US1142082A - Multiple-needle sewing-machine. - Google Patents

Description

a mail L H. ELCHHORN.

MULTLPLE NEEDLE swm meme.

APPUCATIOH FlLED DEC. 3, 1910.

l 5,142,982. K 'Patented June. Si 1915.

2 SHEETS-SHEET i.

P. DIEHL L H. EICHHORN. Humm NEEDLE sEwmG mcnme.

1,142,082. APPLICATION FILED 056.3. 1910- PatentedJune 89 2 SHEETS-SHEET 2.

w/messfs.- v fr/ oRs dan.,

El AEE? HEELJA'NN EICHHORN', QF ELZBETH, NEW' JERSEY, ASSIGNRS m. ffy fonce-rn Ee it known 'that WeT PEUR .MXN Eiei'fiioni. citizens of the United at Eiiaayeth. in the county :nte o' New Jersey, have. invented eerfaain new anni useiui improve mens in Mnitipie-Needie .Sewing-Machines, of iviieh ehe feiioiving is a speciifiezd;ion7 reference being ha@- therein :Eo ehe accompanving drawings.

This invenion reiaes io an improvement in sewn' ls' in; ,hines for promising simultaneivusi)y iarlfge number of paraiiei seams; and ii has: for is ohliect 'to provide a con struction of he operaive parts having 'he requisie reng/"h anci ane: to inuve uniform aciion of the st i i DEEL anci ui feeding mechanisms upon he Worx and theY convenieice of contriA oi the needle- Z rh (iin ihren ing' up ihe machine.

" preieirediform Ahe @resem invenan improvement in the mane' #line suiii'eet of the United Si' kio i). Di and i?. Hough 25 Q23. 1897. cerhened ano @them .nodi ieri ioin' eff oiveness oiE ooeraion vvi'rh f' emp ovmentof a iarfge niunher oi nee; nd coioerating i one endoil a au?. embraces a vpivahned and spaeef. hearing efhar' in ihc n o' a 31u; "n ihc nei iu'aekee the 'o i' .ne driving au n @peiling io 411i [i romierion Nui.. ,ic inea'rs ing' (he needics al fu'm Specification of Letters atent.

, 191C. Serial No. 395,356.

1o insure effectiveness and e0m to pernii a comparatively dihe hrearis ifrom rear te front z e o aid in rethreading when threads inieixnediate the end needies are broken. rae mechanism includes hiteraiiy adjustable feed-hays adapted to be shifted to suit the various groupings of the needies when. unequaiiy spaced, and presser-feet having douhie pivotal connections wih the presser-bar to aceommodaie themselves to he vvoi'i; uncer various Conditions and insure -he proper grouping of the same throughou the Width of fabric to oe stitched to efee the uniform advance of the entire portion oi he fabric Within the 'range of action of ihe stitch-forming mechanism.

in the accompanying drawings, Figure l s a sectional eievaiion of a machine em ,io-ving he present improvements, Fig'. 2

a h1 tom pian vievv of 'the same, Fig. 3 a

view sheivine-u von iarfer scaie )ortion n *o ihe iie ecik-'tiiead eusion mechanism. G is a perspective view oi the compound ser-foot and its conneetion iaith the rr. ser-har.y and Fie'. T a sectional pian view .i portion hereo'r. Fig. 8 is a perspective 4 vieu' oi' one of the feed-dogs.

''heframe comprises the usual hed-plate i and theoverhanging hraeketarm including ou' standard 2 and iai' rally extentiterminating' in the hoiioiv i ouiar arm s; hcaa 5 having ihc eavity 5 dosed in its outer side hv m aus oi" he 'ice-'oie-e G. Journaied anfi iongiiiuhnaiiv of the bracketmain-si'iai'ii carrying' rearu'am euri the iraianeeavheei -8 i ff a iifii'tion oniv (if-which l) anii'having adjacent the {ei' aci :aing cranilr 1C* and ...Cceniric l1.' Fixed upon he emi of the mainLshaiit-,'wihin the the smirk-head l@ carrying the ibv one'cnd of' a piopposite emi is eni'erwi ity of the bracket-arm head 4' in which it is conned by the cross-bars 18 secured in position by the' screws 19; and the needle-bar is cut out at its rearward edgey to form a rectangular recess 17X extending to or be-` yond the center of its width to'embrace the described f crank-and-pitman connection vof the needle-bar with the actuating shaft 7.

The bearing bosses 16 are disposed' at the lower end of the recess 17".

To the lower end of the needle-bar is `Secured by means of fastening screws 20 the notched shank 21 of a cross-barA .22j having near the ,upper edge of its rearward face beneath the lower end of the .needle-bar' a longitudinal channel-way 23 intersected" by a series of posed in a line substantially parallel with .the shaft 7 and leading f com the lpwer ed e,

' cross-bar 22 is provided' at the lower edge I and in which are securmtfby means of t e set-screws 25 the Shanks 26 ofthe needles 27 whose upper ends are abutted against the upper wall of the channel-way 23.. The

of its front face with a vlateral lip 28 formed with thread-guidin apertures' 29 through which the needle-t eads are led to their respective needles. The devices just def scribed afford a simple and effective construction off' the needle-clamping means, which has the advantage of cheapness of construction and insures precision in the setting of the needles of the entire series.

To the back of the bracket-arm head 4 is secured by means of the screws 3.0 the foot of a bracket 31v alfording a support 32 upon which is secured the boss 33-of the cross-bar 34 disposed substantially parallel with the main-shaft and having upon its upper face adjacent the opposite edges the raised marginal seats 35 and 36 and theintermediate depression- 37 Supported by and having their enf'portions resting upon the marginaljscats5 and 3'6 are the parallel lower tensionplates 38 with the crooks 39 intermediate their ends entering the. depressions 37 of the cross-bar 34.

Overlying and arranged correspondingly with the lower 'tension-plates is a series of parallel upper tension-plates 40 each formed intermediate its ends with` a thread-guiding 30 eye 41 entered by a slit 42extending from one edge and having an upturned lip" 43 to aid in cliretingA the thread l`into the slit in threading. Iliz thread-guiding eyes are disposed above the crooks 39 in the lower tension-plates and serve to direct the nee parallel needI'-'sockets 24 dis-" ard exemaiemnsever'- ormed with registering?aperturesv entered by the stud-pins 44 projecting from'the mar.-

grnal seat 35 of the -fcrosebar 34,'and said tension-plates are also i'provided' with addi-- tional registering'a ertures entered by tho threaded T shanks. o tapped int'o' the cross-bar 34 intermediate .the marginal seat 35. and the depression 37,

ward end portion of the 'upper tension-plates upon the lower tension-plates may be adjusted, and the tension-p ates-may be main'- tained in position. v

:To the front edge of the cross-bar 34 is secured by'means of the- screws 46,1; p late 47 -having' at intervalsin its up er ed i eco-.` ther upper@ tensifm-plates;` the. vguide-apertl''es 48 with openings at the upresponding in .spacing apart wit v'theft eyes 41. of

per sides to facilitate threading,`these guideapertures affordingy means, in conjunction with the 'de-eyes 41 toinsure the lead of" whereby'the-pressure 'of-the operative forf` l the threa .intermediate the upper and lowerA tension-plates. Y l. The needle-bar 17 has secured to itsu per end by means of the screws 49 the sha 5 0 of .a forwardly inclined transverse take-up bar51 having a series of thread-guiding eyes 52 connected'by slits 53 leading .to'the upper edge ofthe 'ide-bar'for admission of the needle-three s laterally into the eyes 52; and adjustably4 secured within a socket in the bracket-arm -head'adjacent and rear' ward of the needle-bar, by means of the set-screw 19",.is the vertical post 5 4 carrying at its* upper end the transverse thread-cony trolling rod 55 which is disposed intermediate-the tension-carrying crossbar 34 and the position assumed b the guide-bar -51' Whn the needle-bar is vetween its extreme positions. f v

Secured upon a suitable boss 56 upon the front of the bracket-arm head by means of fastening screws 57 is vthe foot 58 of a transverse guide-plate 59 formed with a series of thread apertures 60 spaced correspondingly withlthe apertures' 52 4of the. take-up bar 51 and the apertures 29 lof the needleclamp bar 22. The needle-threads are led from their respective sources of supply through the apertures 41 of the upper tension-plates .and beneath the upper and lower tension-plates,l through the guide apertures 48 of the plate 47, thence above'the threadcontrollingxrod 55 and throughythe threadeyes 52 of the take-up bar 51 downwardly through 'the eyes 60 of the guide-plate 59, through the apertures 29 ofthe needle-clampv into the eyes of their respective needles.

Inthe positions of the parts representede130 I in Figs. 1 3. the needlebe is approachinff it 'pijler posi the. tekois performing l engaging the nec e he stationary tnrezul-giilding ineinbfes nnd 59. is the needle-bei' descends, the take-up member continues to give slack until the thieads deposited upon the top of the con'iiolling rod 55 which niests die slaei 'ii'ing action and causes the idle continuation of the descent of the take-up member 5?., tlnongh whose guide-eyes the thiezid iendns inellfectively es the needles descend and pesent their loops to the respective loopeis which `seize i and dietend the. saine for passage ofthe vneedles-in the. succeeding descent. The rise somme o supply to their respective needles with the utmost directness, in order that in rethreading a needle inte-:mediate the ends the course of individnal'thiend may not be confused with those oiedjacent thi'eads. This condition is entiely ob'fleted eccoiding to the present improvement so ezrenging the tension novicess tlg 'if ipineinbei 5l, and 'the mrlons threadeeyes, lead of each of the thieeds isfioin 'rees to?? the machine and downnaiidlyin is n machine, so that e person stationed in liront of and slightly ebovehe'.niziohine niej; see at the seine time tne full lengthlo enen thread Le point wlieie itfeneis the tensioi it emefges from 'the needleneing maintained substan- :it the front and divei'ging plete Y l is similarly slots formed d Kfer ity of the em'iinrfllj oi parallel bearing slots and oonineens ot' the www: 'l y townid its upper reni end nests the bracket oi'iilie serew een' in the en;

Mounted upon bzi'ped into the ioiw;

bei` et its loi'ver'end is the hub (S9 of :i rocking cross-bnr or rock-levee IO having its opposite ends the depending mins 'Tl into which are tapped the piiotal scie ends pissing through the shenlis of two roc-kino' @lesser-feet, each of which shenks 'formed with the oppositely extending bosses ll enibiaced by and pivotelly connected by ineens of the studsorews i5 with the spaced eers 76 projecting from the top oi the foot-plate 77 formed with the elongated needle apertures 78. Each of the presser-foot shonlis 73 is foilned in its yearn/ard side with e channel 73X somewhat Wider then the flepending erin 7l of the rocking @Toss-bei' 270, Whose side Walls afford stop'shonldeis to limit the i'ocking movement of the piesser- Jfoot upon its pivotal stud 72', and the range of movement of the crossbnr is coni-espondnglyrlimited by means of the stoppins I9 liXed upon and disposed near the opposite edges of the presser-bm: Lund slightly above the. lower edge of the cross-bar. s will be seen from the duin*ingst the *fnl- Crum-studs 69 and T2, forming a double pivotal connection between the messer-bai' und the presser-feet, ae disposed in transverse relation to the presse bei to the needleaotuating shaft 7, whereby the piesser-feet are adapted for bodily vertical movement and tilting movements ieletively to the bedplate, While the pivotal connections 75 trans verse to said ulciinn-etnds permit the tilting of the foot-plates upon aries parallel with the needleectueting shaft relatively to their respective Shanks. l

The loop-taller actuating crank l() is einbzaoed by a strap S0 ne the upper end of a connecting rod Sl, eyed at its lonvi' end to embrace the stud-sciew 82 coiiien by :in eiin 83 of the rocking sleeve Se ionrnnled upon center-screws S5 belen' 'the hed-plate l and having e second aiin 8G cniiying n stud screw 87 Aembmced ,by one end of n bent link 88 /Whose ogposite end einbieees a crank-pin 89 upon ev lnteiil ann 90 lixed upon the loopen i'oclsliait 91 jom'nnled in. the bearing depending from the bedplnte and formed in its loirwm'd end with e socket in 'srli'io-` secured by ineens of" a set-screw 93 the fenice/d feel-wurd end 9i of the loopeibzn carrying n series of hooked loopeis 9-(3 cofrespondin T nnnifei end spacing with the needle 'the feduced opposite end 91x: oif' the leonor-boi' being journoled in n suitable bearing Si depending from the ifozfn'ei'd end oi the bodplate. s described in the sind patent, the connections between the activating wml( lo :ind the loopeibzn i, t Yeidloog ing :i l loopslicdding nioi'enieients to the loopei' with an 'interinali-(ite dn ell ineens of which the nc cibi-end loops nre detained beneath the .voili while the needles iise and again descend into seid loops presplit hub -10 y 99 thef'stud I105 embraced by one end of the 'link '.=106 whose opposite end is mounted upon the fulcrum-stud screw 107 carried by thv depending arm 108 of an elbow-lever In unted by means of the screw-stud y109 "upon the inwardly projecting ear 110 ofthe bracket-arm standard, said elbw-lever havin'g 'a lateral arm 111' provided with the screw-pin 11,2passing through the slot 113 the standard 2 and by means of which gie fulcrum-s'tud 107 'may be shifted relayely to the link-bar 100 to vary rising and falling inovements and consequently the amplitude of rocking movements of the rockshaft 104. Mounted for longitudinal adjustment upon the reduced forward prtion of the feed rock-shaft 104 are two feedvrockers each composed of a lit hub 114 clamped thereon by means o screws 115 and provided with the divergent upwardly projecting arms 116 between which is piv-` otally mounted by means of bearing' screws! 117 the tubular boss 118 at one end of the feed-bar 119 provided intermediate its ends with the lateral wings120 and forked at its opposite end to embrace the roller-studa 121 carried by the lateral arm 122 whose split hub 123 isadjustably,clamped by means of the screw 124 upon the reduced forward portion of the feed-lift rock-shaft 125 having at its rearward end the lateral arm 126 forked to embrace the feed-lifting cam1127 upon the rock-ing sleeve 84 of the looperactuating mechanism.

The upper faces of the wings 120 of the feed-bars 119 afford seats which are in prac-'1 tice grooved to receive the tongued lower faces of the Shanks 12S of the'feed-dogs 129 'which are secured thereto by means of screws y130 entering apertures 131' in said shanks. The serrated'work-engaging members of the feed-dog `are adapted to pass upwardly throughthe usual apertures 132 1n the throat-plate 133 shown in the drawings formed in several sections corresponding in number and arrangement with the feed-dogs of which two aremounted upon each feed# bar. By loosening the clamp-screws .115 and 124, the feed-rockers and li ting arms may be correspondingly shifted lengthwise of their respective rock-shafts'e-:o as to adl just the positions ofthe feed-bars corre- ,said shaft in Abearings of thebraclli'et' 'irc u-pon the lower end of the. needle-bar and dividual fitting of the mae ine, v

Having 'thus set forth the nature e? tra invention, what we claim 'here 1. In a multiple needlesew' o the combination with the fram anni a bed-plate and an overhan arm, and a needle-actuatingshaft Y by and extendingv longitudinally bracket-arm, of a reciprocatingn' journaled both above and below-said in bearings of the brackebarmdi a'plane parallelw'ith said sha-ft an., ha y intermediate its ends an openngveitendinfg from one edge inwardly tp substantiallyfthe center of'its width and carrying alined and spaced'bearing bosses extending' inwardyyf from the edges, a pivotal pin entering said bearing bosses of the needle-bar, a crank# pin carried by said shaft, a pitman with one' end embracing said'crank-'pin and the other end embracing the pivotal pin between said bearing bosses, a multiple needle-clamp fixed upon the lower end of the needle-bar and carrying a' plurality of needles arranged in a line substantially parallel with said shaft', loop-taking mechanism beneath said bed-plate and .adapted forcopera'tion with said needles, and loop-taker actuating means. Y Y.

2. In a multiple-needle sewing4 machine, the combination with the frame comprising a bed-'plate andan overhanging bracket arm, and a rotary needle-actuating. Shaft sustained by and extending; longitudinally' of the bracket-arm and carrying; pin at its forward end, of.,.a'lec il)19a needle-bar journaled both above vand,,bolina arranged substantially in the plane of id sha-ft' and having intermediate vit'se'nds an I opening' embracingv the path ofmovement of/sad crank-pin and carryixtgralined and` spaced bearingI bosses at one-rend of said 115 opening, apivotalpin entering said bearing bosses of the needlebar, a pitman with one end embracing-said crank-pi andthe'other nd embracing said pivotal pi "between said bearing bosses, a multiple need e-clamp fixed carrying a plurality of needles disposed in aline substantially parallel witl'l'saidshaft,

needles secured in said sockets-loop taking mechanism beneath said bed-plate' and adapted t'o eoperate with said needlesin a bed-plate and an overhanging*bracket-:130

'125 ,v the. production of Stitches. 'rnd'actuating parallel'upper tension-p1ates arranged eorf respondin 1y,',;with and resting upon the 1ower.tens1on-p1ates and ea'eh 4:formed intermediate its ends with e thred-guidingeye in register with its respective iower tensionpletez independently adjustable means for pressing said tension-plates together, e post sustained by the bracket-erm', and a transverse thread-controlling rod carried bysaid post parallel with the intermediate tension- Qarrying cross-bar and the take-up bar when intermediate itsextreme positions.

ence oftwo subscribing witnesses.

PHILIP DIEHL. .HERMANN EICHHORN.

Witnesses HENRY J. Mmmm,

H. A. KoninlgrANN, Jr.

1 5 In `testimony 4whereof, ive have signed v f I 'our names to this specification, in the pres-y

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