US1162987A - Overseaming-stitch-forming mechanism. - Google Patents

Overseaming-stitch-forming mechanism. Download PDF

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US1162987A
US1162987A US69465712A US1912694657A US1162987A US 1162987 A US1162987 A US 1162987A US 69465712 A US69465712 A US 69465712A US 1912694657 A US1912694657 A US 1912694657A US 1162987 A US1162987 A US 1162987A
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needle
loop
taker
jogging
lateral
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US69465712A
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Albert H De Voe
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Singer Co
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Singer Co
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    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B3/00Sewing 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
    • D05B3/02Sewing 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 with mechanisms for needle-bar movement

Definitions

  • Patented Deo. 7, 1915 Patented Deo. 7, 1915.
  • This invention relates to an improvement in loverseaming stitch-forming mechanlsm
  • the invention has for its object to provide'a simple and effective mechanism of this class which shall be strong and durable and in whichthe needle-jogging meansis so arranged as to prevent obstructing the oper- ⁇ ators view of the work.
  • the machine is provided with a rectilinearly reciprocating sectional tubular needle-bar carrying a fixed and a laterally movable needle and having a fixed bearing embraced bythe spaced mem.- bers of a yoked rocking frame journaled upon said needle-bar and connected withl suitable means for imparting rocking movements thereto.
  • crank-'rod Journaled lwithin the' needle-ca-rrying section of the 'needle-bar and having a bearing in the other-section thereof ⁇ is a crank-'rod having at its lower' end a crank operatively connected with the carrier for the laterally movable needle and at its upper end a lateral arm fixed thereon intermediate the adjacent ends of the needle-bar sections and having a pivotal and sliding connection' with said rocking frame,V wherebv the jogging movementsl are imparted to the laterally'movable needle by a connection with the rocking frame passing through the needle-bar so as to reduce to the smallest bulk possiblethe parts carried by the needlebar nearest thework.
  • the jogging needlecarrier is'preferablyin the form of a slideblock mounted in a transverse slideway of the j needle-bar and having a lateral arm formed with a .stud embraced by the eyed endof a slide-pin entering a radial socket in the crank at the lower end of lsaid crank-rod.
  • One of theloop-taker Shafts is mount-- ed in a fixed bearing bracket and the other upon a jogging ⁇ frame having a fulcrum vtransverse to saidv loop-taker shafts and tov the intermediate shaft and ⁇ v provided with a lateral arm connect-ed vby a ⁇ pivotal pin with a block apertured to .embrace an actuating eccentric loosely mount-ed upon said intermediate shaft and rotating at one-.half the speed of the needle-driving shaft.
  • the jogging frame carries a holding arm adapted to ⁇ engage a portion ofithe threadcase of the jogging loop-taker to restrain it from rotation therewith and in this arm is secured a thread-controlling finger adapted to engage'the lower thread of the jogging lloop-takerand to take up and giveout slackrespectively in' the in-throw and out-'throw of the loop-taker relatively to the fixed or Arectilinearly vreciprocating needle.
  • This lfin"- ger also serves to control the lead of the needle-thread ⁇ between the loop-taker andthe fabric as it is drawn up by the take-up.
  • FIG. 1 is a sectional side elevation ofa sewing machine embodying the present improvement,.and Fig; 2 aplan view thereof taken from the lowerside.
  • -Figq is an elevation of the stitch-forming mechanism and the loop-taker jogging' means, looking to-. ward the frontend ofthe machine.
  • Fig. 4.- is an elevation upon an enlarged scale of the jogging loop-taker and ⁇ its supporting and actuating means taken from the front end of the machine, and Fig. 5 a plan thereof, representing also the non-.jogging looper, Fig.
  • Fig. 6 is a side elevatiompartly in section, of the jgging-looper supporting frame and the looper-driving pinions.
  • Fig. 7 is an elevation, partly in section, of the needle-bar and a portion of the needle-jogging means, and
  • Fig. 8 aperspective view of the needle-jog' ging crank-rodv and 'certain lof its connections.
  • Fig.'9 is a perspectiveview showing the fixed and jogging needle-.holders and the adjacent portion of the' needle-jogging mechanism, withcertain 'of the parts detached from the others tofeXpose the gconstructive features.
  • Fig-10 v is-'af perspective View of the jogging ⁇ needle-'carrier detached.
  • ⁇ 11 is annnder sideview'of the parts ⁇ repref 4sentedin Fi 9
  • Fig. 12 a similar viewof a modi cation showing two needles mounted in the-jogging needle-holder.
  • Fig. f 13 is a perspective v iew representing the ⁇ under l'side of the throat-plate .with -lts needle-guard ⁇ and needles extendingthrough the same.
  • v Figs. '14, 15 and 16 are plan views representing sections of -the fabriewith the I .marginal portions thereof covered respecwith Ithevbed-plate-.l and bracket-arm comtions 8 and 9 of the tubular needle-bar.
  • the frame of the machine is constructed prising the hollow?, standard 2 and .the overhanging tubular member 3 terminating in the hollow head 4 vformed at the top with [the boss 5 aiording the upper needlefbar bearing and 'at the bottom with the member 6 having the bushing 7 afordingthe lower needle-bar bearing, in which-#bearings are journaledthe spaced upper and lower secadjacent end portions of the needle-bar Sections'are rigidly coupled'together by means 'of a splitv collar 10 clamped thereon by screws 11 and formed in one side'intermediate the ends'with a deep notch 12 extending beyond the opposite side of the needle-bar,
  • the main-shaft 17 has ixed'thereon the switch-cam ⁇ 21 having the grooves 22 entered by the follower 23 pivotally mounted by means ofthe pin 24y upon the lower arm 25 ⁇ of a rock-lever fulcrumed at 26 upon the arm 3 and having an upper arm 27 upon'which'is adjustably secured. ⁇ the shouldered stud 28 passing throughv the yslot 27 .of said arm and provided with the clampenut 29.
  • the stud 28, which in prac-v tice is formed with a spherical extremity is embraced byA one end 'ofa link 30 whose apertured opposite end embraces the ball screw-stud 3l tapped into the laterally pro- A4jectingboss 32 of the rocking frame 33 yoked to form the spaced members 34 and 35 embracing the' bearing boss 5 and apertured to vtit the needle-bar section ⁇ 8 upon which said yoke vis journaled to swing,
  • The'frame 33 is bored out to form a guideyway 36 to receivethe pin 37 which is secured by .means of setscre"ws 38 within thegapertured boss 39 o f an arm 40 having a split hub 41 adjustablyclamped by means of the screw 42,1 1pon' the ⁇ upper portion of the oscillating-'crank-,rod .43 which is ournaled within the bore ofthe lower needle-bar section-9 and ⁇ vhose upper ⁇ end .portion is received in a bearing
  • the rod 43' has'ixed upon its lowerend the 'crank ⁇ 44 formed with a radial socket 44 .entered by the sliding-'pin 45 having the transverse boss 46 apertured to form the eye 47 embracinga stud 48 carried by the rearwardly extending arm 49 of the needlecarrying slide-block ISO-which is provided with the.depending-portionl having the usual .needle-Socket 52 in which is secured by Ameans of the setscrew 53 the' laterally jogging needle 54.
  • the slide-block 50 is fitteclwithin a transverse slideway 55 in the liXed needle-,carrier 56 formed with the lateral slot 57 for the arm 49 of the slideblock 50 andbaving the depending part 58 Iwith needle-socket 59 in which issecured hy -means of the set-screw 60 the fixed needle 61.
  • the needle 5 4 performs its lateral jogging movements in a plane rearward of the fixed needle 61.
  • the arm 49 is provided with a shank portion entering a'slot in the block 5() in which it is ing with that of the needle-bar, while the jogging needle 54 has in addition to its endwise movement a lateral jogging movement communicated thereto through its connection with the oscillating rod 43 housed within the hollow needle-bar'and having a sliding and pivotal connection with the rocking frame 3 3 which derives from the switch'- cam 21 upon the main-shaft its rocking movements of one-half the frequency of the needle-bar reeiprocations Adjustably secured upon a seat 66 upon risate?
  • the pins 82 are secured by means of set-screws 83 within spaced bosses 84 of av jogging frame 85 formed with an upwardly eXt'end-I ing bearing member .86 in which is journaled the loop-takerv shaft 87 upon which is fixed the jogging loop-taker 88 which isprovided ⁇ with the beak 89 adapted for coperation with the jogging needle 54 and having ournaled .therein the non-rotating thread-case 90 formed -with the laterally vextending finger 91 and ⁇ containing the lower thread .bobbin 92.
  • the jogging frame 85 is formed with the divergently extending lateral arms 93 formed with the'perfora-ted bosses 94 in which vis secured by means of the set-screws A95 theslide-pin 96 disposed parallel with-the fulcrum-pins 82, and enteringv a-transverse aperture in the block 97 which has a second aperture fitted tothe actuating eccentric 98,
  • Journaled in the depending bearing members 99 'ofthe bed-plate is the horizontally disposed intermediate shaft 10Q arranged in transverse relation both to the 'loop-taker' shafts and to the fulcrum .of-the jogging frame 85 and having fixed thereon by means of the set-screw 101 the bevel-pinion 102 meshing with the similar pinion 103lsecured upon the lower end 'of the loop-taker shaft 71, and having a second bevel-pinion l104 secured thereon by means of thev set-screw 105, and meshing with La similar pinion 106 which is fixed upon the lower end of the loop-taker shaft'87.
  • the fulcrum-pins- 82 are so disposed relative to the pinions 104 and 106 that their aXispasses approximately through the intermeshing point of, such pinions so Aas to permit the slight tilting movement-of the frame 85 without materi-4 ally ⁇ aifecting the intermeshing relation of such pinions.l
  • the part of the frame 85 intermediate" the bosses 84 is cut out to afford clearance for the pinions 104 and 106.
  • Thelinterinediate shaft has fiXed its rearward end by ⁇ means of" the set-screw 107 the hub 108 of the pinion 109 which meshes with the gear-wheel 110 havingits hub 111 secured byaneans of the set-screw 112 upon the] lower shaft- 113 which is formed with quartering cranks .114 connected bymeans of the pitmen 115 with the similarly arranged craks 116 formed i-n the main or needle-driving shaft 17.
  • the .plnion .109 is one-half the size of the gearwheel110, and the bevel-pinions 102, 103,
  • the eccentric 98 is secured u'pon the hub '117 of a gear-wheel 118loosely. mounted upon the intermediate shaft 100 and held against lateral displacement thereon by means of the thrust-collar 119. Meshing with the gear-wheel 118 is the pinion 120' whose hub 12.1 is adjustaldliy secured upon the ⁇ shaft 113 by means of the set-screw 122 vand serves to ⁇ impart to the eccentric, ⁇
  • the loop-takers 72 and 88 are caused to perform uniform circular movementsI in which their excursions from an initial position', such as loopseizing position, ⁇ are'performed with greaterfrequency than the lateral jogging move- 'ments of the needle 54 and the loop-.taker support 86. ⁇ I'lie'relation between the rotat ⁇ lCO ing meansV and the. jogging means'of the lat.- A
  • erally movable loop-taker 88 is such that the coperative relation of the loop-taker with its respective needle is uniform regardless of their lateral positions.
  • rllhe loop -taker may follow 1 the' needle-jogging movements in the amplitude lof its lateral movement, in the customary manner, or a fixed period of uniform lateral movement thereof may be advanced or delayed in timing so that any excess of such ⁇ uniform ⁇ maximum lateral movement may occur after the loop-seizing instant, the further and superfiuous lateral movement of the -looptaker being immaterial as regards the cooperation of the stitch-forming elements.
  • the compensative lateral loop-taker movements are ei'ected in the present instance by resetting the pinion 120 upon its shaft by temporarily loosening the set-screw 122 ⁇ so. as to advance or retract the loop-taker jogging, cam 98 circularly for bringing the loop-taker laterally into operative relation with the needle When in loop-presenting position, lbut prematurely as regards its (the loop-takers) further range of uniform lateral movement.
  • the loop-taker should be laterally stationary, or at the point of reversal of its lateral" movements, duringl the loop-seizing action, so long as -its continued lateral l movement be not of such character as to cause injurious collision with the then rapidly rising needle.
  • the loop-taker has so little bodily lateral'movement andl theneedle performs its rising movement so rapidly relatively there-4 to, that thereis no interference betweenthese stitch-forming elements.
  • the bearing member 86 of the. jogging loop-taker sustaining frame. is Aprovided with a lateralyseat beneath the loop-taker upon ⁇ Whichnis secured by means of'the fas- ⁇ tening screw 123 the. foot 124C of a holding arm 125 extendingxupwardly land terminating in a ,member 125" formed in' its-lower 4 faclegwith'fthe notch .126 to lreceive the laterally? extending finger-91* of the thread-case 90',A ⁇ andad'apted to vrestrainthe latter against rotary movement 'with .the loop-taker. 88..
  • The-arm 125 is formed With a lateral lug 127 having a socket in which is secured by means of the'set-screw 128 the shank of the thread-controlling finger 129 which is disposed substantially-upon ja, level with the ⁇ top of the loop-taker and intermediate the latter and the path of reciprocation of the jogging needle 54.
  • tie finger 129 has a lateral extension 130 at its extremity.
  • ther throatplate 131 constituting the Work-support Which is formed with the usualfeed-dog apertures 13 2 and the needle-apertures 133 and' 134, the former being inthe form of a transverseslot to accommodate the jogging needle 5-1.
  • the needle-'guard 136 Secured upon a seat intermediatethe feed-dog apertures by means of screws 135 is the needle-'guard 136 formed with the usual oppositely. facing grooves137 to receive the respective needles and to -insureA the throWing ⁇ ,out of their thread-loops Wholly upon the sides loccupied by their respective loop-takers.
  • the throat-plate is shown provided at one edge with dependmg spaced holding lugs 138 embracing the lateral finger 74: of the thread-case 74 to restrain it against rotation With its sustaining loop-taker 72.
  • the machine is shown providedwith the presser-bar 139 to which is secured the shank of the presser-foot 140"opp ⁇ osed to the feed-dog 141' having feed points extending through' the throat-plate apertures 132 and sustained by the feed-bar 142 connected With and deriving operative feeding movements from'the rock-shaft 143 Which rel ceivesits rocking movements from the actuating eccentric 144 through suitable connections, the feed-bar deriving its rising andA falling movements from the rock-shaft 145 Which receives its rocking movements from the feed-lift eccentric 1116.
  • the loop-taker 72 cooperates With the fixed needle 61 i ⁇ n the production of a straight seam and the loop-taker 86 follows the lateral movements of the jogging needle 54 in the production, of a zigzag seam.
  • the overlapped -marginal portions of the sole a and'upper of the tabi are stitched together by the line of 4straightavvay stitching c and the raw edges arebound by 'means of the line of zigzag stitching 'd in which the in-throW punc- -tures of the joggingneedle 541 ⁇ are in substantial alinement vwith thest'raight row of vpunctures vof the Xed needle 61, as repre- ⁇ sented in Fig. 14.
  • the machine is used in connection with loose-textured fabrics requiring a'm'ore.
  • the position of the in-throwv punctures ⁇ of the jogging needle maybe arranged beyond the straight-away seam ⁇ c by slightlyl shifting the jogging cam 21 upon the main-shaft 17 or adjusting the arm '40v uponthe crank-rod 43; or sidepointed needles, as represented in Fig. 13, may be employed with their points set opineens? positely, and that of the jogging needle arranged in the direction of the in-throw, so
  • the slide-block To provide for more effectively covering the i'aiv edges of the Work, the slide-block.
  • the extension 51 of the block has a socket 147 against one Wall', of
  • a double-zigzag overseam may be produced with the se'ains CZ and rl overlapped upon the upper face of the Work and which may be anchored or ,a circularly movingdoop-taker. cooperating not, as may bedesired, in the straight-away seam 2, as represeiitedin Fig. 16.
  • loop-taker bodily ⁇ jogging movements transversely of its axis of circular movement and correspondingly in amplitude With the lateral movements of the needle, and means acting upon the loop-taker independently of its.' ⁇
  • an actuating shaft mounted in fixed-bearings, intermeshff ing gears mounted respectively upon said actuating shaft and said loop-taker shaft and direction of the lateraljogging 'movements .of said needle, an actuating shaft mounted in'iiXed bearings and disposed transverse to said loop-taker shaft and to its fulcrum, in ⁇ termeshing bevel-gears mounted respectively upon said actuating shaft and the loop-taker v shaft and having their intermeshing point upon substantially the axis of said fulcrum,
  • a joggingfram providedwith a lateral arm and adaptdtdsustain said loop-taker and to'ini'partthereto jogging movements correspondingwithlthose .of the needle, a fulcrum for said fr'ame, jaJrotating'eccentric, a block mounted v thereonand formed with -an aperture to embrace-'tha same and "with an aper- ⁇ -ture 'transversethereto, and a pin entering; the transverse ffap uitefof said'block and connected with ⁇ thel'it'eral armof said frame whereby the ,latter derives its jogging move- 10.
  • a sewing machine in combination, a frame, a circularly moving loop-taker, a thread-case journaled therein, a v.support movable relatively to said frame upon lwhich said loop-taker is mounted to perform its circular' movements, means for imparting to the loop-taker uniform circulai'movetained by said support for restraining the threadcase against circularmovement with the loop-taker, and means connected with said support for ⁇ imparting toit lateral ,jogging movements transverse to k the axisv of circular movement of the loop-taker.
  • the coinbinatio with an endw'ise reciprocating and laterally jogging needle, of/a circular-ly moving looptaker actuating means for imparting cir- 'cular movements to said loop-taker, means for imparting to said loop-taker lateral jogging Imovements transverse to the axis of] its circular movements, and a 'thread-controlling element occupying a position intermediate iiid needle and loop-taker.
  • thejcoinbination ywith a reciprocating tubular needle-bar and a fixed bearing in which the same is journaled,.of a laterally movable needle mounted thereon, a rocking frame yoked to embrace said bearing and journaled at opposite sides thereof concentrically with said needle-bar and provided with a guideway parallel with the latter, means for rocking said frame, a crank-rod within said needle-.bar and carrying a crank having a connection with said needle, ai' direct operative connection between said .crank-rod and said rocking frame, .fi-lateral arm rigidly secured upon said crank-rod and carrying -a guide-pin adapted to enter the guideway of said rocking frame, and loop-taking means coperating with saidv needle.
  • the combination "with agtubular needle-bar formed in 'separate alined sections, a collar provided on one side with-a lateral stud and in the opposite vside intermediate its ends withfa lateral notch and affording a .rigid couplinof be tween ⁇ the.l spaced adjacent ends-of sai needle-bar, and means connected with said lateral -stud forimparting rectilinear reciprovlaterally -plied to said ary eating movements to said needle-bar, of a movements vLto; r"
  • a reciprocating needle-bai' means for iestraining it against turning, aneedle lixed ⁇ thereon against lateral movement, a second and laterally movable needle mounted .upon said needle-bar, means for imparting to the second-named needle lateral jogging Inovements between extreme positions at opposite sides of the first-named needle, and looptaking devices coperating with said needles.
  • the 'combination with the feeding mechanism, of stitch-forining mechanism comprising a rectilinearly re- ⁇ 0n, a needle carried thereby and movable thereon transversely of the direction of feed .and in a plane at one side of the fixed needle, jogging means for the laterally movable needle, and loop-taking devices coperating with said needles.
  • a reciprocating carrier moving with' said needle-bar and adapted vfor lateral movement transverse tothe direction of feed, a plurality of lneedles mounted in said carrier and arranged in a plane parallel with the direction of feed, means for imparting to said ⁇ carrier lateral jogging movements, and looptaking devices coperating with said needles.
  • the combination with the feeding mechanism, of stitch-forming mechanism comprising a rectilinearly reciprocating needlebar, ⁇ a needle fixed there- ⁇ on, a carrier mounted upnsaid needle-bar and movable thereon ⁇ transversely to the ⁇ direction of feed, a plurality of needles mounted in -said carrier and arranged in a plane Yparallel' with the direction of feed, means for 'imparting-to said-carrier lateral jogging movements, a loop-taker.
  • Vcipggoeating needle-bai' Vcipggoeating needle-bai', a needle xed there.

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  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)

Description

A. H. DE VOE.
OVERSEANILNG STITCH FORMING MECHANISM.
APPLICATION FILED MAY 2. |912.
Patented. Dec.4 7,1915.
2 SHEETS-SHEET 1.
imms
A. H. DE VOE.
OVERSEAMING STITCH FORMINGMECHANISM. APPLICATmN FILED MAY 2. 1912.Y
Patented Deo. 7, 1915.
/Nl/ENTR MKM/W i narnia ia Flippi,
ALBERT H. DEvoE, or W'ESTFIELD; NEW JERSEY, AssIGNjon To THE SINGER MANU- i FACTUIRING- COMPANY, A CORPORATION 0F NEW`JERSEY.
OVERSEAMING-STITCH-FORMING MECHANISIVI.
meenam y Specification of Letters Patent.
l lPatentedlDec. 7, i915..
Application led May 2, 1912. Serial No. 694,657.
To all lwhom it may concern.'
Be it known that I, ALBERT H. DE VoE, a citizen of the United States, residing at lfVestfield, in the county of Union and State of' New Jersey, have invented certain new and useful Improvements inOverseaming- .Stitch-Forming Mechanisms, of which the following is. a specificatlon, reference being,
had therein tothe accompanying drawings. This invention relates to an improvement in loverseaming stitch-forming mechanlsm,
and it is designed' more particularly for stitching togetherv and serging the 'superposed marginal portionsof the uppers and soles of Japanese footwear known as tabis,
The invention has for its object to provide'a simple and effective mechanism of this class which shall be strong and durable and in whichthe needle-jogging meansis so arranged as to prevent obstructing the oper-` ators view of the work. u l
It has for its furtherobject to 'provide mechanism for'v producing astrong Seam for uniting' the soles and' uppers of the tabis and for effectively `confining their raw edges to prevent raveling.
As preferably constructed. the machine is provided with a rectilinearly reciprocating sectional tubular needle-bar carrying a fixed and a laterally movable needle and having a fixed bearing embraced bythe spaced mem.- bers of a yoked rocking frame journaled upon said needle-bar and connected withl suitable means for imparting rocking movements thereto. Journaled lwithin the' needle-ca-rrying section of the 'needle-bar and having a bearing in the other-section thereof `is a crank-'rod having at its lower' end a crank operatively connected with the carrier for the laterally movable needle and at its upper end a lateral arm fixed thereon intermediate the adjacent ends of the needle-bar sections and having a pivotal and sliding connection' with said rocking frame,V wherebv the jogging movementsl are imparted to the laterally'movable needle by a connection with the rocking frame passing through the needle-bar so as to reduce to the smallest bulk possiblethe parts carried by the needlebar nearest thework. The jogging needlecarrier is'preferablyin the form of a slideblock mounted in a transverse slideway of the j needle-bar and having a lateral arm formed with a .stud embraced by the eyed endof a slide-pin entering a radial socket in the crank at the lower end of lsaid crank-rod.
the needle-bar-actuating shaft, thereby imparting two rotations of the loop-takers to each reciprocation of their respective needles. `One of theloop-taker Shafts is mount-- ed in a fixed bearing bracket and the other upon a jogging `frame having a fulcrum vtransverse to saidv loop-taker shafts and tov the intermediate shaft and`v provided with a lateral arm connect-ed vby a` pivotal pin with a block apertured to .embrace an actuating eccentric loosely mount-ed upon said intermediate shaft and rotating at one-.half the speed of the needle-driving shaft.
The jogging frame carries a holding arm adapted to` engage a portion ofithe threadcase of the jogging loop-taker to restrain it from rotation therewith and in this arm is secured a thread-controlling finger adapted to engage'the lower thread of the jogging lloop-takerand to take up and giveout slackrespectively in' the in-throw and out-'throw of the loop-taker relatively to the fixed or Arectilinearly vreciprocating needle. This lfin"- ger also serves to control the lead of the needle-thread `between the loop-taker andthe fabric as it is drawn up by the take-up.
y 'The invention will be understood by reference to' the accompanying drawings, in which-4 Figure 1 is a sectional side elevation ofa sewing machine embodying the present improvement,.and Fig; 2 aplan view thereof taken from the lowerside. -Figq is an elevation of the stitch-forming mechanism and the loop-taker jogging' means, looking to-. ward the frontend ofthe machine. Fig. 4.- is an elevation upon an enlarged scale of the jogging loop-taker and `its supporting and actuating means taken from the front end of the machine, and Fig. 5 a plan thereof, representing also the non-.jogging looper, Fig. 6 is a side elevatiompartly in section, of the jgging-looper supporting frame and the looper-driving pinions.A Fig. 7 is an elevation, partly in section, of the needle-bar and a portion of the needle-jogging means, and
Fig. 8 aperspective view of the needle-jog' ging crank-rodv and 'certain lof its connections. Fig.'9 is a perspectiveview showing the fixed and jogging needle-.holders and the adjacent portion of the' needle-jogging mechanism, withcertain 'of the parts detached from the others tofeXpose the gconstructive features. Fig-10 v is-'af perspective View of the jogging` needle-'carrier detached. F1g.
` 11 is annnder sideview'of the parts `repref 4sentedin Fi 9, and Fig. 12 a similar viewof a modi cation showing two needles mounted in the-jogging needle-holder. Fig. f 13 is a perspective v iew representing the` under l'side of the throat-plate .with -lts needle-guard` and needles extendingthrough the same.v Figs. '14, 15 and 16 are plan views representing sections of -the fabriewith the I .marginal portions thereof covered respecwith Ithevbed-plate-.l and bracket-arm comtions 8 and 9 of the tubular needle-bar. The
fas'
tively' by straight-away and* simple zigzag.
lines of stitches, straight-away andancho-red zigzag lines of 'stitches and straight-away and double zigzag lines of stitches.
The frame of the machine is constructed prising the hollow?, standard 2 and .the overhanging tubular member 3 terminating in the hollow head 4 vformed at the top with [the boss 5 aiording the upper needlefbar bearing and 'at the bottom with the member 6 having the bushing 7 afordingthe lower needle-bar bearing, in which-#bearings are journaledthe spaced upper and lower secadjacent end portions of the needle-bar Sections'are rigidly coupled'together by means 'of a splitv collar 10 clamped thereon by screws 11 and formed in one side'intermediate the ends'with a deep notch 12 extending beyond the opposite side of the needle-bar,
i and carrying atthe opposite sidea lateral stud 13 embraced'by the a ertured lower. end of the link 14 connecte -with the usual crank-pin 15 upon 'the take-up cam-cylinder 16 fixed upon the forward endv of the rotary main-shaft 17 The lcylinderl is provided with the cam-groove 16 entered by the roller-I stud 18uponthe lateral arm 18 of the takeup arm 19 mounted upon the fixed fulcrumstud 20.
AAs shown herein, the main-shaft 17 has ixed'thereon the switch-cam`21 having the grooves 22 entered by the follower 23 pivotally mounted by means ofthe pin 24y upon the lower arm 25 `of a rock-lever fulcrumed at 26 upon the arm 3 and having an upper arm 27 upon'which'is adjustably secured.`the shouldered stud 28 passing throughv the yslot 27 .of said arm and provided with the clampenut 29. The stud 28, which in prac-v tice is formed with a spherical extremity is embraced byA one end 'ofa link 30 whose apertured opposite end embraces the ball screw-stud 3l tapped into the laterally pro- A4jectingboss 32 of the rocking frame 33 yoked to form the spaced members 34 and 35 embracing the' bearing boss 5 and apertured to vtit the needle-bar section `8 upon which said yoke vis journaled to swing, The'frame 33 is bored out to form a guideyway 36 to receivethe pin 37 which is secured by .means of setscre"ws 38 within thegapertured boss 39 o f an arm 40 having a split hub 41 adjustablyclamped by means of the screw 42,1 1pon' the`upper portion of the oscillating-'crank-,rod .43 which is ournaled within the bore ofthe lower needle-bar section-9 and \vhose upper`end .portion is received in a bearing therefor alforded by the upper. needle-bar section 8, as represented in Fig.7, the arm 40 entering the slot 12 of the split ,coupling collar 10 between the adjacent ends of the needle-bar sections.
The rod 43' has'ixed upon its lowerend the 'crank`44 formed with a radial socket 44 .entered by the sliding-'pin 45 having the transverse boss 46 apertured to form the eye 47 embracinga stud 48 carried by the rearwardly extending arm 49 of the needlecarrying slide-block ISO-which is provided with the.depending-portionl having the usual .needle-Socket 52 in which is secured by Ameans of the setscrew 53 the' laterally jogging needle 54. The slide-block 50 is fitteclwithin a transverse slideway 55 in the liXed needle-,carrier 56 formed with the lateral slot 57 for the arm 49 of the slideblock 50 andbaving the depending part 58 Iwith needle-socket 59 in which issecured hy -means of the set-screw 60 the fixed needle 61.
As Willbe-seenv .byreference more particularly to Figs. 3, 11v and 13, the needle 5 4 performs its lateral jogging movements in a plane rearward of the fixed needle 61. To facilitate the assembling ofthe parts, the arm 49 is provided with a shank portion entering a'slot in the block 5() in which it is ing with that of the needle-bar, while the jogging needle 54 has in addition to its endwise movement a lateral jogging movement communicated thereto through its connection with the oscillating rod 43 housed within the hollow needle-bar'and having a sliding and pivotal connection with the rocking frame 3 3 which derives from the switch'- cam 21 upon the main-shaft its rocking movements of one-half the frequency of the needle-bar reeiprocations Adjustably secured upon a seat 66 upon risate? the underside of the bed-plate by means of the screws 67 passing through slots 68 therein, is the .foot 69 o-f a bracket formed with a bearing boss70sin .which is journaled the rotary loop-taker shaft 71 upon the upper end of which is xed lthe loop-taker '72 formed with the loop-seizing beak 73 coperating with the iixed needle 61 and having taker shaft 8.7 and to the plane of lateral movement" of the jogging needle v5,4. The pins 82 are secured by means of set-screws 83 within spaced bosses 84 of av jogging frame 85 formed with an upwardly eXt'end-I ing bearing member .86 in which is journaled the loop-takerv shaft 87 upon which is fixed the jogging loop-taker 88 which isprovided `with the beak 89 adapted for coperation with the jogging needle 54 and having ournaled .therein the non-rotating thread-case 90 formed -with the laterally vextending finger 91 and `containing the lower thread .bobbin 92. The jogging frame 85 is formed with the divergently extending lateral arms 93 formed with the'perfora-ted bosses 94 in which vis secured by means of the set-screws A95 theslide-pin 96 disposed parallel with-the fulcrum-pins 82, and enteringv a-transverse aperture in the block 97 which has a second aperture fitted tothe actuating eccentric 98,
as represented more particularly in Figs. 1
and 2. y
Journaled in the depending bearing members 99 'ofthe bed-plate is the horizontally disposed intermediate shaft 10Q arranged in transverse relation both to the 'loop-taker' shafts and to the fulcrum .of-the jogging frame 85 and having fixed thereon by means of the set-screw 101 the bevel-pinion 102 meshing with the similar pinion 103lsecured upon the lower end 'of the loop-taker shaft 71, and having a second bevel-pinion l104 secured thereon by means of thev set-screw 105, and meshing with La similar pinion 106 which is fixed upon the lower end of the loop-taker shaft'87. The fulcrum-pins- 82 are so disposed relative to the pinions 104 and 106 that their aXispasses approximately through the intermeshing point of, such pinions so Aas to permit the slight tilting movement-of the frame 85 without materi-4 ally\aifecting the intermeshing relation of such pinions.l As represented in the drawings, the part of the frame 85 intermediate" the bosses 84, is cut out to afford clearance for the pinions 104 and 106.
` Thelinterinediate shaft has fiXed its rearward end by `means of" the set-screw 107 the hub 108 of the pinion 109 which meshes with the gear-wheel 110 havingits hub 111 secured byaneans of the set-screw 112 upon the] lower shaft- 113 which is formed with quartering cranks .114 connected bymeans of the pitmen 115 with the similarly arranged craks 116 formed i-n the main or needle-driving shaft 17. As the .plnion .109 is one-half the size of the gearwheel110, and the bevel-pinions 102, 103,
104 'and 106 are uniform in size, it will be observed thatv the loop-takers 72 and 88 derive from the main-shaft two complete rotations for each reciprocation lof the needlebar.
vThe eccentric 98 is secured u'pon the hub '117 of a gear-wheel 118loosely. mounted upon the intermediate shaft 100 and held against lateral displacement thereon by means of the thrust-collar 119. Meshing with the gear-wheel 118 is the pinion 120' whose hub 12.1 is adjustaldliy secured upon the` shaft 113 by means of the set-screw 122 vand serves to `impart to the eccentric,`
through the gear-wheel. 118, rotations at one-half. the speed of theshaft 113 and the connected needle-bar actuating shaft 17 Byv the means described, the loop-takers 72 and 88 are caused to perform uniform circular movementsI in which their excursions from an initial position', such as loopseizing position,` are'performed with greaterfrequency than the lateral jogging move- 'ments of the needle 54 and the loop-.taker support 86.` I'lie'relation between the rotat` lCO ing meansV and the. jogging means'of the lat.- A
erally movable loop-taker 88 is such that the coperative relation of the loop-taker with its respective needle is uniform regardless of their lateral positions.
It is evident that, not only must the loop:
taker bea-k cross' the needle-path just after the needle 'begins to rise for presentation .of
its thread-loop thereto, but that'the 4beak must move close to the needle, whatever the latterslateral position,' at the loopseizing instant.- Compensation for variations in .the lateral position of the needle at such timemay be eected in either of two ways. rllhe loop -taker may follow 1 the' needle-jogging movements in the amplitude lof its lateral movement, in the customary manner, or a fixed period of uniform lateral movement thereof may be advanced or delayed in timing so that any excess of such `uniform `maximum lateral movement may occur after the loop-seizing instant, the further and superfiuous lateral movement of the -looptaker being immaterial as regards the cooperation of the stitch-forming elements. In other words, so long as the loop-taker has the correct lateral position relatively to the needle 'at the loop-seizing instant, it is Wholly immaterial Whether thereafter the vloop-taker continue a lateral movement thenvin progress'or immediately perform a retrograde movement. The second of the' alternativesabove described is. that adopted in the present embodiment of this invention.
lThe compensative lateral loop-taker movements are ei'ected in the present instance by resetting the pinion 120 upon its shaft by temporarily loosening the set-screw 122` so. as to advance or retract the loop-taker jogging, cam 98 circularly for bringing the loop-taker laterally into operative relation with the needle When in loop-presenting position, lbut prematurely as regards its (the loop-takers) further range of uniform lateral movement. It is, of course, unnecesj sary that the loop-taker should be laterally stationary, or at the point of reversal of its lateral" movements, duringl the loop-seizing action, so long as -its continued lateral l movement be not of such character as to cause injurious collision with the then rapidly rising needle. nism, the loop-taker has so little bodily lateral'movement andl theneedle performs its rising movement so rapidly relatively there-4 to, that thereis no interference betweenthese stitch-forming elements.
. lever 25 27, any changes in the amplitude of lateral movements of the needle insuring the.` descent of thevneedle alternately in eX- treme positions equi-distant from such neutral position, in the present machine. is thus evident that adjustments of the looptaker-jogging mechanism to correspond with a .given amplitude of lateral movements of the needle will cause the loop-taker to cooperate with the needle exactly -the same in each loop-presenting position thereof.
The bearing member 86 of the. jogging loop-taker sustaining frame. is Aprovided with a lateralyseat beneath the loop-taker upon `Whichnis secured by means of'the fas-` tening screw 123 the. foot 124C of a holding arm 125 extendingxupwardly land terminating in a ,member 125" formed in' its-lower 4 faclegwith'fthe notch .126 to lreceive the laterally? extending finger-91* of the thread-case 90',A` andad'apted to vrestrainthe latter against rotary movement 'with .the loop-taker. 88..
The-arm 125 is formed With a lateral lug 127 having a socket in which is secured by means of the'set-screw 128 the shank of the thread-controlling finger 129 which is disposed substantially-upon ja, level with the` top of the loop-taker and intermediate the latter and the path of reciprocation of the jogging needle 54. In order to prevent't e escape of the thread which it controls, tie finger 129 has a lateral extension 130 at its extremity.
Secured upon the bed-plate is ther throatplate 131, constituting the Work-support Which is formed with the usualfeed-dog apertures 13 2 and the needle-apertures 133 and' 134, the former being inthe form of a transverseslot to accommodate the jogging needle 5-1. Secured upon a seat intermediatethe feed-dog apertures by means of screws 135 is the needle-'guard 136 formed with the usual oppositely. facing grooves137 to receive the respective needles and to -insureA the throWing\,out of their thread-loops Wholly upon the sides loccupied by their respective loop-takers. The throat-plate is shown provided at one edge with dependmg spaced holding lugs 138 embracing the lateral finger 74: of the thread-case 74 to restrain it against rotation With its sustaining loop-taker 72.
The machineis shown providedwith the presser-bar 139 to which is secured the shank of the presser-foot 140"opp`osed to the feed-dog 141' having feed points extending through' the throat-plate apertures 132 and sustained by the feed-bar 142 connected With and deriving operative feeding movements from'the rock-shaft 143 Which rel ceivesits rocking movements from the actuating eccentric 144 through suitable connections, the feed-bar deriving its rising andA falling movements from the rock-shaft 145 Which receives its rocking movements from the feed-lift eccentric 1116.
. In the use of the machine, the loop-taker 72 cooperates With the fixed needle 61 i`n the production of a straight seam and the loop-taker 86 follows the lateral movements of the jogging needle 54 in the production, of a zigzag seam. In .the ordinaryadjustment of' the parts, the overlapped -marginal portions of the sole a and'upper of the tabi are stitched together by the line of 4straightavvay stitching c and the raw edges arebound by 'means of the line of zigzag stitching 'd in which the in-throW punc- -tures of the joggingneedle 541` are in substantial alinement vwith thest'raight row of vpunctures vof the Xed needle 61, as repre-` sented in Fig. 14. When the machine is used in connection with loose-textured fabrics requiring a'm'ore. secure anchorage forV the`binding overseam d, the position of the in-throwv punctures` of the jogging needle maybe arranged beyond the straight-away seam `c by slightlyl shifting the jogging cam 21 upon the main-shaft 17 or adjusting the arm '40v uponthe crank-rod 43; or sidepointed needles, as represented in Fig. 13, may be employed with their points set opineens? positely, and that of the jogging needle arranged in the direction of the in-throw, so
that the threads of the-straightavvay and over-edge seams will be crossed, as represented in Fig. l5. l
To provide for more effectively covering the i'aiv edges of the Work, the slide-block.
50 may he constructed to hold two needles arraiigedin the line of feed. As represented iii Fig. 12, the extension 51 of the block has a socket 147 against one Wall', of
which are clamped the shanks of tWo needles` 5l and'l by means ofthe channeled'block 148 Awith convergently inclined Walls engaging the needle-Shanks and pressed, against the same by means of the clamp-screw 53.
v lVith'the needlecarrying slide-block 50 thus constructed and equipped, a double-zigzag overseam may be produced with the se'ains CZ and rl overlapped upon the upper face of the Work and which may be anchored or ,a circularly movingdoop-taker. cooperating not, as may bedesired, in the straight-away seam 2, as represeiitedin Fig. 16.
lF rom the'foregoing description, it will be evident that lthe present improvement` is' not limited to the specific embodiment here-l in Ashown -and described, but may be lvery `materially modified in the construction and arrangement of its parts Within the .scope of the invention. j
Having thus set forth the nature of the inventionvvhat I claim herein is':-- v
l. In a sewing machine, in combination, a needle, means for imparting thereto endvvi'se reciprocations, and means for imparting to the needle lateral .joggingI movements of less frequency than its reciprocating movements',
With said needle, means independent of the needle-jogging means for imparting to said.
loop-taker bodily `jogging movements transversely of its axis of circular movement and correspondingly in amplitude With the lateral movements of the needle, and means acting upon the loop-taker independently of its.'`
jogging means Land ofthe lateral movements communicated by it to the loop-taker for imparting thereto circular Amovements adapted" f to insure uniform cooperative relation be tween the loop-taker and needle inlaterally different loop-presenting positions of the latter. l g
2. ln a sewing machine, the combination xvith a i'ectilinearly reciprocatingneedle confined to straightaway stitching and an end2 Wise reciprocating and vlaterally jogging needle, of a circularly moving loop-talrer cooperating With said rectilineai'ly reciprocatingr needle, a second circularly moving looptaker cooperating With the laterally ogging needle, means for imparting lateral movements Ato the second-named loop-taker transversely to its axis of movement and correspondingly With the lateral movements of said needle, and means including a shaft ging movements to said shaft.
,vvith Ian end-Wise reciprocating and laterally carrying .independent actuating members with Whichvsaid loop-takers are respectively connected and from -W'hich they derive operative movements.
3. In a sewing machine, the 'combination .with an endwise reciprocating and laterally joggingneedle and an actuating shaft therefor, of a loop-taker shaft mounted independently of said actuating shaft, 'a loop-taker mounted thereon, a. fulcrum upon which said loop-taker shaft is adapted to vibrate in the direction of the lateral jogging movements of said needle, means connected-'tp said shaft substantially at its -fu'l'crum point for. im` parting.` operative movements to said looptaker, and means for imparting lateral jog'- Ina sewing'machine, the combination jogging need-le;- of a loop-taker shaft, a looptaker mounted thereon a Afulcrum upon which said ,loop-taker shaft is -adapted to vibrate in the direction of the lateral jog,-
' ging movements ofsaid needle, an actuating shaft mounted in fixed-bearings, intermeshff ing gears mounted respectively upon said actuating shaft and said loop-taker shaft and direction of the lateraljogging 'movements .of said needle, an actuating shaft mounted in'iiXed bearings and disposed transverse to said loop-taker shaft and to its fulcrum, in` termeshing bevel-gears mounted respectively upon said actuating shaft and the loop-taker v shaft and having their intermeshing point upon substantially the axis of said fulcrum,
and means for imparting lateral jogging movements to said loopftaker shaft.
' 6. In a sewing machine,- the combination with a rectilinearly reciprocating needle and an endvvise reciprocating and laterally jog\ ging needle, of a circularly moving looptaker coperatiiig with said rectilinearly reciprc-ating needle,'a shaft upon which said loopjtaker is mounted, a second circularly -moving loop-taker cooperating with the laterally7 jogging needle, a' laterally jogging shaft upon which the second loop-taker is mounted, a fulcrum disposed transverse to and sustaining said laterally jogging looptaker shaft, an actuating shaft mounted in fixed bearings and disposed transverse to said loop-taker shafts and to said fulcrum, a pair of intermeshing bevel-gears mounted respectively upon said actuating shaft and the firstnientioned loop-taker shaft, a second pair of intermeshing bevel-gears mounted respectively upon said actuating shafty and said `jogging loop-taker shaft a'nd havin [their intermeshingpoint upon substantia ly the axis of said fulcrum, and means for imparting lateral jogging movementsto .the second-named loop-.taker vshaft upon said fulcrum.
7. In a sewing machine, the combination with an endwise reciprocating and laterally Vjogging needle, of a loop-taker shaft, alooptaker mounted thereon, a jogging frame provided with' a bearing for said loop-takerI 3 shaft and with a lateral arm, a fulciumj-pin transverse' to said shaft upon .which` said frame is mounted, `a'fnactuating shaft,'.inter meshing gears mounted respectivelyjupon said actuating shaft and said loop-taker shaftand having their intermeshing point `in substantial 'alinement'with said'fulcrum, an eccentric, actuating means therefor, and
a connection between said eccentric and the lateral arm'of sadjogging frame ferimparting .lateral joggingm'ovements to the looptaker corresponding with'v those of the needle. 8.`j In a sewing machine, the' combination with' an en dwise reciprocating and laterally jogging needle', of a loop-taker shaft, a loop'- taker mounted thereon', a jogging frame provided With a b'earing for said. loop-'taker.
shaft and with alateral arm, val-f l i'lcrumpin transverse to said. vshaft, uponwhich said l'frame ismounted, an 'actuating shaft, interfmeshing .gears fixed respectivelyupon said actuating. shaft andv s aidf'f Aloop-taker shaft `and having their interme'shing .point in substantial alinement with said fulcrum, an eccentric'loosely mounted upon'saidV shaft, a
connection between. said eccentricl and the lateral. arm 'of said .jogging frame Kfor imparting lateral jogging movements of' the oop-taker. corresponding Withthose; of the "rotating ments from sai'deccentr'ic.
needle', and'.i1`1dependent drivingmeans for 'saidf ctuating shaft and eccentric at different-speeds; 'v
911 I a sewing machine, the combination witlian -e'ndvfvi` reciprocating and laterally jogging needl,A -of .a cooperating loop-taker,
a joggingfram providedwith a lateral arm and adaptdtdsustain said loop-taker and to'ini'partthereto jogging movements correspondingwithlthose .of the needle, a fulcrum for said fr'ame, jaJrotating'eccentric, a block mounted v thereonand formed with -an aperture to embrace-'tha same and "with an aper-` -ture 'transversethereto, and a pin entering; the transverse ffap uitefof said'block and connected with `thel'it'eral armof said frame whereby the ,latter derives its jogging move- 10. In la lsewing machine, the combination with an;v endwi'se' 4reciprocating and laterally jogging needle, jogging means therefoigfand adjusting means for varying-the amplitude ments for consecutive lstitches,
of the needle-jogging movements, of a looptaker mounted for circular movement, means for imparting bodily jogging movements to said loop-taker in the direct-ion of the correspondingmovements of said needle, means forrimparting to said loop-taker its opeiative circular movements, and means foi' varying the loop-seizing position of the loop-'taker beak relatively to the jogging movements vof the loop-taker.
11. In a sewing machine, the combination with ari-en dwise reciprocating and laterally jogging needle, jogging means therefor, and adjusting means for varying the amplitude of the needle-jogging movements, of a rotary loop-taker, a shaft upon which the same is mounted,` a `jogg'zgfingframe in which said shaft is journaleda support on which said frame is movably mounted, an actuating shaft, intermeshing gears fixed respectively -upon'said actuating shaft and said loop- .taker shaft, an eccentric with means for ro- 'transversely to the axis of circular movement of the loop-taker, and means acting upon the loop-taker independently of said joggingmeans and of the lateral movements communicated by it to the loop-taker for imparting thereto circular movements comprisingv excursions from an initial position of greater frequency than ,said jogging movements. i
13. 'In a sewing machine, in combination, a frame, a circularly moving loop-taker, a thread-case journaled therein, a v.support movable relatively to said frame upon lwhich said loop-taker is mounted to perform its circular' movements, means for imparting to the loop-taker uniform circulai'movetained by said support for restraining the threadcase against circularmovement with the loop-taker, and means connected with said support for` imparting toit lateral ,jogging movements transverse to k the axisv of circular movement of the loop-taker.
14. In a sewing machine, the combination with anendwise reciprocating and laterally jogging needle, and an actuating shaft mounted in fixed bearings and from which,
said needlederives operative movements, of l a circularly moving loop-taker having a means susincase? thread-case journaled therein, a loop-taker support adapted to perform jogging movements relatively to said shaft, actuating means adapted to impart to said loop-taker uniform circular movements for consecutive stitches, means for imparting lateral jog-v ging vmovements to said support, and a holding element carried by theloop-taker support and adapted to engage said threadcase for restraining the sagne against circular movement with the loop-taker. 15. In a sewing machine, the coinbinatio with an endw'ise reciprocating and laterally jogging needle, of/a circular-ly moving looptaker, actuating means for imparting cir- 'cular movements to said loop-taker, means for imparting to said loop-taker lateral jogging Imovements transverse to the axis of] its circular movements, and a 'thread-controlling element occupying a position intermediate iiid needle and loop-taker.
'16. In a sewing machine, the combination i with an endwise reciprocating and laterally jogging needle, ofla `circularly moving looptaker, a laterally movable support for said loop-taker, actuatingI means for imparting circular movements' to said loop-taker,
l means connected with said support 'forim lparting 'to said loop-taker lateral jogging movements transverse to the axis of its cirfinger fixed upon said support and occupying a position intermediatesaid needle and loop-taker.
17. Ina sewing machine, the combination jwith an `endwise reciprocating and' laterally jogging needle,- of a circularly moving loop-l taker, a thread-case journaled (therein, a support upon which said loop-taker is mounted for effecting its circular move.- ments, means for imparting said movements tothe loop-taker, means connected with said.
support for imparting to it lateral jogging movements, a holding element carried by said support and adapted to' engage said thread-case for restraining it against circular movementwith the loop-taker, and a thread-controlling linger sustained by said holding element and occupying a position intermediate said need-le and. loop-taker.
1S. In a sewing machine, the combination with a reciprocating tubular needle-bai', of a needle mounted thereonandlaterally movable relatively thereto, means including a connection extending. through said needlebar for imparting lateral 4jogging move-v ments to said needle, and loop-taking means coperating with said needle.
19. In a sewing machine, the combination with a reciprocating tubular needle-bar fixed against rotation, of a laterally movable needle mounted thereon, a` rocking frame fulcrumed concentrically with said needlebar, means for rocking sait7 frame, a crankrod within said needle-bar and carrying a cular movements, and 4a thread-controllingv crank having a connection with said needle, an operative direct connection between said crank-rod and said rockingframe, and loopktaking means-cooperating with said needle.
20. In a sewing machine, the combination with a reciprocating tubular needle-bar and aiixed bearing in vwhich the same is journaled, of a laterally movable needle niounted thereon, a rocking frame yoked vtoembrace said bearing and journaled at opposite sides thereof concentrically with .said needle-bar,-means for rocking said frame,
a'cra-nk-rod within said needle-bar and car-l rying a crank having a connection with said needle, means directly connecting said crank-rodand said rocking frame, and loop-taking means coperating with said needle.
21. In a sewing machine, thejcoinbination ywith a reciprocating tubular needle-bar and a fixed bearing in which the same is journaled,.of a laterally movable needle mounted thereon, a rocking frame yoked to embrace said bearing and journaled at opposite sides thereof concentrically with said needle-bar and provided with a guideway parallel with the latter, means for rocking said frame, a crank-rod within said needle-.bar and carrying a crank having a connection with said needle, ai' direct operative connection between said .crank-rod and said rocking frame, .fi-lateral arm rigidly secured upon said crank-rod and carrying -a guide-pin adapted to enter the guideway of said rocking frame, and loop-taking means coperating with saidv needle.
22. In a sewing machine, the combination with a reciprocating tub'ular needle-bar provided with a transverse siideway, ofl a carrier fitted to and movablewitliin said slideway, a. `needle mounted in said carrier, a
A'rod fitted within said needle-bar and carry-- ing a crank-arm extending laterally therefrom, an operative connection betweensaid crank-arm and said carrier, means for oscillating said rod to impart lateral jogging movements to said needle, and loop-taking means cooperating with said needle.
Q3. In a sewing machine, the combination with a reciprocating tubular iieedle-bar provided with a transverse slideway, of a carrier fitted to and movable within said slideway and provided witha lateral-arm carry formed in separate alined sections,` of a laterally .movableneedlemounted upon one of said sections'thereof, a rod journaled withinthe needle-carrying, needle-bar section and having a bearing in the other needle-bar secvtion, an operative connection between saidrodl andthe needle through which lateral .joggingmovemcnts are imparted to tlie latter, lateral arm fixed upon said rod intermediate the ,adjacent ends of the needle-bar sections, means applied to'said arm external to the `needle-bar for imparting oscillatory` movements to said rod, and loop-taking means coperatingwith said needle.
' `)25. In a sewing machine, the combination "with agtubular needle-bar formed in 'separate alined sections, a collar provided on one side with-a lateral stud and in the opposite vside intermediate its ends withfa lateral notch and affording a .rigid couplinof be tween` the.l spaced adjacent ends-of sai needle-bar, and means connected with said lateral -stud forimparting rectilinear reciprovlaterally -plied to said ary eating movements to said needle-bar, of a movements vLto; r"
.means 'coperating with said needle.
26. Inajsewi'n'g' machine, in combination, a rectilinearly reciprocating V.needle-bar, a needle fixed .theiengV .a laterally movable .needle mounted thereon,- nieans for impartingto.. the secondnamed needle lateral joggin movements relatively to the first-named nee e,floo" king. devices coperating with Asaid needles nthe4 productionI of stitches,
and means for imparting to the one of said loop-takers!coperating with the vlaterally movable needle. lateral joggingmovements corresponding with the lateral movements of said needle. .Y
27;.Ina sewingmachine, in combination, a rectilinearly`- reciprocating needle fixed against lateral movement, an endwise reciprocating and laterally movable needle, feeding mechanism, means. for imparting to the second-named needle lateral 'jogging movements .between points respectively in alinement with the first-named needle relatively l. to the direction of feed and at one side thereof, and loop-taking devices coperating with said needles, one of said devices being adaptmovable needlemounted upon one ed to follow the movements of said laterally moving needle.
28. In a sewing machine, in combination, a reciprocating needle-bai', means for iestraining it against turning, aneedle lixed `thereon against lateral movement, a second and laterally movable needle mounted .upon said needle-bar, means for imparting to the second-named needle lateral jogging Inovements between extreme positions at opposite sides of the first-named needle, and looptaking devices coperating with said needles.
29. Ina sewing machine, the 'combination with the feeding mechanism, of stitch-forining mechanism comprising a rectilinearly re- `0n, a needle carried thereby and movable thereon transversely of the direction of feed .and in a plane at one side of the fixed needle, jogging means for the laterally movable needle, and loop-taking devices coperating with said needles.
30. In a sewing machine, the combination with the feeding mechanism, of stitch-formingjmeclianism comprising a rectilinearly ie-vciprocating needle-bar, a needle mounted thereon andfixed against lateral movement,
a reciprocating carrier moving with' said needle-bar and adapted vfor lateral movement transverse tothe direction of feed, a plurality of lneedles mounted in said carrier and arranged in a plane parallel with the direction of feed, means for imparting to said` carrier lateral jogging movements, and looptaking devices coperating with said needles.
.31. In a sewing machine, the combination with the feeding mechanism, of stitch-forming mechanism comprising a rectilinearly reciprocating needlebar,` a needle fixed there- `on, a carrier mounted upnsaid needle-bar and movable thereon`transversely to the` direction of feed, a plurality of needles mounted in -said carrier and arranged in a plane Yparallel' with the direction of feed, means for 'imparting-to said-carrier lateral jogging movements, a loop-taker. coperating with said fixed needlefandadapted toperform consecutive .loop-seizing operations in the same position, and a loop-taker coperating with the laterally jogging needles and adapted to perform consecutive loop-seizing opwith the lateral positions of said needles.
-In testimony whereof, I liavesigned my name to this specification, in the presence of two subscribing witnesses.
ALBERT i-i. DE von. YWitnesses HENRY J. MILLER, HENRY A. KORNEMANN, Jr.
Vcipggoeating needle-bai', a needle xed there.
ion
`erations in different positions corresponding
US69465712A 1912-05-02 1912-05-02 Overseaming-stitch-forming mechanism. Expired - Lifetime US1162987A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2716953A (en) * 1952-08-18 1955-09-06 Ingolf Felix Friedrich Emil Pa Zig-zag stitching apparatus for sewing machines
US3125049A (en) * 1964-03-17 Sewing machine
US4567837A (en) * 1982-12-23 1986-02-04 Mefina S.A. Sewing machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125049A (en) * 1964-03-17 Sewing machine
US2716953A (en) * 1952-08-18 1955-09-06 Ingolf Felix Friedrich Emil Pa Zig-zag stitching apparatus for sewing machines
US4567837A (en) * 1982-12-23 1986-02-04 Mefina S.A. Sewing machine

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