Патент USA US2105356код для вставки
Jan, 11, 1938. is. 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 58 _ 57/ p 6/ 62 57 5 ~55 6/ 58 ' “W > G2 G’ . _ ‘Fla. 4. . 7'3 3' INVENTOR. Paul P. Kessler “w 2,105,356 Patented Jan. 11, 1938 ’ UNITED STATES PATENT OFFICE ‘2,105,356 ' 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, Serial’No. 78,050 3 Claims. (01. 112-176) I > .This is a divisional application from the orig inal ?led on February 10, 1936, Serial Number 63,048 for Sewing’ machine. 5 My invention relates to a stitching mechanism for a sewing machine and for making special stitchings of various kinds for textiles and furs. 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 Among the objects of my invention are the _ contact the cloth. For example, when the thread following: To create a sewing machine having the triple function of sewing a stitch not shown 10 on the opposite side of the material sewed; of also sewing a serging or overcast stitch to ?nish the edge of goods, and in addition sewing two pieces ?at fed edge to edge with an overhand stitch. To supply a sewing machine having means for H 01 changing the style of the stitch and for provid ing an even feeding surface for edge to edge sew ing, and guiding means for preventing bunch ing 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 . V30 ?rst contacts the attachment, the thread sub stantially forms a loop and is retarded thereon as it slides downwardly toward the point of the 10 attachment. While this ?rst 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 ?rst loop. When the third loop is formed and contacts the attachment the second loop crosses or loops over the ?rst loop as it slides off the attachment and forms with the ?rst loop a different design of stitch as it contacts the cloth. Substantially at the middle portion of my at ‘possessed by my invention. extending ?anges 6| forming on the under side While I have shown in the accompanying drawings a preferred embodiment of my inven tion, yet I wish it understood that the same is susceptible of modi?cation 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 thereof a groove 62 which acts as a guide in the 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 35 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 40 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. Posi 45 tioned across the slot 50 is a needle 56. An at tachment 51 is adapted to be ?tted into slot 50 formed in the upper pressure plate 49. My at tachment has a back portion 58 which projects slightly upwardly as indicated at 59 to ?t and 50 hold it within the corresponding portion of the slot of the upper pressure foot 49. Continuing integrally from the back portion 58 my attach ment 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 20 tachment on either side are a pair of downwardly feeding of the goods laid ?at edge to edge on an upper plate 63. Said groove 62 is placed over 25 the guide member 26 and cooperates therewith in guiding the adjacent edges of material on either side thereof and limiting the upward pro jection of the edges of the material when being fed through the machine. An upper plate 63 is 30 removably attached to a lower plate 64 ?xed 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 par ticularly where two pieces of goods are to be sewed together edge to edge. This upper plate 63 cooperates with the groove 62 in my attach ment 51 to give even feeding, a?ord 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 oppo site edges slightly upturned, and the ?anges 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 2,105,856 the material. Another purpose is to sew a stitch, a serging or overcast stitch to ?nish the edge of the goods. A third purpose is to sew two pieces edge to edge each fed ?at, and make an over hand stitch in place of the zig zag stitch here tofore known in the art. My device is useful in sewing furs and other materials edge to edge. able member inserted within said slot, said mem ber having a slight upward projection to hold said member within said slot when inserted there in, said member having a channelled portion dis posed above said guide and cooperating therewith Cl for receiving and guiding adjacent edges of ma terial being sewed, and a slight downward and Having thus described my invention, I‘ claim: inward slope tapering toa point for receiving 1. In a sewing machine comprising a needle the stitches and delaying their contact with the ll) material being sewed. 10 and a looper, an upper pressure plate having a slot, a vertically disposed elongated guide meme 3. In a sewing machine comprising a needle ber projecting centrally within said slot, a remove . and a looper, an upper pressure plate having a able member inserted within said slot, said mem ber having a channelled portion disposed above said guide and cooperating therewith for receiv ing and guiding adjacent edges of material being sewed, and a tapered point on said member for receiving the stitches and delaying their contact with the material being sewed. ' ‘ l 2. In a sewing machine comprising a needle ‘and a looper, an upper pressure plate having a slot, a vertically disposed elongated guide mem ber projecting centrally within said slot, a remov slot, a. vertically disposed elongated guide mem ber projecting centrally within said slot, a remov able member inserted within said slot, said mem ber having a channelled portion disposed above said guide and cooperating therewith for receiv ing and guiding adjacent edges of material being ‘ sewed", and a slight downward and inward slope tapering to- a point for receiving the stitches and delaying their contact with the material being sewed. ' PAUL P, KESSLER.