US2374721A - Sewing machine attachment - Google Patents

Sewing machine attachment Download PDF

Info

Publication number
US2374721A
US2374721A US359384A US35938440A US2374721A US 2374721 A US2374721 A US 2374721A US 359384 A US359384 A US 359384A US 35938440 A US35938440 A US 35938440A US 2374721 A US2374721 A US 2374721A
Authority
US
United States
Prior art keywords
foot
lever
pin
frame
sewing machine
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
US359384A
Other languages
English (en)
Inventor
David L Bacon
Samuel P Caldwell
William L Barmmer
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.)
Greist Manufacturing Co
Original Assignee
Greist Manufacturing Co
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 Greist Manufacturing Co filed Critical Greist Manufacturing Co
Priority to US359384A priority Critical patent/US2374721A/en
Application granted granted Critical
Publication of US2374721A publication Critical patent/US2374721A/en
Priority to FR913054D priority patent/FR913054A/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B21/00—Sewing machines with devices for automatically controlling movement of work-carrier relative to stitch-forming mechanism in order to obtain particular configuration of seam, e.g. program-controlled for sewing collars or for attaching pockets
    • D05B21/002—Sewing machines with devices for automatically controlling movement of work-carrier relative to stitch-forming mechanism in order to obtain particular configuration of seam, e.g. program-controlled for sewing collars or for attaching pockets consisting of lateral displacement of the workpieces by a feed-dog or a fluted presser foot
    • 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
    • D05D2303/08—Cordage

Definitions

  • This invention relates to sewing machine attachments, and more particularly to an attachment designed to perform what is known as a zigzag or crisscross stitching operation.
  • an attachment designed to perform what is known as a zigzag or crisscross stitching operation.
  • the device be adjustable ally after every stitching operation of the sewing machine needle, but only after certain of such if operations, for example, every alternate stitchherein described, thefeed or forwardmovement ⁇ of the cloth is obtained by the usual feed mechanism on the sewing machine andthat when the mechanism is adjusted for ne or coarse zigzag stitching, the feed of the machine will usually be correspondingly adjusted. It is also possible, with the attachment herein show-n, to adjust the tension of the thread so that one of the threads, the lower, for example, may be pulled through the cloth to show on the face thereof, and thereby make a fancy stitch.
  • One object of the invention is the provision of a sewing machine attachment for the production of zigzag or crisscross stitchings which will operate efficiently and which will be capable of a wide variety of uses.
  • Another object of the invention is the provision n make a zigzag stitch between each ofl thestitching operations ofthe sewing machine-or'between adapter or attachingl member I6, by which'the every alternate stitching operation or aplurality y of stitching operations, as desired. 4
  • a still further object of the invention is ,n the provision of 4 a sewing machine attachment for zigzag or crisscross stitching lwhich mayberelatively economical to manufacture and which, at the same time, will be efficient in operationand capableof use to effect ing operations.
  • Fig. 2 is a similar view, taken'4 from the other side of the attachment; n Fig. v3V is atop plan view of the attachment; Fig. 4 is a sectional View on lineV 4--4 of Fig.v 2; lFig. 5 isa sectional view on line .5 5 of Fig. l2; Fig. 6 is a sectionalview on line B--S of Fig.”3;
  • Fig. 7 is a lsectional .view substantially on ⁇ line ⁇ view,part ⁇ ly ⁇ in sec- Fig. 10 is'an end elevational view of the parts shown in Fig'. 8;
  • Fig. l.11 is ⁇ a sectional view on line I Fig. 8;
  • Fig. l2 is a perspective View of the operating lever
  • Fig. 13 is a perspective view of the pivoted foot of theattachment
  • Figs. 14, 15 16 and 17 are views showing various kinds of stitching of which the attachment is capable; Y
  • Fig. 18 isa side elevational view of amodified form of our device.
  • Fig.'19 is a planview of the pivoted foot of the mechanism shown in Fig..18.
  • Fig. 20 is an enlarged sectional view on line 2li-20 of Fig. 19. l
  • a zigzag attachment comprising a frame member. fili, comprising spaced side members li and ,l2 which,'.as ⁇ shown at I3, are raised lat their ⁇ central portions vto provide bearings fora rotatable .shaft I4.
  • This frame "member is provided with a forwardly eX- tending portion I5to which mayA be secured an device ⁇ may be attached to thepresser bar llof a sewing machine in the usual mannen?
  • a hub member I8 having rigidly mounted thereon a rotatable cam member I9.
  • This member is ⁇ made of two parts, 25 and 2 I, which parts, as shown more especially in Figs. 3 and 4, are similarly formed and provided with spaced teeth or cam portions 22, having bevelledvside edges 23.
  • are secured together back to back with the teeth of one alternating with those of the other so that the result is a member with laterali l therefore, when the pawl 28 isin engagement ly displaced cam surfaces on each side of a cen- In this manner, a sharp edge of a Pivoted upon the shaft I4.
  • lever 25 is actuating or operating lever 25, provided with a bifurcatedl slotted end 25, and adapted to be connected to the needle bar 21 in the usual way so that the lever'25 willbev reciprocated in a verticalplane by the up landdown movements of the needle bar.
  • a pawl 28 Pivoted upon the lever 25 is a pawl 28, the end 29 of which is adapted to engage with either of ratchet wheels and 3
  • the pawl 28 is rpressed'into engagementwith l these ratchet wheels by a spring 33 andthe pivotal connection of this pawl vwith lever 25 is shown more especially inFig. l1.
  • the pawl 28 is rigidly secured to theV reduced portion of a knurled button 35, slidably mounted'on a pin 36 secured to the lever 25.
  • This pin is provided-with a head 31 and the v button 35 is recessed as shown at 38 to receive the head of the pin whenthe pawl is moved outwardly. It will be understoodthat the operator, by grasping the button 35,' may move this button and the pawl 28 away from the lever 25 l.
  • are provided with a different number of teeth.
  • the ratchetwheel 30 is provided with 12 teeth and the ratchet wheel 3
  • a mask 4I is provided to covera portion of the teeth of the ratchetwheel adjacent the point of engagement of the pawl 28 so that the pawl, when in position to'engage the ratchet wheel 3
  • the forward portion 41 of the foot member may swingupwardly and downwardly about the pin 52 about an axis transverse to the forward travel of the material and italso mayl swing or rock from side to side about an axis longitudinallyof the attachment.
  • This freedom of movement given the foot is, of course, in addition to its lateral pivotal motion about the pin 45 and enables the foot to accommodate itself at all times to the'material and the bed.
  • a lever 55 Pivoted to the rearv portion of the frame member at 55 is a lever 55, shown more especially in Fig. 12, which lever extends forwardly below the shank portion of the foot and is provided with a slot 51 to Yreceive the pin 45, the forward portion of the lever being held in position by the lWasher 5I, While the slot provides for a swinging .movement of the lever with respect to the pin 45.
  • the lever is provided with an upwardlydisplaced portion 55 to receive the rivet 55, and with a vertically projecting end portionv 55, so that, as
  • this member is substantially L-shaped in form. It is also provided with a pair of pins 50 upon which are mounted rollers 6I in spaced relation so that one of these rollers lies upon each side of and is engaged byh the peripheral cam surfaces of the cam memberIS, i
  • This lever 55 is also provided with a longitudinally extending slot 53,through wl'iichprojects a pin 64 securedto a plate 65 positioned atvthe lower surface of the lever lThe'plate 651s pro- Arecess 49 provided at the rear end of the shank 46.
  • the plate 65 is 'also L-shaped lin form, being provided with an upstanding rear end portion 68 in which portion is rotatably mounted ⁇ an adjusting nut'69 which threadedly receives a screw 1I) secured to the portion 59 ofthe lever 56'.l
  • the adjusting nut may be provided' with a series of notches or recesses 1I adapted vto be engagedbyr a detent or index member 12 on a spring "I3 secured to the plate 65. It will be apparent that as the nut 69 is rotated, the part 68 will be caused to approach or recede from thepart 59 and;
  • the pin 64 will be given an oscillatory movement and as this pin strikes the sides of the V-shaped slot y49 it will elect a lateral oscillating pivotal movement of the foot 41 about the pivotpin 45,- and the foot 4l, being in contact with the material, will cause the material to move laterally so as to effect a zigzag stitch.
  • the maximum throw of the foot occurs when the pin 64 is atthe yforward end of the slot 49 where no lost motion 'occurs and adjustment in the opposite direction can be made until the pin r64 no lon'gercontacts4 the sides of the recess 49vand thus givingthey foot no movement at all, in which eventstraight sewing is effected.
  • the cam member I9 When the pawl 28 is in engagement with the outer ratchet Wheel 30, as shown* in Fig. 3, the cam member I9 is moved througha ⁇ distance substantially equal to the spacing between the high so that the cloth is given a lateral movement for each stitch of the machine, thus effecting an angular zigzag stitch, shown, for example, in Fig. 14.
  • the operator by grasping the button 35, may turn Vpoints of two adjacent peripheral cam portions,
  • the cam member I9 will, during one strokeof the needle bar, be moved through only'onefhailf 'the former distance, or through a distance equal to one-half a lateral movement, not'between every stroke of the needle bar, but betweenv every two strokesof the needle bar, which will eifect .the stitching shown in Fig. 15 of the drawings. Y This is due.
  • the pawl 28 is pro vided with a V-shaped notch 'I5 in the end contacting the ratchet wheels. The pawl may, therefore, be placed in the position'in Fig.
  • the shaft ⁇ I4 may be provided with a knurled knob 16 by which this shaft may be turned independently of movement of the lever 25.
  • indicating means may also be desirable to providel indicating means to indicate the adjustment 'of the plate 65 and pin 64.
  • graduating marks l1, shown in Fig. 1 are placed upon the plate member 65 and an index mark'l is placed lupon the'lever 56-
  • This index ymark will 4cooperate with thel graduation to indicate at onceto the a guide-member 'I9 is shown as secured to the foot y member" vby means of the screw 80, the guide member being' provided with 'an opening V8
  • the guide member is also provided with a plurality of cloth guiding slots 83., I i
  • the member 90 is provided with a pair of up- 1 standing ears 98, provided with open-ended slots 1 99, within Which rotatably rests a right and lefti hand threaded screw
  • the screw is held in position by means of a clamping V ⁇ member
  • rotation of the screw serves to move the rollers
  • may be provided with a number of regulated spaced notches
  • An attachment for a sewing machine having a presser bar and a needle bar comprising a frame adapted to be connected to the presser bar, a foot movably connected to the frame, meansconnected to the needle bar for actuation thereby for eiecting lateral oscillatory movements of said foot, said connection including a pawl and a pair of ratchet Wheels, and means for placing said pawl in cooperative relation with either of said ratchet Wheels as desired.
  • An attachment for a sewing machine having a presser bar and a needle bar comprising af rame adapted to be connected to the presser bar, a foot movably connected to the frame, means connectedy to the needle bar for actuation thereby for effecting lateral oscillatory movements of saidY toward and away from each other, depending on varying the lengthof Ysaid steps, and said cam rWheel being so constructed that it is permitted an initial movement without eiecting movement of said foot, whereby such variation eiects a variation in the, number of lateral niovementsrelatively to the number of strokes of the needle bar.
  • An attachment for a sewing machine having a presser bar and a needle bar comprising a frame adapted to be connected to the presser bar, a foot movably connected to the frame, means connected to the needle bar for actuation thereby for eiecting lateral oscillatory movements of said foot, said connection including a cam wheel rotated in a step-bystep movement, and means for varying the length of said steps, said last-named means including apair of ratchet wheels and a pawl to cooperate with either of said wheels selectively.
  • An attachment for a sewing machine having a presser bar and a needle bar comprising a frame adapted to be connected to the presser bar, a foot movably connected to the frame, means connected to the needle bar for actuation thereby for eiecting lateral oscillatory movements of said footpsaid connection including a pawl and a pair of ratchet wheels, means Vfor placing said pawl in cooperative relation with either of said ratchet wheels as desired, and means for placing said pawl in position in which it engages neither of said wheels.
  • An attachment for a sewing machine having ya presser bar and a needle bar, said attachment comprising a frame, a foot movably connected to said frame for lateral oscillatory movements, means'actuated by the needle bar of the sewing machine to eiect movement of said foot including a cam wheel, said cam Wheel comprising a. pair of members each having outwardly facing spaced cam surfaces, and means for securing said members together in opposing back-to'back relation, with the cam surfaces of one member alternating Witlnand facing oppositely with respect to those of the other.
  • An attachment for a sewing machine having a'pljesser bar and a needle bar said attachment 7 comprising av frame, a foot movably connectedto the frame,fmeans for eiecting lateral oscillatory movements of said foot without advancing the same relatively to the frame, said means including a lever operable by the needle bar, a rotatable shaft actuated by the lever ina step-by-step movement, each step resulting from a stroke oi the needle bar, means to vary ythe angle through which the shaft is turned during a single stroke of the lever, and connections between said shaft and foot operative to provide for initial movement of the shaft'without effecting movement of said foot.
  • An attachment for a sewing machine having a presser bar and a needle bar comprising a frame adapted to vbe connected to the presser bar, foot movably connected to the frame, means con; nected to the needle bar for actuation thereby for effecting lateral oscillatory movements of said foot, said means including a cam wheel rotated in a step-by-step movement, and means for'varying the length of said steps including a cooperating pawl and ratchet,r means to hold said pawl Vfrom engagement with the ⁇ teeth of the ratchet during a part of itsmovement, and connections between said cam wheel and said foot, said cam wheel and said connections being arranged to provide for an initial ymovement of said wheelwithout effecting lmovement of said foot.
  • a sewing machine attachment for zigzag stitchingV operations comprising a frame, a floot connected to the frame for lateral oscillatory movement, a lever pivoted to the frame, means actuated by the needle bar to move said lever on its pivot, and means connecting said foot to the lever whereby the former is oscillated by the latter, said connecting means comprising a slot of varying Width in said foot and a pin carried by said lever and received in said slot.
  • a sewing machine attachment for' zigzag stitching operations comprising a frame, a foot connected to the frame for lateral oscillatory movement, a lever pivoted to the frame, means actuated by the needle bar to move Said lever on its pivot, means connecting said foot to the lever whereby the former is oscillated by the latter, said ,connecting means comprising a slot of varying IwidthV in said foot and a pin carried by said lever and received in said slot, and said pin being adjustable longitudinally of the slot to vary the throw imparted to said foot.
  • a sewing machine attachment for zigzag stitching operations comprising a frame, a foot yconnected to the frame 4f-or lateral oscillatory movement, a lever pivoted to the frame, means actuated by the needle bar to move said lever on its pivot, and means connecting' said foot to the lever whereby the former is oscillated by the latter, said connecting means comprising a plate carried by said lever, av pin on said plate, and said'foot having a slot in which the pin is received.
  • a sewing machine attachment for zigzag stitching operations, comprising a, frame, a foort connected to the frame for lateral oscillatory movement, a lever pivoted to the frame, means actuated by the needle bar to move said lever on itspivot, and means connecting said fooft to the lever whereby the former is oscillated by the latter, said connecting means comprising a plate carried by said lever, a pin on said plate, and said foot having a slot in which the pin is receivedy said plate being adjustable on said lever.
  • An attachment for a sewing machine having a presser bar and a. needle bar comprising a frame adapted to be connected to the presser bar, a. foot movably'connected to the. frame, means connected to the needle bar for actuation there- 14.
  • a sewing machine attachment for zigzag stitching operations comprising a, frame, a foot connected to the fname for lateral oscillatory vmovement, a lever pivoted to the frame, means actuated by the needle bar to move said lever on its pivot, means connecting said foot to the lever whereby the former is oscillated by the latter, said connecting means comprising a plate carried by said lever, a pin on said plate, and said foot having a slot in which the pin is received, said plate and lever comprising L-shaped members having horizontally disposed body portions and upstanding spaced end lportionsand meansl adl justably connecting said end portions for moving the pin relatively to the slot, said last-named means including a threaded adjusting member made.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US359384A 1940-10-02 1940-10-02 Sewing machine attachment Expired - Lifetime US2374721A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US359384A US2374721A (en) 1940-10-02 1940-10-02 Sewing machine attachment
FR913054D FR913054A (fr) 1940-10-02 1945-08-02 Dispositifs accessoires de machines à coudre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US359384A US2374721A (en) 1940-10-02 1940-10-02 Sewing machine attachment

Publications (1)

Publication Number Publication Date
US2374721A true US2374721A (en) 1945-05-01

Family

ID=23413576

Family Applications (1)

Application Number Title Priority Date Filing Date
US359384A Expired - Lifetime US2374721A (en) 1940-10-02 1940-10-02 Sewing machine attachment

Country Status (2)

Country Link
US (1) US2374721A (fr)
FR (1) FR913054A (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2592653A (en) * 1949-05-04 1952-04-15 Greist Mfg Co Sewing machine attachment
US2619924A (en) * 1950-06-23 1952-12-02 Greist Mfg Co Sewing machine attachment
US2627239A (en) * 1948-02-20 1953-02-03 Singer Mfg Co Attachment for making stitched hems
US2673540A (en) * 1951-09-06 1954-03-30 Greist Mfg Co Blind stitcher
US2676558A (en) * 1950-10-20 1954-04-27 Singer Mfg Co Ornamental stitching attachment for sewing machines
US2697993A (en) * 1951-12-03 1954-12-28 Cornelius A Rolfson Zigzag attachment for sewing machines
US2711705A (en) * 1951-04-21 1955-06-28 Greist Mfg Co Overcasting attachments
US2736283A (en) * 1953-04-22 1956-02-28 Chelsie I Adams Work guide attachment for forming invisible stitches
US2825295A (en) * 1956-01-13 1958-03-04 Greist Mfg Co Decorative stitch attachments
US2983238A (en) * 1955-12-19 1961-05-09 Fremaco International Inc Attachment for sewing machines
US20040126200A1 (en) * 2000-07-20 2004-07-01 Fg Products, Inc., A Wisconsin Corporation System and method for partitioning cargo areas

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2627239A (en) * 1948-02-20 1953-02-03 Singer Mfg Co Attachment for making stitched hems
US2592653A (en) * 1949-05-04 1952-04-15 Greist Mfg Co Sewing machine attachment
US2619924A (en) * 1950-06-23 1952-12-02 Greist Mfg Co Sewing machine attachment
US2676558A (en) * 1950-10-20 1954-04-27 Singer Mfg Co Ornamental stitching attachment for sewing machines
US2711705A (en) * 1951-04-21 1955-06-28 Greist Mfg Co Overcasting attachments
US2673540A (en) * 1951-09-06 1954-03-30 Greist Mfg Co Blind stitcher
US2697993A (en) * 1951-12-03 1954-12-28 Cornelius A Rolfson Zigzag attachment for sewing machines
US2736283A (en) * 1953-04-22 1956-02-28 Chelsie I Adams Work guide attachment for forming invisible stitches
US2983238A (en) * 1955-12-19 1961-05-09 Fremaco International Inc Attachment for sewing machines
US2825295A (en) * 1956-01-13 1958-03-04 Greist Mfg Co Decorative stitch attachments
US20040126200A1 (en) * 2000-07-20 2004-07-01 Fg Products, Inc., A Wisconsin Corporation System and method for partitioning cargo areas

Also Published As

Publication number Publication date
FR913054A (fr) 1946-08-28

Similar Documents

Publication Publication Date Title
US2374721A (en) Sewing machine attachment
US2989015A (en) Sewing machine equipped with an automatic device for effecting variable pattern embroidery stitching
US2482607A (en) Buttonhole attachment for sewing machines
GB756403A (en) Improvements in or relating to sewing machines
US2713838A (en) Needle-vibration controlling mechanisms for zigzag stitch sewing machines
US2770206A (en) Sewing machine attachment
US3130697A (en) Control system for zig-zag sewing machines
US2717566A (en) Sewing machine attachment for circular feed
GB795329A (en) Zig-zag sewing machine
US3177835A (en) Automatic pattern zigzag sewing machine
US3055324A (en) Zigzag sewing machine with automatic motif-frequency control
US2235552A (en) Sewing machine
US3075483A (en) Zig-zag sewing machines
US3696768A (en) Ornamental zigzag stitch sewing machine
US1980001A (en) Automatic sewing machine
US2702515A (en) Buttonhole attachment for sewing machines
US3127856A (en) Hole stitching device for zigzag sewing machine
US4134351A (en) Sewing machine
US2685266A (en) Stitch control lever limiting device
US3295484A (en) Sewing machine triple feeder attachment for stitching elastic to cloth pieces
US2432992A (en) Buttonhole attachment for sewing machines
US2669954A (en) Ruffler
US2389745A (en) Sewing machine attachment
US2697992A (en) Blind stitcher
US3132611A (en) Buttonhole attachment for zigzag sewing machines