US1852482A - Presser foot - Google Patents

Description

April 1932- H. L. SEAVERS ET AL 1,352,432

PRESSER FOOT Filed Oct. 21, 1930 2 Sheets-Sheet 1 H.L.Seavens and B dfisrnsfiez'n m l 1932- H. L. SEAVERS ET AL 1,852,482

PRESSER FOOT Filed Got. 21, 1930 2 Sheets-Sheet 2 Patented Apr. 5, 1932 UNITED STATES PATENT OFFICE HAROLD L. SEAVEBS AND PHILLIP G. BERNSTEIN, F YORK, PENNSYLVANIA PRESSER FOOT Application filed October 21, 1930. Serial No. 490,305.

This invention aims to provide a presser foot for a sewing machine, so constructed that a line of stitching may be made in accurate,

parallel relation to the edge of the material,

or to the edge of a seam, the device being capable of-being used on sewing machines of many kinds, and under many conditions which call foran accurately formed, straight edge on the material, disposed in parallel rela- 19 tion to a line of stitching. The invention aims, moreover, to provide a device of the class described which can be used in the ordinary way on a flat surface when there is no occasion for locating the line of stitching accurately in parallel relation to an edge in the material. lt is within the province of the disclosure to improve generally and to enhance the utility of devices of that type to which the invention appertains.

With the above and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention.

ln the accompanying drawings;

Figure 1 shows in top plan, a device constructed in accordancewith the invention, a part of the sewing machine proper appearing in section;

Figure 2 is an elevation;

Figure 3 is a bottom plan;

Figure 4 is a section on the line 44 of Fig. 2; Figure 5 is a view like Figure 4:, but showing the auxiliary presser foot raised, as occurs in sewing-011a flat surface, Figure 4 illustrating the position of the auxiliary presser foot when sewing along an edge;

Figure 6 is a section on the line 6-6 of Figure 2, the parts being arranged as they will appear when the device is used to sewalong an edge; I

Figure 7 is a view like Figure 6, but'illustrating the parts as they will appear when sewing on a flat surface;

Figure 8 is a rear elevation;

Figure 9 is a rear elevation wherein the silde and attendant parts have been separated from the sewing machine;

Figure 10 is a perspective View of the slide and the parts which are attached to it;

Figure 11 is a perspective view of the retainer or angle bracket;

Figure 12 is a perspective view of the main presser foot and the part whereon it is mounted.

The numeral 1 marks a support, which may be the upright bar of the sewing machine. Figure 12 shows that the bar 1 has a longitudinal groove 2 in one side, this groove form- 65 ing a rib 30 and a rib 38 which areparallel to each other, the ribs 30 and 38 being of approximately the same Width from front to back, as disclosed in Figure 1.

At its lower end, the bar 1 has a laterally and downwardly projecting ofi'set 3 (Figures 12 and 2) provided with ears 4 between which extends an upstanding flange 5 on a main presser foot 6. The main presser foot 6 has a needle hole 7 (Figures 1 and 2) in its inner edge. The outer end of the presser foot 6 is turned upwardly, as usual, and as denoted by the numeral 8. A pivot element 9 is mounted in the ears 4 of the offset 3 of the bar 1 and extends through the flange 5 of the main presser foot 6, the main presser foot having a slight up and down swinging movement on the pivot element 9, this-movement being limited, however, because, as shown in Figure 12, the heel 10 of thepresser foot 6 extends backwardly underneath the oflset 3.

A slide 11, shown in detail in Figure 10 of the drawings is mounted for vertical reciprocation on the bar 1. The slide 11 has a longitudinal rib 12 which moves in the groove 2 of the bar 1. The rib 12 is located at one corner of the slide 11;, as Figure 10 will show, and in the opposite corner of the slide 11 there is a groove 37 which receives the rib 30 of the bar 1, as shown in Figure 1, the groove 37 defining a wing 31 in the slide, the wing 31 overlapping the outer surface of the rib 30. Figures 2 and 1 0 disclose that the slide 11 has an outwardly projecting finger 14 supplied in its upper edge with a seat 15.

On the lower end of the slide 11 there is an offset 16 which, like the offset 3 of the bar 1, projects laterally and downwardly, the offset 16 being disposed at the side of the offset 3, as shown in Figure 1; The offset 16 has ears 17 betweenwhich extends an upstandingflange 18 on an auxiliary presser foot 19 (Figure 10.) located at the side of the main presser foot 6, (Figure 6), the auxiliary presser foot 19 having a rounded end 20 so that the work can pass under the auxiliary presser foot readily. A' pivot element 21 is mounted in the ears 17, and in the flange 18 of the auxiliary presser foot 19. The auxiliary presser foot 19 has a slight up and down swinging movement on the pivot element 21, but this move ment is limited because, as shown in Figure 2,the heel 40- of the auxiliary presser. foot ex- 20' tends beneath the oflset 16 on the slide 11,

this being shown also, in Figure 10 of the drawings.

A guide block and spacer 22 (Figures 1 and 8) is disposed against the outer surface 23 (Figure 12) of the rib 38 on the bar 1, and the slide 11 reciprocates in engagement with the guide block and spacer as is shown in Figure 1. The guide block and spacer 22 is an extremely useful article or part of the device, since it enables the auxiliary pressure foot 19 and parts which carry it, to be used on machines of many different makes. A portion of the rear edge 24 (Figure 1) of the slide 11 engages the inner surface of the guide block and spacer 22.

In Figure 11 there is shown a retainer or angle bracket 25 that appears, also, in many other figures of the drawings, for instance, in Figures 1:and 2. The retainer 01 angle bracket 25 comprises a first flange 26 and a second flange 27 disposed at right angles to each other. The flange 27 extends along the the ange outer surface of the slide 11 and alon outer surface of the spacer 22. The

. 26 extends along the inner longitudinal surface of the bar 1. The part 25 is called a retainer, because it holds the slide 11 on the bar 1 for reciprocatory up and down movement. The retainer 25 is held on the bar 1 by securing elements 28 which pass through the flange 26 of the retainer and enter the The guide block and spacer 22 is held between the rib 38 of the bar 1 and the flange 27 .of the retainer 25 (Figure 1) by two securing elements 29 and 32 that go through the flange 27 and through the guide block and spacer, the said securing elements entering curing element 29.

thebar 1. The securing elements 32, 29 and 28 preferably are screws.

In addition to their functions as retainers for the guide block and spacer 22, the securing elements 29 and 32 have another function, in that a spring 33 is engaged around the se- The spring 33 has a downwardly extended arm 34 (Figure 2) which bears against the securin element 32 and is held against the flange 2 by the end of the securin element 32. The spring 33 has an inwar ly extended arm 35 which is received in the seat 15 (Figure 10) of the finger 14 on the slide. 12, the finger 14 proper rear corner 41 (Figure 2) -of the offset 16 v on the slide 11, as the slide moves upwardly against the action of the arm 35 of spring 33. The arm 35 of the spring 33, acting on the finger 14 of the slide 11, tends to car the slide and the auxiliary presser foot 19 ownwardly, so that the lower surface of the auxiliary presser foot is a little below the lower surface of the main presser foot 6, as shown in Figures 2, 4 and 6.

The numeral 42 marks a piece of material,

presenting an edge 43. This edge 43 isirun along the inner surface of the presser foot 19,.

as shownin Figures 6 and 4, and it will be obvious that a sewing machine needle (not shown) working through the needle hole 7 of Figures 3, 2 and 1 will cause a line of stitching to be made in the material 42, in parallel -relation to the edge 43, the edge 43 being turnedout smooth and even. The bar 1 can be carried down in the usual way, 'so that the lower surfaces of the presser feet 6 and 19 will be in the same plane (Figures 7 and 5) and, then, the machine may be used in the ordinary way on a flat piece of material 44.

Having thus described the invention, what is claimed is:

The combination with a member of a sewing machine, carrying a main presser foot, of a slide mounted to reci rocate on said member and provided wit pre ser .foot cooperating with the main 7 presser foot, the slide'outstanding with rean auxiliary spect to said member, a retainer on said memher and holding the slide on said member for reciprocation, spring means for depressingthe slide to cause' the auxiliary presserfoot to extend below the main presser foot and present a guiding ed e, a combined spacer and guid for the sli e, removably disposed between the retainer and said member, and

a holding device keeping the spacer and guide in place and passing through the retalner,

- the spring means being mounted on the holddevice.

Tn testimony that we claim the foregoing as our own, we have hereto aflixed our s gmatures. I

HAROLD L. SEAVERS. PHILLIP G. BERNSTEIN.

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