US2540355A - Trimming attachment for sewing machines - Google Patents

Trimming attachment for sewing machines Download PDF

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Publication number
US2540355A
US2540355A US630635A US63063545A US2540355A US 2540355 A US2540355 A US 2540355A US 630635 A US630635 A US 630635A US 63063545 A US63063545 A US 63063545A US 2540355 A US2540355 A US 2540355A
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United States
Prior art keywords
blade
ledger
cutting
ledger blade
shaft
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Expired - Lifetime
Application number
US630635A
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English (en)
Inventor
Victor J Sigoda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Man Sew Corp
Original Assignee
Man Sew Corp
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Filing date
Publication date
Priority to BE468095D priority Critical patent/BE468095A/xx
Application filed by Man Sew Corp filed Critical Man Sew Corp
Priority to US630635A priority patent/US2540355A/en
Priority to GB12883/46A priority patent/GB642031A/en
Priority to FR933706D priority patent/FR933706A/fr
Priority to US70622946 priority patent/US2666486A/en
Application granted granted Critical
Publication of US2540355A publication Critical patent/US2540355A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B37/00—Devices incorporated in sewing machines for slitting, grooving, or cutting
    • D05B37/04—Cutting devices
    • D05B37/08—Cutting devices with rotatable tools
    • D05B37/085—Pinking

Definitions

  • This invention relates to trimming attachmentsfor sewing machines of that general class, in f which as two sectionsof fabricY are sewed together to form a seam in the operationof the machine, their edge portions are simultaneously trimmed or pinked.
  • pinks are formed in the fabric by successively executed cuts, first from the edge of ,the fabric to the apex of the V-shaped notch, and then outwardly from said apex to the fabric edge.
  • One of the objects of the invention resides in Y the provision of such a trimming or pinking attachment, capable of application to various standard types of sewing machines, which is operated from the needle actuating shaft and mounted and arranged to afford maximum visibility and a minimum of obstruction to the feeding of the work to the stitch forming mechanism of the machine,
  • Another feature of the present invention is the improved ledger blade having shearing edges raised above the plane of the blade surface and acting to apply sufficient tension vto superimposed fabric edges being pinked to prevent relative movement thereof and insure exact registration of the pinking cuts.
  • An additional object of the invention is'to provide improved means for tensioning the ledger blade relative to the cutter, whereby uniform pressure and wear throughout the length of the coacting shearing edges-of the blade and ycutter teeth is obtained.
  • Still another object resides in the provisionl of coacting parts on the rotary cutter and ledger blade which effectively'prevent the edges of the cutter teeth from over-riding the shearing edgesA f of the ledger blade.
  • a further object of one embodiment of the present invention is to provide a novel method* and means for joining the folded edges of two pieces of fabric in a butt seam and separately pinking saidv edges in a top stitching operation, in which the operator always works on the right side of the fabric to obtain better control over the nished line of stitching.
  • the invention ⁇ comprises the improved trimming or pinking attachment and the construction'and relative arrangement Iof its several parts, as will hereinafter be more fully described, illustrated in the accompanying drawings and' subsequently incorporated in the subjoined claims.
  • Figure 1 is a sideelevation partly in section yshowing one embodiment' of the invention as applied to a Singer'sewing machine 'of the 95 class;
  • Figure 2 is a top plan view
  • Figure '3 is an end elevation, the cover of the 'y drive Agear housing being removed;
  • Figure 4 is a detail plan View of the adaptor throat plate of the machine
  • Figure 5 is a' longitudinal sectional View taken i n substantiallyon 'the line 5f-,5of Figure 2;
  • Figure 6 is a transverse- ⁇ sectional view taken substantially on the line 6-6 of Figure 2;
  • Figure 7 is a detail plan view of the. ledger blade
  • Figure 8 is a side elevation partlyin section w message a Slightly impbdied embqdimem te.
  • Figure 9 is a horizontal sectional view taken substantially on the line 9 9 of Figure 8.
  • Figure 10 is a fragmentary vertical section taken substantially on the line l-l of Figure 9;
  • Figure 10a is an end elevation of another form of the rotary cutter
  • Figure 11 is a plan view of another alternative embodiment of the invention applied toY zig-zag stitching machine of the Singer 107-W or 143-W class for use in a new method of forming a thin butt seam with simultaneous pinking in a top stitching operation;
  • Figure 12 is a longitudinal sectional view taken substantially on the line I2-i2 of Figure ll.
  • Figure 13 is a transverse sectional view taken substantially on the line I3-I3 of Figure 11.
  • Fig. 14 is a side elevation corresponding to a fragmentary portion of Fig. 8, showing a modification in the drive means which provides for oscillating operation of the movable cutter;
  • Fig. l is an end elevation taken on line
  • FIG. 1 I have shown a familiar type of sewing machine including the bed plate i0, hollow pedestal l2 and the horizontal arm I4 at the upper end thereof terminating in the needle bar guide head I6 in which the vertically reciprocating needle bar is mounted carrying the needle I8 at its lower end.
  • the needle bar actuating shaft 2li is journalled in arm I4 and at its rear end carries the pulley 22 for connection by the usual driving belt (not shown) to a motor or other source of power.
  • the bed IG is provided with an opening 24 therein to accommodate parts of the invention to be presently described, and in the upper surface of said bed, the throat plate 26 is secured by means of screws 28 as seen in Figure 4.
  • This throat plate is provided with an opening 3e to accommodate the usual four motion feed dog 32, and the inner end of the throat plate is also cut away or recessed as at 34 in registration with the opening 24 in bed plate i0.
  • the trimming or pinking attachment comprises a base plate 36 secured upon the bed l0 by means of screws 38.
  • the cutter carrying member 40 is adjustably mounted by means of the screws 42 threaded in the base plate and passing upwardly through the longitudinal slots 44 in opposite edge portions of the member 46.
  • the member 46 is formed with a cylindrical bearing part 46 having its axis obliquely inclined transversely and vertically with respect to said member.
  • the member 40 is formed with longitudinally extending rabbets 48 receiving the opposite side edges of a ledger blade 5G mounted between the member 40 and the base plate 36.
  • the ledger blade 50 is provided at its forward end with a nose piece 52 which may be either integral with the blade or separately formed and riveted or otherwise rigidly secured thereto as indicated at 54 in Figure '7 of the drawings. This projecting nose piece is disposed below the body portion of the ledger blade and substantially in the plane of the base plate 36 for movement within the opening 56 of the base plate.
  • the forward end portion of the ledger blade 50 has an elongated longitudinally extending recess 58 therein at the rear end of which a tapering depression or cavity 59 is formed in the surface of the plate to accommodate parts of the cutter drive mechanism, as will be later described.
  • the nose piece 52 of the ledger blade in spaced relation from the open end of the recess 5B in the body of the blade is provided with a V-shaped notch 66 and along each side edge of this notch, said nose piece is provided with an upstanding narrow rib or land 62.
  • the opposed inner edges 64 of the ribs provide shearing edges with which. the edges of a rotary cutter to be presently described are adapted to coact.
  • one of the ribs 62 is of greater length than the other. However, this is not essential, and if desired the extension of the longer rib beyond the open side of notch 60 may be omitted.
  • the nose piece 52 is further provided with the inclined edge 65 meeting the inner end of the shorter rib 62 at the open side of the notch 60 to form the point or apex 6B, the purpose of which will be presently explained.
  • the forward end portion of bearing 46 extends downwardly through the recess or opening 58 in the ledger blade 59 and the opening 56 in the base plate 36.
  • the cutter shaft 16 is journalled and is provided at its forward lower end with the cutter head l2 having a plurality of circumferentially spaced substantially radial blades or teeth "i4, each of which is formed with the cutting edges 'i6 and 'IS respectively disposed in approximately the same angular relation to each other as the shearing edges 64 of the ledger blade 50.
  • a large diameter thrust washer and deflector 8B is interposed between the rear side of the cutter head 12 and the bearing 46.
  • the shaft 'I0 is formed with a central longitudinal bore 'i5 extending through the cutter head and radial passages 'il extending from said bore to the periphery of the shaft.
  • the upper side of the bearing 46 is provided with one or more radial apertures 19 through which lubricant is supplied and from which it is conducted through the bore 15 and passages 'H to the lower side of the bearing. If desired this bearing may also be provided in the lower side thereof with radial opening 82 through which excess lubricant may be discharged upon the hook shaft bearing of the sewing machine mounted beneath the bed plate I0.
  • this blade tensioning means comprise the rod 84, axially movable through the upper end of a guide arm ⁇ 86 fixed to the rear end of the member 4D and vertically inclined relative thereto.
  • the lower forward end of this rod is provided with the eye 823 engaged over the upper end of a vertically inclined pin Sil which is suitably xed at its lower end to the ledger blade 58.
  • the rear end of the rod 64 is threaded as at 92 to receive the adjustable nut 94 between which and the guide 86 the coil spring 96 is interposed.
  • the pin Si) is located in longitudinal alignment with the base or apex of the notch 60 in the ledger blade so that the shearing pressure of the edges 64 of the ledger blade against the edges 'I6 and 18 of the cutter head will be substantially uniform throughout the length thereof.
  • ⁇ v T" f M The yforward end of thebo're15 ⁇ in the cutter head 12 is closed by means o'f ⁇ a Ahardened steel plug, indicated at 91 in Figure 5' of the drawings, with which the point or apex 68 on the nose 52 of the ledger blade is engaged to prevent chatter or vibration of the blade.
  • 00 flexibly connected at one of its ends to the rear end of the shaft l0 by a conventional universal joint
  • 00 is connected with the forward end of the drive shaft
  • This drive shaft is supported for axial sliding movement in a bushing
  • a sleeve I I8 is fixed to shaft
  • the above arrangement provides a very low elevation of the parts of the attachment above the bed plate
  • '2 is provided with a detachable cover plate
  • the cutter shaft will make one revolution in each six'revolutionsof .the needle ,actuating shaft.
  • onpinking cutor notch? willbel made in the edge of the fabric in each'three lrotations of the shaft 20 and hence for each'three stitches.
  • the cutter shaft may be arranged closely adjacent to thebed plate, thus providing for a minimum of obstruction to the smooth movement of the work overv said bed with better visibility, facilitating accurate control of the seaming operation in both top stitching and ordinary stitching.
  • 36 is adjustably mounted.
  • the edges o f the superposed fabric layers are in contact, as the same are fed intermittently by the dog 32 beneath the machine presser foot, conventionally illustrated at
  • the fabric edges are thus accurately positioned with respect to the line of stitching for movement over the front endor nose 52 of the ledger blade and the shearing edges 64 on the ribs 62 thereof.
  • These ribs apply a certaintensional stress to the material and tend to prevent relative shifting movement of the superimposed fabric sheets. This is of material importance in operating upon silk or satin fabrics and others manufactured of synthetic materials which have a smooth or highly glossed-surface as it prevents relative shifting movements between the ysuperimposed fabric parts and insures accurate registration of the pinking cuts or notches therein.
  • This bracket is formed at its upper end with an elongated bearing
  • 52 is fixed and in mesh with a relatively wide gear
  • 58 is journalled in the bracket and carries a pinion
  • a single-toothed pinking cutter may be employed, and mounted, as shown in 5, for oscillation about an axis inclined to the horizontal.
  • One form of drive therefor is shown in Figs. 14 and 15. This form or any equivalent may be substituted for the rotary drive means shown in Figs. 1 and 8 to transmit an oscillatory motion to cuttel ⁇ shaft in timed relation with the feeding movement of the fabric over the ledger blade.
  • the single-toothed cutter will be rotated in one direction downwardly through the notch in the ledger blade to form a pinking cut in the material, and then, the direction of rotation will be reversed to-raise the pinking tooth above the plane of the ledger blade so that the edge of the fabric may then be fed past the cutter tooth withiut interference.
  • These oscillatory motions of a single-toothed cutter would produce a succession of pinking cuts in the edge of the fabric in its intermittent feeding movement over the surface of the ledger blade.
  • Such an oscillating drive as used with a trimming attachment of this type applied to a Singer sewing machine of the 400 W class, (described above with reference to Figs. 8 to l0 of the drawings), could consist of an eccentric
  • 41 transmit a rocking or oscillating motion to pinker drive shaft
  • 66 may be mounted on the machine bed in advance of the presser foot of the machine to fold the edge portion of one fabric piece upon another as they are moved beneath the presser foot to the feeding mechanism.
  • This folder may be similar to that shown in Patent No. 2,239,743.
  • I also preferably provide a cover plate
  • any suitable cover plate may also be provided for the attachment as shown in Figure 1 of the drawings. It is obvious that the provision of such a cover plate will greatly facilitate the free and easy passage of material over the attachment and prevent entanglement of the same with the driving connections for the cutter shaft.
  • 14 which are of substantially the structural form as the part 52 of the ledger blade 50 heretofore described. These blades are adjustably mounted upon the machine bed i8 by means of the screws
  • the intermediate portions of the ledger blades having the shearing edges extend across the opening in the machine bed and are spaced above the throat plate
  • This throat plate is provided with the usual slots for the toothed portions of the feed dog and-falso with the elongated opening
  • 88 which coact with the shearing edges'of the respective ledger blades
  • 98 is-journalled and to the ends thereof the spiral gears
  • 98 is in mesh with the spiral gear 202 on one of the cutter shafts
  • the cutter shaft provided with the gear 202 is connected by the universally jointed shaft section 206 with the drive shaft 208.
  • This drive shaft is journalled in a suitable bearing 2
  • Y 1 While any suitable means may be provided for operating the shaft 208 from the main shaft of the machine, in the present instance, for this purpose
  • I have shown a spiral gear 2
  • This gear is in mesh withV a similar gear 2 I8 fixed upon the vertical shaft 220 journalled at its lower end 4in a bearing 222 within the housing 2 I0 and extending upwardly through the machine bed l0 and the.
  • a spiral gear 226 is Xed to the shaft 220 and has meshing engagement with the gear 228 secured to shaft 288.
  • I preferably provide a curved guard member 230 on each of the ledger blades
  • a special form of presser foot 232 cooperates with a throat plate
  • the individual edge portions f o f the seam are pinked by the respective rotary pinking members
  • 88 at the inner side of the line of stitching is rotated in a clockwise direction at the required predetermined speed while theA member
  • the thrust washer plate is of sufficient diameter to prevent undesired contact of the cutting yteeth with the material and to .eiciently serve as a deflector, tending to direct wasteland lint transversely and rearwardly of the cutter so that it will not move laterally and collect upon the surface of the ledger blade and the driving connections with the cutter operating shaft. This deiiector also prevents the winding of excess'material about the knife shaft or being caught between the shaft bearing and the end of the knife.
  • the raised shearing edges 84 of the ledger blade by holding the materialv taut land under tension provide a greatly improved and sharper cutting action and materially reduces the frequency of resharpening these shearing edges.
  • this construction enables such materials as satin or silk having slippery surfaces which tend to slide over each other to be satisfactorily pinked. 'By placing the superimposed fabric layers under tension at the point of cut, the pinking notches will be cut in both layers of fabric in accurate alignment with each other. Normally; the presser foot and the top surface of the ledger blade would act together in resisting the free passage of the fabric material.
  • the shearing edges on the raised ribs 52 the top surface of the ledger blade in contact with the material under the presser foot is greatly reduced, thus minimizing resistance to the movement of the material over the ledger blade in the intermittent feeding movement thereof to the stitching mechanism.
  • this feature of my invention enables the shearing edges to be sharpened with a minimum of manual labor as it is only necessary to dress the top edges of the ribs 62 instead of the entire surface of the ledger blade.
  • the present invention provides simple and effective means for maintaining the shearing edges of the ledger blade in proper relation to the coacting cutting edges of the rotary cutter member together with means for easily and quickly regulating the tension of the ledger blade as may be required in accordance with the structural characteristics of the particular material being operated upon.
  • the changeable driving gear ratios for varying the number of pinking cuts per inch of stitching is also an important practical feature of the invention.
  • the present invention provides a pinking attachment of this kind which is readily applicable to various standard types of sewing machines and is capable of high speed factory production of pinked fabrics, particularly for the purpose of producing an accurately trimmed or pinked seam edge simultaneously with the stitching operation, with the assurance of uniformly high quality with a minimum of waste.
  • the attachment comprises a minimum number of mechanical elements of very simple structural form, initial production cost is reduced to a minimum while maintenance expense will be reasonably low.
  • mechanism for decoratively cutting sheet material supported by the machine bed at one side of said stitch forming mechanism comprising a ledger blade, a coacting rotatable cutting member movable about a xed axis, said axis being disposed transversely to the path of feed of the material and in intersecting relation with the ledger blade, said ledger blade having means for bearing contact with said cutting member substantially at the axis of rotation thereof to maintain a predetermined cooperative cutting relation between said blade and said cutting member, speed reduction gearing driven from the main shaft, and a plurality of universally jointed drive shaft sections operatively connecting said gearing with the cutting member.
  • a stitch forming mechanism In mechanism for decora-tively cutting sheet material for sewing machines, a stitch forming mechanism, a base plate on the machine bed, a ledger blade laterally spaced from the line of feed of the work to the stitch forming mechanism of the machine, a guide member for the ledger blade, a rotatable cutting member mounted on said guide member to move about a fixed axis, said axis being disposed transversely to the path of feed of the work and in intersecting relation with the ledger blade, said ledger blade having means for bearing contact with said cutting member substantially at the axis of rotation thereof to maintain a predetermined cooperative cutting relation between said blade and said cutting member, adjustable means mounted on the guide member and connected to the ledger blade to varia-bly resist movement of the blade relative to the base plate and cutting member, and means for laterally adjusting said guide member and ledger blade as a unit on the base plate with respect to the line of stitching.
  • Mechanism as dened in claim '7 having an operating shaft for the cutting member journalled in a bearing on said guide member, and wherein a combined thrust and deflecting washer is interposed between one end of the bearing and said cutting member.
  • a base plate on the machine bed a' ledger blade' having a part disposed in the plane of the base plate and provided with a V-shaped pinking notch having diver commence shearing edges, a guidem'e'mber for the ledger blade, a rotatable cutting member mounted on said guide member to move about a xed axis, said axis being disposed transversely to the path of feed'of the work and in intersecting re-v lation with the ledger blade, said rotatable mem-'7 ber having at least two cutting edges respectively coacting with complementary shearing edges of the ledger blade, said ledger blade having means for bearing contact with said cutting member substantially at the axis of rotation thereof to maintain a predetermined cooperative cutting relation between said blade and said cutting member, and tensioning means for said blade mounted on the guide member and operatively connected with said blade at a point in longitudi- ⁇ ledger blade mounted on the V
  • the sewing machine is of the zig-zag type, and is provided with two laterally spaced apart ledger blades mounted on said bed above the throat plate adapted to receive between them the folds of two pieces of fabric with the fold bights in abutting relation and the fabric edges extending laterally in opposite directions beneath the respective ledger blades, each of said ledger blades having divergent shearing edges, a rotatable cutting member associated with each ledger blade operatively mounted beneath the bed plate of the machine and in intersecting relation to the plane of the ledger blade, each of said cutting members having at least two angularly related qfeed of the work to the stitch-forming mecha- ⁇ nism,-comprising a ledger blade, a coacting actuating said cutting members.
  • mechanism for decoratively cutting sheet matey rial comprising a ledger blade and a coacting rotatable cutting member movable about a xed axis, said axis being disposed transversely to the path of feed of the material and in intersecting relation to the ledger blade, said ledger blade having means for bearing contact with said cutting member substantially at the axis of rotation thereof to maintain a predetermined cooperative cutting relation'between said blade and said cutting member.
  • a pinking attachment mounted at one side of the path of feed of the work to the stitch forming mechanism, comprising a longitudinally disposed ledger blade, a single-toothed pinking member mounted for rotary movement about an axis inclined to said ledger blade and disposed transversely to the path of feed of the work, said ledger blade having means for bearing contact with said pinking member substantially at the axis of rotation thereof, and means for oscillating said pinking member about said axis to rform a pinking cut during each interval of rest of the work, comprising an eccentric, a pitman oscillated thereby, and a crank arm pivotally attached thereto and connected to oscillate said pinking member.
  • a base plate a ledger blade rectilinearly movable on the base plate in substantially parallel relation therewith, a rotary cutting member, means for mounting said member on the base plate for rotation in xed intersecting relation with the ledger blade, said member having at least two cutting edges and said ledger blade having complementary cutting edges for shearing coaction therewith, said blade being further provided with a part exerting thrust bearing pressure on the cutting member in substantiallyparallel relation to the rotative axis thereof, and means yieldingly urging said ledger blade to its normal position relative to the cutting member and base plate and main- 15 taining yielding shearing pressure of the cutting edges of said blade With the cutting edges of said member in the rotary movement of the latter.
  • a base plate a ledger blade, a member secured to the base plate slidably guiding the ledger blade in a parallel path relative to the base plate, said member having a bearing at one end axially inclined longitudinally of said member, a rotary cutting member having a shaft journalled in said bearing and supporting said cutting member for rotation in transverse intersecting relation with the ledger blade, said cutting member having at least two cutting edges and said ledger blade having complementary cutting edges for shearing coaction therewith, and means mounted on the opposite end of said guiding member operatively connected to the ledger blade to urge the same in one direction and maintain a yielding shearing pressure of the cutting edges of said blade with the cutting edges of said cutting member in the rotary movement of the latter.
  • a ledger blade movable in a horizontal plane, a cutting member and means mounting said member for rotation about an axis disposed longitudinally of the blade and in xed intersecting relation to the ledger blade, said member and blade having coacting cutting edges, and adjustable means operatively connected to the ledger blade to yieldingly urge said blade into substantially constant bearing contact with the cutting member at its axis of rotation and maintain a predetermined resistance to shearing pressure of the cutting edge of the blade with the cutting edge of said cutting member in the rotation of the latter.
  • a ledger blade disposed substantially in a horizontal plane, a cutting member, meansmounting said member for movement about an axis intersecting the plane of said blade, said blade and member having coacting cutting edges, and means for yieldably maintaining a substantially constant thrust pressure contact between the ledger blade and cutting member in an angular direction relative to the path of movement of the cutting member with respect to the ledger blade, to establish a normal predetermined cooperative relationship between the cutting edges of said member and blade.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Treatment Of Fiber Materials (AREA)
US630635A 1945-11-24 1945-11-24 Trimming attachment for sewing machines Expired - Lifetime US2540355A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE468095D BE468095A (en:Method) 1945-11-24
US630635A US2540355A (en) 1945-11-24 1945-11-24 Trimming attachment for sewing machines
GB12883/46A GB642031A (en) 1945-11-24 1946-04-29 Trimming attachments for sewing machines
FR933706D FR933706A (fr) 1945-11-24 1946-09-17 Dispositif à découper pour machines à coudre et machine munie de ce dispositif
US70622946 US2666486A (en) 1945-11-24 1946-10-28 Ledger blade for pinking mechanisms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US630635A US2540355A (en) 1945-11-24 1945-11-24 Trimming attachment for sewing machines

Publications (1)

Publication Number Publication Date
US2540355A true US2540355A (en) 1951-02-06

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ID=24527971

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Application Number Title Priority Date Filing Date
US630635A Expired - Lifetime US2540355A (en) 1945-11-24 1945-11-24 Trimming attachment for sewing machines

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US (1) US2540355A (en:Method)
BE (1) BE468095A (en:Method)
FR (1) FR933706A (en:Method)
GB (1) GB642031A (en:Method)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2666486A (en) * 1945-11-24 1954-01-19 Man Sew Corp Ledger blade for pinking mechanisms
US2666483A (en) * 1947-11-13 1954-01-19 Man Sew Corp Pinking mechanism
US2827867A (en) * 1954-09-29 1958-03-25 Singer Mfg Co Suction devices for pinking attachments

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1579577A (en) * 1924-06-04 1926-04-06 Gillette Safety Razor Co Razor
US1870819A (en) * 1928-11-10 1932-08-09 Machines A Affuter Soc Et Cutting blade
US1944580A (en) * 1930-01-06 1934-01-23 Victor J Sigoda Pinking attachment for sewingmachines
US2034354A (en) * 1934-10-24 1936-03-17 Topstitch Machine Corp Art of producing sewed garments
US2142079A (en) * 1934-05-15 1938-12-27 Metropolitan Sewing Machine Co Device for sewing machines
US2172570A (en) * 1939-09-12 Multiple pinking mechanism
US2177854A (en) * 1937-07-17 1939-10-31 Orazio J Antonelli Sewing machine attachment
US2182911A (en) * 1936-10-19 1939-12-12 Lewis Invisible Stitch Machine Method of forming seams
US2239743A (en) * 1938-01-31 1941-04-29 Mansew Pinking Attachment Corp Trimming device for sewing machines
US2297372A (en) * 1939-05-26 1942-09-29 Lewis Invisible Stitch Machine Combined seaming and auxiliary mechanism
US2301229A (en) * 1941-04-28 1942-11-10 Man Sew Pinking Attachment Cor Pinking mechanism

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2172570A (en) * 1939-09-12 Multiple pinking mechanism
US1579577A (en) * 1924-06-04 1926-04-06 Gillette Safety Razor Co Razor
US1870819A (en) * 1928-11-10 1932-08-09 Machines A Affuter Soc Et Cutting blade
US1944580A (en) * 1930-01-06 1934-01-23 Victor J Sigoda Pinking attachment for sewingmachines
US2142079A (en) * 1934-05-15 1938-12-27 Metropolitan Sewing Machine Co Device for sewing machines
US2034354A (en) * 1934-10-24 1936-03-17 Topstitch Machine Corp Art of producing sewed garments
US2182911A (en) * 1936-10-19 1939-12-12 Lewis Invisible Stitch Machine Method of forming seams
US2177854A (en) * 1937-07-17 1939-10-31 Orazio J Antonelli Sewing machine attachment
US2239743A (en) * 1938-01-31 1941-04-29 Mansew Pinking Attachment Corp Trimming device for sewing machines
US2297372A (en) * 1939-05-26 1942-09-29 Lewis Invisible Stitch Machine Combined seaming and auxiliary mechanism
US2301229A (en) * 1941-04-28 1942-11-10 Man Sew Pinking Attachment Cor Pinking mechanism

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2666486A (en) * 1945-11-24 1954-01-19 Man Sew Corp Ledger blade for pinking mechanisms
US2666483A (en) * 1947-11-13 1954-01-19 Man Sew Corp Pinking mechanism
US2827867A (en) * 1954-09-29 1958-03-25 Singer Mfg Co Suction devices for pinking attachments

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Publication number Publication date
FR933706A (fr) 1948-04-29
GB642031A (en) 1950-08-23
BE468095A (en:Method)

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