US2741200A - Guide for presser foot - Google Patents

Description

April 10, 195% w. N. SMITH 2,741,200

GUIDE FOR PRESSER FOOT Filed Aug. 10, 1953 2 Sheets-Sheet l 25 Fig 3 INVENTOR.

W. N. SMITH J6 'o zl m AGENT pri 10, 1956 w. N. SMITH 2,741,200

GUIDE FOR PRESSER FOOT Filed Aug. 10, 1953 v 2 Sheets-Sheet 2 INVENTOR. W. N. SMITH m. fiwm 9,.

AGENT United States This invention relates generally to the sewing machine art and has for its primary object to provide an improved presser foot for such machines.

Another object is to provide a presser foot which is capable of guiding material through a sewing machine when sewing overlapping materials so that a predetermined dimension of overlap is easily maintained.

it is a further object of this invention to provide a guided movement when the material employed is relative ly thick.

A fur her object is to provide a hinged guide member for a presser foot whereby the accuracy of the overlap is maintained regardless of the relative dimensions of the two materials.

And yet another object of this invention is to provide a presser foot including an edge guide for special operations, and yet which foot may be used interchangeably for ordinary sewing operations without replacement of any parts.

A still further object is to provide an improved presser foot which may be easily constructed from a standard presser foot having either a single or multiple needle slot, and which improved foot may be adapted to guide overlapped materials at a wide range of overlap dimensions.

An additional advantage or" this invention is to provide a means of restraining the passage of cloth through the presser foot of a sewing machine whereby any tendency of the cloth to jump and consequently skip stitches is minimized.

These and other objects and advantages will be apparent from examination of the following specification and drawings in which:

Fig. 1 is a top plan view of the assembled presser foot of this invention.

Fig. 2 is a side elevational view of the foot shown in Fig. 1.

Fig. 3 is a retail side elevational view of the guide member of this invention.

Fig. 4 is a top plan view of the presser foot in operation.

Fig. 5 is a top plan view of a presser foot runner intended for use with multiple needles and constructed for the purpose of this invention.

Fig. 6 is a top plan view of a guide member adapted for use with the runner shown in Fig. 5.

Fig. 5 represents a plan view of a runner for use with multiple machines.

Fig. 6 is a modified guide member for the installation on the (observers) left side of the runner of Fig. 5.

Referring now more particularly to the characters of reference of this invention, the complete presser foot is seen basically to include a vertical support 2 which is hinged by means of pin 3 to a flat runner 4 which includes a cut out section 5 for reception of a guide member 6.

Runner 4 includes a conventional needle slot 7 with adjacent upturned shoes 8 and 9. Slot 7 is shown for use with a single sewing needle, some additional modification is required relative to the instant invention, Figs. 6 and 7 if intended for use with multiple needles. Cut out section 5 may be fabricated into runner 4 at the time of initial manufacture, or a standard runner may be modified to include this section. Upstanding bearing support blocks 19 and 11 on the top surface of runner 4 closely sur round the lower portion of vertical support 2 so that aligned holes 12 and 13 in each member may accommodate a pivot pin 3. A set screw 15 then engages support 2 and pin 3 to prevent the latters disengagement but at the same time permit relative rotary movement of support 2 and runner 4.

Guide member 6 includes a transverse hole 16 near its mid section and an enlarged pressing lobe 17 forward of hole 16 and a lever arm 18 having a reduced vertical dimension. The inner edge 19 of member 6 is straight and smooth to facilitate its guiding action on the material being worked. The underside of lever arm 18 includes a circular recess 26 to accommodate a compression spring 21 for a purpose hereinafter described. Hole 16 of guide member 6 aligns with holes 12 and 13 of support 2 and runner 4 when the parts are in their assembled relation, and an elongated pin 3 may be made to project through all the holes thus aligned. Runner 4 includes a recess 22 which corresponds with recess so that in combination, these recesses provide a seat for spring 21 in operational relation between runner 4 and arm 18. A lip 23 on guide member 6 is closely positioned to edge 24 of cut out section 5 so that after assembly lever arm 18 may freely move and at its extreme down position the bottom edge 25 of lobe 17 and the bottom of runner 45 are in substantial horizontal alignment.

In operation, a pocket, patch, or other cloth A is desired to be sewed on a base cloth B as shown in Fig. 4, at a consistent overlap dimension C. It is therefore desirable that stitches D be the same distance from the edge E of patch A. To accomplish this desired result, straight edge 19 near lip 23 is made to engage edge E, and the needle (not shown) which operates in slot 7 is activated. As the cloth B with superimposed patch A progresses through the machine, edge 19 of guide member 6 engages and guides the patch and cloth until the sewing operation in one direction is completed. The cloth B is then rotated and a similar stitch is applied in another direction. The result being that the superimposed cloth or patch A is stitched to the base cloth B with an even and hence attractive margin C all round.

The runner 3t) and guide member shown in Figs. 5 and 6 correspond very closely in construction to runner 4 and guide member 6, with the exception that runner 39 is intended for use with a two needle machine and has two slots 33 in lieu of the single slot 7 of runner 4. Also guide member 35 includes a cutout section 36 to permit it to be pivoted to the (observers) left bearing support 34 and still occupy the cut out section 32 in the same manner that the opposite hand guide member will occupy cutout section 31. The function and operation of a multiple needle presser foot is similar to the presser foot heretofore described, except of course it may be employed to leave two simultaneous rows of stitches in the material, and it may function at either side of a patch such as A without reversing the cloth as otherwise would be required.

From the foregoing description it will be readily seen that there has been produced a device as substantially fulfills the objects of the invention as set forth herein.

While this specification sets forth in detail the present and preferred construction of this invention, still in practice such deviations from such detail may be resorted to as do not form a departure from the spirit of the invention as defined in the appended claim.

Having thus described the invention, what is claimed as new and useful and is desired to be secured by Letters Patent is:

A presser foot of a sewing machine for guiding material tobe sewed through said presser foot wherein said material consists of one cloth having a cut edge overlying her having ahorizontal hole intermediate its ends in V alignment with said block holes, a pivot pin engaging all of said holes and providing for relative rotary movement "of all mentioned parts, a depending lobe on the forward end of said guide member, said forward end being rearward of the forward end of said shoes whereby said shoes ride over the clothmaterial and, prevent said lobe from digging into said cloth, a lever arm on the 'rear end of said member, a circular recess in the underside of said lever arm, a second recess in the top side of said runner, a I

compression spring inserted in said recesses and operative to apply a down pressure to said lobe against said second cloth when said straight edge is engaging the cut edge of said one cloth whereby the passage of said cloths through said presser foot during sewing operations is guided by the cooperation of said edges.

222?. 22-525 Cited inthe file of this patent UNKTED STATES PATENTS 419,303 Almy Ian. 14, 1890 1,501,901 Gatchell July 22, 1924 2,487,285 Voigt Nov. 8, 1949 2,652,016 Enos ,Sept. 15, 1953

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