US1127069A - Sewing-machine. - Google Patents

Sewing-machine. Download PDF

Info

Publication number
US1127069A
US1127069A US58906210A US1910589062A US1127069A US 1127069 A US1127069 A US 1127069A US 58906210 A US58906210 A US 58906210A US 1910589062 A US1910589062 A US 1910589062A US 1127069 A US1127069 A US 1127069A
Authority
US
United States
Prior art keywords
shaft
looper
rock
arm
needle
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
US58906210A
Inventor
George E Molyneux
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.)
Singer Co
Original Assignee
Singer 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 Singer Co filed Critical Singer Co
Priority to US58906210A priority Critical patent/US1127069A/en
Application granted granted Critical
Publication of US1127069A publication Critical patent/US1127069A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B57/00Loop takers, e.g. loopers
    • D05B57/02Loop takers, e.g. loopers for chain-stitch sewing machines, e.g. oscillating

Description

G; E. MOLYNEUX.'
SEWING MACHINE.
APPLIOATION FILED MAY 1s, 1908. RBNEWBD ooT. z5, 1910 Lmg.' Patented Feb. 2, 1915.v
2 SHEETS-SHEET 2,
WITNESSES:
entren sanftes nesten GEDIt-GE E. MOTQIYNEUX, 0F ELZABETH, NEW JERSEY, ASSIGNDR T0 THE SINGER MANUFACTURING COMPANY, A CORPORATIN 0F NEW JERSEY.
SEING-MACHINE.
Specification of Letters Patent.
Patented Feb, f, MM5.,
Application led'lMay 18, 1908, Serial No. @33.382, Renewed. (ctober 25, l. Serial Noiti.
inder-hed machine in which the eedingmechanism moves long;itudinall)T of the work-supporting lied and a. thread-carrying looper. coperating with one or more reciprocating needles in the production of th'e double chain-stitch seam, moves transversely of the direction of 1feed in its loopseizing, and shedding operations and in the direction of lieed in .its needle-avoiding move ments. i
The .invention consists particularly in a, special construction and arrangementof the leonor-actuating mechanism, and it also includes certain other constructive features which will he hereinafter described and pointed out in the appended claims.
In the accompanying drawings Figure 1 is a sectional side elevation of `a sewing machine embodying the present improvement, Fig. 2 a plan of the Work-supporting arm and lower portion of the standard thereof, with certain parts removed, Fig. 3 a front end elevation ot' the machine with the tace-plate of the hraclnt-arin removed, and Fig. fi a rear end elevation of the lower portion of the standard with the main-shaft and parts carried thereby. Fig. 5 is a front end elevation of the work-supporting arin, showing the loopencarrier in elevation. Fig. (i ,a transverse section of the work-supliorting arin' nearethe front end. and Fig. T a
'transverse sect-ion oi'- the work-supporting arm and the feed-har through the fulcruni oi? the latten` l' 8 is an enlarged side elevation oi the leonor-thread take-up and nipping devices. Fia'. an edge 'view ot the. same. and Fig. l() a pian thereof. ll is a detached rear end elevation of the needleactuating rock-shaft and the crank and pitroan through which it derives its rocking movements, and Fig. lla a detail .sectional -emhraced hv one endet a Pitman-rod view of the necdle-actnating rock-shaft 'pio man connection. Fig: l2 is a transverse section oitl the inaiirshaft showing the feed eccentrics thereon and the yadjacent porn tions ofthe feed-har.
As herein represented, the iframe of the machine comprises the hase or standard l, overhanging bracket-arm 2 and cylinder hed or work-supporting arm S secured to the standard by means ot `screw-bolts 4e The standard l is provided upon opposite sides with hearing bosses 5 and -t3 in which is journal'ed the transverse main-shaft 7 `carrying the balance-wheel 8 and belt-wheel 9.
filoni-nailed in the forward bearing l0 and rearward hearinghos's ll is the endivisestationarj.T rock-shaft 152 having upon its forward end diametrically opposed cavities entered hv the conical points 'of the Jfalo-runlsrews 13 by means oit which the l'oopern carrier l5 is pivotallv -rnounted upon said i'oclesliaft, the iulcrmn-screws 13 being' secured. in their desired positions of adjustnient hy means of the loclnnuts 14. The looper-carrier is provided at its upper end with a socket lo in which is secured by means of a fastening scren7 1'( the shank of an eyed looper i8 whose blade is arranged transversely of the rock-shaft l2. The lower' portion of the looper-carrier is provided with a segmental slide-Wai7 19 to which is fitted a slide-block Q0 atl'ording a bearing socket for the hall-headed pin. 2l projecting upwardly troni the flattened end pon tion 2i). of the reciprocatingg rod The looper supporting shaft l2 derives its l rockingmovements h vnieans of a dependingcrank-arm 2t unen its rear end. whose lower cud is embraced h v and pivotallv connected with a pair o?" links QT; which in turn emhrace and are `pivotallv connected with the outer end of a laterallv extending crank-arm 2G mounted to swing in a plane 1parallel with the axis of the main-shaft upon a fixed tulcrunnstud Q7 carried hv a log 28 upon the h'ittonr and near one side of the standard l. The crank-arm E2G is provided near its fulcrum-stud with a lateral hall-crank-pin Q9 3() whose other end is provided with a strap 3l embracing an actuating' eccentric 32 upon 60 'the tui-nin straightening or which produces a dwell in the reciprocatory move'- ment of the louper at its advance position wherein it presents its .thread-loop for eutrance of the descending needles, as repres nted in Fig. ll. The upward movement of the cranberm 26 from straightening position, represented in Figs. l and 4, produces an accelerated circular movement of the rocleshaft and looper carried thereby in shedding the needlethread loops, while the downward movement of the same toward the position represented in Fig. 4, causes an initial-quick neediedoop seizing movement and a subsequently retarded motion to extreme loop-presenting position, The needle-avoidroclzshaft l2, the
' ing movements are imparted to the louper v through its' rocking earner by means of the reciprocating rod in .the bracketarm 2 and lse the lowerl end of the at its upper end wit l bali`-orank 51 carried lend4 of the recleshaft 37. .more'particularly in Figs.
23 pivotally connected at 33 wlth one end ot' an inclined pitman-rod 34 whose opposite end carries a strap 35 einn bracing an eccentric upon the main-shaft As is common to machines producing the double-cl1ainstitc the looper moves in a substantially elliptical path, passing upon one 'side of the needle to seize the needle thread ioops, and movingto the other side of the needle-path to present loops of its thread for passage of the needle in its subsequent descent.
The needle operating roclcshaft 37 is.
suitable bearings carries at its for ward end a crank 3S having a pin 39 emn braced by the uppernd ofy a pitman l0 whose lower end embraces a'flateral crank pin 41 upon the collar 49. xed upon the re ciprocating needle-'bar 43 journ'aied in the head of the braclnetarin` and carrying at its lower end the needle-clamp ad in. whose parallel sockets are secured by means ofthe setscrews 45 the Shanks of' two needles 46 ar ranged in a lineoarallelwil; the blade of the looper '18. The roch-shaft 3? is actu ated by inconscia crank 4f( in the main shaft i which is embraced by a strap 48 at pitmanrod 49 provided h a strap embracing a upon the outer engl of thecranlf-arm 52 fixed upon the rearward As represented 'll and il, the an axial recess mounted, as usual, within ballLcrank is provided with or cavity entered by a pin 54 formed at the upper end of an arm 55 of the washer 56 mounted upon the Pitman-rod i9 and clamped between the lower end of the strap '50 and. the'l-clarup-nut 57. As will be ob# served, the inturned portion 54, of the arm constitutes a steady-pin for preventing of the `y'iitmarrrod 49 upon the cranlmneumers which lit serves to connect,
"uuflicient clearance being provided between recess or cavity 53 to such steady pin and its permit the sxdcwise movement of the pit- .threadguiding eye 75, v of the -ber separated. [is the actuating; yhitman 69 stances top with an opening which is normally closed "byme'ans of a cover 58 hinged bynnieans, of
a `)pin 59 to the spaced lugs 60 upon the flanged end of the worlesupporting'.'t rm 3. The cover 58 may be lifted to give ac ess to the take-up and nipping devices disposed beneath the same within the arm 3, and mount ed upon the bearing lug 6l rising from the.
bottom of the arm.
`Journaled in the bearing' .lug 61 is the transverse rock-shaft 62 carrying the takeup cam 63 anda thread-nipper releasingq cam 64 embraced bv a pair of nippersprings 65 66, secured by means ot' fastening; screws 67 upon opposite sides of the bearing lug Gl, formed with jaws at their upper ends adapted to close together exccpting when the springy 65 is thrust outwardh7 by the partial rotation of the cam 64 as represented in Fig. 8. Upon the lower end of the' take-up cam 63 is a crank-pin 68 embraced by one end of al pitman-rod 69 having at its opposite end a strani() embracing' anactuatins; eccentric 71 upon the mainshaft, from which the take-up cam 63 and its supporting shaft 62 receive their oscillatingmovements. Secured by means of a fastening screw T2 upon the forward side of the bearing lua; 61 is a thread-guide comprising a'shanir 73 extending upwardly and provided at the upner end with three branches 7e elich provided with a threadguidingeyg Z5 and arranged to embrace the upper Voperative portions of the take-up cam and thread-clamping jaws of the nipoer. As will, be readily understood, the looper-thread is introduced through a hole iS-1n one side of the work-supporting arm near its rearward end, and is threaded through an eve '75 of the 'threadguidd thence intermediate the nipperjaws, through the. eve 75 of the ymiddle branch oit' the thread-guide, over the operative edge of the take-up cam, through the eve of the third branch of the threadgaide, and forwardly through the lateral anerture 77 at the forward end of the arm 3 whence it is threaded through the eyes of the looper in a manner well-known.
As lwill he observed by reference to Figs. l and 8, the rocking members (i3 and 64 are in their forward positions, with the earnn edge 63 maintains the thread-engaging' jaws moves torwardly, the cam-edge' 63, actingq upon the looperrthread intermediate the emuppermost and lying closer to the while the engagement A 25.7., cam 64 with the threadlninpinp; mem` i tiene, l a
brncingr branches 74 of the threadsnide.,
serves tn -pull oli thread through the open nippinaf Jaws until the thread springs over the point of the com, when the same is released and the nipping` jaws, are simultanei. fously closed by the oscillation of the cam 64,
the continued motion of thecams to extreme position producing;r no ini-ther action upon the thread. As the cam 63 returns to the position represented ink Fig. 8, its engagement. with the thread passing over the same and now firmly clamped betweenV the nippinp;l jaws, causes it to draw thread through the looperfor setting` the looper loops upon the runder side othe fabric, 'in a manner well-known.
The *feeding mechanism comprises the usual feed-dog 78 adjustably mountedwithin a channel 79x-in the top of a slidevblocliz 79 fitted to the side walls of a slot or guideway 80, in the upper side of the bearing 10 and secured upon the forwerdend of a. re'- lciproe'etinliand tilting feed-bar 81 tittedto K slide within1 a sleeve 82 mounted upon the conicalpointedbearingscrews 83 entering As will be' readily observed, the eccentric 87 `imparts to the feed-bar a sliding movement withinA the pivotally mounted supporting?,` sleeve 82, and communicates to the fced`dog 78 the feeding' movementsfor advancing1 the material longitudinally of the work-suppoi'tinp; arm of the inachine,'wl1ile the eccentric QOarranged at right an'gles'thereto 'upon the mainshaft, ,imparts a tiltingV movement to the feed-bar, upon the bearing screws 83 as a fulcrum, thus communicating' the risingi and fallingr movements to the fced-dogin Opposed to the feed-'dog is the presscr-foot 91 whcse'shunk 92 is provided with a socketattached tofthc lower end of the wesseihbar 93 fitted to suitable bearings in the head of thevbracket-arm directly bee neath the necdlefactuating rock-shaft 37 and thus Vin the plane of the needle-bar parallel with the direction of' feed. Intermfnilatel the bearings of the presser-bar is fixed a co1- n lar 94 lowing arearwardlv projecting' lug- 95, extended through .a suitable aperture inthe head of the bracket-erinv and affording a seat otite upper edge for the outer end of a Het pressure spring- 961- secured at the opper.
siteend by means of e pin 97 upon the lug' 98 upon the .tandard of the machine frame' :1nd engaged lintermediate its ends by thev conicnl pointed adiusting screw 99 tapped inte e boss 10.0 upon the lowered@ et the bracketrarrn and Yprovided with a lok-nutI '101 for. maintaininrv the screw in the desired position of adjustment. engagement with the lower edge of the lug 95 is the cam-portion 102 of the lifting' lever 103 fulcrumed :it 10%. `By the provision of the rearwardly projecting lue; 95 upon the presser-bar 93 with the pressurespring 96, it is practicable to employ arsingle presserlbar directhT beneath the needle-actuating rock-shaft and in line with the needle-bar,
without resort to the'usual auxiliary,siorjnigpressed presser-bar with its...'ieonnections within the head-of the bracketmrm to the primary presser-bar ycarrying.;r the presserfoot.
' As herein represented, the rearward end of the' bracket-arm is provided upon the sidewith a tension device 105 for the looper.
thread @and at the top with two tensionl devices 106 and 107 for the needleethreads, passing through the eye 108 of the threadcontrolling lever r109 and thence through 4spaced eyes in the take-up armk 110 secured to the top of the needle-bemand thence downwardly to the needles 46. The threadi controlling lever 109 is fulcruined by means of ,the screw-stud -111 upon the post 1,121` v mounted upon the head of ,the bracket-amm,
and is connected at the end opposite the eve e5; 1.08 by means of a screw-pin113 with the upper end of elink 114:V pivotally connected at its lower end with a pin -115 having its threaded shank tapped' into the stud of the-y presser-bar 93. As will be observed, the
- position of the thread-controlling lever 199,
isdetermined, through the presser-bar 93,
by the thickness of the material, thus servingto -control'the action oi.V the take-up ermg 110..v I ,l
lThe outer or forward end ofthe Worksupporting arm 3 is provided with the usuel removable cap f116- serving to house the looper-carrier and its immediate connections, -this cap being notchedl in its upper side to receive the forwardly projecting portion of the throat-plate 1,17.
Havingthus set forth the-nature of the inventiomwhat I claim herein is :f.'
l. In a sewing machine, the combination with theA driving shaft, e 'reciprocating needle,l and operative connections between: .said needle and the driving looper, a rock-sheftupon ywhich said .looper is mounted a crankv upon said rockshaft,fefi
shaft, of e.
crank mounted upon a .fixed fulcrum, e link connection intermediate said cranks, a`connectionf. intermediatev vthe second -named crank and the dri-ving shaft for actuating" the .rock-shaft, and; a connectiony 'independ-' ent ofmedewer-supporting rock-shaft between thedriving shaft and said looper .for
' imparting: to thdflatter--movements transverse/to those deriyedi'rom said 1'ock-shaft.
2. in ai sewing; mentire the; ccmbnetion. ist" In operative .seid 'needlewand thel driving shaft, of nwith vthe drivingv shaft, a reciprocating needle, and operative connections between l p er, a" rock-shaft with 'which said looper is eperatively connected,v a crank upon said rocke'shaft, a second crank, e fixed fulcrum fonthe `latter Adisposed parallel .'With said rock-shaft, a, link connection 'intermediate said cranks, avconnectionintermediate thesecon'dmamedcrank and the drivingshaft vfor. fimparting ro'cking 'movements to "the rock-shaft; and an inde endent connection betwen said looper an for imparting movements lthereto transe versely of thosev derived from said rock: shaft..
'3. In a. sewing machine, the
needle, angl operative connections between lsaid vneedliee and .the driving shaft, of a looper, a rock-shaft disposed transverselyy nection between 'said looper and the' driving shaft for limparting movements thereto transversely of those derived from said rock-shaft.
4.' In a sewing machine, the combination with the driving'` shaft, areciprocating needle, a rockrshaft with which said needle is' operatively connected, and means connected with said driving Ashaft for actuating y seid rock-shaft, of a looper, a looper actuating rock-shaft upon' which said looper is mounted with its blade4 vdisposed transversely to and endwise movable in acircular.-
path 'concentric with the axis of motion or' the,L louper-actuating rock-sliaft, a crank upon' said rock-shaft, a crank mounted upon a fixed fulcrum, a link connection intermediete' said cranks, and a connection intermediate the 'second-named crank ernzlthe driving shaft' for imparting rocking move ments to the' looper rock-shaft'.
5. in av sewing machine, 'the combination with the drivingshaft, a4 reciprocating needle, and loperative connections between said needle 'endfthe/driving shaft, of a 'loopen a looper .rock-shaft, a.snuriporting fulcrum 'for'.said looper carried by said` rockshaft and disposed transversely of the axis ofvmlotion of the letter, a crank uponlsaid rock-shaft, a second crank, a fixed ful'- crum for the latter disposed parallel with 'the rockshaft,l a' link connection intermedid late said'. cranks-fa connection intermediate the second-named crank and the drivingshaft for imparting rocking movements to the ,driving 'shaft' combination 'Y with tho'drivi-ng shaft, a reciprocating tentatel the loopei' rockshaft, and means cormectedl .with said looper for rockingl it upon itssupporting. fulcrum. A n
(i.I .ln a sewing machine,4 the combination with the drivingshaftprovided With a ball- 70 cranlgfa reciprocatn needle, arockshaft with which said nee le is 'operatively connected, a crank upon said rockfshat, a ballcrank-pin4 thereon provided with "an 'axial ,Y cavity, a. lpitman mtermediate said balle/F575 crank-pin and the ballfcrank upon tliedriving shaft, a steady-pin, carried by said piti man entering the .axial cavity in said loalln crank-pin, a loopen,- a lQoper-actuiiting rockshai'twith which said-looper is operatively connected, a crank upon saidfloopereactuating rock-shaft, a lcrank mounted upon 'a fixedfulcrum, a link connection 4intermediate said cranks, and a connection intermedi` ate the' secondenamed crank and the'driving 85 shaft for imparting rocking movements to the loopen-actuating rock-sha'ft.. o
.7. In a sewing machine, the lvcombination with the ,driving shaft, n reciprocating needle, and operative connections between said needle andthe driving shafu'of a loopen carrier formed with leguide-way, a rookshaft .upon which said looper --carrier .is transversely fulcrumedV parallel with itsv guide-way,` a loopenmounted upon said' 95' louper-carrier parallel with said guidewny,
-nieans connected with the driving vshaft for rocking said rockeshait, a reciprocating rod parallel with said rock-'shaft and operative connections between said rod and the driving-shaft from whichits reciprocating movements are derived, and a stud carried by said reciprocating rod` and entering thev guide-way Vin lsaid looper-carrier for oscillilting the latter upon its supportingrocks a f 8.' In a sewing mechindjthe combination with the driving shaft;y a reciprocating needle, and operative connections between s'nid needle and the driving shaft, of a looper" carrier formed with a guide-way, a rock'- shaft upon which said llooper-carrier is transversely fulcrumed "parallel with its guideeway, a looper mounted upon said looper-carrier parallel with saidy guide-way, means connected with the driving shaft for rocking said rock-shaft, a 'reciprocatirnparallel with said rock-shaft and cig-c e connections between said rod'and driving' shaft from which its reciprocating movements are derived, a slide-'block fitted to the vguide-Way in the looper-carrier and provided with a spherical socket, and n stud carried bysaid reciprocating rod andy provided v vithl'a spherical end fitted to Vthe socket of said slide-block, whereby the looper-carrielis oscilla'ted upon its support ing rock-shaft.
9. In a sewing machine constructed with' a. frame comprising a standard, a laterally 13o extending work-supporting arm and an overhanging bracket-arm, the combination with the driving shaft journaled within and transversely of said standard, a reciprocat` ing needle, and operative connections intermediate the needle and the driving shaft, of a loopcr supporting rock-shaft journaled in and longitudinally of the work-supporting arm,af-'looi'ieicarrier operatively connected therewith, -a thread-carrying looper mounted upon said looper-carrier, a reciprocating rod mounted within said work-support-ing arm parallel with said rock-shaft and operative connections between said reciprocating rod and the loopercarrier, connections between the driving shaft and the looper-supporting rock-shaft for rocking the latter and between the driving shaft and said reciprocating` rod whereby the latter'is reciprocated, a take-up cam fulorume'd wit in and transversely ofsaid work-supporting arm, an operativeconnection intermediate the same and isaid driving-shaft, andA arpair of thread=guides embracing said takelnp cam.
10. 1n a sewingg machine constructed with a frame comprising a standard, a laterally extending work-supporting arm and an overhanging bracket-arm, the combination with the drivingshaft journaled within and transversely of said standard, a reciprocating needle, and operative connections intermediate the needle and the driving shaft, lof a looper-supporting` rock-shaft journaled in and longitudinally of the work-supporting arm, a loopen-carrier operatively connected therewith, a thread-carrying looper mounted upon said looper-carrier, a reciprocat ing rod mounted within said workrsupporting arm parallel with said rock-shaft and operative connections between said reciproeating rod and4 the looper-carrier, connections between the driving shaft and the loopen-supporting roclvshaft for rocking t'he latter and between the driving shaft and said reciprocating rod whereby the latter is reciprocated, a take-upcam fulcrnmed within and transversely of said work-supporting arm, alateral crank-pin upon said takehip cam, an eccentric upon the driving shaft, a pitman connection intermediate said eccentric and the crank-pin of the take-up cam, and a pair of thread-guides embracing said take-up cam.
11. In a sewing machine constructed with a frame comprising a standard, a laterally `extending work-supportingz` arm and an overhanging bracket-arm, the combination with the'driving shaft journaled within and transversely of said standard, a reciprocating needle, and operative connections intermediate the needle and the drivingshaft, of a looper supporting rock-shaft journaled in and longitudinally of the work-supportingr arm, a4 looper-carrier operatively connected therewith, a thread-carrying looper mount- -ed upon said looper-carricr, a reciprocating tions between the driving shaftl and the looper-supporting rock-shaft for rocking the latter and between the driving shaft and said reciprocating rod whereby the latter is reciprocated, a transverse rock-shaft mounted within the work-supporting arm, a take-up cam and a nipper-releaSing cam fixed upon said rock-Shaft, a pair of springactuated `thread-nipping levers embracing the nipp'er-releasing cam and provided with opposed jaws adapted to engage an interposed thread, means connected with the driving shaft for oscillating said transverse shaft, and thread-guidesthrough which the looper-thrend is led intermediate the nipping jaws and across the edge of the take-up cam.
12. In a sewing machine constructed with a frame comprising a standard, a laterally extending work-supporting arm and an overhanging bracket-arm, the combination with the driving'shaft journaled within and transversely of said standard, a reciprocating needle, and operative connections intermediate the needle and the driving shaft, of a /looper-supporting rock-shaft jour'- naled in and longitudinally of the worksupporting arm, a looper-carrier operatively connected therewith, a looper mounted upon said looper-carrier transversely ot said rock-shaft` means connected with the driving shaft for actuating said rockshaft, independent means also connected with said drivingr shaft for imparting to said louper movements transversely to those derived from said rock-shaft, a feedbar disposed within and longitudinally of said work-supporting arm and provided with yokes each disposed in transverse relation to the other. eccentrics upon the driving shaft embraced respectively bv the volzes of said feed-bar, a bearing sleeve transversely fulcrumed within said work-supporting arm and within which said feedbar is slidinglv fitted, and a feed-dog carried bv said feed-bar.
13. In a sewingr machine. the combination with the driving shaft, a reciprocating needle` and operative connections between said needle and the driving shaft, of a loopersupporting roclffshaft. an operative connection between said rock-shaft and the drivingr shaft, a looper-carrier, a transverse fiilcrum-pin upon said rOCkshaft upon which the looner-carrier mounted upon said looner-carrier, a reciproeating rod parallel with said rock-sha ft, operative connections between said rod and the driving shaft, and a sliding connection is mounted, va looper vinder-bed, a feed-bar alsodisposed longituasA "a frame comprisinga standard,`a laterally 'extending work-supporting cylinder-bed,
andren overhanging bracket-arm, the combination with the driving shaft jonrnaled within saidstandard,`a reciprocating needie-bar oarrying`a`-needle, and operative connections intermediate"theneedIebar and the driving shaft, of a looperssupporting rock-shaft and a parallel reciprocating rod.
'ournaled in. and longitudinally of the cyldinally of said cylinder-bed and slidingly journaled upon a transverse fulcrum-pn, operative connections between the mainshaftfand the loope r-supporting` rock-shaft, the reciprocating rod and the feed-bar, resoectively, a looper fulcrumed upon and transversely of said rock-shaft, an operative connection intermediate said looper and said reciprocating rod for imparting sidewise movements to said looper,lifti`ng means for imparting rising and falling movements to said feed-bar, and a feed-dog carried by said feed-bar.
15. In a sewing machine, the combination with a driving shaft, of a rocksshaft journaled in fixed bearings, a looper sustained by said rock-shaft with its blade disposed n transversely thereof, a crank upon said rockshaft, a crank having a fixed fulcrum, a link connection intermediate said cranks, a connection intermediate the second-named crank and the driving shaft for actuating the rockshaft, and means for imparting to said soA looperl movements lengthwise of said rockshait. A
16. In 'a sewing machine, the combination with a driving shaft, of a rock-shaft journaled in fixed bearings, a looper sustained by said rock-shaft with its blade disposed transversely thereof, a crank upon said rockshaft, a crank having a fixed fulcrum, a link connection-intermediate said cranks, a connection intermediate the second-namedl crank and the drivingshaft for actuating the rockshaft, and means for imparting to said loopery movements relatively to and lengthwise .of said rock-shaft.
17. In a sewing machine, the combination with the driving shaft, of a. l.oopersupporting rock shaft, an operative connection between said rock-'shaft and the driving shaft, a looper, a loopencarrier, a transverse soA fulcrum-pin upon said rock-shaftupon which the looper-carrier is mounted, a reciprocating rod extending lengthwise of said rock-shaft, an operative connectionhetween said rod and the driving shaft, a support for said rod remote from said vconnection and independent of the loope'r-carrier, and
an operative connection between said reeiprocating rod adjacent its support and the looper-carrier for said fufleruIn-pin'.
18; In a. sewing machine, the combination with the driving shaft, of'a loopersupporting rock-shaft, an operative connection between said rock-shaft and the driving shaft, a looper, a looper-carrier, a transverse fulcrum-pin upon said roekkshaft upon which the looper-carrier 1s mounted, a reciprocating rod extending Alengthwise of said rocl'e shaft, an operative connectionbetween said rodand the driving shaft, xed bearings spacedi apart and adapted to' sustain .said reciprocating rod, and an operative connection between said reciprocating rod and the looper-carrier for rockirigthe loope-.r upon said fulcrum-pin. I
19. In a sewing machine, the combination with the frame comprising a hollow standard and'a tubular work-supporting arm extending laterally therefrom, of av driving shaft journaled in said standard transverselyy of said arm, 'a rock-shaft mtunted within and longitudinally of said arni and conined against endwise movement, means connectedv rocking. the looper yupon with the driving shaft for rockingsaid rock-1 shaft, a transverse fulcrurn-pin sustained by said rock-shaft, a, looper mounted upon said fulcrnm-pin and having a loop-seizing blade disposed transversely of said rock-shaft, 4a..
reciprocating rod embraced, by and extending lengthwise of said arm, a pitman con. nection hetween said driving shaft and the reciprocating rod, and a connection between Said rodand'the looper.
20. Inasewing machine, the combinaticiiA leo with-the frame comprising a hollow standL y ard and a tubular work-supporting arm eX- tending laterally therefrom, of a drivingv shaft journaled in said standard, a rock' y shaft mounted within'and longitudinally of said wholly by said standard and exterior to said arm between the driving shaft and said rock shaft for imparting rocking movements to the latter, a looper mounted upon and deriving loop-seizing movements from said rockshaft, and a connection between said looper and the driving shaft and extending through arm, an operative connection embraced, f
said arm atthe side of the rock-shaft :torv
imparting to said looper movements trans# versely of those derived from the rock-shaft.
21. ln a sewing machine, the combination with the frame comprising a hollow stand-4 ard and a tubular work-supporting arm-ex# tending` laterally therefrom, of a drivingv shaft journaled in said standard,' `a rockshaft mounted within and longitudinally of said arm, an operative :connection ein,
braced wholly by said standard and eterior to said arm between the driving shaft'anil said rock-shaft for imparting rocking mover, ments to the latter; a `louper 5naintedYupon"l 5 and deriving loop-seizing movements from smid rock-shaft, und i connection between smid looper und the driving shaft and eX# tending through said :irin :it the side of the rock-shaft for imparting to Said looper movements transversely -of those derived from the rock-shaft. the said connections of the roch-shaft und the looper with the driving` shaft being disposed upon the side of the rock-shaft adjacent the Work-supporting arm.
In a sewing ninchine, the combination with the driving shaft, of e looper, a carrier therefor, looperterrier is transversely iulerumed, means connected with the driving1 shaft-for rocking said rock-shaft, e reciprocating rod e rook-shaft upon which the extending lengthwise of the rock-shaft, means independent-0f the looper-ctrrier for maintaining seid rod in ixed lateral relation with the rock-shaft, operative connections between said rod :and the driving shaft from which its reciprocating movements are derived, and u stud carried by said reciprocating rod and connected with said loeper-carrier for oscillating the latter upon its supporting rock-shaft.
In testimony 1whereof, I have signed 1ny naine to this specification, in the presence of two subscribing` witnesses. v
, GEORGE E, MOLYNEUX. Witnesses l-l. A. KORNHMANN, Josemi F. JAQUITII.
US58906210A 1910-10-25 1910-10-25 Sewing-machine. Expired - Lifetime US1127069A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US58906210A US1127069A (en) 1910-10-25 1910-10-25 Sewing-machine.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US58906210A US1127069A (en) 1910-10-25 1910-10-25 Sewing-machine.

Publications (1)

Publication Number Publication Date
US1127069A true US1127069A (en) 1915-02-02

Family

ID=3195222

Family Applications (1)

Application Number Title Priority Date Filing Date
US58906210A Expired - Lifetime US1127069A (en) 1910-10-25 1910-10-25 Sewing-machine.

Country Status (1)

Country Link
US (1) US1127069A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3285210A (en) * 1962-10-13 1966-11-15 Pfaff Ag G M Looper drive for chain stitch sewing machines
US3301207A (en) * 1962-10-24 1967-01-31 Pfaff Ag G M Looper drive mechanism for chainstitch sewing machines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3285210A (en) * 1962-10-13 1966-11-15 Pfaff Ag G M Looper drive for chain stitch sewing machines
US3301207A (en) * 1962-10-24 1967-01-31 Pfaff Ag G M Looper drive mechanism for chainstitch sewing machines

Similar Documents

Publication Publication Date Title
US1127069A (en) Sewing-machine.
US939548A (en) Overseaming sewing-machine.
US924903A (en) Sewing-machine.
US1127755A (en) Looper-actuating mechanism for chain-stitch sewing-machines.
US1001809A (en) Needle mechanism for sewing-machines.
US978267A (en) Thread-controller for sewing-machines.
US554626A (en) murphy
US1016488A (en) Overseaming sewing-machine.
US1085801A (en) Looper mechanism for sewing-machines.
US1107659A (en) Chain-stitch sewing-machine.
US1133608A (en) Sewing-machine.
US1100373A (en) Feeding mechanism for sewing-machines.
US582691A (en) Double-chain-stitch sewing-machine
US1257464A (en) Lower-thread mechanism for chain-stitch sewing-machines.
US197107A (en) Improvement in take-up mechanisms for sewing-machines
US1283478A (en) Looper-actuating mechanism for sewing-machines.
US966431A (en) Sewing-machine.
US1243159A (en) Overseaming sewing-machine.
US998770A (en) Overseaming sewing-machine.
US1156839A (en) Sewing-machine.
US1140679A (en) Double-chain-stitch sewing-machine.
US734574A (en) Chain-stitch sewing-machine.
US89040A (en) Improvement in sewing-machines
US645833A (en) Chain-stitch sewing-machine.
US1005831A (en) Sewing-machine.