser shoes, which are substantial duplicates and of which the shanklremains in elevated position above the other` but one will be described and which consist of 55 require.

line of' stitching into a fabric having two portions of varying thickness, such as a seam or edge,l one of the presser shoes rises on the pivot, as seen in the rear presser shoe in Fig. 5, and thus rides Vup over the thickened fabric. The springs Il then serve to flatten out the presser shoe about its pivot while, at the same time, it

presser shoe. Since both presser shoes are capable of this vertical reciprocating and lim-- ited pivotal movement, rows of stitches can be run adjacent either a right-hand or a left-hand edge of the fabric. It is thus unnecessary for the operator to turnl the cloth or' fabric being worked on around iii order to sew the opposite edges. This is particularly useful in the manufacture of garments and garment parts such as collars and cuis. A

In Figs. 6 and 7 is shown a modification of my device in which the notch I0 is omitted. In this modification the presser shoes are designated 8'.

I do not intend to be limited save as the scope of the prior art and of the attached claims may I claim:

l. A compensated double presser foot for sewing machines' comprising, a shank adapted to interft with the carrying parts of a sewing machine', a yokecarried by the end of said shank, a pivot carried by said yoke, a pair of' separate presser shoes mounted on said pivot for reciprocating and pivoting movement in a vertical plane relative toeach other and to said pivot, and springs interposed between said yoke and each of said presser shoes and yieldingly rstressing said presser shoes to the limit of their movement away from said yoke.

2. In a compensating presser foot for sewing machines and the like and having a shank forming a support therefor, a pair of separate presser shoes mounted for independent reciprocating and pivotal movement in a vertical plane relative to each other and to said shank, a pivot on which said presser shoes are carried, and a pair of springs interposed between said shank and each 10 member, and at least one spring interposed beof said presser shoes on opposite sides of said pivot and stressing said presser shoes to the limit of Atheir movement away from said shank and yieldably opposingpivotal movement thereof.

3. A sewing machine presser foot comprising, a supporting member,l a pair of presser shoes spaced vertically from said supporting member and each having a slot passing therethrough in a horizontal direction, said slots being elongated and having closed ends in a vertical direction, a pivot carried by said supporting member and passing through said slots and having a diameter substantially equal to the smaller dimension oi' said slots so that said presser shoes are mounted for independent reciprocating and pivotal movement relative to each other and to said supporting tween said supporting member and each oi' said presser shoes and stressing said presser shoes to the limit of their movement away from said sup- 15 porting member.

MAX T.- VOIGT.

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