US671680A

US671680A - Ornamental-stitch sewing-machine.

Info

Publication number: US671680A
Application number: US70152799A
Authority: US
Inventors: William N Parkes
Original assignee: Individual
Current assignee: Individual
Priority date: 1899-01-07
Filing date: 1899-01-07
Publication date: 1901-04-09
Anticipated expiration: 1918-04-09

Description

(No Model.)

Patented Apr. 9, mm. W. N. PARKES.

UBNAMENTAL STiTCH SEWING MACHINE.

(Application filed Jan. 7, 1899.}

5Sheets-Sheei I.

IN VENTOH Pate nted Apr. 9, 190'.

w. N.- PABKES! OBNAMENTAL STITCH SEWING MACHINE;

[Apply ufzon filed Jan. 7, 1899.) (No Model.) 5 Sheets-,Sheoi 2.

- ATTORNEY".

W/UVESSES Patented Apr. 9, mm. w. Ri. PABKES.

[ERNAMENTAL STITCH SEWING MACHINE.-

(Application filed Jan. 7, 1899.)

5 Sheets-Sheet 3.

mm I.

ATTORNEY No. 67|,fi80. Patented-Apr. 9, I91.

w. n. PARKES. r

ORNAMENTAL STITCH SEWING MACHINE.

(Application filed Jan. 7, 1899.) (N0 Model.) I

5 Sheets-Sheet 4,

WIT/VESSZ'S; W

m. a7:,ean.' Paiented Apr. 9, 19m.

' w. m. PARKES. I URNAMENTAL STiTEH SEWING MACHINE.

(Application filed Jan. 7, 1899.;

5 Sheets-Sheet 5.

UNITED STATES P TENT" OFFICE.

WILLIAM N. PARKES, 0F BR OKLYN, NEW YORK.

ORNAMENTA L-STITCH SEWING-MACHINE.

SPECIFICATION forming part of LettersPatent 0. 671,680, dated April 9, 1901.

Application filed January 7,].899.

To (LZZ whom it may concern:

Be it known that I, WILLIAM N. PARKES, a citizen of the United States'of America, residingatNew York, borough of Brooklyn, county of Kings, and State of New York, have invented certain new and useful Improvements in Ornamental-Stitch Sewing-Machines, of which the following is a specification.

United States Patent No. 592,510, granted to me October 26, 1897, shows and describes an ornamental-stitch sewing-machines, in which the needle-bar is vibrated laterally, the extent of the lateral vibrations of the same is automatically increased or decreased a predetermined amount during the formation of a predetermined number of stitches, and the working position of the lateral vibrations of the needle-bar is automatically moved laterallyapredetermined extent and for a predetermined number of stitches. In combination with these movements of the needle-bar individually or collectively the extent of the movement of the feed-dog is automatically increased, decreased, or reversed for a pre-' determined number of stitches; In this machine these movements are under the control ofa mechanism which is actuated by a ratchet wheel, means being provided for regularly ac! hating the ratchet-wheel 0r intermittently actuating it and for adjusting the durationof the action and inlermitlency of the action. June 26, .1900, United States Patent No. 652,327 was granted to me, in which I. show 'and describe an ornamental-stitch sewing:-

machine in which the lateral movements of the needle-bar are under the control of a cam actuated by a raH-hehwheel and the extent and duration of the movements of the feed dog, ot' the machine are under the (amt-rel of a second cam actuated by a second ratchet.-

nvheel, the movements of these feed-wheels Serial No. 701,527. (No model.)

desirable change inthe relative positions of theseratchet-wheels and through them to prevent any undesirable change in the actuating position relative to each other of the cams actuated by them. In other words, it is a separate independently-adj ustablemechanism for controlling the lateral movements of the needle-bar and a separate independently-adjustable mechanism for controlling the movements of the feed, whichwhen set to be used in combination with each other to produce anyparticular stitch will continue to produce'the same stitch, and it turned out of their relative position with each other, which produces this particular stitch, will when the machine is started at once assume their proper relations again.

Other objects of this invention will appear in. he detailed description which I will now make. Y

Referring to the drawings, Figure 1 represents a front elevation of a machine with my invention attached thereto. Fig. 2 is a separate view, on an enlarged scale, of the mechanism. Fig. 3 is a section on the line 3 3, Fig. 2. Fig. 4 is a rear view of the needlebar-controlling ratchet-wheel, showing, the pawl-lever disk attached thereto and the actuating-cam attached to the disk. Fig. 5 is a front view of the feed-controlling ratchetwhecl with the gap-adjusting disk attached thereto. Fig. (i is a front view of the needlebar-controlling ratehet wheel. Fig. 7 is a detail showing the belt for connecting the parts 1) and Fig. 8 is a front View of the regulatiug-segment. Fig. 9 is a front view of the auxiliary necdlebar ratchet-wheel. Fig. 10 is a plan view of a modification of Fig. S. Fig. ll is one oi the ratchet wheelretaining u uts,sho\\'ingi he friction-strap-conlrolling' spring attached thereto. Rig. l2 is a top and indium view of the needle-bar auxiliary ratchet wheel adj ustinn segment. Fig. 13 is a sidoview looking from left to right, showing the feed connections and ad jnstments shown in Fig. 2. Fig. 14 is a de tail of l he umiershaftol' the machine, showing the actualing-cams thereon and the connew lions from t n-cams to l he mechanism. Fig.15 is a sectional view of thrscgmcnli-leverG and Fig. is a detail planview ol' the lever G end of the auxiliary segment-plate g.

with its auxiliary segment-plate .relnoved. Fig. l'Zis a detail sectional view showingthe manner of guiding the upper end of the slide L. Fig. 18 isadetail view showing the mannet of engagement betvveen tlie slide, L and Si nilar' letters of refer-e,

' responding parts j throu' zo'viewsof thedrawings' z A mn bseh st ea f' mach ner ir the bed, O, the nppje'rlshaft'gp, then eedl e-ban a t dEthlQ ne -b i w 'ed t re r '0 "side tith arm' A of ;the achine.

a vert al position .a- .plateF merit-lever G r, havinga' sleeve g is f at'oue end'on astudfgp', which is rIgid lyla ttached to the plate 'l -l ie lever'at 1,

a t oend is l'n engagement'witha; ,sw ch .cain

through ausual switch-cam folloiiv'er;has

shown in Fight. I Qnthe sleeve 9 is journaled acollarIg having an extension or boss 9 on the lower end of the segment-lever G ab ss 9.

' rigidly attachedjan rau giliary segment-plate y the lower end of which is attached to-the- I face'of the boss by mean of a scre W gi, passing through a slot gflforxned in the lower- .Longi'tudinally ofthe auxiliary segxneutplate g is formed a slot g the-upper end-of, which is directly ove'r'the pivotof the segment-lever G. By this. construction-it is seen that the lower end'of the auxiliary segineuhplate y? can be readily adjustedlaterallyand thatjits up'per'end' will turn en the-sameaxis asthe lever 'G.- "It. is alsojseeuthat thefauxiliary plat gi d the collar 9?, rigidly connected 5o .there'to, 'fori n I second segment-lever, fulcrumed oii the slee've g of ,the first seginenh 1ever. I; A lever K is f ulci'u med 'at'k on a bell-crank clever H, which is su is attached one endbf a linkJt, the other end of which 'en'c irc'lesa boss formed on the under side of alshoe the shoe being adapted to -slide"i'u' the"slotfg the boss to slide on 6c the face'fof' the lever G, tl1is contact serving to retain tlle slloe in thegslot and to prevent any rockin of the same. To the upper end of the leverK is attachedl one end of a link" k which at its other end is attached to the 65 needle-bar gate D. v

' L- is a slide guided at its lower end on the aplate F by means of the bridge Z and at its Fig. 20is designate cor; ho'ut the H several.

isin I is x n ounted. 'seg.

Onthe facej of the boss g is I I I I tably fulcruined at h to 55 the plate F; To the lower end of the leverK' tionrollers 1 the .lowezfloue of which is adjustab'le', as shown'in Fig. 18.

M is a segment-lever f ulcrumed at m on the plate F, the free end of which is connected with the slideL. "bylneans of an ordinary shoe-and-slot connection. A link m is at its upper end adjustably connected in a suitable manner to the lever M and at its lower end to the link'k', as shown in Figs; 2 and 24.

" To the end Yofthe' horizontalmember of the bell-crank lever H is attached the lower end of a link.h','t-he upper end of which is adjustably attached to a segment-"lever hwhich isfulcrumed on plate'F'at h and the outerv end ofwhich is connected by means of an ordinary slice-and-sl0t connection to the slideL.

E is afbell-crank lever having a member n,

out-hie i Q of which is attached a plate a, in

whicl 1 4i,s f0rn ieda curved guidewayn 'lo the-other, member a of .the bell-crank lever N is attached one end of. a link n which connected at its otheinend to-a lever S, and which in'turn is in operative connection with a grooved. cam s, mounted on the upper shaft 0 of the machine through a stud and frictionr 'oller connectioinas shown in Fig. 14.. A

stra n encirclin a disko' terminates at" itsouter end intoa pawl-lever nflon which is mounted apawln, a link a being attached at n, to thepawl-lever n and atits other end adjus'tablyto thennember n of the lever N. On the face otthelever S is attached a supplemental plates, in which is fprmed a curved guideway 5 I O is the need-le-bar-controlling ratchetwheehmounted-on a stud-shaft 0; whiclrissuitably. attached to the plate F.v In the ,teethof the ratchet O are formed gaps 0.

On the under side of the ratchet O is adjustably attached the disk 0, on the under side of whichjin turn is adjustably attached a cam 0 A sleeve 0 formed on the under side of the ratchet 0, passes through thedisk 0 and the cam o into an upwardly-extendingsleeve .0 formed on a disk 0", the sleeve 0 being suitably keyed to thesleeve 0 The disk 0 is let into the plateF, so as to perlnitof the tree passage of'the slide L, which rides on the plate F, a slot being formed in the slide of suitable widthto allow the free passage of the same on the outside of the sleeve o and of suitable length to allow of the reciprocations of the 'slide.

Slide-blocks 0and 0'? are suitably formed to slide in a'gnideway or slot 0* formed in the plate 1*" and to clamp the edge of the disk 0 stud 0", springfo and nut 0 serving as a means .to increase or decrease the pressure of the block on the disk 0 at one end attached to the block o andat its other end to a fixed pin aflixed t0 the plate F, as shown in Fig. 19, which spring, through A spring 0 is.

12 will finish its forward stroke.

the blocks, normally draws on the disk 0 in the opposite direction to the rotation of the ratehetiO. The contact portion of the slideblocks 0 and o with the disk 0'' can be made of any suitable friction material.

A stud-shaft p is rigidly attached to the plate F, on which is mounted to turn a ratchet cam-wheel P, in which is formed a groove-cam 19. In the teeth of the ratchet cam-wheel l is formed a gap 17. A sleeve p is formed on the ratchet cam-wheel and extends from the same to the plate F. On a pawl-lever p is formed a sleeve 1:1 which is mounted 'on the sleeve 13 of the ratchet. ()n the free end of the pawl-lever p is mounted a pawl p which is adapted to engage the ratchet cam-wheel P. A link 3 is at one end attached to the pawllever p and at its other end adjust-ably in the guideway 3 formed in the supplemental plate .9, which is attached to the lever S, the guide'way 3 being formed so that the adjustment of the'end. of the link .5 in the same will not changewhe point at which the pawl On the outer side of the ratchet cam wheel P is formed a hub 17, on which is mounted a disk 11 a sutticient number of teeth being formed on the periphery of the disk to close gap 1;, formed in the teeth of the ratchet. cam-wheel P, the ordinary slot and screw connection (shown in Fig. 5) serving as a means for circularly adjusting the disk to close or open the s 2 v R is a teed-regulating leverattached at one end to the feed-rcgulating-shaft r of the machine,t-he outer end '1" of which is formed into asegmeut in which there is a slot r Alongside of the feed-regulating lever R on the feed-regulating shaft'ris loosely mounted one end of a feed-indicating lever r on the outer end of which is attached an indicator tr. Through the indicator 1' and the slot r passes a thumb-screw 7"", which has a seat in a nut 'r and is held from turning by being let into a way 0- in which it is adapted to slide. A

' link 7* is operativoly connected at its lower end through a ball-joint. connection to the feed-indicating lever r and at its upper end through a ball-joint. connection in a guideway r formed in the horizontal member of a bellcrank lever 1", which is fulcrumcd at r to the plate F and the vertical member of which is iii-engagement with the groove-cam 17', through a usual friction roller r which is suitablymounted on the end of the same.

()n the st ud-shalt o is keyed a sleeve in, having a flange It". A ratchet W, in which are formed gaps u, is mounted on tho slocvc, the flange 1/"sorring to separate the ratchet \r' from the ratchet- 0. o the ratchet \t is formed a ratcliot-seglnont ,/t which has t thed [m -lions r A disk it acts as :1 huh for a bell-crank lever u, on the vertical end uof which is attached a pawl H nhich' is adapted to engage the teeth of the segment 11". In a guideway 10" is a shoe to, in which a screw to, passing through a slot in the wheel 0, has aseat. The head of the screw extends outwardly into a slot 10 formed in the wheel W. The extent of the slot 10 in the present machine is made of. snfiieient length to allow the wheel W to turn the distance of two of its teeth. A segment 10 serves asan adjustment to close the slot 10 so that. the wheel W can only move one tooth, or to close it, so there will be no movementat all of the wheel W relative to the wheel 0. The holes to in the wheel W, in which the pin to on the segment 10 fits, serve as a means for locating the segment the exact amount of one or more teeth in adjusting it.

In the disk 11 is formed a slot and guide way 2), in which a shoe 1), formed on the end of athreaded bolt p fiisada'pted to slide. 011 a hub 1;, formed on the disk 11 is placed a regulating-segmentp in which a slot 13" is formed and on which a cam 1)" is constructed. 'lhe threaded bolt 1) passes through the slot 1) in the. disk 1) and the slot 19 in the segment p 9. An ordinary thumb-nut on the threaded portion of the bolt 12 serves, in connection with the shoe 1), as a means forclamping the said segment p to the disk N. The slot-s p in disk 11 and p in disk p are of sultieient length to allow of the complete adjustment of the cam 1)" around the ratchet cam-wheel l". in the horizontal member of the bellcrank lever is a pin w, which is adapted to be engaged by the cam p". The cam 11" is const'ructed to turn the wheel \V the distance of one tooth through one engagement with the pin to.

A. cylinder Y is attached to the ratchet W, the periphery of which is adagtcd'to carry a i'riction'strap 3 which has extensions y and 1 A screw yflpassing freely through extension 1 and having a seat in extension y, serves as-a means for regulating the amount of friction produced by the friction-strap. The outer end of the stud-shaft o is reduced, and threaded, on which a nut y is adapted to lit by means of the threaded hole t/ passing through a hub 1 formed on the nut. A l'riction-strap controlliru, spiral spring is ,adapted to be held by the nut 1 by means of the slotted stud 3 a stop-pin y serving to keep a tension on thcspriu r. 'lhe huby on the nut is of suilicient height to allow of the free play of the spring and of snllicient diameter to retain the uicch.-tnism on the st udshal't o. The extending end oi the spring 1 when-tho nut is in place comes into contact with a pin (not shown) extending from the under side oi the extension 1 ol' the trim tiou-strap and yicldiugly r tains the same. nuainsttho itH'Willti movement of the ratchetwheel \V. l I

A friction device substantially l hcsalnoas the one just described in connection with the ratchctwvheol \V is used for (:(ihtrolliilg the cam-ratchet l. i

The friction devices used in connection llO with my present invention are not herein claimed. United States Patent No; 585,225,

, granted to me June 29, 1897, broadly covers the principle invdlved in these friction de-' I rangement Z, formed on a disk which is adapted to take the place of the segment when shorter stops are wanted in the needlebar-a ctuating ratchet than those produced by the regulating-segment shown in Fig. 8.

' I will now explain the functions of the variou's'parts and their operation so far as it is thought necessary for a complete understanding of the invention.

Assuming, to begin with,tthat the ends of the links m, h, n 3 and r are adjusted centrally over the fulcru ms of the segm ent-levers,

.with which they are connected, straightway stitching only will be produced. If now'the link m is adj ustedout on the segment-lever M, (the outer end of the said leverbeingbever G, when the said lever M is in its highest 'low its highest position, as shown in Fig. 2,)

the needle-bar will get an ordinary lateral vibration which will produce the. ordinary zigzag or overseam stitch. The guideway formed in the segment-lever M is curved from the center of the fulcrum of the segment-leor horizontal position. Consequently adj usting; the link m out on the lever increases the downward stroke of the link m, and through it the shoe k and the endof the link it, which is attached thereto. Now adjust the ratchet wheels 0 and W so there will be one com'--' plete circle of teeth for the pawl 11' to engage and adjust the end of the link out on the segment-lever N. The result will be, of course,v

.throughthe action of the pawl M, a cont/in,-

uous rotation of the ratchet-wheel and through it uniform reciprocations of the slide L,which in turn will actuate the lever M on its fulcrum,

- and the movements of this lever will in turn,

through its connections, increase and decrease the extentot the'lateralvibrations of the needle-bar.

.If the plate g is in the position shown in Fig. 2, this increase and decrease will be equal on each side of aeenter line; but, however, if

the lower end of the plate g is adjusted to the' right the extent of the transverse slot g the increase and 'dccrease'will be al'l on one side eta center line. The curved slot or guideway g in the auxiliary plate is made from the centerof theconnection between the link 1: and the lower end of the lever K when the said lever and the levers G and II are in the center position of their lateral movement and the auxiliary plate is in the position shown in Fig. 2; The transverse slot g in the lower eud ot the auxiliary plate g is of sullicient length to permit the plate to he moved laterally the extent of one-half (if the lateral move ment it receives from the cam g,iso when the plate is adjusted to this lateral position the I increase and decrease in the lateral vibra emcee tions of the needle, as above stated, will be on one side of a center line.

The curved guideway 01. in the plate n of. the lever NY is curved from the center of the connection n between the link- 11 and the pawl-lever 71. when the member *nof the lever N isin its highest or horizontal-position to which it is moved when actuated. This formation of the guideway n insures the ending of the forward stroke of the pawl 02 at one 'point under any adjustment of the end of the link n? on the segmentT-IevrL. The teeth inthe ratchet -W are sufficient to close the gaps 0 in the ratchet O, and the gaps 103 in the ratchet W are ofthe same extent asthe gaps *0 in the ratchet O, and the guideway w in the ratchet O is of s11 fiicientextent to admit of the adj ustmentof the ratchet W so as to cover the gaps o in: the ratchet O with the teeth of the ratchet W. To close the gaps o inthe ratchet O, the'screw w? is loosened, (which in turn loosens the clamping-shoe 20", which is formedv to slidein the guideway M.) Then the ratchet-wheel W is turned to the right until the teeth of the ratchet-wheel W close the, gaps 0 ,-when the shoe U115 is again clampedby means of tightening the screw w.

- One of the purposes for which themeans'for forming gaps in the. peripheryof the feedwheels'is provided is to keep the relative position' of; the finishing of the stroke of the actuating-pawl the same with respect to the position of the mechanism actuated through its movements. The adjustment of the disk 0 circularly on the ratchet O, as shown in Fig. 4, is for thepurpose of adjusting the position ratchet O, the said earn, as has beenseen, being fastened to the disk. To more fully explain the use of the gaps in the periphery of the feed-wheel for the purpose named,- we will assume that the'pawl n is being actuated so as to move'the ratchet which it actnates forward four. teeth at each stroke and that there are no gaps in the feed-wheel orthat the gaps 0 are closed. It is of course understood that the slide L under these conditions will be reciprocated through the action of the cam o and that some individual stroke of the actuating-pawl n will finish the movement of the slide L in one direction, and some other individual stroke-of the sa-idpawl will finish its movement inthe other direction; Now the difficulty under thesecircuinstances is when the, finishing moveme'ntof the slide is reached l half of the stroke of the pawl may finish the movement-oi the slide, and the other halt may i commence the return-movementof the same. When the extentot' the lateralvibration of the needle is being automatically increased and decreased, the maxiniuntvibration is reached can be seen that if the extreme movement of the slide it is made in the middleoi' a stroke of the actuating-pawl n the needle-ha r is not in the extreme position laterally it would be in if the slide L reached its extreme position at the finishing of a stroke of the actuating pawl. As thcstrokcof the actuating-pawl is increased thedefect caused byits not finishing a movement of the cam it actnates in unison with the finishing of its stroke is increased. Of course ordinary ratchet-wheels can be set so the finishing stroke of their actuating-pawls will be in unison with a particular movement or position of the cam which they actuate; but if the pawl is being actuated so as to feed the wheel more than one tooth at astroke any change of the wheel relative to its actuatingpawl less or more than the number of teeth through which the pawl is engaging the wheel will change the unison between the. finishing of the stroke of the pawl and a particular movement of the cam it actuates. For example, we wili assume that the stroke of the actuating-pawl is the extent of six teeth of the ratchet-wheel andt hat the finishing action of the cam it actuates is innnison with the finishing of a stroke ofthe actuatingpawl. Now it is evident that if we turn the ratchet, say, for example, three teeth of the wheel relativeto the actuating-pawl the finishingof the stroke of the pawl will not be in unison with the finishing action of the cam it. actuates. if the wheels are'set right; to start with, just as soon as they are changed, inadvertently or otherwise, defective patterns of stitches are produced. If the wheel is being fed six teeth ata stroke of the actuatingpawl and the operator moves the hand-wheel in removing the work less than enougl t make a complete movement of the actuatin 3C pawl, the movement of the stroke of the actuating-pawl will be thrown out of time with the movement of the cam and the mechanism actuated by the cam.

produce complete movements of the actuating-pawl (provided it is enough to move the ratchet one tooth)--,will throw the stroke of the pawl out of time with the mechanism which it actuates. My mechanism overcomes this defect, as will be seen by the following: When it is desired to only use the gaps o" for the purpose of keeping the finishing, oi the stroke of the actuatingmwl in unison with the finishing of a particular partoi' the actuating movement of'the cam actuated by it, the slot 10' is closed by means of adjustin; the segment to, so as to prevent any movement. of the'screw w in the slot 11:. in this position the screw Iv serves as an adjnsiing connection between the ratchots and \V i'ordeterminingtheoxtentof the gaps 0". Now if it is desired, for cxainple, to feed the ratchet four teeth at each stroke of the aotnating-pawl the caps 0 are opened the extent of three teeth, so that when the pawl reaches l-lll' gaps it. will just jump over them teeth.

Any movement of thelmachine other than that which will and engage the first tooth on the other side. The gaps are opened by loosening the screw 10 and turning the ratchetW to the left the desired extent, when the screw is of course again tightened. The pawl n always finishing its stroke at one point under difierent ad= justmcnL-s of the extent of its action serves, it is seen, in combination with the gaps and their being opened in a direction opposite to the forward movement of the pawl, in always keeping the action of the individual strokes of the pawl .in unison with the movement, or a predetermined part of the movement, of the mechanism actuated by it. his of course understood that one gap is all that is necessary for this purpose.

The gap 19 in the teeth of the ratchet P and the means for adj ustably closing the same are for the same purpose as the gaps in the ratchet W, so far as the working of the mechanism has been explained. The curved gnideway s -in the lever S is formed from the center of the connection between the link 8 and the pawl-lever p when the lever S is in the ex-,

treme forward position of its movement. Consequently the forward movement of the pawl, as before stated, always stops at a given point, the adjustment of the extent of the stroke of the same aifectingit in one direction only-namely, its backward movement from the fixed point \vhereit always terminates its forward movement. The ratchetwheel P preferably has forty-eight" teeth in its periphery when the gap 1) is closed, and the gap is the extent of six teeth of the wheel. The circumferential extent of the different proportions of the cam p is preferably as follows: from p' to p" the extent of six teeth of t-hc i atchet; from p? to 17", thirty teeth; from 11% to 1 six teeth, and from p to p, six The action of the said cam-p on the feed-re gnlatin i lever lt through the intermodiato ,mechanism is preferably as follows:

liroii i to f the said lover is moved in the direction in which it is moved to shorten or reverse the stitch. From F to p itd'oosiiot actuate the i ccd-rogulati ng lover at all. From p to p" it moves it in the direction in which it is moved to long! lion the stitch or to actuate the food to move the? work in adircction from the o 'ierator, and from p" to 1) it does not move the feed-regulating love 'lho graduated scale on theedge ol. the part 'I' oi the food-regulating lever R (shown in For lever T when the lever 'r is in'a centralp'osi tion with respect to its'movements; 4 Th nstit is seen that adjusting the end of the-linkv'r crank lever 1" increases the extent of the" movemen-tof t-he feed-indicatinglevereqnally on each side of a given line; and that consequentl y when the indicator Wis secured in .a central position the extent-of the movements of the feed under the action'of the cam 12"; will be the same" back-ward and forward When 'it'is 'de'sired to lengthen the'stitch backward-and forwa'rd,- the-endof the-link r is of course adjusted to the ri-ght in the guide way r and vice versa wh'enit is; desired toshorten the stitch. When-it is desired to. lengthen the'stitch more in one directionthan the otheror to have its movements all in one.- direction, the indicator r is adjusted to dne side of' its central'position The particular side to which it is'adjusted w'illot course determine the-direction in which the change will be'made,'as-ifs well understood.-

The actu'ati'ng-c'amsffo'rthe mech nism are timed'a's follower The cam'g so as to move,

the needlebar laterally-when it is in or -nearits hi'ghes-t position; at which time, ofcourse; the needle is-di'sengaged from-the -goeds, andthe cams is timed soas to actuate the pajwl' n forward at aboilt' "the same time When the pawl n" moves forward, the pawl pflmoves backward; and when the pawl n moves bachwardthe pawl p moves forward, asis seen by the connections between the pawls and the lever S. Thns'it'is understood that the ratchet-wheel P is'actnated-after the feeddog hascom'plet'ed its movement of the work and become disengaged from the same; it'being understood; of course, that the jtinie of the movement of the feed dog relative to the movement of the needle-bar is snbstaii'tially' the same as itl' ordinary zigzag orovei'sea i'ng mac hinesy in which the needle ha] i ismofied laterally. The. cam p is so placed in theratchet-wheel P relative to the gap 1) that the friction-,roll'er r* on the vertical me m-berlof the lever r is always at 12*" at'the-fin-ishing a stroke of' the actuating-pawl p; when the stroke ofthe pawl isj'the extent of 'one,"two,- three, or six 'teeth of the wheel. Thus i't is see'n thatif the stroke of the pawl is" the 'ex-' tent of six teeth of the ratchet the feed of the workwill be reversed between the'coniple-tion of one 'stitclr and thebeginning of another} provided the indicator ris in-a central posi-.

tion "or tinder any adjustment of thc i-ndiczv tor'the chah'ge in the'movement 'of the feed ing fulc'rnmcd on the vertical member of'thc wguideway in thewsegl-nent-lever h, in

Joneendof thel ink h is ad 'iistably connect of its actuating movements g. Thus itisseen 1 thatthechtinge, infthe working position of the-needleis lin flflo It is .now functions ,ofla ratchetwheel actnated mechf number of-- lateral movements of the needle.

functibhmof a ratchemwh eelactnatefl imech-v directionofijt-he-lnoyei ntfi, or the feedand to adjust and predetermine the, extent of the is: also seen that so far 'as explained {we have .;.a 'ctnatfed mechanisms are 1189 n ,combinajtion their actuating positiongelativ e to each mentof th'etneedle thronghthe action of-the 'and fior'wardnthe stitchingon' reversal .will be of: the pawls ,being as above stated; .wouhl be lateral: m-ovcment and .c 'onsequently it can i seen the r .anism forantomatically'making an unlimited;

anismtadafitedlto, automatically change the' other determinesrveny largelythe natnrgi or patternof the stitch; Eor'examplqsnppos e the actiontof theipawl; n is .theextent of ,three fiteeth ofxthe ratchet ;and the pawl p sixth "teethiof the ratchet Fandj the; mechanism so vadjusted that there, is, pnlya lateral move,-

ing 'or-lateral vibrating position of the nee-p 1 r out on thehorizontal member of the bell-J: dle barf is changed laterally, Thecnrved 1M is preferablycurved,fro m' theg centerlotlthe connection between the said link and the horizontal member of .1li.e hell-cranklever H l i when thexsaid lever His-in ,a-pgisiition centra't;

t and changesin theexten t of thesaidlateral' I i movements: for; automatically? changing the f working 1 position of these lateral movements; :and for adjustingthe extent of thecha'ngtg in the lateral movements of the ,workingrp osi-j tion of the needle. Lhav lsn rp n dthet movement oneither sideof acenterl-ine. 1 It means for automatically keeping'the ;movevmentss of thelstrokcsqfgthe pawlsrin unison with "the movements of the. cams actuated thr'o igh the action ot the pawls. It canbe seemrof. course, that. when these two'ratchet-j slide 1L 'ontthe segment lever; 1L2 and through it on:th;e needle-bar. Under these conditions 7 'theratchetgl willmake two complete revolntions to one of theratchet O. Now suppose the ratchet-Bis circularlyadjusted or timed relative to the, ratchct;,O so th at, whe,nthe 'slideL'is in: one of its extr'eme.;positions to one side of the center -efitsaction 'thefeed is reversed eiIt-canfbe' readily seenthatj f I the extent of the feed ,i s ,,t l1e,samebackward over the sainepath which was stitched in the forward movement'the nnmben oE;-. stitches I made onftreversal,wnich in this case, thestroke I .twu: rNowlif theratchet is turnedone: vfou'rtharound the ,reversalofthe teed will J me when the needlev is; in the -middIe of its be seenlthe reversal wilgl,not be over the same i patlratall, andL-the'reftn'ea-di'ilferent 'pattel n r 'altogethorzwvill bestilchci hyit being; understood, oficonrse; that ind'icatorr, is-sccnrcd in a central position. Thus it is seen that changing the position circularly of one of the ratchets only changes the pattern stitched. Every change made in the actuating posit ions relative to each other of the primary cams actuated by these separately-actuated ratchet wheels changes the pattern stitched, as does any change in the extent of the stroke of the actuating-pawls.

The difficulty or defect inthis combination of two separate adj ustablc ratchet-actuated mechanisms is when it is desired to use them in combination. As above explained, the inadvertent turningof one of the ratchets changes the nature of the stitch.

'i will now explain the working of the meclr anism I provide which keeps the ratchets the same relative to each other when the mechanism is set for any particular stitch, or if they are inadvertently turned out of their proper relation with each other at once brings them into their proper position again. The face of the actuating-pawl n is of sufficient width mortgage the teeth of both the ratchetwheels 0 and W. To prevent the action of the ratchcts and through them the cams actuated by the ratehets from changing with respect to each other, adjust the segment wa so the ratchet W can be moved the extent of one tooth of the ratchet 0. Adjust the screw vn so the extent of the gaps is the extent of the action ofthe pawl 11. when the connection 10 is at the forward endof the slot 11 The gaps 0' and guideway 10 in the ratchet and the gaps hr" in the ratchet \V are located so that under any adjustment ofl heaatt-chet W to close or open the gaps o thetpawl a actuates the ratchet 0 through engagement with the teeth on the said ratchet at least one movement of the actualing-pawl before a gap reaches the same, and thereby the ratchet is moved forward relative to the ratchet-\\, the object of which willappear int he following explanation of the workings of the device.

The operation of the device for keeping the movements of one of the ratchet-actuated mechanisms in a predetermined position relative to the other ratcltot-actualed mechanism is as follows: Assuming that the connection w is at the rear end of the slot as the ratch ts and \"V turn under the action of the pawl None of the gaps I1-"in the ratchet \V reaches the pawl, exposing the teeth-of the rat-lh'et 0 only to the action ol' the said pawl, and as the connection 14" between the wheels is in the end of the slot It feeds the wheel ahead ono tooth, which-[wings the coniiection 41' to the forward end of the slot m after which the two wheels move forwa rd together. 'lliis opens the gaps o' the full extent. of the stroke of the pawl 11", and of course withouthelp from some other source t-h c ratchct-whot-ls t) and \V will not move forward. The fat-col the pawl H on the vertieal member of the bell-crank lover in" is only of suflicient width to engage the teeth during four stitches.

10 and 1PM of the ratchet-segment. w. The cam p on the segmentp is constructed so that when it comes into contact with the projecting pin to on the horizontal member of the bell-erank lever to it will only engage the same sufliciently to cause the pawl In to move the ratchet W, through the ratchet-segment to, forward one toot-h. The spring w \vhich is attached at. one end to a fixed pin project-- ing from the plate i and at the other end to the pawl 71*, serves as a means for holding the pawl into engagement with the teeth of the segment to" and returning the bell-crank lever 10 to its normal position after the pin in is disengaged from the cam p".

By means of the guideway p in the disk p" and the slot p in the segment 10, as before stated, the cam 1)" can be circularly adjusted completely around the ratchet P. The number of teethon the members of the seg ment to? are seven, respectively, and this segment m is so placed that the first tooth of the teeth on the same comes under the pawl 10" during the last engagement between the pawl 11. and the teeth of the ratchet 0 before the gaps o are reached. If the adjustments of the actuatingqmwls are such that the ratchet P turns one or.more equal number of times during one-half of a revolution of the ratchet 0, there will he no stops in the action of the mechanism. Under these adjustments during the return stroke of the pawl a after it has made its last engagement with the ratchet 0 previous to one of the gaps 0 coming under said pawl the cam p" comes into engagement with the pin to on the bell'crank lever 11 and act-mites it, and thereby moves the ratchet forward one tooth, which closes the gaps o this extent, the result being thatthe pawl n engages the first tooth on the op;

posite side of the gap, and there is no stop in the action of the mechanism, as'before stated. The adjustment of the segment 1) and through it lheeam p dctermines the relative actuating position of the mechanisms. if the pawls are adjusted so their ratio of action is the same as above mentioned, then there will be no stops in the action of the mechanism; but if the ratio is not as above mentioned thon there will be stops in the action of the mechanism, This adds largely to the variety of stitches, for, as it is of course understood,thesc stops in the mechanism change the pattern orstitch. l orexample, if the stroke of the pawl n7 is the extentof six teeth of the ratchet O and the extent of the stroke of the pawl p" is six teeth of the ratchet P ono of the. gaps 0" will reach the pawl n in four stitches, and as there is only one cam on the segment 'p' there will be eight stitches made before the cam p 'on the same reaches the pin t1: on the bell-crank lever 10. lensequcntly the mechanism acting on the lateral movcn'tonts of the needle will remain at rest. it is of course under-. stood that if one of the ratchet-whecls-is turned out of its relative position with restitch-forming mechanisni'comprising a vertically-reciprocating. needle-bar adapted to move laterally, means for moving the said needlebar laterally comprising a ratchetwheel, an actuating-pawl in engagement with said ratchet-wheel, a feed mechanism, means for regulatingthe direction and length of said feed comprising a second ratchet-wheel, a second actuating-pawl inengagement with the said second ratchet-wheel, and means adapted to automatically'place the finishing of a predetermined lateral movement of the, needle-bar. relative to the finishing of a predeter mined movement ofthe feed.

10, In combination in a sewing-machine, a stitch-forming mechanism, a pawl-actuated toothed wheel, a connection between said wheel and the stitch-forming mechanism, one or more gaps in the teeth of said toothed wheel, a second toothed wheel, one or more gaps in the teeth of said second toothed wheel, a'connection between said first and second toothed wheels adapting the latter to turn a predetermined extent and then toengage said first toothed wheel, a second pawl adapted to engage said se'cond toothed wheel, and adjustable means independent of the action of said first toothed wheel adapted at intervals to actuate the said second pawl. I

' 11. The combination withasewing-machine havinga vertically-reciprocating needle-bar mounted and adapted to move laterally, mech- .anism adapted to move the same laterally,

and a reversible feed mechanism, of means adapted automatically to reverse or change the said reversible feed mechanism comprising a lever rigidly mounted on the feed-regulating shaft in the outer end ofwhich is formed a groove concentric with the fulcrum of the lever, an arm loosely mounted on the aforesaid feed-regulating shaft in the outer end of which is 'an indicator, an adjusting connection between the arm andthe indicator, an oscillating lever, and a connection between the arm and said oscillating lever.

12; The combination withasewin'g-machine having a vertically-reciprocating. needle-bar mounted and adapted to move or vibrate laterally, of means adapted to vibratetlaterally the said needle-bar and automatically move laterally the working positon of said vibrations, comprising a bell-crank lever, and

means for oscillating the same, a lever fulbetween the slide'and the segment-lever, and

means adapted to reciprocate the slide.

14. The combination with a sewing-machine havinga vertically-reciprocating needle-bar mounted and adapted to move or vibrate laterally, of a segment-lever and means adapted to vibrate the same, an auxiliary piece attached to said segment-lever adapted to be adjusted laterally thereon, and a connection between said piece and the aforesaid needlebar. Y

15. The combination with a sewing-machine having a vertically-reciprocaiing needle-bar mounted and adapted to move or vibrate laterally, of a segment-lever and means adapted to vibrate the same, a second segment-lever the center of fulcrum of which is the same as said first segment-lever, an adjust-able con nection between said segment-levers, and aconnection between one of 7 said levers and the needle-bar.

16. The combination with a sewing-machine having a vertically-reci-procating needle-bar mounted and adapted to move or vibrate laterally, of astud, a segment-lever composed of two members fulcrumed on said stud, an

adjustable connection between saidmembers, an actuating device in engagement with one'of said members, and a connection betweenitheother one of said members and the needle-bar.

17. The combination with a sewing-machine having a vertically-reciprocating needle-bar mounted in a gate, said gate adapted to move or vibrate 1aterally,of an operati vely-mounted,

segment-lever composed of two members, {an adjustable connection between said members, a curved slot in one of said members, a shoe adapted to slide in said slot to and from the center of the fulcrum. of saidlever, a link, one end of which is connected with'the aforesaid gate and the other end ofwhich is operatively connected with the aforesaid shoe,and means adapted to automatically reciprocate the shoe.

18. The combination with a sewing-machine having a vertically-reciprocating needle-bar -mounted in a gate or frame and a comple-.

mental stitch-forming mechanism, of 'a fixed stud on which one end of an actuating segmerit-lever is fulcrnmed, a downwardlyflxm tending sleeve serving as a "bearing for the same, an annular piece having an upwardly-, extendinghoss operatively mounted on s 'aid sleeve, an upwardly-extending boss formed on the lower end of the segment-leveryan auxiliary plate,the upper end of which is rig idly attached to the boss extending upwardly from the annular piece and the other end ad,- justably attached to the boss extending upwardly from the segment-lever, a fink, a connection between one end of said linkand the needle-bar gate, and a curved slot in the auxiliary plate in which the other end of said link is connected.

19. The combination with asewing-machine having a vertically-reciprocating needle-bar laterally, mechanism for moving the said needle-bar laterally comprising a ratchet-Wheel, means for operating the said ratoheowheel comprising a pawl-lever, a pawl adapted to engage the said ratchet-wheel carried by the said pawllever, a second rateheivwheel, means for operating the said second ratohetrwheel, means carried by the second ratehein wheel for moving the aforesaid pawhlever in one direction, and means independenhof the second ratchet -Wheel for moving the said pawl-lover in an opposite direction;

29. In eom'binanion in a sewing-machine, stitch-forming mechanism, feed mechanism, mechanism cooperating with the stitch-forming mechanism comprising a ratchet-Wheel, a