US2410679A - Sewing machine - Google Patents

Sewing machine Download PDF

Info

Publication number
US2410679A
US2410679A US520836A US52083644A US2410679A US 2410679 A US2410679 A US 2410679A US 520836 A US520836 A US 520836A US 52083644 A US52083644 A US 52083644A US 2410679 A US2410679 A US 2410679A
Authority
US
United States
Prior art keywords
loop
looper
needle
machine
spreader
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US520836A
Other languages
English (en)
Inventor
Joseph H Pikul
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.)
Reece Corp
Original Assignee
Reece Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Reece Corp filed Critical Reece Corp
Priority to US520836A priority Critical patent/US2410679A/en
Application granted granted Critical
Publication of US2410679A publication Critical patent/US2410679A/en
Priority to GB22016/47A priority patent/GB637819A/en
Priority to FR961360D priority patent/FR961360A/fr
Priority to DER699A priority patent/DE831186C/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B3/00—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing
    • D05B3/12—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing for fastening articles by sewing
    • D05B3/20—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing for fastening articles by sewing labels
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B3/00—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing
    • D05B3/12—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing for fastening articles by sewing
    • D05B3/14—Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing for fastening articles by sewing perforated or press buttons
    • 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
    • D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2303/00—Applied objects or articles
    • D05D2303/20—Small textile objects e.g., labels, beltloops

Definitions

  • This invention relates to sewing machines and more particularly to machines employing a pair of loopers for the formation of a group of stitches.
  • Machines of this general type are described, for example, in my prior Patent No. 2,131,387, dated September 27, 1938, and in the patent to Avis, No. 2,158,171, dated May 16, 1939.
  • the machines described in the above patents are adapted to attach buttons having perforations or holes through which stitches are formed, and the two loopers in each of these machines are together oscillated and normally cooperate alternately with a reciprocating needle in the formation of successive attaching stitches through a pair of holes in a button, said loopers coopera ing respectively with the needle on alternate ree ciprocations of the latter through the spaced holes.
  • one or the other of the loopers seizes each thread loop cast by the needle on its ascent after descending through one hole in the button, and deflects and positions the same loop for entry by the needle on its next descent through the other hole in the button.
  • the needle In the formation of a tying stitch, after the formation of a group of attaching stitches, the needle is conventionally passed twice through the same hole in the button, and when this occurs the normal operation of the loopers would cause one looper to seize and deflect a thread loop cast by the needle after its first passage through said hole and prior to its second descent through the same hole, so that such loop would obviously be deflected out of the path of the needle and, hence, would not be entered by the latter on its second reciprocation.
  • Fig. 1 is a longitudinal section through a sewing machine embodying the present invention.
  • Fig. 2 is a plan View of certain needle-operating mechanism of themachine.
  • Fig. 3 is a fragmentary plan view, partly in section, of certain looper-op'erating mechanism of the machine.
  • Fig. 3a is a fragmentary section taken on the line 3a3a of Fig. 1.
  • Fig. 3b is a fragmentary section taken on the line 3b -3b of Fig. 1.
  • Fig. 3c is a fragmentary section through the stop mechanism of the machine substantially along the line .'ic3c of Fig. 32).
  • Fig. 311 is a section similar to Fig, 3c, showing the stop mechanism in a different position of operation.
  • Fig. 4 is a front elevation of the same looper operating mechanism, drawn to a larger scale.
  • Fig. la is a view similar to Fig. 4 showing certain operating elements in a different relative cooperative position, however.
  • Fig. 41 illustrates in an exaggerated manner the development of one of the cam grooves in the main cam of the machine.
  • Fig. 5 is a section taken on the line 5-5 of Fig. 1.
  • Fig. 6 is an enlarged, fragmentary top View of the throat plate of the machine, carrying certain loop-arrester plates on its bottom side.
  • Fig. 6a is a section taken on the line id-5a of Fig. 6.
  • Fig. 7 is a section taken on the line of Fig.6.
  • Figs. 8 to 14, inclusive are fragmentary front elevations, partly in section, of the stitch-forming mechanism of the machine, showing progressive steps in the operation of the same.
  • Fig. 14a perspectively illustrates the last step in the formation of a tying stitch.
  • Figs. 15 and 16 are enlarged sections taken on the lines I
  • Fig. 17 perspectively illustrates the function of the loop-arrester plates shown in Figs. 6 and 7.
  • Fig. 18 is a plan view of a two-hole button attached to work by the present machine.
  • Figs. 19, 20 and 21 illustrate several conditions of a freely suspended thread loop.
  • Figs. 22 and 23 illustrate another example of sewing work which may advantageously be performed by a machine embodying the present invention.
  • Figs. 24 to 32, inclusive illustrate progressive operative steps of stitch-forming mechanisms in performing the sewing work illustrated in Figs. 22 and 23.
  • the frame of the machine comprises a bed I 0, an overhanging head II, and a neck i2 joining the two.
  • the bed l0 carries a work plate I3 upon which the fabric W, to which a button B is to be attached, is supported.
  • Button-holding and work-clamping means is generally indicated at A.
  • the stitch-forming instrumentalities include an eye-pointed needle 20,' carried by a needle bar 2
  • is guided at its lower end in a bearing 23, mounted by means of a universal joint 24 on the front end of a carrier alternately through the holes a and b of the button B, by mechanism comprising a link 33 (see also Fig. 2) having a pin or stud 34 projecting downwardly into a longitudinally disposed Way 35 in the upper face of the carrier 25.
  • a link 33 (see also Fig. 2) having a pin or stud 34 projecting downwardly into a longitudinally disposed Way 35 in the upper face of the carrier 25.
  • An upwardly projecting portion of the pin 34 is received in a way 35 in a head 31, having a shank 38 mounted in a bracket 39
  • the way 3.6 extends transversely to the carrier 25 and longitudinally to the link 33 as shown in dot-and-dash lines in Fig. 2.
  • the opposite end of the link 33 is provided with a stud 39 which is adjustably positioned in an arcuate slot 40 in one arm of a lever 4
  • carries a follower 43 which cooperates with a cam groove 45 in the upper face of a main cam 46, fast on a vertical cam shaft 41 which is driven from the shaft 29 by worm gearing as shown in Fig. 2.
  • the main cam 46 is also provided with a cam groove 49 which, through linkage to be described hereinafter, controls the operation of the looper mechanism 22 so that the same operates in timed relation with the needle Zlhboth with respect to stitch-forming and with respect 1 to lateral movements during a sewing operation.
  • is guided at its upper end in a bearing 26, mounted by means of a universal joint 2'! in the head II.
  • is reciprocated in its bearings 23 and 26 through suitable connections, generally indicated at 28, from a shaft 29 which is suitably journalled in the head H and to which power is applied under the control of suitable stop mechanism described hereinafter.
  • the carrier 25 is oscillated laterally during successive descents of the needle 28, except during the last two descents of the same, so that the needle will pass alternately through the holes a and b in the button to form a series of attaching stitches s through said holes, and then twice through the same hole in the button to form a tying stitch.
  • the carrier member 25 for the lower needle bar guide 23 is longitudially slidable in a guide groove in a head 30, having a shank 3
  • the carrier 25 is, therefore, free to move longitudinally in the head 39 or to oscillate laterally with said head about the pivot axis of the latter.
  • the carrier 25 is oscillated about the pivot axis of the head 30 to cause the needle to pass
  • the looper mechanism 22 comprises a looper block 50 (Figs. 1 and 4), clamped at 51 to a looper shaft 52 which is iournalled in sleeves 53 and 54 that are, in turn, journalled in bearings 55 and 56, respectively, provided by the machine frame.
  • the looper block 52 carries a pair of loopers 57 and 58 and cooperating loop spreaders 59 and 58 (see also Fig. 15).
  • the loop spreaders 59 and 60 are pivotally mounted at BI and 62 respectively, in the looper block 53 and are provided with tails or followers 63 and 64, respectively, which cooperate with a cam plate 65.
  • the cam plate 65 is firmly mounted on the sleeve 53 (Fig. 1).
  • the upwardly bent ends of a suitably mounted torsion spring 56 on the looper block 50 engage the loop spreaders 59 and 68 in the manner shown in Figs. 10 and 15, and normally urge them into closing engagement with their respective loopers 5i and 58, while leaf springs 61 and 68 normally prevent axial removal of the loop spreaders 59 and 63 from the looper block 56.
  • is provided intermediate its ends with an annular recess 69, receiving a parted collar 'a'IJ which, to gether with the looper block 50, prevent axial movement of the sleeve 53 relative to the looper shaft 52.
  • a nut 'II on one end of the other sleeve 54 retains an annular shoulder 12 thereof in engagement with the bearing 56, thus preventing axial movement of said sleeve.
  • Journalled on the. looper shaft 52 is another sleeve 73 which is held axially immovable thereon by means of a collar 13' which is clamped to the looper shaft and straddled at 14 by said sleeve in the manner parting such oscillation to the sleeve l3.
  • the sleeve 13 is also provided with an annularly recessed portion '18 which extends over the parted collar 'lll and holds the same in place.
  • the recessed portion 7 8 of the sleeve .13 receives two opposite set screws 19 and 8% (Fig. which engage machined shoulders 8i and $32, respectively, on the sleeve 53.
  • the sleeve 53 and the cam plate thereon are also held .against rotation with the looper shaft 52, and may be angularly adjusted on the latter by .rnanipulating the set screws 19 and 80.
  • Clamped at 83 to the looper shaft 52 is one member 84 of a slider coupling, the other, cooperating member 85 of which is provided by the adjacent end of the sleeve '54 (Figs. 1 and 3).
  • the sleeve Ed is provided with spaced lateral arms 86 (Figs. 3 and 4) which are connected by a link 81 with one end of a rocker 88, pivotally mounted at 89 to the machine frame and carrying a follower 90 which cooperates with the previously mentioned cam groove 49 in the main cam '46.
  • the cam groove l! is designed to impart to the looper shaft 52 and the looper block 59 thereon the oscillations requisite in the formation of a roup of (attachin and tying) stitches through cessiye descents of the needle 2.8 to cause the latter to pass alternately through one pair of holes in the button so as to form, in conjunction with the looper mechanism 22, a groupof stitches through said one pair of holes, whereupon the carrier '25 and the looper shaft .52 are shifted longitudinally, or in a direction fore and aft, of the machine, to bring the needle and the looper mechanism into position to form another group of stitches through the other pair .of holes .in the button.
  • a linkage (not shown) is provided which, under the control of the main cam 46, shifts the carrier 25 longitudinally of the machine at the proper time.
  • This linkage may be of the same construction as that shown and described in the copending application of Franklin A.Reece, Serial No. 486,187, filed May 8, .1943 and the ,same is adjustable so that the extentof the longitudinal movement of the carrier 25 may be .adjusted to varying spacing of the two pairs of holes .in a
  • the machine is driven from any suitable power source through belt I50 which passes over a :belt pulley'I5I on the shaft.29 (Fig. 1).
  • the belt pulley I5I is loose onthe shaft 29 and is adapted to be drivingly connected therewith by a combined clutch and stop mechanism which, as herein shown, is similar to that shown and described in the patent to Reece et al. No. 2,134,417, October 25, 1938. Referring to Figs.
  • said mechanism includes a ring I52 carried by the pulley I5I and having a pin 1 53 which projects through a slot I54 in said pulley and is en gaged by a spring I55, located in a recess in-said pulley, whereby said ring is permitted .a limited yielding angular movement with respect to .the pulley in order to cushion the shock of starting.
  • the ring I52 has a shoulder I58 (Figs. 3c and 3d) adapted to be engaged by a clutch clog I51, pivoted at I58 to a hub I59 (Fig. 3b) which is keyed to the shaft 29 and normally urged into engagement with said shoulder by a spring I60 connecting said dog with an arm is!
  • the dog I5? is formed with a stop finger I62 adapted, when the connected parts are rotated in the'direction of the arrow in Fig. 30, to engage and depress laterally extendin head I630; of a rod i63, slidable in a stop arm I64, when the latter is in the position shown in Figs. 3c and 3d and also in dot-and-dash lines in Fig. 1,, thereby disengaging the dog i577 from the shoulder I 56 i as shown in Fig. .312 and stopping the rotation of the shaft '29.
  • a spring urged plunger IBM in the stop arm I86 bears against the head i fita of is disengaged.
  • a pin iii ib on the spring-urged plunger 54a projects into an elongated slot I640 in the stop arm I84 to limit the outward movement of said plunger lt-la.
  • Upward movement of the rod I63 beyond the position shown in full lines in Fig. 1 is prevented by a cross-pin I532) in said rod which engages the stop arm in the manner shown in Fig. 1. Recoil of the shaft 29 under the influence of the spring-urged plunger i Eta is prevented by means not shown herein but fully disclosed in said patent to Reece et al. No. 2,134,417.
  • the stop arm led is firmly mounted on a rock shaft I 55, journalled in a bracket E65 in the neck I2 of the machine and having secured thereto at the outside of the machine frame an arm I51 (Fig. 3a) connected by a chain E68 with a suitable treadle (not shown) said arm being preferably provided with a spring-pressed positioning plunger i i! adapted to register with either one of two spaced depressions (one being shown at lit in Fig. 3a) in the outer wall of the machine frame, thereby releasably retaining the stop arm I5 3 in either of the two positions shown in Fig. 1.
  • the stud I16 is preferably notched at I11 (Fig. 3a) so that the slight over travel of the parts incidental to stopping the machine will bring said notch opposite the end of the hunter I12 in order to permit the machine to be again started by operation of the treadle.
  • the stud I13 which is manually turnable, is flattened at its end as at I18.
  • the hunter I12 rests on the periphery of the stud I13 and is thereby held in the path of movement of the stud I16 on the main cam 46.
  • the machine will be stopped at the completion of each single group of stitches, i. e. after each complete revo lution of the main cam 45.
  • the entry by the needle 20 of the last thread loop 1 in the formation of a group of attaching stitches through the holes a and b in the button B is illustrated in Fig. 8.
  • the loopers 51, 58 and their respective loop spreaders perform their normal function
  • the looper 51 and loop spreader 59 seizing and spreading all loops cast by the needle on ascending through the hole a in the button and deflecting them into the path of the needle for entry by the same on descending through the hole b in the button
  • the looper 58 and loop spreader 50 seizing and spreading all loops cast by the needle on ascending through the hole I) in the button and deflecting them into the path of the needle for entry by the same on descending through the hole a in the button.
  • the looper block 50 is, under the control of the portion 49a (Fig. 4b) of the cam groove 49 in the main cam 46, rocked into the position shown in- Fig. 9 so as to release from the looper 58 and spreader 60 the loop Z which is accordingly cast about the needle and subsequently drawn up against the work W by a conventional take-up (not shown) when the needle clears the work on its following ascent. On said following ascent, the needle leaves behind a thread loop le.
  • the looper block 50 is, in accordance with its normal operation and under the control of the cam groove portion 49b in the main cam 46, swung or rocked from the position shown in Fig. 9 into the position shown in Fig. 10, so that the looper 51 and loop. spreader 59 seize and spread the loop .l and deflect the same as illustrated in Figs. 4a and 10.
  • the needle under the control of the cam groove in the main cam 46, passes again through the same hole a in the button for the formation of a tying stitch.
  • FIG. 11 shows the momentary release of the loop Z from the looper 51 and loop spreader 59 during an abnormal counterclockwise rocking motion of the looper block 50, from the position shown in Fig. 10 into the position shown in Fig. 11, during which motion the loop spreader 59 clears the non-rotatable cam plate 65 and closes against the looper 51.
  • the looper 58 and loop spreader 60 enter the reelased loop Z, the loop spreader 60 engaging the non-rotatable or stationary cam plate and spreading the loop Z only after having entered said loop.
  • the loop Z following descents, re
  • the present invention further, preferably ineludes. provision forarresting. the releasedloop Z during, its transfer from one looper and loop spreader to. the other, looper and loop spreader.
  • a thread loopfreely suspended as the loop Z in Figs. 1-1 and 19 has, unless spun neutral, a tendency. to twist into a. disposition such as that. shown in Fig. 29, for instance, as. well as curl up or turn up, at its lower endin the fashion shown in Fig.
  • the-cam groove 49 shifts the looper blocklaterally for each reciprocationotthe needle, whereby the looper 5-! and loopspreader 5'9 seize and spread allloops castby the needle on ascending through the hole ain. the. button and. deflect them into the path of theneedlefor entry by the sameon descendingthrough the. hole bin button, and the looper 58 and: loop spreader G0; seize and.- spread all loops cast by the needle. onascendingthrough the hole bin the button and, deflect them into the path of theneedlefor entry by the same on descendingthrough the holea in the button.
  • the cutter I00 isof the. form shownsinFig. 3a and pivoted on the s.o.cket 1.6: (Fig. 1.) so. as tobe turnable. about thelatter. and movablefore and. aft of the machine together with the looper mechanism,
  • the cutter MB is also. provided with a slot I80, slidably receiving a pin l8! on a bell cranklever.
  • E82 which is pivoted at I33. to a block ISA. on the bearing provided-by the bed. lit-of themachine.
  • the bell crank lever 182 is; connected by a link I85 with an arm I8 6; on one end ofa stubsh-aft- 21.
  • notch Hi1 is sufficient efiectively ,to prevent twisting and curling of they freely suspended loop-
  • the plate lilfiis provided at its bottom side adja..
  • cent the notch lll swith arib It (Figs. 6, '7 and 17) which, by. forming a downward continuation of the, side wallv of the notch I68 engaged by thev 6a, for instance, thus leaving only a portion of the. loop to, curl up. to an insignificant extent.
  • loop-arrester plates I and IE6 can be dispensed with if the needle thread is spun neutral and the stitch-forming mechanism accurately timed for the occasion.
  • the described transfer of a thread loop from one looper and loop spreader to another looper and loop spreader, while advantageous in the attachment of a button to material, as explained, is also advantageous for other types of sewing work, for example, in the attachment of a tag I toworkW' (Fig. 22).
  • the stitch-forming mechanism employed for the tag attachment may be like that described in connection with the button sewing machine and include a reciprocatory and oscillatory needle I2 I, an oscillatory looper'block I22 with spaced loopers I23, I241 and cooperating loop spreaders I25, I26, There may also be provided a loop-arrester plate I2'I of the same construction and'function as the plate I06 in Fig. 17.
  • the needle I2I In attaching the tag I20 to the work W, the needle I2I first descends through one hole (I28, for instance) of a series of holes I28 to I3I in said tag and through the work W, whereupon the looper I23 and loop spreader I Will, during clockwise oscillation of the looper block I22 as viewed in Fig. 24, seize the thread loop Z cast by the needle and deflect said loop into the path of the needle for entry by the same on its following descent through the hole I29 in the tag.
  • the looper block I22 reverses its oscillation, thereby releasing the loop Z from the looper I23 and spreader I25 and seizing the next cast needle thread loop 2 with the looper I24 and spreader I26;
  • the loop I is in the meantime drawn up against the work W by suitable take-up mechanism (not shown), and the loop Z is deflected in the fashion shown in Fig. 25.
  • the needle then descends through the hole I28 and enters the spread and deflected loop Z whereupon the latter is, on clockwise oscillation of the looper block from the position shown in Fig. 25 into that shown in Fig. 26, released from the looper I24 and spreader I26 and drawn upagainst the work.
  • the loop 1 requires transfer from the looper I24 and spreader I26 unto the looper I23 and spreader I25 in order that said loop may be deflected into the path of the needle on its next descent.
  • the looper oscillation is reversed in order to accomplish the mentioned transfer of the loop I. (Figs. 30, 31 and 32).
  • five chain stitches s to s are formed (Figs. 22 and 23) by which the tag I28 is attached to the work W.
  • a tying stitch s may finally be formed by passing the needle twice through the hole I 29 in the tag and accordingly operating the looper mechanism I22.
  • a reciprocatory needle and two spaced loop-han-- dling devices together movable in opposite directions to cause seizure and deflection of a needle thread loop alternately by said devices and its release'from the latter between said alternate seiz 13 ures, of means to hold said released loop for seizure by the next-seizing device.
  • the combination with a reciprocatory and oscillatory needle and looper mechanism including two spaced loop-handling devices together movable in opposite directions to seize thread loops cast by the needle in its oscillatory end positions, respectively, and deflect them into the path of the needle at its other oscillatory end position, of means to move said devices in said opposite directions to cooperate with the oscillating needle in the formation of first stitches in work, and to move said devices once in said opposite directions during a repeat reciprocation
  • Y 14 mechanism including two spaced loop-handling devices together movable in opposite directions to position thread loops left behind by the needle in its oscillator end positions, respectively, for entry by the needle in its other oscillatory end position, as well as mechanism to reciprocate the needle alternately in its oscillatory end positions a number of times and then reciprocate the needle at least twice in the same oscillatory end position for the formation of chain stitches and a tying stitch, of mechanism to move said devices in said opposite directions during successive needle reciprocations, respectively, except during the repeat reciprocation of the

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US520836A 1944-02-03 1944-02-03 Sewing machine Expired - Lifetime US2410679A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US520836A US2410679A (en) 1944-02-03 1944-02-03 Sewing machine
GB22016/47A GB637819A (en) 1944-02-03 1947-08-08 Improvements in or relating to sewing machine
FR961360D FR961360A (enrdf_load_stackoverflow) 1944-02-03 1948-01-30
DER699A DE831186C (de) 1944-02-03 1950-01-03 Naehmaschine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US520836A US2410679A (en) 1944-02-03 1944-02-03 Sewing machine

Publications (1)

Publication Number Publication Date
US2410679A true US2410679A (en) 1946-11-05

Family

ID=22051457

Family Applications (1)

Application Number Title Priority Date Filing Date
US520836A Expired - Lifetime US2410679A (en) 1944-02-03 1944-02-03 Sewing machine

Country Status (4)

Country Link
US (1) US2410679A (enrdf_load_stackoverflow)
DE (1) DE831186C (enrdf_load_stackoverflow)
FR (1) FR961360A (enrdf_load_stackoverflow)
GB (1) GB637819A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4282819A (en) * 1980-03-25 1981-08-11 Kochs Adler Ag Adjustment device in a sewing machine
US4401043A (en) * 1982-08-23 1983-08-30 The Singer Company Double pointed looper actuating mechanism for chain stitch sewing machine
US4411210A (en) * 1981-12-17 1983-10-25 The Singer Company Actuating mechanism for a double pointed looper in a sewing machine
US4428312A (en) 1983-06-22 1984-01-31 The Singer Company Loop positioning arrangement for double pointed looper sewing machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106835525B (zh) * 2017-02-23 2019-08-02 湖南凯斯机械股份有限公司 一种后端为圆环凸台式结构的高精度缝纫机机头

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4282819A (en) * 1980-03-25 1981-08-11 Kochs Adler Ag Adjustment device in a sewing machine
DE3011368A1 (de) * 1980-03-25 1981-10-01 Kochs Adler Ag, 4800 Bielefeld Einstellvorrichtung fuer eine steuerkurve einer naehmaschine
US4411210A (en) * 1981-12-17 1983-10-25 The Singer Company Actuating mechanism for a double pointed looper in a sewing machine
US4401043A (en) * 1982-08-23 1983-08-30 The Singer Company Double pointed looper actuating mechanism for chain stitch sewing machine
US4428312A (en) 1983-06-22 1984-01-31 The Singer Company Loop positioning arrangement for double pointed looper sewing machine

Also Published As

Publication number Publication date
FR961360A (enrdf_load_stackoverflow) 1950-05-11
DE831186C (de) 1952-02-11
GB637819A (en) 1950-05-24

Similar Documents

Publication Publication Date Title
US3145672A (en) Overedge stitching machine
US2410679A (en) Sewing machine
US2540987A (en) Clamp raising and lowering means for sewing machines
US2211619A (en) Looper mechanism for sewing machines
US3867891A (en) Multi-needle double chain-stitch quilting machine
US2411493A (en) Buttonhole sewing machine
GB1011878A (en) Chain stitch device for lock stitch sewing machines
US1841102A (en) Thread-cutting mechanism for sewing machines
US2301797A (en) Buttonhole sewing machine
US2495069A (en) Article attaching machine
US1892895A (en) Sewing machine
US2421712A (en) Buttonhole sewing machine
US2334569A (en) Button or the like sewing machine
US2174294A (en) Buttonhole-cutter safety device for automatic buttonhole sewing machines
US1497220A (en) Attachment for sewing machines
US2014687A (en) Sewing machine
US1015967A (en) Strip folding and guiding attachment for sewing-machines.
US1369371A (en) Thread cutting and nipping mechanism for sewing-machines
US864144A (en) Buttonhole-stitching machine.
GB1108730A (en) Improvements in or relating to a sewing machine
US1962903A (en) Button or the like sewing machine
US1136388A (en) Buttonhole cutting and sewing machine.
US767539A (en) Buttonhole cutting and stitching machine.
US3012529A (en) Lock stitch sewing machines
US2188093A (en) Sewing machine