US1848029A - Attachment for hemstitching machines - Google Patents

Description

March 1, 1932. H sc m 1,848,029

ATTACHMENT FOR HEMSTITCHING MACHINES Filed Feb. 13, 1928 NVENTOR 79v If I ATTORNEY Patented Mar. 1, 1932 p v g I v UNITED S TES LIAT I HARRY sonmnnnnnrn, creation-LYN, ne t- 1 1 ATT H ENT non HEMsTIi'cirrive 'Mi cHmns or Application. fildjhebruary '13, 192s."engine/254,122. H g This invention relates to fancy stitching Fig 413' a side view of the plunger removed machines and has particularreferencetoan from the plunger bracket. 7 I' v 1 attachment for two-needle hem'stitchlng Ina- In carrying the invention into practice, chines forproducing a zigzaghemstitchipatthe attachment is shown as applied to a Sing-r s tern which has heretofore. been" produced er two-needle ihemstitching machine com- 55 only by hand, H I jx I v monly'lmown as the 1 7' -W type of machine, While two-needle henistitching machines WlllCh s prov ded wlth a presser footA, "a

have been in use for a considerable period of plunger bar B -and which carries a. pairiof 1 time, no attachment has heretofore been deneedlesC mounted for'vertical reciprocatiom j v 1' vised for, producing a zigzag'hemstitch' pat- The plunger bar carries a bracket 'Dqwhich tern by machine'and it is therefore an object 1 1s mounted for vertical reciprocation, with of the present invention to provide means as the plunger barand which is apertured to re 1 an attachment for the usual two-needle hemceive the' shank of a plunger or spreader. for stitching machine forlproducin'g a zigzag separating the threads E'of; the drawn por f hemstitch pattern. 'tioniof the material Fiwhe'rexthe hemstitch. A More specifically the invention compre' pattern is to be produced; o 1 hends ina two-needle hemstitching machine In the presentinventionthe needles C are I means for supporting the needles to dispose mounted soithat one isslightly in advance of I onein advance of the other and abifurcated the other,- a distance equal substantiallyto c plunger having the furcations correspond: One-half the distancelthe material is fedfby v ingly disposed onein advance ofthe other to the feeding mechanism of the machine, it cQ-operate with the drawn portion of the mabemg of course understood that the sameare terial for'separating the threads ina zigzag transversely or laterally separated or spaced manner while the needles performthe stitchapart. The plunger for producing therzig- Q V ing operation in the usual manner to retain Zag hemstitch pattern includesf'a .shank lO 5: V

the threads thus'separated. 1 having a bifurcated head 11', the furcations The invention furthermore comprehends '12 and l3of which are spaced apart laterally an attachment of the character setgforth While the same are disposed one slightlyin whichis simple in its construction and mode advance of theother correspondingto the ar- 1 5 of use, inexpensive to manufacture,' readily rangement ofjthe needles a In horizontal 6 applicable to and removable from a machine, cross section the fu-rcations are substantially and which is highly efficient in its purpose. 7 crescent shaped and reversel-y arranged 1 so With the above recited and other objects in that'needle clearance grooves let-and 15 are view, reference is had to the following deformed respectively on the outer side edges v.

scription and accompanying drawings in while the inner faces 16and 1 7v are convex. 5

which there isexhibited one example'of ein- The lower ends 18 and 19 of the 'furoations V bodiment of the invention while the appendare pointed; Theshank 10 is receivedin'the ed claims define the actual scope offthe inapertured portion of the plunger bracket D .vention. V V I o is secured thereto 'bya set-screwriGdn. 40 .In the drawings' r I the usual manner 90 Figure 1 is {a perspective view of a two-v In use andyoperation when the plunger f needlehemstitching'machine equipped with moves downwardly, the pointed lo'wer1teraplunger for producing ajz'igzag hemstitc -h urinals or ends18 and19 drivethrough'the I pattern; 7 i

threads E of'thedr'awn portionof then: at e-- 2 is a fragmentaryjcrdss-sectional 'rialrF to separate theJsarne ina-zigza'g'man- 95 view taken approximately on the "li1 1e indi; her as illustrated clearly in Fig.8 of the catedat2-2 inFig;'3 V v I 1 v drawings The needles Qcause the threads i Fig. 3' isa horizontal sectional view taken H to' jaccomplish the" usual form of chain i i approx1mately on the line stitch for securing the thrjeads' E. o-fflthe in Fig. 2;

I dra 'nfportiOn in their zigzag'separated con- 1 0 furcations being disposed oneinadvance; of

the other in the direction of said feed and respectively. corresponding appnoximately, to and located adjacentthe needles forthelpurpose of engaging with, separatingand temporarily holding: groups of the threads of I thedrawnportionof the material in. a zigzag fashion, whereby the needles. may func tion. to form stitching for-permanently securingsaidthreadsin said Zigzag fashion.

2.. atwo-needle hemstitching machine, an attachment fon producing a zigzag hem. stitch pattern in a. textile material. having a drawn portion, said attachment. including a pair of needlessupported; in laterally spaced relation with one in. advance of theother in the direction of the feed of; the material through the machine a.( distance equal substantiallyto. one-half the distance the material: is fed. by the feedi'ng mechanism of: the machine and means toengage with, spread and! hold the threads of the drawn portion. of the material in a zigzag-mannen, whereby the needles. function to, form stitching for. per.- manently securing said: threads. in: their zigzag. anrangement.

3; In a two-needle hemstitching machine, anattachment for producingin a. tQXt/llfilllflr terial having a drawn portion, a zigzaghem: stitch pattern, said attachment including a pair of needles supported in laterally-spaced relation with. one in advance of the other in the direction of they feed, of the material through, the machine a. distance/equal sub.- stantially to-one-half the distance the-mate.- rial. isife'd by the'feeding mechanisn of the machine .and means to. engage with the threads of the drawnportion of'the material.

to dispose the same ingroups at an. angle to each other and to. the normal lieof the threads, said means being disposedin a corresponding relation to theneedles andadjacent thereto, wherebysaidneedles function toproduce stitching for permanently securing the threads in the manner in whichithey are: grouped by said means.

4'. The combination with a twee-needle hemstitching machine, of an attachment} for producing in; a textile material havingadran n portion, a; zigzag hemstitclr pattern, said attachment: including a, pairjof: needles, means for supporting said; needles tojdispo sethe same in laterally spaced relation with one in advance of the other in the direction of the feed of the machine a distance equal substantially to one-half the distance the material is fed by the feeding mechanism of the machine and a bifurcated plunger having furcationg. and cross sectionally tapering shape inwardly from theouter sides, an-dsaidfurcations being correspondingly disposed one in advance of the other and in laterally spaced relationand adjacent the needles, for sepa rating into and temporarily holding the threads'of the drawn portion of the material in gnoupsjdisposed at an angle to each other and an angle to the normal lie of the threads whe feby the needlesmayfunction to formstitching for. securing the tli reads lin, the grouped relation specified.

5,. 'llhe combination with :a twoeneedle hemstitchingmachinaof, an attachment for producing in a textile material having, adra'wn portion, a zigzag, hemstitch, pattern, said attachment including a pair of needles, means for, supporting said needles. to. dispose the same in laterally spaced relation. with. one in advance of. the other in! the direction of. the feed ofthemachine a. distance equal. substan.- stantially to one-halfthe distance the material is fed by the feeding mechanism, of the machine and a bifurcated. plunger having laterally andinwardly cross sectionally tapered furcations correspondingly disposed one in; advance of the other. and in laterally spacedvrelation and. adjacent the needles, for separating into andtemporaril'y holding the threads of the drawnv portion of the material in. groupstdisposed at. an angleto each other and an angle-to the normal} lie ofthethreads, whereby. the. needles may function to form stitching for. securing the threads in the.

grouped relation specified, the said functions each having a longitndinalgroove int-he outer face thereof within which the needles are moved.

6, Thecombinati'on with atwo-needle hemstitching machi ne,.of an attachment for producing in atextile material having a drawn portion, a zigzag hemstitch pattern, said attachment, including a pair of; needles, means for supporting said needles to dispose the same in laterally spaced relation with one-in advance of the, other; inthe' direction of the feed of the machine aj distance equal substanstantially to one-half the distance the mate rial is fed by the feeding mechanism of the machine and' a bifurcated plunger having furcation's correspondingly disposed one in advance of the'other and 111, laterally spaced 7 relation and" adjacent theneedl'es, for sepagrouped relation specified, the said furcations being of substantially crescent shaped cross sectional configuration and each presenting a convex inner surface and a concave outer surface, which latter concave outer surface defines a needle groove within which the needle moves. V v a Signed at New York, in the county of New York, and State of New York, this 10th day of February A. D. 1928.

'HARRY SCHINDELHEIM. 7

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