US2636462A - Overedge sewing machine - Google Patents

Overedge sewing machine Download PDF

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Publication number
US2636462A
US2636462A US122204A US12220449A US2636462A US 2636462 A US2636462 A US 2636462A US 122204 A US122204 A US 122204A US 12220449 A US12220449 A US 12220449A US 2636462 A US2636462 A US 2636462A
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United States
Prior art keywords
looper
overedge
shaft
rod
needle
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Expired - Lifetime
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US122204A
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English (en)
Inventor
Albert C Peterson
Ned L Wallenberg
Clarence C Smith
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Union Special Machine Co
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Union Special Machine Co
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Application filed by Union Special Machine Co filed Critical Union Special Machine Co
Priority to US122204A priority Critical patent/US2636462A/en
Priority to FR1004003D priority patent/FR1004003A/fr
Priority to DEU102A priority patent/DE822186C/de
Priority to CH292758D priority patent/CH292758A/fr
Priority to GB13554/50A priority patent/GB672098A/en
Application granted granted Critical
Publication of US2636462A publication Critical patent/US2636462A/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
    • D05B1/00—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both
    • D05B1/08—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both for making multi-thread seams
    • D05B1/18—Seams for protecting or securing edges
    • D05B1/20—Overedge seams
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B29/00—Pressers; Presser feet
    • D05B29/06—Presser feet
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B73/00—Casings
    • D05B73/04—Lower casings
    • D05B73/12—Slides; Needle plates
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B85/00—Needles
    • D05B85/06—Curved needles

Definitions

  • This invention relates to sewing machines intended for industrial use and more particularly to machines of this type adapted to provide a line of overedge stitching of either the twothread or three-thread types.
  • a primary object of the invention has been to provide a machine of the above indicated character which will operate at high speeds, in the neighborhood of or even above 5500 stitches per minute, without undue vibration and with a minimum of wear and servicing.
  • Another object has been to provide a machine of the character mentioned which is of compact and relatively simple construction and which may be easily operated.
  • This phase of the invention is directed, in part, to the comfort and convenience of the operator and the ready observation of the stitch forming devices to insure correct formation of the desired seams.
  • a feature of the invention resides in the provision of an enclosed housing at one side of the line of stitching which houses, in a lubricant-tight enclosure, all of the operating devices for the stitch forming elements and also the edge trimming mechanism usually provided in overedge sewing machines.
  • Another feature, related to th foregoing feature, is the provision of stitch forming instrumentalities and edge trimming mechanism which involves a plurality of operating shafts and rods or bars which are in parallel relation to each other and also to the main operating shaft of the machine.
  • a further feature is the provision of an overedge stitch forming member which is subjected to both longitudinal bodily movements and transverse oscillatory movements along and about an axis which is in a relatively high plane, preferably slightly above the work supporting surface.
  • the means for operating this member is such that a dwell or reduction in speed is provided toward one end of the stroke of reciprocation or bodily movement of the member. This .is such that relative rapid bodily movement occurs, toward and away from the needle, when the thread engaging portion of the member is above the work support and a slower bodily movement occurs when such thread engaging portion is below the work support. Better stitch formation results from this. It also permits the machine to be used more advantageously for the stitching of heavier materials, since the active and of the stitch forming member may be carried a greater distance from the throat plate in its movements around and ver the ed e of the work.
  • a still further feature of the invention resides in the relative arrangement of the various stitch forming instrumentalities.
  • This includes not only the provision of two looper rods parallel with the main shaft of the machine, and each arranged to be reciprocated longitudinally of its axis, but also the positioning of one of these rods above and behind the other.
  • the upper rod moreover, is given oscillatory movements as well as reciprocatory movements.
  • Both rods are operated across the line of feed and all of the operating mechanism for both rods is located to the right of the needle or the line of stitching.
  • the operating means for the needle is similarly located. All of these features contribute to the production of uniform stitches, with a minimum risk of incomplete stitch formation, and in such a manner that the point of stitch formation is visible without requiring the operator to assume an awkward position.
  • Fig. 1 is a front elevational view of the machine, a portion of the work supporting plate being broken away to show normally concealed parts;
  • Fig. 2 is a longitrdinal section through the machine, taken along its axis;
  • Fig. 3 is a detail view, in vertical section, illustrat ng a. modification in which the overedge, threaded looper is replaced by a spreader;
  • Fig. 4 is a horizontal section through the machine, taken along the broken line 44 of Fig. 2;
  • Fig. 5 is a view partially in end elevation and partially in vertical section, taken substantially along the line 55 of Fig. 1;
  • Fig. 6 is a detail view in section, through the presser bar tensioning means, taken along the line 66 of Fig. 5;
  • Fig. 7 is a vertical sectional view through the machine, taken along the line 'l--'! of Fig. 2;
  • Fig. 8 is a detail view, in vertical section along the line 88 of Fig. 4, showing certain of the operating connections in the machine;
  • Fig. 9 is a similar detail view, in section along the line 9-9 of Fig. 4, showing additional operating connections;
  • Fig. 10 is a detail view, partly in plan and partly in horizontal section, showing the construction and mounting of the presser foot.
  • Fig. 11 is a. diagrammatic view illustrating the an arm .32 secured to a rock shaft 33.
  • the illustrative machine has a main frame a large portion of which .is in .the form of an enclosed housing, including a vertical wall structure U] (Fl-gs. 1 and 2) a bottom H secured in oil-tight relation to the wall structure in any suitable way as by means of screws, and a top cover 12 disposed on a slope, as shown, and secured to the vertical walls by screws 13.
  • the left hand end of the housing (Fig. 2) is closed by a substantially vertical wall M from the lowerend of which an extension l5 projects beneath the work supporting member or cloth plate It of the machine. Between the extension l5 and the work supporting member IS, a partially enclosed space is provided for certain of the stitch-forming and I work-feeding devices to be hereinafter described.
  • Member 29 has an outwardly projectng ear H which fits between a pair of lugs 22, formed on the member H, which carry the pivot pin IE.
  • the cover member '26 is left in its normal projecting position when circular work is being seamed.
  • an upwardly extending pedestal 23 is provided to support a portion of the trimmer mechanism, as will be explained, and to assist in partially enclosing the mechanism.
  • a throat plate 2311 which complements the work supporting member [6.
  • a main operating shaft 24 extends longitudinally in a horizontal direction through the lower portion of the main housing.
  • Shaft 2 1 is formed in two sections, for assembly purposes, these having te escoping ends clamped together by screws 2406 (Fig. 2).
  • the shaft projects rom the housing at both ends. Adjacent its left end (Fig. 2) it is journalled in a bushing 25, mounted in a boss projecting from wall it, while at an intermediate point it is journalled in a bushing carried by a transverse wall '26 extending between and formed integral with the front and rear walls of the housing. Adjacent its right end, the main shaft is supported by aball bearing 2'! carried by a bushing 28 mounted in the right end wall of the housing.
  • Bushing 28 preferably has a radially extending flange at its outer end by means of which it may be secured, by screws or the like, to the wall of the housing. To the outer end of the shaft 25, which projects beyond the bushing 28, there is secured a combined handwheel and pulley 23.
  • the stitch-forming'instrumentalities include a curved needle 3-3 which, as best shown in Fi 5, is carried by a head 3! at the upper end of The latter is journalled in a bushing 34 which extends through the wall l i of the housing.
  • a split sleeve 3.5 (Fig. '8) is secured to the shaft 33, this sleeve having a forwardly projecting arm 36 which is pivotally connected with a pitman 3'! having, at its lower end, a strap 38 cooperating with a cylindrical crank portion 39 of the main shaft 2 5.
  • This arrangement is such that upon rotation of the shaft 24, the shaft 33 will be rocked to carry the curved needle from the position indicated in Fig. 5 to a position in which the eye of the needle is beneath the work support and in the path of an under looper now to be described.
  • an under looper 4! (Fig. 2), of generally U-shaped form at its active end and provided with a thread carrying eye, is secured by a set screw M to the outer end of a reciprocating, shaft-like rod $2.
  • This rod is mounted for longitudinal sliding movement in a bushing 43 carried by the wall it of the housing and a bushing l i carried by the intermediate wall 26. Between the bushings t3 and it there is secured to the rod a block t5 (Figs.
  • An overedge looper 58 (Fig. 2), which may also be provided with a thread carrying eye, is secured in any suitable way to a shaft-like rod 59 which is adapted 'to receive both oscillatory and reciprocatory movements.
  • the thread carrying looper may, if desired, be replaced by a forked spreader 58a adapted to be secured to the oscillatory and reciprocatory rod 59.
  • the under looper ill may be replaced, if desired, by a spreader having a forked end, like that of the element 58a, in which case the overedge member should be a thread carrying looper.
  • the coordinated operation of the stitch-forming elements will be hereinafter described in relation to Fig. 11.
  • the rod 59 is supported by a bushing Eli, carried by the wall M of the housing, and b another bushing 6i carried by the wall 26 (Figs. 2 and 4).
  • a crank arm 82 For imparting oscillatory movements to the rod, its inner end is provided with a crank arm 82 from which projects a ball pin 63 cooperating with a strap 6 at the upper end of a pitinan 65.
  • the lower end of this pitman carries a strap 66 cooperating with a spherical eccentric portion 6"! of the main shaft 2t.
  • Fig. 11 there is indicated the relative timing of the three stitch forming instrum'entalities, i. e., curved needle 38, under looper it, and overedge looper 58.
  • the numbered positions indicated for the points of these three elements correspond with 30 increments of rotation of the main shaft.
  • the three elements are illustrated in their number 9 positions, in which the curved needle has passed well below the work and is approaching the lower end of its stroke.
  • the under-looper is at the extreme left hand end of its stroke and the overedge looper is being retracted from a position above the work to one beneath it.
  • the under looper will start its movement toward the right and it will continue such movement during most of the return stroke of the needle.
  • This cycle will be repeated continuously during the operation of the machine to form a threethread overedge line of stitching. It is understood, of course, that the work will be advanced between successive stitches by the mechanism to be hereinafter described.
  • a two-threadoveredge stitch may be formed by substituting a spreader for one or the other of the loopers 40 and 58. If a spreader, which is in effect a looper with a thread engaging fork instead of a thread carrying eye, is substituted for the under looper. this will pickup the loop of the needle thread and carry it into the path of the overedge looper, so that the latter with its thread will pass. through the loop of the needle thread. Otherwise the operation is the same as in the formation of a three-thread stitch.
  • the forked end of this spreader will merely seize the thread of the under looper, when the latter is between the 1 and 2 positions, and will carry the under looper thread upwardly and over the work into the path of the needle which will then pass its thread through the loop of under looper thread.
  • Feed dog 86 is secured by a screw 86a to the forward end of a main feed bar 88 which is forked at its rearward end to straddle a square block 89 rockably mounted on a fixed shaft 90 carried by the main frame. At its forward end the feed bar 88 is also forked to straddle a square block '9! (Fig. 2) mounted on an eccentric portion of the main shaft 24.
  • eccentrics 93 and 99 are preferably .in the form of small annular members which may be freely applied to or removed from the shaft 2%., but are suitably keyed thereto ina predeterminedangular position. They may be removed and replaced upon the simple removal of. the nut 34.
  • a presser foot $2 For holding the work against the throat plate, and cooperating with the feed dogs in advancing the work along the line :of stitching, is a presser foot $2.
  • This may be of any suitable form, but in the preferred embodiment is of the type shown in Fig; 1-0. It is pivotally mounted by means of a pin IE3 at the lower end of a downwardly curved, horizontally disposed presser bar or arm IM. Pin I03 has screwthreaded engagement with an opening in "the presser bar to retain the foot thereon.
  • Bar N34 is secured, by s rews IBM, to a short forwardly extending arm IE (Figs. 4. and '5) integral with a yoke I65 pivotally mounted on a pin IN.
  • the latter is carried by a member 198 which fits between two branches of the yoke tilt and has an integral split collar Hi9 by means of which it is secured to a rock shaft I It mounted in suitable hearings in lugs I H and H2 extending rearwardly from the main frame.
  • An arm H3 is freely mounted on the shaft MG and is normally urged upwardly 4) or in a clockwise direction (Fig. 5) by a spring I'M.
  • the hublike portion of the arm I i3 which surrounds the shaft I Iii has a downward extension H5 adapted to cooperate with the end of a set screw H5 mounted in a downwardly and laterally extending arm N1 of the collar H19.
  • a yoke I I8 is arranged to straddle the presser bar at an intermediate point. yoke is carried at the lower end of a rod I I9 slidably mounted in a sleeve I which is, in turn, slidably mounted in a log IZI extending outwardly from the wall 44 of the irame. A pin l22 extending inwardly into the path of the sleeve 4-20,
  • this spring cooperates with the shoulder provided by the enlarged lower portion of the rod, while the upper end cooperates with a washer I26 carried at the upper end of a bore within a screw threaded member it? which has threaded engagement with the sleeve i28.
  • a washer I26 carried at the upper end of a bore within a screw threaded member it? which has threaded engagement with the sleeve i28.
  • the tension on the spring I25 may be fully released and the yolze its may then be readily disengaged from the presser bar I04. This will permit the latter to be swung outwardly about the pivot pin I81 through any desired angle, up to about
  • the presser foot I02 is thus carried away from the throat plate and threading of the loopers is facilitated. Also, the throat plate may then be readily removed for inspection and adjustment of the parts beneath it.
  • the presser foot is preferably provided with a stitch finger I30 which extends over a recess or cut-out IS! in one side of the presser foot adjacent the point of stitch formation.
  • the stitch finger is preferably made adjustable transversely of the presser foot. For this purpose it is formed on a member 132 having an elongated slot I33 cooperating with the shank of'a screw I34.
  • Member I32 is of U-shaped form at its outer end to accommodate the blades of the trimming mechanism now to be described.
  • a stationary blade I35 is suitably mounted-in an inclined position in a plane parallel with the line of stitching, on an adjustable block I36 carried by the pedestal 23.
  • the blade I35 may be clamped in the block in any suitable way as by means of a bolt 131 extending through the block and having an enlarged slotted head at its outer end which holds the blade against the face of the block.
  • a not I38 holds the bolt in clamping position.
  • Block I38 is mounted for adjustment in a direction transverse to the line of stitching by supporting the same in a groove or rectangular recess formed in the forward face of the pedestal (Fig. 5).
  • a guide plate I39 secured by a screw M0 to the forward face .of the pedestal, serves to assist in retaining the block in the recess.
  • a screw MI serves to clamp the block in any position desired. Adjustment of the block may be effected, when the clamping screw MI is loosened, .by turning an adjusting screw I43, the enlarged head of which engages the end of the block and the shank of which is threaded into a suitable Opening i the pedestal 23. It will be apparent that the means described will permit admain shaft 24, adjacent the bearing 21. be noted from Fig. 2 that the disc I64 is the.
  • the vertical position of the blade may be adjusted by loosening the clamping means I31, I38.
  • a movable blade I44 (Figs. 1, 4 and which is preferably substantially L-shaped in cross-section.
  • the cross-section of the blade is best shown in Fig. 4. mounted in an inclined groove provided in the outer face of a block I45 and a corresponding inclined groove in a collar I46.
  • the block and collar are mounted on a head I41 at the outer end of an arm I48.
  • a screw I49 (Fig. 1) serves to'clamp the collar I46 and block I45 to the head. Screw I49, for this purpose, cooperates with a nut I50 mounted in a channel provided in the head I41.
  • Thischannel (Fig. 5) extends This blade is adjustablyv in a direction transverse to the line of stitching.
  • Block I preferably has an inward extension I5I cooperating with a guide slot in the forward face of the head I41. This guide slot is parallel with the channel and may extend into the latter.
  • the arrangement. is such that upon the loosening of the screw I49 the Tightening of the screw serves to retain the with a fine mist or spray.
  • Suitable downwardly extending projections may be provided on the cover I2, if desired, to facilitate such delivery of the lubricant to special points. Openings may be provided in the tops of the various sleeves, bearings, and the like to permit the lubricant to reach the pins or shafts about which relative rotation takes place.
  • wicking I61 is preferably extended along the upper surface of the pitman parts in adjusted position.
  • a body of lubricant I63 (Fig. 2) is provided and this is adapted to be whipped into a fine mist or spray by a disc I64 having a hub I65 clamped to the It will only part of the mechanism within the housing which dips into the oil. This makes for quick starting of the machine, since 'the only resistance to turning of the main shaft, so far tional resistance between the lubricant and the I relatively smooth faces of the disc. I The latter,
  • Wicking I68 may be extended in the opposite direction to supply lubricant to the rear bearing surfaces of the block 89. Suitable openings may be provided in the various members to enable delivery of adequate lubricant to the several bearing surfaces.
  • Excess lubricant dripping from the work feeding mechanism accumulates in a sump formed beneath the latter and is returned to the main supply within the housing, by gravity.
  • a screen I69 and a felt filtering member I15 are provided at the bottom of the lubricant collecting sump to remove particles of lint, filler, and the like from the lubricant before it is returned, through a passage I1I in the extension I5, to the interior of the housing.
  • looper 1 should be construed as embracing both a member 7 O '-as the lubricant is concerned, is the small frichaving a thread receiving eye and one having a loop engaging end serving as a spreader.
  • stitch forming elements including a needle, an
  • a plurality of stitch forming elements including a needle, an under looper and an overedge element, each of said elements having a thread engaging portion, a plurality of constantly parallel shaft-like members each carrying one of said elements in fixed relation thereto, a main drive shaft parallel with said plurality of members, and connections from saiddrive shaft to said element carrying members for operating said elements in properly timed relation to effect overedge stitching, said connections being arranged to impart tothe thread engaging portion of one of said elements a movement having a component transverse to. and a component parallel with the axis or the related shaft-like member.
  • a plurality of stitch forming elements including a needle, an under looper and an overedge element, a plurality of parallel shaft-like members each carrying one of said elements in fixed relation thereto, a main drive shaft and connections from said drive shaft to said element carrying members for operating said elements in properly timed relation to effect overedge stitching, said connections being arranged'to impart to one of said element carrying members oscillatory movements only and to another of said members reciprocatory movements only and to another of said members combined oscillatory and reciprocatory movements about and along a fixed axis.
  • a plurality of stitch forming elements including a needle, an underlooper and an overedge element, a plurality of parallel shaft-like members each carrying one of said elements in fixed relation thereto, a main drive shaft, and connections from said drive shaft to said element carrying members for operating saidelements in properly timed relation to efiect overedge stitching, said connections being arranged to impart to the needle carrying member oscillatory movements only and to said under looper'carrying member reciprocatory movements only and to said overedge looper carrying member combined oscillatory and reciprocatory movements about and along a fixed axis.
  • a plurality of stitch forming elements including a needle, an under looper and an overedge element, each of said elements having a thread engaging portion, a plurality of parallel shaft-like members each carrying one of said elements in fixed relation thereto, means for trimming the edge of the work adjacent the point of stitch formation, said means comprising a movable trimmer blade, a shaft parallel with said shaft-like members for operating said movable trimmer blade, a main drive shaft, and connections from said drive shaft to said element carrying members for operating.
  • connections being arranged to impart to the thread engaging portion of one of said elements a movement having a component transverse to and a component parallel with the axis of the related shaft-like member,
  • a pl lity of stitch forming elements including a needle,- an under looper and an ovcredge element, a plurality of shaft-like members each carrying oncof said elements in' fixed relation thereto, the vertical planes containing the axes of said members being in parallel relation to eachother, a main drive shaft parallel with all of said vertical planes, said drive shaft havinga plurality of eccentric-means thereon, and connections from said' eccentric means on said drive shait to said element carry ing.
  • a plurality of stitch forming elements including a needle, an under looper and an overedge elemenma plu-r rality of constantly parallel shait'elike members each carrying one of said elementsin fixedrce lation.
  • man overedge sewing machine aplurality or stitch forming elementsiinoluding a needle; an under looper and an overedge element, a plurrality of constantly parallel shaftelike members each carrying one of said elements in fixed'relaition thereto, a main drive shaft, and connections from said drive shait to said element carrying members for operating saidelements in properly timed relation to-efieot overedge stitching; said connections being arranged to.
  • An overedge loopermechanism - comprising a looper carrying rod mounted for axial reoiprocation and for oscillation along and about a' fixed axis, a main drive shaft parallel with sald' looper carrying rod, a plurality of eccentric means. on said drive shaft,- connections from: one of said eccentric means to said looper carrying rod for oscillating the same; andconnectlons-irom'anotherofsaid eccentric means to said looper carrying rod for. reciprocating thessame.
  • An overedee looper mechanism comprising aloopen carryin r d-m unted ql" ax al 'lfiGiDlQ- cation a d. or lla on alone an a out a fixed axis,a main drive shaft. parallel with said looper c rryin ro a plurality of cc tri m nson sa d. d ive af nnecti ns from. ne 0i said ecc ntric means to said.
  • An overedge looper mechanism comprising a looper carrying rod mounted for axial reciprocation and for oscillation along and about a fixed axis, a main drive shaft parallel with said looper carryingrod, a plurality of eccentric means on said drive shaft, connections from one of said eccentric means to said looper carrying rod for oscillating the same, and connections from another of said eccentric means to .said looper carrying rod for reciprocating the same, said last mentioned connections including a toggle arranged to produce more rapid axial movement of said rod toward one end of its stroke than toward the other end.
  • An overedge looper mechanism comprising a looper carrying rod mounted for axial reciprocation and for oscillation along and about a fixed axis, a main drive shaft parallel with said looper carrying rod, a plurality of eccentric means on said drive shaft, connections from one of said eccentric means to said looper carrying rod for oscillating the same, and connections from another of said eccentric means to said looper carrying rod for reciprocating the same, said connections being such as to provide for .reversal of direction of the oscillatory and reciprocatory movements at substantially the same time and to cause said looper to traverse substantially the same path in both directions.
  • An overedger comprising a frame having an enclosed, lubricant-tight housing, a main drive shaft extending through said housing and projecting therefrom at both ends, means mounted on one end of said shaft for driving the same, stitch-forming means comprising a needle, an underlooper and an overedge looper outside of said housing, a plurality of shaft-like members extending through a wall of said housing, each of said plurality of members being connected in fixed relation to one of said stitch forming means, and connections within said housing from said drive shaft to each of said plurality of members for imparting stitch-forming movements to said means.
  • An overedger comprising a frame having an enclosed, lubricant-tight housing, a main drive shaft extending through said housing and projecting therefrom at both ends, means mounted on one end of said shaft for driving the same, stitch-forming means comprising a needle, an under-looper and an overedge looper outside of said housing, a plurality of shaft-like members extending through a wall of said housmg, each of said plurality of members being connected in fixed relation to one of said stitch forming means, and connections within said housing from said drive shaft to each of said plurality of members for imparting stitch-forming movements to said members, said connections being arranged to impart bodily reciprocation to said needle and underlooper and a combined oscillation and bodily reciprocation to said overedge looper.
  • An overedger comprising a frame having an enclosed, lubricant-tight housing, a main drive shaft extending through said housing and projecting therefrom at both ends, means mounted on one end of said shaft for driving the same, stitch-forming means comprising a needle, an underlooper and an overedge looper outside of said housing, a plurality of shaft-like members extending through a wall of said housing, each of said plurality of members being connected-in fixed.
  • said stitch forming means and connections within said housing from said drive shaft to each of said plurality of members for imparting stitch-forming movements to said members, said connections being arranged to impart bodily reciprocation to said needle and underlooper and a combined oscillation and bodily reciprocation to said overedge looper, the bodily movement of said overedge looper being more.v rapid toward one end of its stroke than toward the other. 16.
  • An overedger comprising a frame having an enclosed, lubricant-tight housing, a main drive shaft extending through said housing and projecting therefrom at both ends, means mounted on one end of said shaft for driving the same, stitch-forming means comprising a needle, an underlooper and an overedge looper outside of said housing, work trimming mechanism including a movable trimmer blade adjacent the point of stitch formation, a plurality of shaftlike members extending through a Wall of said housing, each of said plurality of members being connected in fixed relation to one of said stitch forming means and movable trimmer blade, and connections within said housing from said drive shaft to each of said plurality of members for imparting stitch-forming movements to said means and work trimming movement to said trimmer blade.
  • an overedge sewing machine a needle reciprocated in a vertical plane containing the line of seam formation, an under looper, a rod carrying said looper and mounted for longitudinal reciprocation in a direction perpendicular to said plane, an overedge looper, a rod carrying said overedge looper and mounted for longitudinal reciprocation in a direction perpendicular to said plane and for oscillation about its axis, said overedge looper carrying rod being disposed above and in rear of said under looper carrying rod, a main drive shaft, and connections from said shaft for operating said needle and said rods in coordinated relation to effect overedge stitch formation.
  • an overedge sewing machine having a horizontally disposed throat plate, a needle reciprocated in a vertical plane containing the line of seam formation, an under looper, a rod carrying said looper and mounted for longitudinal reciprocation in a direction perpendicular to said plane, an overedge looper, a rod carrying said overedge looper and mounted for longitudinal reciprocation in a direction perpendicular to said plane and for oscillation about its axis, said overedge looper carrying rod being disposed above said throat plate, a main drive shaft, and connections from said shaft for operating said needle and said rods in coordinated relation to eifect overedge stitch formation.
  • a needle reciprocated in a vertical plane containing the line of scam formation, an under looper, a rod carrying said looper and mounted for longitudinal reciprocation in a direction perpendicular to said plane, an overedge looper, a rod carrying said overedge looper and mounted for longitudinal reciprocation in a direction perpendicular to said plane and for oscillation about its axis, a main drive shaft, and connections from said shaft for operating said needle and said rods in coordinated relation to effect overedge stitch formation, said connections being all disposed at one side of said vertical plane.

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  • Textile Engineering (AREA)
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US122204A 1949-10-19 1949-10-19 Overedge sewing machine Expired - Lifetime US2636462A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US122204A US2636462A (en) 1949-10-19 1949-10-19 Overedge sewing machine
FR1004003D FR1004003A (fr) 1949-10-19 1949-12-21 Machine à coudre à surjeter
DEU102A DE822186C (de) 1949-10-19 1950-01-24 UEberwendlichnaehmaschine
CH292758D CH292758A (fr) 1949-10-19 1950-04-25 Machine à coudre à surjeter.
GB13554/50A GB672098A (en) 1949-10-19 1950-05-31 Improvements in overedge sewing machines

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Application Number Priority Date Filing Date Title
US122204A US2636462A (en) 1949-10-19 1949-10-19 Overedge sewing machine

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US2636462A true US2636462A (en) 1953-04-28

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US122204A Expired - Lifetime US2636462A (en) 1949-10-19 1949-10-19 Overedge sewing machine

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US (1) US2636462A (de)
CH (1) CH292758A (de)
DE (1) DE822186C (de)
FR (1) FR1004003A (de)
GB (1) GB672098A (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3009430A (en) * 1955-03-12 1961-11-21 Union Special Maschinenfab Overedge sewing machines
US3068819A (en) * 1958-10-21 1962-12-18 Rothenborg Specialmaskiner For Chain cutting apparatus
US3079879A (en) * 1959-11-30 1963-03-05 Man Sew Corp Overedge sewing machines
US3776157A (en) * 1972-04-18 1973-12-04 Union Special Machine Co Flat stitch forming and cover thread laying mechanisms for sewing machines
US4373460A (en) * 1978-04-26 1983-02-15 Union Special Corporation Sewing machine loopers
EP0243519A2 (de) * 1986-04-29 1987-11-04 Jaguar Co., Ltd. Übernahtnähmaschine
CN114803932A (zh) * 2022-04-13 2022-07-29 重庆开放大学重庆工商职业学院 一种汽车检测与维修智能控制装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE966917C (de) * 1951-11-23 1957-09-19 Otto Hess Hochtourige Naehmaschine
DE1096729B (de) * 1957-10-02 1961-01-05 Union Special Machine Co Kettenstich- und UEberwendlichnaehmaschine
BE643240A (de) * 1964-01-31 1964-05-15
DE4325387A1 (de) * 1992-08-07 1994-02-10 Union Special Corp Überwendlichstich-Nähvorrichtung
CN109943985B (zh) * 2019-01-29 2024-05-17 安徽杰羽制鞋机械科技有限公司 一种缝纫机下滚轮送料换向机构

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2156536A (en) * 1937-03-02 1939-05-02 Union Special Maschinenfab Sewing machine
US2238796A (en) * 1939-06-10 1941-04-15 Singer Mfg Co Overedge sewing machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2156536A (en) * 1937-03-02 1939-05-02 Union Special Maschinenfab Sewing machine
US2238796A (en) * 1939-06-10 1941-04-15 Singer Mfg Co Overedge sewing machine

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3009430A (en) * 1955-03-12 1961-11-21 Union Special Maschinenfab Overedge sewing machines
US3068819A (en) * 1958-10-21 1962-12-18 Rothenborg Specialmaskiner For Chain cutting apparatus
US3079879A (en) * 1959-11-30 1963-03-05 Man Sew Corp Overedge sewing machines
US3776157A (en) * 1972-04-18 1973-12-04 Union Special Machine Co Flat stitch forming and cover thread laying mechanisms for sewing machines
US4373460A (en) * 1978-04-26 1983-02-15 Union Special Corporation Sewing machine loopers
EP0243519A2 (de) * 1986-04-29 1987-11-04 Jaguar Co., Ltd. Übernahtnähmaschine
EP0243519A3 (en) * 1986-04-29 1988-01-13 Maruzen Sewing Machine Co. Ltd Overlock machine
CN114803932A (zh) * 2022-04-13 2022-07-29 重庆开放大学重庆工商职业学院 一种汽车检测与维修智能控制装置
CN114803932B (zh) * 2022-04-13 2023-10-31 重庆开放大学重庆工商职业学院 一种汽车检测与维修智能控制装置

Also Published As

Publication number Publication date
DE822186C (de) 1951-11-22
CH292758A (fr) 1953-08-31
FR1004003A (fr) 1952-03-25
GB672098A (en) 1952-05-14

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