US2105356A

US2105356A - Sewing machine

Info

Publication number: US2105356A
Application number: US78050A
Authority: US
Inventors: Paul P Kessler
Original assignee: Individual
Current assignee: Individual
Priority date: 1936-02-10
Filing date: 1936-05-05
Publication date: 1938-01-11
Anticipated expiration: 1955-01-11

Description

Jan, 11, 1938. i P. KESSLER 2,105,356

SEWING MACHINE Original Filed Feb. 10, 1956 2 Sheets-Sheet l INVENTOR. Pou I P Kessler' Jan. 11, 1938. P. P. KESSLER 2,105,356

SEWING MACHINE Original Filed Feb 10, 1936 2 Sheets-Sheet 2 57 5 58 57/ 5 W 6/ p 6/ G2 G 2 Fla. 4. '3

INVENTOR. Paul P. Kessler Patented Jan. 11, 1938 PATENT OFFICE SEWING MACHINE 'Paul P. Kess'ler, Chicago, 111.

Original application February 10, 1936, Serial No. 63,048. Divided and this application May 5,

11 936, SerialNo. 78,050

3 Claims. (01. 112-176) I This is a divisional application from the original filed on February 10, 1936, Serial Number 63,048 for Sewing machine.

My invention relates to a stitching mechanism for a sewing machine and for making special stitchings of various kinds for textiles and furs.

Among the objects of my invention are the following: To create a sewing machine having the triple function of sewing a stitch not shown on the opposite side of the material sewed; of also sewing a serging or overcast stitch to finish the edge of goods, and in addition sewing two pieces fiat fed edge to edge with an overhand stitch. To supply a sewing machine having means for changing the style of the stitch and for providing an even feeding surface for edge to edge sewing, and guiding means for preventing bunching of either or both edges of the two pieces to be sewed together edge to edge, and such other objects, advantages and capabilities as will later more fully appear and which are inherently possessed by my invention.

While I have shown in the accompanying drawings a preferred embodiment of my invention, yet I wish it understood that the same is susceptible of modification and change without departing from the spirit of my invention.

Referring to the drawings, Fig. 1 is a front elevation of the sewing machine embodying the features of my invention. Fig. 2 is a sectional elevation showing the use of one of my stitch changing implements; Fig. 3 is a side elevation of the stitch changing implement shown in Fig. 2; Fig. 4 is a front view of Fig. 3; Fig. 5 is a front elevational view of my sewing machine with feed plate in position for edge to edge sewing.

Referring more particularly to the embodiment selected to illustrate my invention, it comprises a feed pressure plate 49 having a slot 50 placed substantially over anradjustable center guide 26. A main drive shaft 52 suitably connected to the upper portion I2 of the frame In and operated by a drive wheel Ill connected to motive means has a connection 54 supporting a looper 55. Positioned across the slot 50 is a needle 56. An attachment 51 is adapted to be fitted into slot 50 formed in the upper pressure plate 49. My attachment has a back portion 58 which projects slightly upwardly as indicated at 59 to fit and hold it within the corresponding portion of the slot of the upper pressure foot 49. Continuing integrally from the back portion 58 my attachment has a slight downward and inward slope and tapers to a point 60 at its front end. This construction of my attachment determines in its function the contact of the thread with the cloth inserted, or the like as follows:

"When my attachment '5T-is not in use a stitch is made on the cloth. ,When my attachment 5'! is used the loop of the stitch is retarded on the attachment so that the loop does not immediately contact the cloth. For example, when the thread first contacts the attachment, the thread substantially forms a loop and is retarded thereon as it slides downwardly toward the point of the attachment. While this first loop is retarded on the attachment the thread again contacting the attachment forms a second loop which is also retarded and is higher up on the attachment than the first loop. When the third loop is formed and contacts the attachment the second loop crosses or loops over the first loop as it slides off the attachment and forms with the first loop a different design of stitch as it contacts the cloth.

Substantially at the middle portion of my attachment on either side are a pair of downwardly extending flanges 6| forming on the under side thereof a groove 62 which acts as a guide in the feeding of the goods laid fiat edge to edge on an upper plate 63. Said groove 62 is placed over the guide member 26 and cooperates therewith in guiding the adjacent edges of material on either side thereof and limiting the upward projection of the edges of the material when being fed through the machine. An upper plate 63 is removably attached to a lower plate 64 fixed to the lower bed I l by suitable means such as screws or the like 65. Said upper plate 63 forms a level surface for goods for sewing purposes and particularly where two pieces of goods are to be sewed together edge to edge. This upper plate 63 cooperates with the groove 62 in my attachment 51 to give even feeding, afiord accurate edge to edge sewing, and to prevent bunching of. either or both edges of the two pieces to be sewn. In feeding the materials to be sewed together edge to edge, said materials are fed with their opposite edges slightly upturned, and the flanges 6| forming groove 62 of my attachment 5'! maintain the slightly vertically projected edges. As the materials pass said groove 62 and contact center guide 26, said center guide separates the edges of the materials and retains each of said edges in vertical position for the passage of the needle therethrough. My attachment 5'! thus has the 1 double feature of determining the style of stitch as well as forming a guide member to insure proper edge to edge sewing.

One of the purposes of my sewing machine is to sew a stitch not shown on the opposite side of the material. Another purpose is to sew a stitch, a serging or overcast stitch to finish the edge of the goods. A third purpose is to sew two pieces edge to edge each fed fiat, and make an overhand stitch in place of the zig zag stitch heretofore known in the art. My device is useful in sewing furs and other materials edge to edge.

Having thus described my invention, I claim: 1. In a sewing machine comprising a needle and a looper, an upper pressure plate having a slot, a vertically disposed elongated guide meme ber projecting centrally within said slot, a remove able member inserted within said slot, said member having a slight upward projection to hold said member within said slot when inserted therein, said member having a channelled portion disposed above said guide and cooperating therewith for receiving and guiding adjacent edges of material being sewed, and a slight downward and inward slope tapering toa point for receiving the stitches and delaying their contact with the material being sewed.

3. In a sewing machine comprising a needle and a looper, an upper pressure plate having a slot, a. vertically disposed elongated guide member projecting centrally within said slot, a removable member inserted within said slot, said member having a channelled portion disposed above said guide and cooperating therewith for receiving and guiding adjacent edges of material being sewed", and a slight downward and inward slope tapering toa point for receiving the stitches and delaying their contact with the material being sewed.

' PAUL P, KESSLER.