US1005173A - Ruffling and stitching machine. - Google Patents

Description

A. H. DE VOE.

RUFFLING AND STITGHING MACHINE.

11 21110111011 FILED NOV. 9, 1909.

1,005,173. Patented Oct. 10,1911.

2 SHEETE-SHBET 1.

WITNESSES:

39 56 ATTORNEY A. H. DE VOE.

RUPFLING AND STITGHING MACHINE. APPLICATION FILED NOV. 9, 1909. 1,005, 1 73. Patented 001;. 10, 1911'.

2 SHEETS-SHEET 2.

WITNESSES:

INVENTOR UNITED STATES PATENT OFFICE.

ALBERT I-I. DE VOE, OF ELIZABETH, NEW JERSEY, ASS IGNOR TO THE SINGER MANU- FAOTURING COMPANY, A CORPORATION OF NEW JERSEY.-

RUFFLING' AND STITCHING MACHINE.

To all whom it may concern:

Be it known that I, ALBERT H. DE Von, a citizen of the United States, residing at Elizabeth, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Ruflling and titching Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to an improvement in that class of rufliing mechanism forming the subject of my pending application Serial No. 461,697, filed November 9, 1908; and it has for its object to provide a simpler and more easily manipulated mechanism for performing the intermittent rufiiing operations while 'the stitching proceeds which are required in the manufacture of certain kinds of garments, the ruflling mechanism being thrown into and out of operation by automatically actuated means.

The invention consists in certain constructive features herein shown and described and pointed out in the appended claims.

The present improvements are shown embodied in the well known Singer rotary hook sewing machine represented, for instance in the United States patents of M. l-lemleb, No. 809,566, of January 9, 1906, and No. 809,945, of January 16, 1906.

In. the accompanying drawings, Figure 1 is a front side elevation of the machine with the frame in sect-ion. Fig. 2 is a front end view of the machine with the face plate of the bracketarm removed. Fig. 3 is a trans verse sectional elevation of the rearward portion of the machine, showing a portion of the ruflier actuating mechanism and the controlling devices therefor. Fig. 4c is a perspective View, upon a larger scale, of the ruifler-actuating and controlling devices therefor and Fig. 5 a similar view of a detail thereof. Fig. 6 is a perspective view of the rufiier blade and its carrier, and Fig. 7 a similar view of the ruflier blade, its carrier and actuating means, and parts associated therewith. Fig. 8 is a perspective view, partly in section, of a portion of the controlling device of the ru'liier-actuating mechanism, and Fig. 9 a detail perspective view, also partly in. section, of a part of the milleractuating mechanism. Fig. 10 is a detail sectional plan view representing the guidemember for the vibrating lever carrying the ruttling lever.

The frame is constructed with the usual Specification of Letters Patent.

Application filed November 9, 1909.

Patented Oct. 10, 1911.

Serial No. 526,963.

bed-plate l and bracket-arm formed with the hollow standard 2 and overhanging member 3 with head 4 in which is journaled the main-shaft 5 carrying at its rearward end the balance wheel 6. The main-shaft carries at its front end a crank-plate 7 provided with the crank-pin 8 embraced by the upper end of the pitman 9 connected at its opposite end with a pin 10 at the upper end of the needle-bar 11 carrying the needle 12 which cooperates with the rotary hook 13 fixed upon the forward end of the shaft 14 connected with the main-shaft by means of the perforated belt 15 and the pinwheels 16 and 17 upon their respective shafts.

lVithin the head 4 is mounted the presserbar 18 to the lower end of which is secured by means of the fastening screw 19 the shank 20 of the presser-foot 21 pivotally connected thereto. The presser-bar has secured to its upper end by means of the fastening screw 22 the collar 23 attached to the lower end of the rod 2 1 whose upper end is mounted in the adjustable bushing 25 between the lower end of which and the collar 23 is in terposed the pressure spring 26 by means of which through the presser-bar, the presserfoot is pressed upon the work.

The feeding mechanism comprises the feed-do 27 extendin throu h the usual aperture in the throat-plate 28 and fixed upon the feed-bar 29 connected with the feed-rocker 30 and the lifting arm 31 as shown and described in said Patent No. 809,945.

The ruifling member comprises the blade 32 having the usual serrated operative extremity notched at- 33 to embrace the needlepath and secured by means of rivets 34. to the flattened end 35 of the round rod 36 constituting the blade-holder. The blade holding rod 36 is loosely fitted within a transverse aperture in the head 37 of a pin 38 passing through the loose sleeve 39 and through an aperture in the lower end of the vibrating lever 41 and provided upon its threaded opposite end with the clamp-nut 10. The adjacent end of the collar 39 is provided, as indicated in Fig. 6, with a transverse groove fitted to the exterior of the rod By loosening the clamp-nut 4-0, the rod 36 may be shifted endwise to adjust the distance of the operative edge of the ruffler-blade 32 from the needle-path, or it may be turned slightly to insure the parallelism of the serrated edge of the ruffling blade with the throat-plate, or the pin 38 may be turned to change the position of the rufliing blade in relation to the throat-plate. The holding means for the rod 36 thus constitutes a carrier upon which the same is capable of universal adjustment.

The vibrating lever 41 has at its upper end the laterally projecting stud 42 journaled in and supported by a boss 43 of the The outer end of the supporting lever 49 is notched in its lower side to form a finger 52 which rests upona roller-stud 53 carried bya loose collarf54 fitted upon the presser-bar 18 and provided .witha rear- "wardly extending lug 55 adapted for enportion of'a flat spring 60 whose rearward end is engaged by the point of the adjust clamp-screw I 63.

gagement by the :cam' portion 5610f the lifting lever 57 fulcrumed upon the screw-pin 58. The lever 49 has spaced below its lower edge a lug 59 -upon which rests the central ing screw 61 "passing through a split lug 62 extending forwardly fronr the hub 50 of the supporting lever and provided with a The opposite end of the spring 60 extends beneath the roller-stud 53 whichis' thus =confined between'fixed and yielding shoulders of the lever 49. The raising of the Presser-bar by actuating the lever 57 serves to positively lift the rufilercarrying lever 41, through the intermediate connections, but the descent of 'the presserbar merely applies through the stud 63 and spring 60' a yielding downward pressure 1' uponthe lever 41, the rufliing member 32 rigidly secured to such lever'by means before described bei-ngth'ns yieldingly pressed upon the work by the spring 60 which is thus disposed materially above the work so as not to obstruct the view of the operator in performing the =rufiiing and stitching operations for-which the -machine is de signed. -As will be observed, the turning of the adjusting screw 61 varies the tension -of'the spring-.60 to adjustthe pressure of the rutili'ng-blade 32 upon the work.

Upon the forward-portion of the rulfier rock-shaft 51 is-v fixed by means of set screws 64 thehub of a crank-arm 65 pivotally connected to one endof a link 66 whose opposite end is connected with the vibrating lever 41' intermediate its supporting stud 42 and the rufiiing member 32. The rufller rock-shaft has fixed upon its opposite-end pin is fixed the guide-block 72. Fixed upon the pivotal stud 73 journaled in the standard 2 of the bracket-arm is a rocking member 74 formed with a guideway 75 in radial relation-to the stud 73 and adapted to embrace the slide-block 71. The rocking member 74 carries a lateral stud 76 embraced by one end of an eccentric-rod 77 whose op posite end is formed with a strap 78 which embraces the actuating eccentric 79 upon the main-shaft 5, which imparts through said connection uniform oscillatory movements to the member 74 which are communicated through the slide-blocks 69 and 71 and their supporting pin 70 to the crank arm 67 and thence through the rock-shaft 51,'crank arm 65 and link 66 to the rufllercarrying lever 41 which communicates toand-fro operative movements to the rufliing member 32. In order to move the supporting stud 70 to and from alinement with the fulcrum-stud 73 of the rocking member 74,

shifting mechanism is provided which comprises a lever 80 formed in its outer end with a yoke 81 embracing the guide-block 72 and fixed by means of the transverse pin 82 upon the rocking pin 83 disposed parallel with the main-shaft and mounted in suitable bearings in the standard 2 of the bracket-arm. The pin 83 has fitted upon its reduced rectangular forward end a depending arm 84 secured in position by means of the fastening screw 85 and. pro vided. with a longitudinal slot 86 entered by the roller-stud 87 which is mounted upon the bushing 88 between the flange 89 thereof and a washer 90 of the coupling pin 91 having upon its outer threaded end the clamp-nut 92 and formed at its opposite end with a rectangular head 93 fitted within the undercut slot 94 of a swinging lever 95 which is mounted upon the fixed fulcrum-pin 96 journaled in the base of the standard 2 and provided with a thrust-collar 97. The lever 95 is provided with an upwardly extending arm 98 carrying a studscrew 99 upon the reduced extremity of which is mounted the anti-friction roller 1'00, and has an angularly disposed extension 101 terminating in a segment 102 concentric with the stud 99 and formed with graduations, as indicated in Figs. 1 and 4. Pivotally mounted upon a collar 99 of the stud 99 is a swinging angle-lever formed with a depending arm 103 having a longitudinal slot 104 embracing the flange 89 of the bushing 88 surrounding the coupling pin 91, and having an angularly disposed pointer-arm 105 with a lateral finger 106 overlying the scale of the graduated segment 102, and adapted to indicate the position of the coupling pin 91 in relation to the fulcrum-pin 96.

The roller-stud 99 100 enters a cam-groove 107 of the cam-wheel 108 journaled loosely upon the pin 83 intermediate the hub 80 of the arm 80 and the arm 84. Loosely mounted upon the hub of the cam-wheel is a rock-lever having an arm 109 having an angular extension 110 provided with a boss .111 entering a radial slot 112 of the rocking member 74, and a second arm 113 provided with a lateral lug 114. Pivoted upon the arm 109 by means of the screw-pin 115 is the segmental-shaped clutch-lever 116 provided upon one face with the spaced segmental jaws 117 and 118 adapted to embrace the flange 119 of the camwheel 108, the jaw 117 having a lateral lug 120 between which and the lug 114 of the lever 113 is interposed the spring 121. The oscillation of the rocker upon its fulcrum-pin 73 thus serves to impart a step-by-step rotary movement to the cam wheel 108 in a manner well known.

The lever-arm 113 carries an adjustable stop-pin 122 adapted to engage a finger 123 fixed upon the rocking pin 124 journaled in the lateral bearing boss 125 of the clutchlever 116 and carrying upon its opposite end the tappet-arm 126.

Mounted upon the collar 99 of the stud 99 is the bent tripping arm 127 provided intermediate its ends with a lateral stud 128 which carries the roller 129 adapted to engage the tappet-arm 126, the tripping arm having a flat extremity 130 adapted to engage a r0ller-stud 131 mounted upon an upturned ear 132 of a plate 133 secured upon the rock-lever 134 which is fulcrumed by means of the screw-stud 135 upon the bedplate 1 and has a rearwardly extending arm lying in the path of movement of the upwardly extending arm 136 of a bellcranklever fulcrumed upon a pin 137 beneath the bed-plate and having a lateral arm 138 adapted to be secured by suitable means to an actuating knee-lever or treadle-plate. The lever 134 has an upturned thumb-piece 134*, and its adjacent end is housed within a laterally slotted guide-block 139 secured to the bed-plate and having a spring 140 for yieldingly holding the lever in operative position with the roller-stud 131 in the path of movement of the tripping lever 127 as the latter follows the vibratory movements of the swinging lever 95 and the arm 98 whose roller-stud is engaged by the cam-groove 107. The stud 99 carries a second anti-friction roller 141 which enters the longitudinal slot 142 formed in the extremity of one arm 143 of a rock-lever fulcrumed upon the screw-stud 144 and having an arm 145 similarly slotted to embrace a lateral stud 146 carried by the depending arm 147 of a tubular rock-shaft or sleeve 148 journaled upon the rufiier rock-shaft 51 intermediate the crank- arms 65 and 67, said tubular rockshaft having fixed upon its opposite end adjacent the arm 65 the laterally extending arm 149 carrying the stud 150 which enters the laterally extending slot 45 in the rocker 44 affording a support for the vibrating rutlling lever 41.

When the parts are in initial position, the

roller-stud 100 is in the outer port-ion 107 of the cam-groove 107, and the upper end of the tripping lever 127 is in its extreme forward position with the intermediate rollerstud 129 in forcible engagement with the tappet-arm 126, the roller-stud 141 carried by the lever 134 sustaining the thrust of the extremity 130 of the tripping lever, in order that the engagement of such parts shall rock the pin 124 and separate the lugs 114 and 120 of the clutch device to bring the jaws 117 118 to concentric and ineffective relation with the flange 119 of the cam-wheel 108 to interrupt the movement of the cam. In this position of the parts, the connection of the arm 84 upon the rocking stud 83 with the swinging lever 95 causes the yoked arm 80 to carry the pin into axial relation with the fulcrum-stud 73 of the rocking member 74, whereby the action of the eccentric 7 9 upon the rufiler rock-shaft 51 is rendered inelfective and the ruffiing action is interrupted. In this initial position of the mechanism, the rock-lever 143 145 so holds the tubular rock-shaft 148 that the engagement of the stud 150 of its arm 149 with the rocker 44 turns the latter upon its supporting fulcrum-stud 47 and thus lifts the supporting pin 42 of the swinging lever 41, which latter moves upwardly and circularly upon the link 66 as a radius, so as to not only lift the ruflling blade 32 but to retract it from advance position in which it would otherwise be left by its actuating mechanism. The lateral shifting of the stop-lever 134 by manual actuation of the thumb-piece 134 or by the rocking of the bellcrank-lever 136 138, causes the release of the tripping lever 127 and the consequent disengagement of its stud 129 with the tappet-arm 126 and consequent resumption of operative relation between the clutch-lever 116 and the camwheel 108. The rotation of the cam causes the inward travel of the roller-stud 100 in the cam-groove 107 where it is retained for a rufliing period, the slide-blocks 69 and 71 and their engaging pin 70 being moved outwardly from axial relation with the fulcrum-pin 73, as represented in Fig. 3, whereby operative movements are imparted to the ruflier rock-shaft 51; while the simultaneous rocking of the lever 143 145 causes the corresponding movement of the tubular rockshaft 148 and the lowering of the supporting pin 1 12 of the vibrating lever 1411 to operative position to bring the ruflling blade again into operative relation with the work.

As will be observed, by loosening the clamp-nut 92, the coupling pin 91 may be adjusted in the slot 94 of the swinging arm 95 radially in relation to the fulcrum-pin 96 so as to change the relative movement of the yokelever in relation to that of the rocking lever in order to correspondingly vary the length of throw of the ruflling member 32.

To effectively guide and steady the vibrating ruffler-carrying lever 11 adjacent the rufliing member, a guide-block 151 is formed with a slot 152 fitted to the reduced lower portion of said lever, and is provided with a lateral pin 153, preferably cylindrical in form, passing through a transverse aperture in the shank portion 20 of the presser-foot in which it is secured for both endwise and circular adjustment by means of the set-screw 154. By properly adjusting this guide-member, the position of the ruffling member may be accurately controlled and the lever 11 steadied in its vibratory movements.

As herein shown, the machine is provided with a fold-guide 155 similar to that of my application Serial No. 461,697, but the same forms no part of the present improvement.

Having thus set forth the nature of the invention, what I claim herein is A 1; In a sewing machine, a rufiiing mechanism comprising a rocking member mounted upon a fixed fulcrum and provided with a slideway, actuating means therefor, a ruffler rock-shaft, an arm mounted thereon provided with a slideway overlying and spaced from that of said rocking member, a supporting pin, two slide-blocks mounted thereon and entering respectively said slideways, a guide-block also mounted upon said pin intermediate said slide-blocks, a rocking stud, an arm fixed thereon and formed with a yoke embracing said guide-block and movable toward and from the fulcrum of said rocking member, means including a cam loosely mounted on said rocking stud and means controlled thereby for vibrating said arm, a ruiiling member, and an operative connection between said rufiiing member and rufHer rock-shaft.

2. In a sewing machine, a rufliing mechanism comprising a rocking member mounted upon a fixed fulcrum and provided with a slideway, actuating means therefor, a ruffier rock-shaft, an arm mounted thereon provided with a slideway overlying and spaced from that of said rocking member, a supporting pin, two slide-blocks mounted thereon and entering respectively said slideways, a guide-block also mounted upon said pin intermediate said slide-blocks, a rocking stud, an arm fixed thereon and formed with a yoke embracing said guide-block and movable toward and from the fulcrum of said rocking member, a cam mounted upon said rocking stud and provided with means for imparting thereto step-by-step rotary movements, a follower for said cam, a swinging lever mounted upon a fixed fulcrum and carrying said follower, a second arm fixed upon said rocking stud and adjustably connected with said swinging arm, a ruflling member, and an operative connection between said rufliing member and rufiier rockshaft.

3. In a sewing machine, a rufliing mechanism comprising a rocking member mounted upon a fixed fulcrum and provided with a slideway, actuating means therefor, a rufilcr rock-shaft, an arm mounted thereon provided with a slideway overlying and spaced from that of said rocking member, a supporting pin, two slide-blocks mounted thereon and entering respectively said slideways, a guide-block also mounted upon said pin intermediate said slide-blocks, a rocking stud, an arm fixed thereon and formed with a yoke embracing said guide-block and movable toward and from the fulcrum of said rocking member, a cam-wheel having a camgroove in one face and loosely mounted upon said stud, means for imparting stepby-step rotary movements thereto, a swinging lever mounted upon a fixed fulcrum and provided with a longitudinal slot, a rollerstud carried by said swinging lever and entering said cam-groove, a second arm fixed upon said rocking stud and formed with a longitudinal slot, a coupling pin entering the longitudinal slots of the last-named arm and the. swinging lever and adjustably secured to one of said members, a rufflingmemher, and an operative connection between said ruiiiing member and rutlier rock-shaft.

4. In a sewing machine, a rufiiing mechanism comprising a rocking member mounted upon a fixed fulcrum and provided with a slideway, actuating means therefor, a ruffler rock-shaft, an arm mounted thereon provided with a slideway overlying and spaced from that of said rocking member, a supporting pin, two slide-blocks mounted there on and entering respectively said slideways, a guide-block also mounted upon said pin intermediate said slide -blocks, a rocking stud, an arm fixed thereon and formed with a yoke embracing said guide-block and movable toward and from the fulcrum of said rocking member, a cam-wheel having a camgroove in one face and loosely mounted upon said stud, means for imparting step-by-step ment, a stud carried by said swinging lever in concentric relation with its graduated segment and carrying a roller entering said cam-groove, a second arm fixed upon said rocking stud and formed with a longitudinal slot, a coupling pin entering the longitudinal slots of the last named arm and the swinging lever and adjustably secured to'one of said members, a swinging arm pivotally mounted upon the roller-carrying stud and formed with a longitudinal slot entered by the said coupling pin and provided with a pointer arm overlying said graduated segment, a ruffiing member, and an operative connection between said rutliing member and ruffler rock-shaft.

5. In a sewing machine, the combination with a ruflling member, actuating mechanism for imparting operative movements thereto, controlling means whereby said actuating means are rendered alternately effective and ineffective, and automatically acting means including a rotary controlling cam and actuating mechanism therefor connected with a moving part of the machine for simultaneously retracting and lifting said ruffling member from operative position when the actuating mechanism becomes ineffective and for restoring said rufiling member to operative position when the actuating mechanism again becomes eflective.

6. In a sewing machine, a rufliing mechanism comprising a ruffling member, a vibrating lever upon which the same is mounted, a fulcrum-pin, a rocker mounted thereon and provided with a pivotal stud upon which said lever is mounted and with a laterally extending slot, a rufHer rock-shaft and means for actuating the same, an arm fixed upon said rock-shaft, a link connection intermediate said arm and a point of the vibrating lever between its supporting stud and the rufiling member, and means including an arm carrying a stud entering the slot in said rocker for turning the same upon its fulcrum whereby said vibrating lever is operated to retract and lift the ruffiing member.

7. In a sewing machine, a rufiiing mechanism comprising a rufliing member, a vibrating lever upon which the same is mounted, a fulcrum-pin, a rocker mounted thereon and provided with a pivotal stud upon which said lever is mounted and with a laterally extending slot, a rufiler rock-shaft and means for actuating the same, an arm fixed upon said rock-shaft, a link connection intermediate said arm and a point of the vibrating lever between its supporting stud and the ruflling member, an arm loosely mounted upon said rufHer rock-shaft, a stud carried thereby and entering the slot of said rocker, and means for turning said loosely mounted arm for shifting said rocker upon its fulcrum whereby the said vibrating lever is operated to retract and lift the ruffling member.

8. In a sewing machine, a rufHing mech anism comprising a ruflling member, a vibrating lever upon which the same is mounted, a fulcrum-pin, a rocker mounted thereon and provided with a pivotal stud upon which said lever is mounted and with a laterally extending slot, a ruffier rock-shaft, actuating means therefor, controlling means for rendering said actuatingmeans alternately effective and ineffective, an arm fixed upon said rock-shaft, a link connection intermediate said arm and a point of the vibrating lever between its support-ing stud and the ruffling member, a tubular rockshaft loosely mounted upon the rufller rockshaft, an arm fixed upon said tubular rockshaft, a stud carried thereby and entering the slot of said rocker, and means operatively connected with said controlling means for turning said tubular rock-shaft for shifting said rocker upon its fulcrum.

9. In a sewing machine, the combination with stitchforming mechanism, a presserfoot, a spring-pressed presser-bar by which the same is carried and lifting means for said resser-bar, of ruifling mechanism comprising a rufHing member, a vibrating lever upon which the same is mounted, a pivotally mounted supporting lever operatively connected with said resser-bar, a fulcrum-pin carried by said supporting lever, a rocker mounted on said fulcrum-pin and provided with a pivotal stud upon which said vibrating lever is mounted and with a laterally extending slot, a ruffler rock-shaft and means for actuating the same, an arm fixed upon said rock-shaft, a link connection intermediate said arm and a point of the vibrating lever between its supporting stud and the ruflling member, and means including an arm carrying a stud entering the slot in said rocker for turning the same upon its fulcrum whereby said vibrating lever is operated to retract and lift the ruffling member inclependently of the presser-bar.

10. In a sewing machine, the combination with stitch-forming mechanism, a presserfoot, a spring-pressed resser-bar by which the same is carried and lifting means for said presser-bar, of ruffling mechanism comprising a rufiling member, a vibrating lever upon which the same is mounted, a pivotally mounted supporting lever having its outer end sustained by a positive connection with 'said presser-bar and having also a yielding connection with the presser-bar whereby the descending movement of the presser-bar acts upon said lever through said yielding connection, a fulcrum-pin carried. by said supporting lever, a rocker mounted on said fulcrum-pin and provided with a pivotal stud upon which said vibrating lever is mounted and with a laterally extending slot, a rufiier rock-shaft and means for actuating the same, an arm fixed "upon said rock-shaft, a link connection intermediate said arm and a point of the vi- I brating lever between its supporting stud with stitch-forming mechanism, a presserand the ruliling member, and means including an arm carrying a stud entering the slot in said rocker for turning the same upon its fulcrum whereby said vibrating lever is operated to retract and lift theruffling member independently of the presser-bar.

11, In a sewing machine, the combination bar and a presser-foot secured thereto, of a ruftling mechanism comprising a ruffiing member, a vibrating lever to which the same is rigidly secured, a support for said vibrating lever movable independently of the presser-bar, a spring intermediate said support and'the presser-bar and acting through said vibrating lever to press the rufiling member upon the work, and means for imparting vibratory movements to said lever.

12. In a sewing machine, the combination with stitchforming mechanism, a n presser-bar and a presser-footsecured there- 25 to, of a ruftling mechanism comprising a ruiiling member, a vibrating lever to which the same is rigidly secured a support movable independently of the presser-bar, means for sustaining said support from lateral movement with that of the ru'ttling member in advancing the work, a fulcrum for said vibrating lever carried by said support, a spring applied to said support and acting through said vibrating lever to press the ruffiing member upon the work, and means for imparting vibratory movements to said lever. v t

13. In a sewing machine, the combination with stitch-forming mechanism, a presser-' bar and a presses-foot secured thereto, of a ruffiing mechanism comprising a ruifiing member, a vibrating lever to which the same is rigidly secured, a support for said vibrating lever operatively connected with and movable independently of the presser-b'ar, a spring applied to, said support and acting through said vibrating lever to press the ed, a spring applied to said support independently of the vibrating lever but acting through the latter and its fulcrum-pin to press the rufliing member upon the work,

and means for imparting vibratory movements to said lever.

15. In a sewing machine, the combination with an actuating shaft, stitch-forming mechanism comprising a reciprocating needle operatively connected with said shaft, a presser-bar and a Presser-foot secured thereto, of a rufiiing mechanism comprising a ruffiing member, a vibrating lever upon which the same is rigidly mounted, a support movable presser-bar, a fulcrum-pin thereon upon which said lever is mounted, means connected with said shaft for imparting to the vibrating lever an operative swinging movement upon said fulcrum-pin for each thrust of the needle in the production of a stitch, a spring applied to said support and acting through said vibrating lever to press the ruffiing member upon the work, and means for limparting vibratory movements to said 1C,

ver.

16. In a sewing machine, the combination w th stitch forming mechanism, feeding mechanism, a presser-foot, a spring- )ressed presser -bar by which the same is carried and lifting means for said resser-bar,v of rufilmg mechanism comprising a ruflling member, a vibrating lever upon which the same s r gidly mounted, a support for said vibrating lever sustained by an operative connection with said presser-bar, a spring applied to said support and affording a yielding connection with said resser-bar acting through said vibrating lever to press the rufliing member upon the work independently of the presser-bar, and means actuatedindependently of said feeding mechanism for imparting vibratory movements to said lever.

17. In a sewing machine, the combination with stitch-forming mechanism, feeding mechanism, a presser-foot, and a presser-bar by which the same is carried, of ruflling ,mechanism comprising a rufiiing member, a

vibrating lever upon which the same is rigidly mounted, a fulcrum for said lever, a support for said fulcrum, a guide-member secured to said presser-bar adjacent the presser-foot and adapted to embrace and steady the vibrating lever in its operative movements, and actuating means independent of the feeding mechanism for said vibrating lever,

18. Ina sewing machine, the combination wit-h stitch-formin carried, of rutfling mechanism comprising a ruffling membr, a vibrating lever upon which the same is rigidly mounted, a support for said vibrating lever, a guide-member embracing said vibrating lever, means for securing said guide-member to the presserbar adjustable transversely of the direction of operative movement of said lever, and actuating means for said vibrating lever.

independently of the.

mechanism, a presserfoot, and a presserar by wh ch the same 18 19. In a sewing machine, a ruflling mechanism comprising a miller rock-shaft, means for actuating the same, a vibrating lever, a vertically movable support therefor, an operative connection between said ruii'ler rockshaft and the vibrating lever, lifting means applied to said support, a carrier mounted upon and extending laterally from said vibrating lever, a blade-holder endwise adjustable in said carrier, and a ruffling blade secured to said blade-holder.

20. In a sewing machine, a ruffling mechanism comprising a ruflier rock-shaft, means for actuating the same, a vibrating lever, a vertically movable support therefor, an operative connection between said ruifier rockshaft and the vibrating lever, lifting means applied to said support, a carrier mounted upon and extending laterally from said vibrating lever and provided with clamping means, a blade-holder having a shank of circular cross-section secured in the clamp of said carrier for endwise and circular adjustment, and a ruifiing blade secured to said blade-holder.

21. In a sewing machine, a rufiling mecha nism comprising a ruifler rock-shaft, means for actuating the same, a vibrating lever, a vertically movable support therefor, an operative connection between said rufiier rockshaft and the vibrating lever, lifting means applied to said support, a carrier mounted upon and extending laterally from said vibrating lever and provided with circularly adjustable clamping means, a blade-holder having a shank of circular cross-section secured in the clamp of said carrier for endwise and circular adjustment, and a rufiling blade secured to said blade-holder.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

ALBERT H. DE VOE. Witnesses:

H. A. KORN-EMANN, Jr., NORMAN J. AoKER.

Copies 01 this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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