US634785A - Take-up for sewing-machines. - Google Patents

Description

(Application filed Oct. 4, 1898.

3 Sheets-Sheet I ING Model.)

l 1 Patented out. In, m99.y s;`wn.|.mns.

' TA-KEv-UP F08- SEWING MACHINES.

(gpizdn'emtiorn mod Det. 4, 1898.)

no. (ism-,zagaI1 am 1mm' 3 Sheetn--Shee 2.

No. 634,785. Patented oef. 10,1899. s. WILLIAMS. Y

TAKE-,UP FOR SEWING MACHINES.

(Applictin med 0ct. 4, 1898.;

3 Sheets-Sheet 3 (lo Model.)

NiTEio SAMUEL WILLIAM? OF NEVI ORLEANSs LOUISIANA.

TAKE-UP FR SEWBNGHMACi-'liz SPECIFICATION forming part of Letters atens No. i, dated Ociob'r'lo, 1899.

ppllontioxx filed October 4,. 1993, Serial NOXBQZA 3.31 (No model.) l

To LLZ whom 'it 111/114/ dance/vo:

' Be it knownthab l; SAMUL WILLIAMS, a, citizen of fheUnit-ed Statesfresiing el. New Orleans, in the parish of Orleans and State of Louisiana., have invented certain new and useful Improvemeutsin Virex-Thread Sewing- Machines; and I Clo hereby declare the' lol lowing to be a full, clear, and exact,deec1ip tion of the invention, such. as will enable oohers skilled in the arb to which it opper-mine tio make and usethe same.

Myinvention relates o improvements in tokemp devices for wax-thread sewing-ma,- chines, and especially to that ci'ees of mer chimes known as inseaming shoe-sewing machines.

@ejem of my said iwf-.mori i5 no veul,

der certain machines of this class now in osesuch, for example, as the well-known Goody portions removed, o. form of Goof'.

year weltsewing machine omi oooeremoopo ble of, sewing' as lot an insonne es may be done by hond and at' the some imopreserving the superior qualities of the chain-stitch. I attain these objects 'by the enigglojfmeai; of a yielding mechanism in some portion ol die take-up or tl'read-controlliog mechanism. act ing upon the thread after has lofi; the ceo-- sion-wheel,*graduated approximately to the breaking strain of the l'hreed, and by which as the thread is drawn meer the completion of the stitch au ever-increasing strain is plied thereto untilvtlle maximum for which the device is adjusted-'io attained. time e'v'oiling any severe shock ab the riool poll amil ensibling o greater tension to 'oe applied te elle satire .size of thread than has hitherto been done. Likewise al; the comroencemenJ o .the return stroke biie'moximnm si', "n isrecioced gradually, thus compleely eetl: olie smell and preventing any slip or relaja tron. thereof. In orer that m y said invention may "De more clearly understood, the some 'will lie ieseribefl with referen ce to the ocoompfm yin l'owi og in which- Figure l represents in side eievetion, with voor weil;- machine with my improved take-uo mecliew ism applierl thereto. .Figi E? represente o. ie-r tail plan View of the inkel-colorer ase-eo. Fi 3 represen ts the anxliolry tekoop lever ii, elevation. Fig. el re r senos in from elevation the.machincizmgotwchmente Shown Vdrawings l monntrthe lieke-np lever Fig. l with parte removed. v .5 represente in from; elevation on enlarged detail View of the bracket for supporting the take-up-lever 'sliding seat, and Fig. 6 represents the seme `in side elevation.

As the various Working parte of the Good- ,yem' 'Weltlmacliine above referred toV neme been 'Eoliy described in prior patents and es theiroperatilm is well known in the ort, only those parte wiiioh operaie directly with or are embodied lo my invention need be portion lai-ly heroin referred to ood described.

lo. the eoeompanyi n g drawings similarparts are .represented by Similar letters throughout 'the several views.

In *the form of my invent-ion shown in the E upon' aetud e and 'between ille wo lugs F il of e sliding seat Ff?. This sliding sea/ F2 is provied also wih a third lug El, located at one corner hereof end al; right angles to thev lugs E and F', the lng FS being provided with o Stud or bulferf". iee Figs. 1,2, and e.)

Inline with the bofferf is the sczewlthreeded bufferf', which is screwed A'noto lne; F4 on he stationery bracket Bf, the seid bracket also comprising he sl lclefbox 71, for the take-up seat F2. Mounted on tliebuer f4 istlie adjustable sind or 'not f5, laenreen which and the is tireleneon-spring K, While ai. elle rear emi of *elle buffer is loomed the check-11u i; f5. The adj estable stnrlf'wih buffer# interet, lmis the ploy of the Sliding sem, A washer f7 may be ioeeriiccl on the buerffi, or e, pluralioy of such washers may be eoiuser'ed, as may oe desired, for varying the compreesibiloy of tiro-spring Hf l The edge on elle right eide of the seal: Fgie beveled emi libs into recess h', wliilehe ooge on the iefo side ofeeid eem 'le simil; rly bevele to the booten: surface, so es to here o sliding fit 'between ege; h' amd 7a2. prevents any tenfleucy of eeifl tekoop-lever sea to lift ooi-ing its operation. notice aber.

l5 will be' this cap h" extends'only about,

this is Lione for oompecimess, ond ie su lioieni, as the aiinexeent of the Various parte 'forming iie wakeup motion is enc-lx time alle Qontrol line of force oommuniootef" by the miie-op cantilever puisses through ille center of the lin -nuts -drum is governed by the spring Q7, the tension of wllirich may .be varied by the'adjustn regard to the adjustment of tension it will be noticed that by my invention springs of diierent' degrees of compressibility may be interchanged or the compressibility varied by the insertion or removal of Washers'. The tension of ,the spring may also be varied by the adjusting-nut f5.' admits of the Vtensionot .the take'up and tension devices being so readily adjusted, is a most advantageous one, inasmuch vas by it the machine may be used with any size of thread from that required for' the smallest baby-shoe to that required for the heaviest work, and all the while utilizing the `fnll strength oi.' the thread. Besides the su perin ority of the Work thus produced there will be a reduction in the time lost which would otherwise.be occasioned by the breaking 'of the thread.

While I have herein shownand described my invention as applied to a Goodyear weltsewing machine, the said invention is, nevusing takenp mechanism to tighten the stitch independently of the needle. An auxiliary take -up is usually employed in ma# chines of this character to. take up the slack thread as the take-up returns in the forming 'of a new stitch, and incidentallyand to some slight degree it lessens the shock. to the thread when a new supply is pulled from the tensionwheel in completing the stitch; but the two functions are different and require difterent conditions. An auxiliary take-up re' quires a considerable throw and a spring with sufficient flexibility to exercise its usefulness throughout that space, whereas the function of gradually applying strain to the thread rcquiresbota short space for operation with a spring of rapidly-increasing resistance.

I do dot limit myself to the described details o f mechanism here shown relative to a yielding mechanism embodying the principles herein set forth, as these principles can be made operative byother suitable mechanism and in any portion of the take-up or thread-controlling mechanism without departing from the spirit of my invention.

Having thus described my inventimi, what l claim, and desire to secure by Letters laent ot' the United States, is'- 1. In a sewingnnachinc, the"combination with a stitch-forming mechanism comprising This feature, which l a needle and tension device, ci" a mirc-up leverand means lor actuating the same, a yiclding support to which said lever is pivot-cd,

said yielding support, during the operation of the takeup exerting a yielding upon the thread between the tension device and the noodle and boing so adjusted tlmtits full stress upon the thread is approximately equal to the maximum strength of the thread, the said support operating independently of the needle and exerting its greatest stress just prior to the drawing off of fresh thread for the formation of a new stitch, substantially as described.

2.1m a sewing-machine, the combination with the take-up cam-lever and take-up lever and operative connection between the same, of a yielding mechanism actuated by said takemp cam-lever and the take-up lever comprising two members connected together, one

'of said members being movable relative to the other, a spring interposed between the said members, an adjustiugmut for varying the tension of said spring and means for interchanging the' said springs, substantially as described.

In a sewing-machine, the combination with the take-up'cam-lever and means for operating the same, of a take -up lever and means connecting the same with the cam-lever, a yielding support to which said take-up lever. is pivoted, comprising two members connected together, one of which is movable relative to the other, a spring interposed between said members and means for adjusting the tension ofsaid spring substantially as de scribed. V

l. A sewingmachine, com prisingatake-up mechanism incl ud ing a take-up canrlever and -a take-up lever, a sliding seat upon which said take-up lever is mounted, a stationary bracket carrying Said sliding seat, a resilient body interposed between said sliding seat and the stationary bracket, substantiallyas described.

5. A sewing-machine, comprisin ga take-up mechanism including a take-up cam-lever and a takeup lever, a sliding seat upon which said take-up lever is mounted, a stationary bracket carrying said sliding scat, aresilient body interposed between the said sliding scat land the stationary bracket, and means for adjusting Vtire tension of the said resilient body,

, substantially as described.

GQ A sewing-machine, com prisinga take-up mechanism includinga take-up cam-lcvera'nd atake-up lever, a sliding seat upon which f said takclup lever is mounted, a stationary bracket carrying said sliding seat, a builer carried by said sliding sent and a buffer carried by said-,stationary bracket, a resilient body interposed bett-'ecn said buffers, and

means for adjusting the tension between said buffers, substantially as described. n

In testimony whereof I afix my signature in presence of two witnesses.

v SAMUEL WILLIAMS. \litncsscs:

.muy J. Saumon.

IOO

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