US2920589A - Rufflers - Google Patents

Description

Jan. 12, 1960 c, G2BAEHR ETAL 2,920,589

RUFFLERS 4 Sheets-Sheet 1 Filed July 9, 1956 IN VENT OR 5 ATTORNEYS Jan. 12, 1960 Q BAEHR ET L 2,920,589

RUFFLERS 4 Sheets-Sheet 2 Filed July 9, 1956 W ATTORNEYS Jan. 12, 1960 c. G. BAEHR ETAL 2,920,589

RUFFLERS 4 Sheets-Sheet 5 Filed July 9, 1956 I INVENTORS C f C.

iMM- ATTORNEY5 Jan. 12, 1960 c. G. BAEHR ETAL 2,920,589

RUFFLERS Filed July 9, 1956 4 Sheets-Sheet 4 58 so a A'ITOR NE Y5 RUFFLERS Carl G. Baehr, West Haven,

North Haven, Conn., assignors turing Company, New Haven, Connecticut and Basil S. Nickerson,

to The Greist Manufac- Conn., a corporation of This invention relates to a sewing machine attachment, and more particularly to a rufller attachment designed for use with the ordinary household sewing machine.

It is contemplated by the present invention to provide an improved rufiler attachment of comparatively simple construction which will effect operative movements of the ruffiing blade by the reciprocation of the needle bar. Moreover, as it is sometimes desired to effect the movements of the ruffiing blade at each operation of the needle bar and at other times to effect a stroke of the ruffiing blade only after a number of operations of the needle bar, the device is so constructed that it may be adjusted for varied operations of this kind. That is, it may, for example, be set to effect a movement of the ruffiing blade for every three, six or twelve reciproeations of the needle bar, or it may be set to effect a movement of the milling blade at every reciprocation of the needle bar. The above adjustments are only given as illustrative, for example, and other ratios may be arranged if desired.

One object of the present invention is to provide a new and improved ruffier attachment for sewing machines.

A further object of the invention is to provide a rufller attachment which may be readily adjusted to vary the number of ruflles made with respect to a given number of operations of the needle bar of the sewing machine.

Still another object of the invention is to provide a rufiler attachment of the character described above which will be of novel construction and wherein the adjustments may be readily and conveniently made both with respect to the number of rufiles effected during the given number of operations of the needle bar and with respect to the range of movement of the miller blade in order to make wide or narrow rufiles.

To these and other ends the invention consists in the novel features and combinations of parts to be hereinafter described and claimed.

In the accompanying drawings:

Fig. \1 is a side elevation view embodying the invention;

Fig. 2 is a similar view device;

Fig. 3 is a of a miller attachment from the opposite side of the top plan view of the attachment with some parts broken away to show the interior construction;

Fig. 4 is a front elevational view of the attachment with part of the casing broken away; Fig. 5 is a rear elevational view casing broken away;

Fig. 6 is a sectional with a portion of the view on line 6-6 of Fig. 4;

United States Patent 0 Fig. 7 is a view similar to Fig. 6 but showing the parts in another position;

Fig. 8 is a view similar to Fig. 6, showing a further position of the mechanism;

Fig. 9 is a detail side elevational view of a portion of the operating mechanism within the case;

Fig. 10 is a sectional view on line 1010 of Fig. 9;

Fig. 11 is a side elevational view of the drum member shown in Fig. 10;

Fig. 12 is a sectional view on line 12--12 of Fig. 9;

Fig. 13 shows in detail the configuration of the operating cams shown in section in Fig. 12; and

Fig. 14 is a detail view of the arm for effecting return of the pendulum lever.

To illustrate a preferred embodiment of the invention there is shown in the drawings a rufiler attachment comprising a cup-shaped casing 10 which serves as the frame or support for supporting the rufiler mechanism, this casing being provided with a cover 11 which may be detachably secured to the casing by suitable fastening elements such as screws 12. Attached to the casing and extending forwardly therefrom is a frame plate 13 to which is secured the usual adapter 14 designed to be attached to the presser bar of the sewing machine.

Also secured to the frame plate 13 by the bracket 15 (Fig. 2) is the resilient foot member 15 with which cooperates the ruflling blade 16. This ruffiing blade is secured by a screw 17 to a lug 18, which lug is formed integrally with a slide bar 19 slidably mounted upon the frame and held in position by a guide member 20 between which and the plate 13 the member 19 slides. The rear end of the slide bar 19 is pivotally connected at 19 to the pendulum lever 21 which will be referred to hereinafter.

Rigidly secured to the casing 10 and cover plate 11 is a shaft 22 (Figs. 5 and 12), this shaft being threaded at one end, as shown at 23, to receive the nut 24 at one side of the case and provided at its other end with an enlarged portion 25 which extends through the cover. At this end of the shaft is also a reduced portion 26 upon which is received the fork arm 27, the fork arm being pivotally mounted upon the shaft 22 and held thereon by the screw 28 (Figs. 4 and 5). It will be understood that the fork arm is bifurcated at its forward end, as shown at 29 (Fig. 1), for connection with the needle bar of the sewing machine so that upon reciprocation of the needle bar the fork arm 27 is oscillated about the axis of the shaft 22.

Pivotally mounted on the shaft 22 is an auxiliary frame member A, U-shaped in cross section, which frame member comprises side plates 30 and 31 and a bight or bridge portion 32. The plate 30 is mounted on the end of the shaft 22 adjacent the threaded portion 23, while the plate 31 is mounted on the enlarged portion 25 of this shaft so that the frame may oscillate about the axis of the shaft.

Rotatably mounted in the side members 30 and 31 of the Ushaped frame member is a shaft 34 (Fig. 10), which shaft projects outwardly through a slot 35 in the casing cover 11, as shown in Fig. l, and the projecting end of this shaft passes through an opening in the fork arm and has mounted upon its projecting end an adjusting button 36. With this construction it will be seen that when the fork arm is oscillated, the shaft 34 together with the U-shaped frame will be oscillated about the axis of the shaft 22 although, as will be explained later, the shaft 34 is rotatable within the opening in the fork arm through which itextends.

Secured to the shaft 34 (Fig. 10) are a series of selector cams 37, 38, 39 and 40, each of these selector cams being provided with a peripheral recess or notch shown at 41 in Fig. 11. The notch on one cam is, as shown,

' spaced or staggered approximately 90 degrees with respect to the notch on the next adjacent cam. These cam members are rigidly secured together by pins 42 and may, of course, if desired, be made as one cylindrical piece with the notches therein in staggered relation on the periphery thereof. A spring 43 acts between a spacing washer 44 and the side plate 31 of the frame member to hold the shaft 34 frictionally against rotation.

Pivotally mounted on a pin 50 secured in the side plates 30 and 3-1 of the frame member A are a plurality of levers '51, there being four as shown, or the same number as the cams 3740. Each of these levers is provi'd'ed at its upper end with a boss or projection 52 which is designed to enter one of the recesses 41 when the latter is in registration therewith and springs 53 secured to the bight portion 32 of the frame A bear against the upper ends of the levers and urge the projections 52 toward the recesses 41.

As shown in Figs. 5, 6 and 12, the pendulum lever 21 extends through a slot 54 in the casing 10 and is rotatably mounted at its upper end upon the shaft 22. Formed integrally with this lever is a laterally extending arm 55 which extends across the actuating levers 51 and is adapted to be engaged by the lower hook-shaped ends 56 of these levers. As is shown in Fig. 8, when the projection 52 of a given lever 51 is received in the recess 41 of one of the selecting cams 3740, the hook 56 on the lower end of this lever will engage the arm 55 when the U-shaped frame A is oscillated and move the arm forwardly to effect a rullle-forming movement of the ruifling blade 16.

As will now be explained the projections 52 on the levers '1 can only enter the recesses 41 when the selected lever is permitted to do so by virtue of one of a number of control cams mounted on the shaft 22. As shown more especially in Fig. 12 a plurality of these control earns 58, 59, 60 and 61 are secured together by pins 62 and rotatably mounted upon the shaft 22. Also secured to these cams by the pins 62 is 'a ratchet wheel 63. A spring 64 acts between the side member 30 of the frame A and the ratchet wheel 63 to friction-ally hold the stack of cams and the ratchet wheel against movement on the shaft 22.

The construction of the control cams is show in Fig. 13. As illustrated the cam 58 is provided with one notch or recess 58 in its periphery while the control cam 59 is provided with two diametrically opposite notches 59 and the cam 60 with four notches 60 spaced90 degrees aboutits circumference. The cam 61 is smaller in diameter than the other cams and has an unbroken periphery, its diameter being equal to the distance between the bottoms of the opposed notches or recesses 59 or 60*.

As shown more especially in Figs. 6 to 8, each of the levers 51 is provided with a projection 65 upon its inner edge, which projection is adapted to enter a notch or recess in one of the control earns 58 to 60'. It will be understood that the levers 51 are so spaced that one is opposite each of the control cams 58, '59, 6t) and 61 as well as opposite each of the selecting earns 37, 38, 39 and p 49. These levers are not permitted to assume a position in which the hooked ends 56 engage the arm 55 except when the projection 52 lies within one of the recesses 41 and the projection 65 lies within one of the recesses 58 59 or 60 or lies opposite the disk cam 61 so that the pendulum lever will not be operated to move the milling blade unless one of the levers 51 falls into one of the recesses in one of the control cams, and this cannot occur unless the projection 55 on such lever is opposite one of the recesses 41 on one of theselector cams.

Therefore, a given lever 51 is selected by rotating the control cams until one of the recesses 41 lies in position to receive the projection 52 on one of the actuating levers. As these recesses 41 are staggered circumferentially of the control cams as well as spaced along the shaft 34, only one of the levers 51 can be selected and permitted to operate at any one time. This lever will lie opposite one of the control cams 58-, 59, 60 and 61 and will only be effective to move the pendulum lever when one "of the recesses in thecams 58, 59 or 60 is in position to receive the projection 65 or, if the-selected one of the levers 51 lies opposite the control cam 61, it will at all times be in position to actuate the pendulum lever 21.

As has been previously stated, the frame A will be oscillated with the oscillation of the fork arm due to the fact that the shaft 34 extends rotatably through an open ing in the fork arm. A pawl 66 (Fig. 7) is pivotally mounted upon the shaft 50 and is urged into engagement with the teeth of the ratchet Wheel 63 by a spring 67 secured to the bight portion 32 of the frame A. Therefore, when this latter frame is oscillated by the fork arm, the ratchet wheel is given a step-by-step rotation which, as will be obvious from Fig. 12, rotates, step by step, the controlling cams 58-61 which are secured together and secured to the ratchet wheel by the pins 62, thus determining the actuation of the pendulum lever by the selected one of the actuating levers 51.

Pivotally mounted at 68 on the vertical wall of the cup-shaped casing 10 is a holding pawl 69 urged into engagement with the teeth of the ratchet wheel by the spring 70, which pawl prevents reverse rotation of the ratchet wheel when the frame A is oscillated on its return stroke.

It will be obvious that the levers 51 will only move the pendulum lever in one direction which is the direction 'of its operative stroke, and means are provided to return this lever to its rest position, shown, for example, in Figs. 6 and 7. To this end a lug 72 is provided in an upstanding position (Figs. 6, 7'and 8) upon the upper portion of the pendulum lever 21, and this lug is adapted to be engaged by a laterally or transversely extending arm 73 on a link 74 (Figs. 1 and 14), which link is connected to the fork arm 27. This link is provided with an opening 75 which embraces the portion 26 of the shaft 22 between the fork arm 27 and the cover 11 of the casing and the arm 73 projects into the casing through an arcuate slot 76 provided in the cover 11 in order to engage the lug 72 (Figs. 1 and 3).

Adjacent its outer end the link 74 is provided with a threaded opening 77 which receives the threaded stem 78 of an adjustingbutton 79. The stem 78 extends through a slot 80 (Fig. 1) in the rear end of the fork arm 27. Thus by loosening the adjusting button 79 and setting it in various positions in the slot 80, the position of the arm 73 can be varied with respect to the fork arm 27 and thus vary the distance or angle through which the pendulum lever 21 is returned. This will vary the length of the stroke of the ruffling blade 16 and, therefore, the width of the resulting ruffle.

The operation of the device will now be described and, While reference will be made to the particular construction of the various cams as illustrated, it will be understood that changes in such construction may be made to vary the operation of the device as desired.

As illustrated, the ratchet Wheel 63 has twelve teeth and, therefore, will be rotated through a complete revolution in twelve complete oscillations of the fork arm 27. Therefore if the actuating lever 51 opposite the controlling cam 58 is selected, the pendulum lever will make one stroke in every twelve reciprocations of the needle bar of the sewing machine and fork arm 27, while if the lever opposite the cam 59 is selected, there will be two actuations of the rufiling blade in every twelve reciprocations of the needle bar. and four such actuations in every twelve reciprocations of the needle bar if the lever opposite the cam 60 is selected. If the actuating lever opposite the cam disk 61 is selected, there will bean actuation of the pendulum lever and milling blade every complete reciprocation of the needle bar so that there will be a rutlle produced for each sewing stitch made by the needle.

The selection of one of the levers 51 is made by rotating the shaft 34 by rotating the button 36. For this purpose the button may be provided with indicia 82 to indicate the setting of the control disks 37 to 40, which indicia may cooperate with a stationary mark 83 on the cover :11 of the casing. For example, if the adjusting the frame A the hook end 56 button 36 is turned until the indicating number 12 is opposite the mark 83, this will turn the shaft 34 to the position in which the recess 41 in the selecting cam 37 is opposite the boss 52 on one of the levers 51, as shown, for example, in Fig. 7. Thus the first of the levers 51 (that is the lever toward the operator, as shown in this figure) will have been selected, which lever, as has already been explained, also lies opposite the controlling cam 58 on the shaft 22.

In this position of the shaft 34 and the controlling cams thereon the lever 51 will be moved in a counterclockwise direction to a slight extent by the spring 53, as shown in Fig. 7, so that the projection 65 on this lever will be urged toward the cam 58 but, if this projection lies opposite an unbroken part of the periphery of this cam, the projection 52 will not be permitted to drop into the recess 41.

If the fork arm is oscillated by operation of the needle bar with the parts in this position, the frame A will be oscillated, and through the pawl 66 and ratchet wheel 63 will rotate the bank of cams 58-61 in a step-by-step manner. During this rotation the lever 51 will oscillate idly until the cam 58 is brought to a position (which occurs once in every complete revolution of the cam) in which the recess 58 lies opposite the projection 52. At this time the spring 53 will rotate the selected lever 51 in a counterclockwise direction, as shown in Fig. 7, so that the projection 52 will drop into the recess 41 and the projection 65 will drop into the recess 58 as shown for example in Fig. 8. Upon the succeeding oscillation of of the lever 51 will engage the arm 55 on the pendulum lever 21 and move the latter forwardly in an operative stroke. Thus a rufile will be made once in every twelve reciprocations of the needle bar.

Upon the return or counterclockwise movement of the fork arm the arm 73 on the link 74 will, as shown in dotted lines in Fig. 6, engage the lug 72 on the pendulum lever 21 and return the latter and the rufiiing blade to its rest position or in a position in which it is ready for a further operative stroke.

If it is desired to make a ruflie every six reciprocations of the needle bar, the adjusting button 36 is turned until the numeral "6 is opposite the mark 83 which will select by means of the recess 41 in the selecting cam 38 the lever 51 which is opposite the controlling cam 59, and as the cam contains two notches 59 two operations of the rufiiing blade will be effected for each revolution of the cam 59 or one every six reciprocations of the needle bar.

If the lever 51 is selected, which is opposite the controlling cam 60, by means of the groove 41 in the selecting cam 39, a ruffle Will be effected every three reciprocations of the needle bar as this cam contains four recesses 60.

If it is desired to effect a ruffie at every stitch of the needle bar, the fourth lever 51 is selected by the selecting cam 40 and, as this lever lies opposite the cam disk 61 of reduced diameter, the projection 52 of this lever will always lie within the groove 41 of the selecting cam 40, and hence produce a ruffle at each reciprocation of the needle bar.

If it is desired to do straight sewing without ruffling, the adjusting button 36 is turned to "0 position with respect to the mark 83, as shown in Fig. 1. In this position the projections 52 on the levers 51 will lie opposite portions of full diameter of the cams 37 to 40 and hence none of the levers 51 will be selected or be permitted to engage and actuate the pendulum lever 21, and there will be no movement of the ruffiing blade.

As has been stated, the width of the ruffle may be varied by adjusting the button 79 within the slot 80 so as to ad just the position of the return link 74 with respect to the fork arm.

While we have shown and described a preferred embodiment of our invention, it will be understood that it is not to be limited to all of the details shown, but is capable of modification and variation within the spirit of the invention and within the scope of the claims.

What we claim is:

1. A rufiier attachment for sewing machines, said attachment comprising a main supporting frame having a fork arm pivotally mounted thereon, a pendulum lever oscillatably mounted on said frame, a rufiiing blade pivotally connected to the lower end of the lever, means for moving said pendulum lever to effect an active stroke of the rufiiing blade comprising a frame member oscillatably mounted on the main frame coaxially with said pendulum lever, means for oscillating said frame member from said fork arm, a plurality of actuating levers carried by said frame member, means on each of said levers adapted to engage said pendulum lever and actuate the same when said frame member is oscillated, a selector cam means,

' one for each of said levers, a plurality of control cams,

one for each of said levers, and interengaging means on said selector cam means and said actuating levers to permit engagement of one of the latter with one of said control cams, means on each of said control cams to control the engagement of the associated actuating lever with the pendulum lever, and means to oscillate said frame member to effect movement of the pendulum lever by said one of the actuating levers.

2. A ruffier attachment for sewing machines, said attachment comprising a main supporting frame having a fork arm pivotally mounted thereon, a pendulum lever oscillatably mounted on said frame, a ruftling blade pivotally connected to the lower end of the lever, means for moving said pendulum lever to effect an active stroke of the rufliing blade comprising a frame member oscillatably mounted on the main frame coaxially with said pendulum lever, means for oscillating said frame member from said fork arm, a plurality of actuating levers pivotally carried by said frame member, means on each of said levers adapted to engage said pendulum lever and actuate the same when said frame member is oscillated, a plurality of control cams, each of which is provided with means to engage and control a selected one of said levers and render it operative to engage and actuate said pendulum lever, and means for selecting one of said actuating levers and placing it into engagement with one of said control cams for control thereby.

3. A ruflier attachment for sewing machines comprising a main frame, a pendulum lever supported thereby, a rufiing blade to which said pendulum lever is connected, means for moving said lever to effect movement of the blade comprising a plurality of movably mounted actuating members, means on each of said members to engage and actuate the pendulum lever, a rotatably mounted control cam mechanism having a cam to engage each of said members and control its engagement with the pendulum lever, selecting means to select one of said actuating members and permit its engagement by one of said control cams, and means to rotate said control cams and actuate said members.

4. A ruflier attachment for sewing machines comprising a main frame, a pendulum lever supported thereby, a rufliing blade to which said pendulum lever is connected, means for moving said lever to effect movement of the blade comprising a rockably mounted auxiliary frame, means carried by said auxiliary frame to engage and actuate the pendulum lever, a plurality of control cams rotatably mounted on the auxiliary frame to control the engagement of said actuating means with said lever, means to select one of said control cams for operation by effecting engagement thereof with the actuating means, means for rotating said cams in a step-by-step movement, and means for oscillating said auxiliary frame.

5. A ruffler attachment for sewing machines comprising a main frame, a pendulum lever supported thereby, a rufliing blade to which said pendulum lever is connected,

means'for moving said lever to efiect movement of the blade comprising a plurality of movably mounted members, each of which is adapted to engage and actuate the pendulum lever, a rotatable control cam adapted to engage each of said members to control its engagement with the pendulum lever, means engaging said members and movable to position to select one thereof for engagement by one of the control Cams and also to a position to hold said one member out of engagement with said control cams, means urging said members into engagement with said cams, and means to actuate said members and to rotate said control cams.

6. A rufiler attachment for sewing machines comprising a main frame, a pendulum lever supported thereby, a ruflling blade to which said pendulum lever is connected, means for moving said lever to effect movement of the blade comprising a plurality of movably mounted members, each of which is adapted to engage and actuate the pendulum lever, a rotatable control cam adapted to engage each of said members to control its engagement with the pendulum lever, means engaging said members and movable to position to select one thereof for engagement by one of the control cams and also to a position to hold said one member out of engagement with said one control cam, means to actuate said members and to rotate said control cam, and manually operated means to move said selecting means to position to select any one of said members.

7. A rufller attachment for sewing machines comprising a main frame, a pendulum lever supported thereby, a ruifiing blade to which said pendulum lever is connected, means for moving said lever to effect movement of the blade comprising a plurality of movably mounted members, each of which is adapted to engage and actuate the pendulum lever, a rotatable control cam adapted to engage each of said members to control its engagement with the pendulum lever, means engaging said members and movable to position to select any one of said members for engagement with one of the control cams while holding the remaining members out of such engagement and also to position in which all of said members are held out of engagement with their respective control cams, means urging said members into engagement with said cams, and means to actuate said members and to rotate said control cam.

8. A rufiler attachment for sewing machines comprising a main frame, a pendulum lever supported thereby, a ruffling blade to which said pendulum lever is connected, means for moving said lever to effect movement of the blade comprising actuating means to engage said pendulum lever and actuate the same, a plurality of rotatable control cams to control the engagement of said actuating means with said lever, selecting means for establishing engagement between one of said cams and said actuating means to effect control of the latter by said one cam and for simultaneously preventing engagement between the others of said cams and said actuating means, means for operating said actuating means to move the pendulum lever, and means for rotating said cont-r01 cams.

9. A rufiler attachment for sewing machines comprising a main frame, a rufiding blade carried thereby, a pendulum lever pivoted on the frame and connected to said rufiling blade to actuate the same, an auxiliary frame rockably connected to the main frame, a plurality of actuating levers pivotally mounted on said auxiliary frame and adapted to be moved to and from a position in which they engage and actuate the pendulum lever, a plurality of rotatable control cams on said auxiliary frame each adapted to engage and control one of said actuating levers by permitting movement thereof to said position, means for rotating said cams, means for rocking said auxiliary frame to thereby rock the actuating levers, and selecting cam means on said auxiliary frame with which said levers are engaged to-select one thereof and 8 permit it to engage a corresponding control cam to. be controlled thereby.

10. A rufller attachment for sewing machines comprising a main frame, a rufiling blade carried thereby, a pendulum lever pivoted on the frame and connected to saidruflling blade to actuate the same, an auxiliary frame rockabl'y connected to the main frame, a plurality of actuating levers pivotally mounted on said auxiliary frame and adapted to be moved to and from a position in which they engage and actuate the pendulum lever, a rotatably mounted control cam for each of said levers having a recess in its periphery adapted to receive a part of a corresponding one of said actuating levers to permit movement thereof to position to engage the pendulum lever, rotatable selecting cam means on said auxiliary frame adapted to engage a part of each of said actuating levers and control their engagement with said control cam, manually operated means to move said selecting cam to position to select one of said levers for engagement with said control cam, and means actuated by the needle bar of the sewing machine to rotate said control cams and rock said auxiliary frame.

ll. A rufiler attachment for sewing machines comprising a main frame, a ruffiing blade carried thereby, a pendulum lever pivoted on the frame and connected to said ruifling blade to actuate the same, an auxiliary frame rock-ably connected to the main frame, a plurality of actuating levers pivotally mounted on said auxiliary frame and adapted to be moved to and from a position in which they engage and actuate the pendulum lever, a rotatably mounted control cam for each of said levers having a recess in its periphery adapted to receive a part of a corresponding one of said actuating levers to permit movement thereof to position to engage the pendulum lever, rotatable selecting cam means on said auxiliary frame adapted to engage a part of each of said actuating levers and control their engagement with said control cam, manually operated means to move said selecting cam to position to select one of said levers for engagement with said control cam, means actuated by the needle bar of the sewing machine to rotate said control cams and rock said auxiliaiy frame, and means to adjust the throw of the pendulum lever.

12. A rutfler attachment for sewing machines comprising a main frame, a ruffling blade carried thereby, a pendulum lever pivoted on the frame and connected to said ruffiing blade to actuate the same, and auxiliary frame rockably connected to the main frame, a plurality of actuating levers pivotally mounted on said auxiliary frame and adapted to be moved to and from a position in which they engage and actuate the pendulum lever, a rotatably mounted control cam for each of said levers having a recess in its periphery adapted to receive a part of a corresponding one of said actuating levers to permit movement thereof to position to engage thependulum lever, rotatable selecting cam means on said auxiliary frame adapted to engage a part of each of said actuating levers and control their engagement with said control cam, manually operated means to move said selecting cam to position to select one ofsaid levers for engagement with said control cam, means actuated by the needle bar of the sewing machine to rotate said control cams and rock said auxiliary frame, and spring means urging said actuating levers toward engagement with said control cams and said selecting cam means.

13. A miller attachment for sewing machines comprising a main frame, a willing blade carried thereby, a pendulum lever pivoted on the frame and connected to said milling blade to actuate the same, an auxiliary frame rockably connected to the main frame, a plurality of actuating levers pivotally mounted on said auxiliary frame and adapted to be moved to and from a position in which they engage and actuate the pendulum lever, a rotatably mounted control cam for each of said levers having a recess in its periphery adapted toreceive a part of a corresponding one of said actuating levers to permit movement thereof to position to engage the pendulum lever, rotatable selecting cam means on said auxiliary frame adapted to engage a part of each of said actuating levers and control their engagement with said control cam, manually operated means to move said selecting cam to position to select one of said levers for engagement with said control 0am, means actuated by the needle bar of the sewing machine to rotate said control cams and rock said auxiliary frame, said control cams being mounted coaxially with the pivot of the pendulum lever, said selecting cam means mounted in spaced relation to said control cams, and said actuating levers ex- 10 tending between said control cams and said selecting cam means.

References Cited in the file of this patent UNITED STATES PATENTS 1,197,777 Stafford Sept. 12, '1916 1,223,632 StaflEord Apr. 24, 1917 1,231,170 Karle June 26, 1917 1,261,628 Russell Apr. 2, 1918 2,377,777 Hale June 5, 1945 2,810,360 Perla Oct. 22, 1957

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