US935847A

US935847A - Sewing-machine.

Info

Publication number: US935847A
Application number: US46112208A
Authority: US
Inventors: James T Hogan
Original assignee: National Machine Co Inc
Current assignee: National Machine Co Inc
Priority date: 1908-11-05
Filing date: 1908-11-05
Publication date: 1909-10-05
Anticipated expiration: 1926-10-05

Description

J. T. HOGAN. SEWING MACHINE. APPLICATION FILED Nov. 5, 1908.

Patented 0011.5

1909. s SHEETS-SHEET 1.

INVENTOR ATTORNEYS J. T. HOGAN. SEWING MAGHINE. APPLICATION IILIzD Nov. 5j 190'8.

8 SHEETS-SHEET 2.

lNvENoR BY Y i@ ATTORNEYS* l .Patented 001;.5,1909.

J,T.H0GAN.

SEWING MACHINE.

J. T. HOGAN.' SEWING MAGHINE. APPLICATION FILED `,NOV. 5, 1908.

Patented 0Gt.5,1909.

J. T. HOGAN. SEWING MACHINE. APP-LIOATIONHLBD Nov. s, 190s.

SHEETS-SHEET Patented Oct. 5, 1909.

'J,T.H0GAN. SEWING MACHINE. APPLICATION FILED NOV. 54, 1908.

Patented 001i. 5, 1909.

8 SHEETS-SHEET .T. T. HOGAN. SEWING MACHINE. fABPLIGAT'oN FI'LBDl Nov. 5, 130s,

Patented Oct. 5, 1909.

a SHEETS-snm 7.

'wmv Es'sE's:

J. T. HOGAN.

SEWING MACHINE APPLICATION FILEDv Nov. 5, 1908.

Patented 0011.5, 1909.

8 SHEETS-SHEET 8.

JAMES T. HOGAN, uOTE JERSEY CITY, NEW JERSEY, ASSIGNO TO THE NATIONELL IACHINE COMPANY, OF MAMARONECK, NEW' YORK, A CORPORATION OF NEW YORK. i

SEVINGJJIACHINE.

To all whom ttonay concern:

lie it known that i, Jantes ',i. liooAN, a citizen of the lluited States of .\meriea, and a resident of Jersey (ity, oauity of lludson, State of New Jersey, have invented eertain` new and useful improvements in Bewil|gM:teliincs, of which the 'following is a specification, reference being'hadl to the arcompan ving drawings, forming a part thereof.

My invention relates to sewing machines,

.ments as 'to reduce to a minimum the Wear thereof, and also to reduce friction of the moving parts so as to facilitate the easy running of the same.

In carrying out. my intention, I provide means for feeding the work forward and backward in right lines, needle mechanism, and means for shifting the field of operation of the needle mechanism so as to produce stitching on -eitherfside of the button hole at will, and at the end of the button hole inthe manner desired.

For forming barring stitches at the end of the button hole, I provide means for lengthening the throw of the jogging movements of the needle upon opposite sides of a neutral line, the side stitching being arranged to be carried out first upon one side of the neutral line and then :,-n the other side thereof. itt thc time thebarring stitches are to be made, i move the na)vement-transmitting means to a neutral point with respect to a guide which is shifted to change the field of movements of stitching from one side of the said neutral .line to the other.

AThis enables the shifting movement to be Specification of Letters Patent.V

Application led November 5, 1908.

itatented tiet. 5, i999.,

serial No. 461,122.

).'Iy invention also consists l.in certain novel feattnfes of construction and. combi.

nation of parts, as will set forth.

in order that my invention may be thor oughlv uiulerstood` twill now proceed to describe an embodiment thereof with reference to the accompanying drawings illustrating the same, and will then point out the novel features in claims.

n'the drawings, Figure l is a View in side elevation of a sewing machine embodying my invention. Fig. 2 is a top View thereof. Fig. 3 is a' top"t'iew partly in horizontal section and with the cover plate vvhich iii-closes certain mechanism in the over-hanging a rm. removed.l Fig. 4 is a view in horizontal section .showing the top plate and parts thereon, the section being taken through the uprising part 0f the overhang'ing arm. Fig. 5 is a bottom view of the machine. Fig. (i is a detail view in vertical longitudinal section through the base of the machine, the plane of section being` taken substantially upon the. line (SWG of Fig. it. Fig. 7 is a view in front elevation of the end of the overhangng arm and parts contained there hereinafter be fully in,` the cover plate thereof being removed( Fig. S is a vieiv of the machine in transverse vertical sectiolnthe plane of such section being` transverselyv through the uprising portion of the overhanging arm of the machine. Fig. Q a View of certain parts illustrated in 3, the said parts including the means transmitting mowaucnts to, 'and controlling the nioveinents of, the vibrating gate which carries the needle bar, the parts in Fig. 9 being slu vn in different positions from that in which they are shown in Fig. 3. Fig. l0 is a detail view in transverse section of certain parts shown in Fig. 2", including the cam for producing the jogging movements of the needle for over-steaming stitches, the vibrating` member operated thereby, the guide and sector carried by said vibrating member, the pinion for shifting the posi tions of the guide.v and certain other correlated parts. transverse section of the same. parts shown in Fig. 10, together with other correlated parts, the plane of section. being taken substantially7 upon the line t1--11 of Fig. 3.

Fig. l?. is a detail face view of two of theV cams em lo 7ed. tone/ther with certain cor- Fig. '11, shows a detail view inrelated parts. Figs. 13 and 14 are face views of certain parts comprised in the means for controlling the tield of movements of the needle bar, said parts being shown in one view in the position they will assume when the field of movements is adjusted for stitching upon one side of a button hole, and in the otherv view in the position they will assume when the field of movements isadjusted for stitching upon the other side of the button hole. F ig. 15 is a diagrammatic view illustrating the lines of movementsI of certain parts, the parts and movements being represented by lines and dots. Fig. 1G is a detail top view of certain parts of the cutter tripping mechanism, showing the same in the position in which they are shown in F ig. 3 but segregated from other parts of the machine. Fig. 17 is detail top view of the same parts showing them in other positions.

The machine comprises the usual bed 1 and overhanging arm 2. Mounted to rotate in the overhanging arm 2 is the main shaft 3 driven by a suitable pulley or band wheel 4. From this drive shaft all the moving parts of the machine derive their power.

Beneath the base plate of the machine (see particularly Figs.` 5, (i and 8) is a ratchet wheel 5 to which is imparted a step by step movement by means of a vibratingpawl-carrying plate (5 connected by means of suitable links and levers with an eccentric or crank arm 7 upon the drive shaft 3. The said ratchet wheel is mounted to rotate with a stub shaft 8, and, rigidly secured to said ratchet wheel, whereby they will positively rotate therewith, are cams 9, 10 and 11. The cams 10 and 11 are formed in one piece, being face grooves in a member or disk l2, and a spring pressed band 13 surrounds the said member or disk 1Q, acting as a brake to prevent movements of the parts other than the movements positively given thereto hy the feeding movements of the pawl carrying plate (3.

The cam 11 is substantially a heart-shaped cam with dwell portions, and is employed for the purpose of bringing about the feeding` movements of the work operated upon. rlhe work is supported by means of a work clamp 14, the work supporting plate 15 of vwhich is secured to va plate 16,-mounted to slide longitudinally iu guideways` 17 upon the base plate l of the machine. rl`his sliding plate 1G is connected by means of a link 18 with a slotted arm 19, rigidly secured upon a rock shaft Q0. The connection of the link 1S with the arm 1S) being in the slotted portion thereof, adjustment is permitted to vary the throw of movement of the work plate and hence to regulate the extent of feeding movement imparted to the work. l'he rock shaft Q0 penetrates the bed plate of the machine, and is provided upon its under side with an arm 2.1,.the said arm carrying a cam follower which engages the heart-shaped cam groove 11 above referred to. The shape of the cam is such as to give the work a steady and uniform movement first in one direction and then ih the other, with a slight dwell between the said reverse movements during which time barring stitches may be accomplished at the extremities'of the button ho e.

The shaft 8 which carries the ratchet wheel 5 and the cams, extends through the/base plate 1 of the machine to the other' side/thereof, and at its upper end is provided with an actuating ratchet wheel 22 adapted to be manually operated by means of a pawl carrying hand lever 23. By means of this hand lever the cams may be manually rotated vwhen desired, irrespective of the rotation of the driveshaft 3.

I wvill novv describe the parts relating to the means for transmitting vibratory or jogging movements to the needle to produce over-seeming stitches, and to the means for controlling and regulating the field and eX- tent of such moven'ients, so that the stitching may take place upon either side of the central line of the button hole at will, and at the ends of the button hole, the stitches at the ends of the button hole being barring stitches of greater length than the side stitches if desired, such as are common in the form of button hole known as square-end button holes.

The main shaft 3 is provided with a bevel gear wheel 24, arranged in mesh W-ith another bevel gear wheel Q5 mounted upon a vertical stud QG secured to a stationary part located in the hollow arm 22, the axis of the stud disposed at right angles to the axis of the shaft 3. Fast to the bevel gear Wheel 25 is a cam 2S, which I will term hereinafter the vibratory cam. This cam is the one which imparts the jogging or vibrating movements to the needle bar to produce the over-seamnfv stitches required. A Aplate or member 29 is located upon a stationary plate 2T, being pivoted thereto by means of a pivotal stud 30. The plate or member 29 is provided with a downwardly projecting stud 31 upon which is mounted an anti-friction roller. The stud passes through an open slot in the plate 27, and is-received within the groove of the cam Q8. B y this means the cam 28 in its rotation, is caused to impart a vibratory or rotary reciprocating movement to the plate or member 29 about its pivotgBO. The vibrating plate or member 2f) carries a. guide piece 32, such guide piece being attached to the plate or member by means of a screw 33 which forms a pivot for the guide piece 552 upon the same. At its opposite ends the guide piece is provided with gear teeth B4- constituting a gear sector, the renter of which is concentric with the axial center 33. The pitch line of the gear machine needle bars.

axis of the pivot 30.

er small gear wheel 35, mounted upon a stationary axis 3G, is disposed withits teeth in mesh with the teeth of the gear sector 34. Secured to this gear wheel is a small pinion 37, the teeth of which are in mesh with the teeth of a sector 38 rigidly mounted upon a vertical shaft 39. The vertical shaft 39 passes down. through the uprising portion of the overhanging arm 2 to a pointbeneath the base ofthe machine, being provided at its lower end with an arm ait), the said arm carryingI a stud and roller 4l, constituting a cam follower', tor the aforesaid cam 10. Rotation of the cam 10 will produce at in'-v tervals a rocking ot' the shaft 39Jand consequently a movement of the sector 38. This will transmit movements through the pinion 37 and small gear wheel to the guide piece 32, shifting the position of the same with respect to the vibrating plate or member 29', upon which it is mounted. This shifting movement will be an movement entirely independent ot the vibrating movement which it derives from its connection with the plate 2f), and it will be noted that the two movements in no way interfere with each other, its vibrating movement with the plate 2S) merely causing the sector 3l to rolll around the gear wheel 35, aml the movement of the gear wheel 35 having no tendency t'o impart any movement to the plate 2S) because of the fact that the pitch lines of the gear wheel and the sector 3ft are both intersected by the axis o'l`A the pivot 30 upon which the plate 2t) is mounted.

The guide-piece constitutcs a support Yt'or a slide 42 mounted thereon and engaged to move with respect thereto toward and away from the axis of the pivot i555. 'lhis slide is connected pivotally to one end ot' a link iii. the other end ol' which is pivoted to a vibrating arm il, oivotcd at -lto a stalionar)v portion ot' the arm el' the machine. rl`he arm -l-t is :uljustably connected by inc-ans ot a link lo with an arm -tT secured to, or formed as a part oli, the needle bar gate. rl`he needle bar gate is pivotcd upon centers 4S, the needle har -iti carried thereby partaking of the swinging movements ot' the gate, but having also the nece-sar)Y longitudinally reciprocating movementsconnnou to sewing teeth Bat is co-incident at one pointl with the By means ot the link and lever connections just. explained. any movement given to the slide i2, lengthwise ot the horizontal portion ot theoverhanging arm of the machine, will transmit a corresponding movement to the. needle gate at about right angles thereof. Movements of this character are movements sulistantially longitudinal of the link 43, and hence vibratory .movements of the vibrating arm 44. Such movements are -tlie guide piece B2.

transmitted through the link 4G to the arm' l? ot the gate, and, as the pivotal connection between the link '-lt and the arln 4T of the gate is at about right angles to the position ot the needle bar in the gate, such movements, in being transmitted to. the'gate, are 'transmitted atl substantially right angles thereto and hence transverse of a line longitudinally through the horizontal portion of the arm. By reference to the view of the machine shown in Fig. il, it will be seen that the clothclamp. and other parts are so disposed as to support the work for the making ot button holes withltheir central ,lines longitudinal with respect to the overhanging arm of the machine, and hence the jogging movements above described with reference to that portion of the gate holding the needle har, will be transverseof such a line as will be well understood. The proportion of movement transmitted from the slide to the needle bar may be regulated by manual adjustment otl the lever t6 along the slotted portion of the vibrating arm alf-lf, such adjustment being made, however, before the comn'iencement of the work and remaining the same during any one complete operation ot.' producing a button hole. lVith this link properly adjusted before the machine commences to operate,` variations-in the length ol Istitch will only be ell'ected during the running ot the machine by a change ot' posit-ion ot' the slide l) with respect to the pivotal center -I-i ot the `guide piece 2f).

The position of the slide 4-2 in the guideway ot' the guide piece Iii). is controlled by means olf a lever :30 disposed immediately above the link i?, being pivoted at 51 to a stationary point and engaging ascrew connected with. the slide by means of a slotted portion 52. intermediate its ends the lever 5o is connected by means of a link 53 with an arm .il seciu'ed upon a vertical shaft 55. The vertical shaft 55 extends downward through the uprising arnrof the machine, prnetratinf;` the base ot the machine to the under yside thereof, and` beneath the base, is provided with an arm 5o. This arm bears against the periph-ery ot the cam 5) which I will hereinafter ret'er to as the barring cam. The barring cam. in the present example of in v invention. hasI two oppositely disposed projections. il'hen these projections engage the arm Titi. the shaft 55 is rotated to an extent sutlicient to draw the slide 42 downto a position opposite to, and substantially concentric with, the axial center of At this point a sutticient range ol jogging movement is imparted to the guide to transmit movements to the needle bar sutlicient for barring stitches.

In order that the somewhat peculiar' relationship of the movements ofthe vibrating plate or member 29 and'the guide piece 32 be made plain, I 'will now ref to the diagrammatic view Fig. l5, 1n which the movements ot the parts are made clear by eliminating the eontusion arising 'from their shape, form and contigui-ation. In this 'view ai represents a line centrally through the gear wheel and pinionv 36, the' pivotal center 30 of the vibrating plate 2S), and through the'pivotal center 33 of the guide piece 232 upon the vibrating plate 29, `when the said vibrating plate is in a position intermediate the eXtreme pointsof its throw in either direction. T he pivotal center 30 is shown bya dot or point, as is also the pivotal center--B. The straight heavy line between the points 3() and 33 is employed to represeiit the vibrating plate or member 2f), the broken lines .fr o representing the eX- treme limit ot throw ot the said vibrating plate or member 25.) about its'pivotal reenter il() under the intluenee of thel vibratory (fain o and d designate the positions of the point 33 at such times. 'lfhe guide piece is represented by a single straight line 32, which is shown as out ol line with the line 29, having been moved to the left hand side thereotl around its pivotal axis, and the sector portion thereof is represented by an are e constituting the pitch line of said sector.

The line e will be seen to' engage at onepoint the line f, which represents the pitch line ot the gear wheel 35. As the vibrating plate or member 2.() swings to a position represented by the line a., the guide piece 32 will assume a position represented by the broken line g, the arc e rolling upon the circumferenee f until it assumes a position 7L; While, when the vibrating plate or member 29 moves to a position represented bythe line b, the guide piece 32 will move to a position represented by the broken line z', the arc e at this time assuming the position The slide 42 is shown with its center upon a point along the line 32, and it will be apparent that, as the vibrating member vibrates backward and forward between the lines a and b', the point le will vibrate backward and 't'orward between the points Z and m along the broken lines f/ and i.

Besides assuming that the line represents the (central linel of theparts, as above stated, the said line may also be taken to represent the central line of the button hole, beeause all vibratoryn'iovenuents of the slide At in a direetiouat right. angles to the line a' f are transmitted-proportionately to the needle bar in positions having the same proportionate relative positions to the central line o'l the button hole. The movement ofthe point between the two points Z and 'no will then represent side stitches upon one side ot the ventral line a' ai ot the button hole.

ly operation of the gear wheel 15 under :u :tuation ot the eain lt), the guide piece 532 is shitted from one side to the other ot the y centra l linel ai .1.3, rlhe broken line n. indieates the position of the central line ot the guide lpiece 32 when thrown into a position upon the other side ol" the ventral line a: a; to prof duce'the other set. ot' side st itehes. 'lhe point o designates the position of the guide piece 42 upon the line n corresponding to the po,-

'sitio'n upon the line 32, while the points p and g reln'esent. the range of movement of the point o during the vibration of the plate or member 25). rllie distance between p and q will then represent the side stitches upon the opposite side of the button hole to the side stitches represented by the points 7, and m. The direction ol feed oit' the work plate being in the longitudinal line ot' the buttonv hole represented by the line .fr a2, side stitches will be produeed t'roin end to end of the button hole as the work is moved in one direetion or the other, the shilt oil5 the guide piece 'from one side. ot' the eentral line to the other being etleeted while the work is in a position with the end ot the button hole at a/point in line, with the' needle bar. lVhen either end of the button hole has been reached, bai-ring stitches may be made, and 'li'or this purpose vthe eam t) will operate to throwthe slide 42 down to a position with its central point substantially (7o-incident representingl barring stitches equidistantA upon opposite sides oi the central line w' ac. Such barriiig stitches may be conveniently formed at both ends of the button hole, and for this reason the cam 9 is provided with twoprojections oppositely disposed,a single revolution ot' the said Cam and ratchet to which it is secured, constituting a movement sufficient to complete one button hole.

It will be noted that, when the slide 42 is over the axial center 3?, movement of the guide piece 32 upon the vibrating plate, being a movement around the axis 33, willimpart no movement to the slide 42, the only movement imparted thereto being the regular vibrating movement of the plate 29 under the iiifiuenee of the cam 28. vFor this reason the eain 1l may have very gradual change portions, the entire time occupied in barring being, it desired, occupied in moving the guide piece 32 from its position upon one side of the line to its position upon the other. This arrangement` enables the machine to be run at a high rate of Speed and saves wear and tear on the parts due to shock arising from inertia and'inoinentum.

It. will also be seen that the machine may be very easily adapted for the purpose of nialting round end button holes, if desired, instead ol square end lnitton holes.

ln Fig. 3 of the drawings the parts aie shown in the position which they assume when stitching is being carried out on (say) the lel'thand side of the button hole, such as sol iis

stitches.

is represented by the space between the points l and 1nrv of the diagram Fig, 15.

ln Fig. l) the slide if.) is shown as moved down to the position in the ,Q'uide piece t'or transmitting' movements suitable for Yhen in this position barring' movements are made such as is represented on the diagram between points r' and rl.

in Fie'. lili, the guide is shown as thrown over to the opposite position. in which position stitching' will take place ou (say) the right hand side of the button hole, the same parts' shown in Fig. ll beinp'shown in Fig. 13 in the tirstdescribed position, such position corres]lendingl to the position in which the partis aie shown in Fig'. 3. Earring may take place while the parts' are in the posi' tion shown either in Fig'. 12E' or in Fig. li, for, as above set forth, the relative position of the guide upon the vibratingV plate or member does not. materially.attectitlie movement transmitted when the slide has been moved down 'to barring position,

F or the purpose of making round end button holes it is only necessary to prevent the cam 9 from operating to shittthe slide down to its barring' position. This maybe effected in alnumber of ways, but lor purposes of simplicity of illustration, have shown the arm 54 as secured tothe shaft 55 by means' of a set screw Il?, by unscrewing which the said arm will be released l'rom itsl engagement with the shaft, and l have provided tlvy arm 5l with a pin 5o which by engagement with a stationary part of the machine may be employed to hold the said arm in its propel' position to correctly locate the slide l2. lilith the slide l2 having' no movement along;l the guidetoward and away from its axial center the cam ll, which controls the lield ot the over-scathing' stitchi ing; operalions upon opposite sides ot' the button hole. will carry the said f'eld of move: ments gradually, from one side to the other at the end ot the button liole.inaltin;i' a round4 end button hole`r as desired` and other shaped button holes may, ol course. be made in accordance with the shape ol' the cam employed.

Mounted to slide transversely in a {roow in the plate 2T is a bar 5i), said bar provided with z stud (it) upon which is mounted a block (il. This bloei; is received within a slotted 'portion ol' the plate or member tl, and, by reason of this connection, said bar 5t) is caused to reciprocate :it all timesl the said plate or member 2f) is vibrated. Near one end the bar is provided `with an uprisingr stud (52, which is arranged eoutiggjuons l to, andis adapted-at certain times to engage with. a notch (lil in a bar (3leoinprising a portion of the cutter cont rolling' mechanism. This bar is pivoted at (SI2 to a lezer E313., said lever in turn pivoirll at lli' to a stationary point on the plattl barring toward a tripping latch Tt).

connected with the bar tt, near its pivotal pointttltendstopullthebarol-longitudinally in one direction and to roch the lever (SG upon its pivotal center (3T, and another coil spring' tt) attached to the bar (it near its opposite end tends to draw the bar laterally TheI tripping latch Tt) ordinarily holds the bar (il in such aposition as to prevent the notch (Sil thereof 'from engaging' the stud (32 upon the transverse bar .'fi. moved to its tripping position, as it may be by operation or' a cam piece Tl secured upon the rate-het wheel W said cam piece acting through a lever T2 and a vertical rod 73, the.

bar tS-l willbe permitted to move inward under tension of the springy (it) so as to be engaged by the stud @when the same is opposite the notch (33. Then this happens, the bar (it, upon the next reciprocating-movement of the constantly reciprocating transverse bar 59, will be carried b; ck therewith, such n'iovement of the har (54- having the eli'ect of rocking the lever Gti upon its piyF otal center 6T. The lever (36 is pivotally connected .to a cutter' controllingc bar 83, the cutter being caused to operate upon the nent successive downward movement of the needle bar after the said bar has been tripped, and the tripping thereof is produced by the aforesaid movement of the lever Gt when the saine is rocked upon its pivotal center (31' by the movement of the bar (il.

i will not describe the. operation of the. euttin` mechanism with any further particularity herein, because no claim is made to the saineipcr se, the mechanism being substantially such as is shown in Patent No. 402,61() to Osterhout Ss Hailenbeck, dated May 7th, 188i), for cutting device for buttonhole sewing' machines.

The arm 5l is shown as provided with a cam plate 7l, which engages with the lower end ot the central stud 75 of a tension device Tt, whenever the arm 54 is moved to a barring position. This will release the tension o1" the thread at such times as barring' .stitches are being made. have also shown means in a lever 7T, adapted to be actuated b v a projection To upon the stop motion arm Til. l'or releasing the tension atV the moment the machine is' stopped. This stop motion, which may be oi' any suitable kind such as are well l nown and are on the market today, is tripped by means otl a pin Si) propm or projection being arranged to strike a. lever Si, said lever controlling the position ot a rod S2 eom'iected with the said stop motion arm 79.

While the particular 't'orm of' sto1')motioh if; not essential iu the present application, a detailed description oi the forni herein illuS trated ma v be t'ound in lf. Letters Patent.,

` ieee..

jet-tinge trom the cam member l2, the said `When this tripping' latch is What I claim ist A 'imparting relative jogging movements between the work support and the needle bar comprising a plate or member arranged to t vibrate about an axis, means :tor imparting a constant .and uniform vibration thereto, movement transmitting means including a slide .and a guide piece therefor supported uponsaid plate or member, means for moving the slide upon the guide piece toward and away from the axis of the plate or member so as to vary the amplitude of movements transmitted thereby, and means for moving the guide piece llaterally with respect to the plate or member` to vary the field of the shorter vibrating movements transmitted by the slide carried thereby, the relative movements permitted between the guide piece and. the plate or member being such as not to affect the field of movements transmitted by the slide when in a position to transmit the said movements of greater amplitude.

A sewing machine including means for imparting relative jogging or lateral movements between the Work and the needle bar in the formation of over-seaming stitches, said 'means eomprisinga vibrating plate or member, a guide piece pivotally carried upon the plate or member,- and movement transmitting means including -a slide mounted upon said guide piece,-means for moving the guide With respect to the vibrating plate or member to change the field of lateral or jogging movements transmitted by the guide thereon Without necessarily changing the amplitude of movement transmitted thereby, and means :t'or moving said slide upon said `guide to vary the amplitude of the lateral or i jogging movements transmitted thereby, the last said movement being to a point substantially neutral with respect to the movement of theguide piece upon the member carrying it, so that relative movements between the guide piece and the, member carrying it dui'- iiig the transmission 4of the jogging movements of said greater amplitude will not af.- i'ect or vary the iield or' movement of said lateral or jogging movements oi greater amplitude.

A sewing machine including means tor imparting relative jogging movements between the work support and the needle bar comprising a plate or member arranged to vibrate about an axis, a guide piece pivoted upon said plate or member, the axis of said pivot being eccentric of the axis of vibration of the plate or member, movement transmitting means for imparting said relative jogging movements, including a slide mounted upon said-guide, lmeans for moving said slide. upon said guide toward and away trom the pivotal axis ot the said plate. or member to var)l the amplitiule of jogging l means for rocking the guideway upon its pivotal axis with respect to the plate or member upon which it is mounted to vary j t-he lield ot movements transmitted by the slide mounted thereon.

4. A sewing machine including means for tween the work support and the needle bar comprising a plate or member arranged to vibrate about an axis, means for imparting a` constant range or vibration to said plate or member about its axis, a guide piece pivoted upon said plate or member, the axis of said pivot being eccentric of the axis of vibration oft' the plate or member, movement transn'iitting means for imparting said relative jogging movements, including a slide ing said slide upon said' guide toward and away from the axis of tne said plate or meinber to vary the amplitude of jogging movements transmitted by the slide, gear teeth upon said guide piece arranged concentrically of the axis thereof, and with their pitch line intersecting the axis of the plateor member,

o t said guide piece, the pitch line ot the teeth otsaid gear alsol iiitei'secting the pivotal axis of said vibrating plate or member.

5. In a sewing machine, the combination with stitch forming mechanism including a vertically reciprocating and laterally vibrating needle bar, of means for transmitting the vibratory movements to the needle bar comprising a pivoted member, means for transmitting a constant range of vibration thereto, a guide piece laterally adjustable thereon which partakes of the movement of the said vibrating member, an element connecting the said guide piece with the sziid needle bar, means for shitting the position ot' the guide without thereby shifting the position oi the said connecting element with respect to the said pivoted member, and means tor moving the connecting element along the guide piece toward and away from the axis of the pivotcd member.

(.k A sewing machine including means tor imparting relative jogging movements besaid means comprising a pivoted plate or member, means for imparting a constant range of vibration to said plate oi member about its pivotal axis, a guide piece secured including a slide upon said guide piece, said slide arranged to be moved upon said guide piece toward and away Jfrom the pivotal ccnter ot tlie plate or member, whereby the range ot lateral movemei'its transmitted by the slide will be varied. and means vtor latorally adjusting thc position o'll tlie guide imparting relative jogging movements bemounted upon said guide, means for mov-- and a gear having teeth engaging theteeth,

piece upon-the pivoted vibrating member tween the worli support and the needle bar,`

upon the plate or member to one side of its. pivotal axis, movement transmitting -means piece' and slide with respect to the plate or member to vary vthe tield ot' the jogging movementsy transmitted by the slide.

7. A sewing mael'iine including means tor imparting relative liogging movements between the work support and the needle bar, said means coi'nprising a pivoted plate or member, means tor imparting a constant range ot' vibration to said plattI or mem ber about its pivotal axis, a guide piet-e pivoted upon said member at' a. point ccwnnric of the pivotal axis ot' said plate or member, niovement transmitting mean.` including a slide upon said guide piece, means Ytor moving said slide backward and forward along the guide piece in a direction from one said pivotal center to the other and vice versa, the range otlateral movements transmitted by the slide being thereby varied, and means for adjusting thc guide with respect to the plate or member7 about the pivotal axis of said guide, thereby laterally adjusting the field of movements tansmitted by the said slide.

8. A sewing machine including means for imparting relative jogging movements bctween the work support and the needle bar, said means ,comprising a pivoted plate or member, a cam for imparting a constant range of vibration thereto about its pivotal axis, a guide piece pivotally secured upon said plate or member to one side of the pivotal axis thereof, a slide upon said guide piece for transmitting the said relative jogging movements, a cam, and connections therefrom to said slide to move same along said guide piece to vary the amplitude ot' jogging movements transmitted thereby, and a, cam and connections therefrom to said guide piece for varying the position ot said guide piece about its pivotal axis upon the plate or member to vary the tield of the said relative jogging movements transmitted by the slide.

9. In a buttonhole sewing machinej the combination .with stitch forming` mechanism including a vertically reciprocating and lat-- e ally vibrating needle bar, ot a vibratingl plate or member tor imparting said lateral vibratil'ig movements to the needle bar, a pivotal support therefor which stationary during the. normal stitching operation tor the production ot' a con'iplete buttonhole. meansI for imparting a constantl range ol" vibration tosaid plate or membe* about its pivotal axis, a guide piece upon the plate or member arranged to partake of the movements thereof, a slide upon said guide piece, moans connecting said slide with said needle bar, means tor moving said slide upon said guide piece in a direction towardand away trom the pivotal center ot the ysaid 'plate or member wberelrv the amplitude otl latrral movements transmitted by tlnl slide will be varied between a degree sutiicicnt to produce side stitches and a degree sutticient to produce end barring stitches, and means for laterally adjusting the position ot the guide piece with respect to the said plate or member while thcslide in a position wherein movements for pii'l'iducing barring stitches are being transmitted. without thereby laterally shitting the position olf the said slide with respect to the vibrating plate or member.

lt). in a button hole sewing machine, the combination with stitch forming mechanism including a vertically7 reciprocating and laterally vibrating needle bar, `of a vibrating` plate or member tor imparting said lateral vibrating movements to the needle bar,`

means tor imparting a constant range ot' vi bration to said plate or member about its pivotal axis.- a guide piece pivotallv mounted upon said member to one side ot the pivotal axis thereof, said guide piece arranged normally to partake ot the movements ot' said plate or member. a slide upon said guide piece. means connecting' the needle bar `with said slide. means for moving the slide backward and forward between the pivotal ccnt'er ot the guide piece and the pivotal center ot' thc plate or member to vary the amplitude ot lateral movements transmitted by the slide, and means for adjusting the position of th'e guide piece upon the plate or member about the pivotal axis of thc said guide piece to vary the field ot' movements imparted bv the slide carried thereby when the slide is at any point between the two said pivotal axes. A

ll. In a button hole sewing machine the combination with stitch forming mechanism including a vertically recipr ^zcating and laterally vibrating needle bar. ot a vibrating.

plate or member for imparting said lateral vibrating movements to the needle ar. means for imparting a constant rauwe ot' vibration to said plate or membe about its pivotal ax. i. a guide piece pivotallv mounted upon said member to one side ot' the pivotal axis thcrcot'. said guide piece arranged normalbY to parlato: ot the movementsy :it `said plate or member. a slide upon said guide piece. meansconncctingthcneedle bar with said slide, means t'or moving the slide backward and lorward between thc pivotal center ot the guide piece and the pivotal center otE the plate or member to var v tln` :unplitude ol: lateral lnovtanents transmitted by the slide. and means tor adjusting the position oi' the guide piece upon the plate or member about the pivotal axisA ot' the said guide piece to var v the tield oll movcmcnt-s` imparted by the slide carried thcrebjr when tln` slide is at any point between the two .sait pivotal axes. said tast named meanscomprisinggear teeth carried bv the guide. and a gear having teeth intcrmcsliing tlnrcvv ith. the pitch iinns nt `aid i 'te teeth being substantially coincident at one point with the axis of the vibrating ,plate or member.

12. In a button hole sewing machine, the

said plate or member, said guide piece provided With gear teeth 34, a gear vwheel 35 in mesh With said gear teeth 34, means for imparting rotative movement to said gear Wheel in the operation of the machine, a

slide 42 in said guide piece, means for moving said slide along said guideway in the operation of the machine, and connecting means between the said guide piece 42 and the needle bar whereby the vibratingmovements imparted to said slide by said cam will be imparted to said'needle bar to produce the laterally vibrating orjegging movements thereof.

13. In a button hole sewing machine, the combination with stitch forming mechanism including a vertically reciprocating and laterally vibrating needle bar of a plate or member arranged to vibrate/about a vertical axis, a horizontal guide piece vertically pivoted upon said plate or men'iber, a slide in said guidepiece, means connecting said slide laterally with said needle bar, a cam arranged to rotate about a vertical axis, a vertical shaft having an arm at one end engaglng said cam, and at the other end havlng an arm connected With said slide, Whereby the operation of said cam Will, through the intermediation of said vertical shaft, move said slide along said guide, another cam secured to rotate with the lirst said caln, a vertical shaft having an arm engaging said last named cam, and provided ivith means alt its other end engaging said guide piece, whereby the cam, upon its movement, will, through the intermediation of said last named vertical shaft, move said guide piece about its axis upon the member upon which it is vibrated.

14. A sewing machine including means for imparting relative jogging movements between the work support and the needle bar comprising a plate or member' arranged to vibrate about an axis, movement transmitting means including a slide supported upon said plate or member, means for moving the slide upon the plate or member toward and away from the axis vthereof so as vtoV producev short jogging movements suitable for side stitching, an ogging movements of greater amplitude suitable for barring stitches, means for laterally moving the slide With respect to the plate or member to vary the field or position oi. the said short jogging movements suitable for side stitching, and means for disconnecting the means for moving the slide along the guide from operative engagement, at will, and for holding the slide in substantially one position in the guide, substantially as speciiied.

15. A button-hole sewing machine including means for imparting relative jogging movements between the work support and needle bar for the. production ot overseaming side stitches, mechanism for increasing the amplitude of the jogging movements for the production of barring stitches, field changing mechanism for shifting the fieldv ot' operation of the side stitches, and means whereby the same is operated during the formation of ctmsecutive barring stitches Without. thereby causing any cfnresponding change in the ptisition of the said barring stitches.

1G. A buttonholesewing machine including means for imparting relative jogging movei-nents between the Werl: support and needle bar. for the production of overseaming side stitches, eld changing mechanism for shifting the lield of operation of the si'de stitches, means for increasing the amplitude 'of the said jogging movements to produce sets of end barring stitches, and means for operating the tield changing mechanism 'continuously during the production of substantially all ot a set' ot lsaid end barring stitches, to shift the field of operation of the sideI stitches from one side of the button'- hole to the other, without therebyy producing anyv corresponding lateral changes in the position of the said end barring stitches.

JAMES T. HOGAN.

Witnesses:

l). How/nn) I'lAvwooo, LYMAN S. ANn1ucws,Jr.