US2393292A - Piping attachment for sewing machines - Google Patents

Description

Jan. 22, 1946. A E. T. coATEs 2,393,292

PIPINGATTACHMEN'I FOR SEWING MACHINES Filed Sept. 25, 1943 1/15 41' rennin s.

Patented Jan. 22, 1946 j UNITED smArr '2;39s ,292z V 1 FIRING AC M Nn'ron snwme Elmer '1-.-'Goates;- ShrewsbumQ Mb las simon" to 1 Angelicaii-Jacketf Company; St; 150165,; Mo e at corpoi-ati'mi of=Missouri Applicatibnsept'efilb'er 23, lfi iajisria' l Mei- 035123 71Claii'ns. (Cl.

the attachmentto'be swung upwardly clear of the space between. the head :andthe-work table of thesewih'gmachine Withoutloss of either ,of said] adi1stinents andvthat willprovide aclear spaceior the. operatorsfingere in front--01 the needle and presser foot inthe. operative-position offthe attachment.- The invention consists in th jpiping attachment andint-fiche combinations and? arrangements of parts-hereinafter described andiclaimed g; I I l Inc the accompanying: drawing-which forms part ofithis, specification and wherein like" symbo refer toli'l zeparts wherevertheyoccur;

Fig; 1 isa fragmentary front elevational view of. a sewing Y machine provided with as piping attachmentembodyingmy invention;

Fig, 2"is-an enlarged view similarf: to Fig: 1,. Fig. 3 is-an endelevational viewrotthe-"parts shown-in-Figisr Fig 4-- is "a horizonta 1 cross-sectionalview: on the-1ine4-4;in Fig.=2;. v

Fig. 5is" a horizontal cross-sectional view" on the-line 51-5 in Fig; 2,

line 6 6 in Fig. 2,

Fig. 7 is a vertical crosssectional view on the liner-1 inf-1&3, v I

. Fi'g B-is'r-a plan viewof apiece ofufabric with Fig. 6? is a vertical cross-sectionalwiew on the the: piping; incorporated :in theahemmed margin thereof; and? men is a-vertical cross-section 'onzthe 1me.-9-a

In. the accompanying drawing; my-in-ventionisillustrated :in I connection with asewing: machine:

comprising. a work table I, an arm -2-.=overhang-i This? construction-- of sewing machine is well known and'itis considered unnecessary to illustrate it in detail. 7

My piping attachment comprises a bracket 8 which is rigidly secured at its front end by means 'of a screw 9 to the end face of the sewing machine head 3 and has its rear end portion I0 offtetoutwamm "relative thereto; A. pla't'ei liliei-arfii 1131's securedfby ai'p'a'iror 'veiticaily soabedrnozrg zont-al' screws If fiatwie; to the rear enej ortion orithe bracket. 'riie two.- screws? r25 exteifd' tn'rougn .anLelong atd' verticaislo'ti l3" ihfthj'rear end. of their arm I l, whereby; said am lb' jiis'tdi vertically with respect." to 'said' bracket 8,

Al pl'ate I 41 covers thersldt 3: andiis clamp'edifia'te wisefagainst'ithecarmr| llbi'tlie'headsiofthefsci ws 12., Assnown in the d'rawrng; fihe garin'lll' 'has ah: open-ing- J I 5 extending? horizontally thereth'roiigh oppositefthe secur ngi crew Q' fon thel'b'racRetT'B otal a'r'mj l1 at-lthe free lower: end thereofifor horizontal" adjustment relative thereto. trans verselyv of thefline of work feed is.- a downs WardI yQt'apering-tape folding tube 20. Thertube Z'fllhasl a lateral extension 24: that is secured flat: wiseito the lateral extensionrla'of the-pivotal sarmll -by;[mearis,of a: pair of horizontally; spaced screws Z'Zl'thatj extend throughran elongated-hori zontaiisl'ot I 23'." in .thetube extension 24 and: are th'readed into 5 the amnextension i I -9. thereby;- per mitting bodily adjustment of said tube crosswise.

i ofit he line of-work' feed. A- plate fl'coversthe slot -23 -and}is cla-mped fiatwiseto the front faceof-uthe tube extension 2l|-byi theheads oil-thescrews 22. I

At the. lower end of the tape folding tube 20, the-head. opposing side wall thereof isconti-nued downwardly in the form of a guidefinger 25 that: curves-=-downwardly and-outwardly; as *at 25a intheudirection -of the; line of work: anditerminates' in a ..rearward1'yS extending horizontally disposedfreesendi portion- 251) that is disposedwin ther -line: of work feed just forward-of thespresserzfootvk and needle 5 and just above the feed elements 6 in the top of the work table I. The free end 25b of the guide finger 25 has a tape receiving opening 26 extending vertically therethrough.

The tape A from which the piping B is formed is taken off of a supply r011 21 which is rotatably mounted on a horizontal journal 28a provided therefor on the upper end of an upright 28 whose lower end is rigidly secured to the end face of the sewing machine head 3. The tape passes downwardly from the supply roll 21 through the tapered tube 20 and is folded longitudinally during its downward'travel therethrough to form the piping B. i The folded tape or piping B then passes beneath the downwardly curved guide finger 25 at the lower end of the tape folding tube 20,

thence rearwardly over the front edge vertical opening 26 in the free end 25b ofsaid'finger and thence under the rear edge of said opening and laterally extending guide finger rigid with the beneath the needle 5 and presser foot 4 where.

it is attachedto the goods C by the sewing mechanism of the machine, the tape being drawn from 1 the supply roll by the work feeding elements 6 of said machine. The folded tape'or piping B may be attached to the goods 0 in any desired manner, such, for instance, in the manner shown in Figs. 8 and 9, wherein the piping'is embodied in the hem C of the goods and is secured by the securing stitchesC" for the hem.

The'principal advantages of the above piping attachment are the easy attachment thereof to the sewing machine without disorganizationthereof, the horizontal and vertical adjustments which permit the height of the free end ofthe guide finger to be varied and said end located in line with the line of stitching, the pivotal connection which permits the tape folding tube to be swung upwardly clear of the work table and the needle and presser foot without disturbing said adjustments, and the horizontal offsetting of the vertically disposed tape folding tube relative to the line of stitching so as to provide a clear operating space for the operators fingers in front of the needle and presser foot.

Obviously, the hereinbefore described piping attachment admits of considerable modification without departing from the invention. Therefore, I do not wish to be limited to the precise arrangement shown and described.

What I claim is:

l. A piping attachment for an ordinary sewing machine comprising a downwardly opening upright tape folding tube adapted for mounting on said machine at one side of the line of work feed thereof, said tube having a laterally extending guide finger rigid with the lower end thereof, said finger having a vertical opening in the free end portion thereof through which the tape folded in said tube is presented in position for stitching by the needle of the sewing machine and for feeding by the work feeding mechanism thereof through said tube and along said finger and through said opening.

2. The combination set forth in claim 1, where inmeans are provided for adjusting said tube vertically relative to said machine to vary the height of the guide finger.

3. The combination set forth in claim 1, wherein separate means are provided for adjusting said tube vertically relative to said machine to vary the height of the guide finger and for adjusting said tube horizontallyrelative"to said machine transverse to the line of work feed to lower end thereof, said guide finger having a verticalopening through the free end portion thereof through which tape folded in said-tube is presented in position for stitching by the needle of feedingmechanism thereof through said tape folding tube and along said finger and through said opening over the front edge and under the rear edge of the latter, means for adjusting said tube relative to said machine to vary the level of the guide finger, means for adjusting said tube horizontally relative to said machine transverse to the line of work feed, and means for mounting said tube for vertical swinging movement in a plane substantially parallel with the line of work feed.

6. A piping attachment for an ordinary sewing machine comprising a bracket adapted for rigid attachment to the head of said machine, an arm secured to said bracket for vertical adjustment relative thereto, an arm pivotally supported on said first mentioned arm for vertically swinging'movement'relative thereto in a plane'substantially parallel with the work feed, a downwardly opening tape folding tube mounted on said pivotal arm and having a guide finger extending laterally therefrom in the direction of the work feeding mechanism of said machine, said finger having a vertical opening through its free end portion through which tape folded in said tube is presented in position for stitching by the needle of said sewing machine and for feeding by the work feeding mechanism thereof through said tube and along said finger and through said opening, and means for-adjusting said tube horizontally relative to the pivotal supporting arm therefor transversely of the line of work feed to bring the opening in said guide finger in line with the work feeding mechanism of the sewing machine.

7. A piping attachment for an ordinary sewing machine comprising a downwardly opening tape folding tube adapted for mounting on the head of said machine in a substantially vertical position entirely at one side of the work feeding mechanism, said tube having a laterally extending guide finger rigid with the lower end thereof adapted-to overhang said work feeding mechanism, said guide finger having an opening in the free end portion thereof through which tape folded in said tube is presented in position for stitching by the needle of the sewing machine and for feeding by the work feeding mechanism thereof through said tube and along said finger and through said opening.

7 ELMER T. COATES.

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