Патент USA US3053217код для вставки
Sept. 11, 1962 3,053,207 S. ADLER SEWING MACHINE Filed Oct. 1. 1959 4 Sheets-Sheet 1 . / \\ n\ .o4 / . r ./ h. n:iI’, ¢ . \ .; 4 saz'a/va/y INVENTOR. 401:2 Sept. 11, 1962 s. ADLER 3,053,207 SEWING MACHINE Filed Oct. 1, 1959 4 Sheets-Sheet 2 . INVEN TOR. $040,410” 401 £2 %41.0/ @Mszm Sept. 11, 1962 s. ADLER 3,053,207 SEWING MACHINE Filed Oct. 1, 1959 4 Sheets-Sheet 3 INVEN TOR. $4.4 a/ra/r x0152 Sept. 11, 1962 S. ADLER 3,053,207 SEWING MACHINE Filed Oct. 1, 1959 4 Sheets-Sheet 4 INVENTOR. 5010mm)’ In £2 United States Patent 0 " 1 3,®53,Z07 Patented Sept. 11, 1962 2 forming a part of drive shaft 14. Pitman 33 is oscillated 3,053,207 Solomon Adier, Kew Gardens, N.Y., assignor to Nippon Sewing Machine Mfg. Co., Ltd, Nagoya, .Fapan, a corporation of Japan SEWING MACHINE Filed Oct. 1, 1959, Ser. No. 843,852 9 Claims. (Cl. 112-158) by means of an eccentric 35 carried by shaft 14 and con veniently engages that eccentric by being provided with a forked upper portion 36 between the arms of which the eccentric rides. Pitman 33 is pivotally supported as at 37 by a suitable portion of the housing. The head 13 of the machine in a conventional man ner carries a spring-in?uenced presser bar 38 supporting at its lower end a presser foot 39 which lies adjacent This invention relates to a structurally and functionally improved sewing machine by means of which ornament-at 1O feed dog 26 and the needle carried by bar 19. Beyond this, the mechanism may include a lever 40 extending and novel stitch patterns may be produced by relatively outwardly from the housing of the machine and by means unskilled operators. of which, in well-known manner, the stitch length and It is a primary object of this invention to furnish such the direction of the feed of the material, as controlled a machine involving a novel and simple mechanism capa ble of ready and speedy production and which will op 15 by the dog 26, are regulated. Also, there may extend beyond the housing of the machine a control or knob 41, in addition to a pattern knob or control 412. The former serves to permit regulation of the bight. The latter con erate over long periods of time with freedom from all diiiiculties. Among further objects of the invention are the com bining of a mechanism of this type with the needle bar of a sewing machine in order to impart predetermined 20 movements to the latter such that a zigzag stitch will be trols the stitch pattern as produced by the machine in accordance with the present teachings. In FIG. 4 various ‘detailed structures have been omitted. produced, and the combining of that mechanism with All of them may be more or less conventional and are well understood by those conversant with the art and the structures necessary in a sewing machine of the zig riety of ornamental stitches Will be available to the user of the mechanism. 25 zag type. They will include proper bearings for shaft the feed dog control of the machine so that a great va With these and other objects in mind, reference is had to the attached sheets of the drawings illustrating prac— tical embodiments of the invention and in which: FIG. 1 is a fragmentary perspective View of a pre ferred form of control mechanism; FIG. 2 is a sectional front view of that mechanism; FIG. 3 is a perspective view of a pair of components included within the assembly as shown in FIGS. 1 and 2; FIG. 4 is a perspective view of the mechanism which may be present in a sewing machine with the present 35 teachings incorporated therein; and FIG. 5 is a view similar to FIG. 1 but showing an 14 and suitable couplings between these bearings and the housing portions of the machine. Similar necessary cou pling structures will exist between the supports for shafts 22 and 23 and the bed portion of the machine as well as between the pivot 21 and the head 13. Other struc tures have been shown but need not be herein described, in that their design and operation are well understood, not alone in the case of straight stitch, but also in the instance of zigzag machines. The lateral movements of needle bar 19 are controlled by means of a link 43. This link has one of its ends pivotally connected as at 44 to the support or carriage 20. It is apparent that as this link is reciprocated, sup‘ port 20 will rock around pivot 21 to thus cause needle bar 19 to oscillate. With a view to reciprocating link 43, drive shaft 14 mounts a gear 45. The latter meshes with the teeth of 16} indicate a suitable machine bed from which a column a gear 46 connected by a suitably supported shaft with or pedestal extends in an upward direction and is con an eccentric 47. As in FIG. 1, a member 48 having tinued in the form of an arm 12 terminating in a head 13. In accordance with conventional practive, there ex 45 its inner face channeled receives within that channel the eccentric. That member is rockingly supported as at 49 tends through the upper ends of the head and pedestal and carries in a channel de?ned by ?anges St} a block portions and throughout the length of the arm a rotatably 51, so that the latter may slide toward and away from mounted shaft 14. At one end, this shaft convenienlty the pivot 49. That block is connected to the inner end has associated with it a wheel 15. Shaft 14- is rotated by an electric motor or otherwise, and may be driven by 50 of link 43. It is apparent that as shaft 14 rotates, needle bar 19 will ‘be reciprocated. Also, member 48 will os a belt (not shown) engaging the pulley portion 16 of alternative form of mechanism. Referring primarily to FIG. 4, by way of illustration of a sewing machine to which the present invention may be applied, the dot~and-dash lines under the numeral cillate around its pivotal mounting 4l9 incident to the action of eccentric 47. With such oscillation, link 43 will reciprocate to impart lateral movement to carriage or or link 18 serves to reciprocate a needle bar 1?. The latter is slidably mounted within a guide 20 pivotally 55 guide 20 and consequently the needle carried by bar 19. The farther block 51 is shifted away from pivot 49, the supported as at 21 so that the needle bar in addition to greater will be the amplitude of reciprocation imparted straight reciprocation may move laterally. to link 43. The more block 51 is moved towards pivot Within the bed 1%) of the machine, rock shafts 22 and 49, the smaller will be the amount of reciprocation. 23 are rotatably supported‘. Shaft 23, by means of a With the inner end of link 43 in substantial alignment crank 24-, serves to reciprocate feed bar 25. The latter with pivot 49, no reciprocation will occur. is guided in any desired conventional manner and As in FIG. 1, wherein the mechanism is achieving connected to a feed dog 26. Shaft 22. by means of merely lateral movements of the needle bar, the pattern gearing 27 serves to drive a gear 28‘ ?xed to a loop dial or control 42 is secured to a shaft 52 supported for taker 29 to actuate the latter. Also it moves the feed dog in accordance with usual practice. Shafts 22, and 65 rotation Within the housing. As illustrated, that dial conveniently carries indicia in the form of a series of 23 are oscillated conveniently by rocking cranks 30 and symbols representative of the type of stitch which will 31 and connected respectively to pitmans 32 and 33. The former has its upper end coupled to a crank portion 34: be produced according to the position assumed by the wheel 15. Adjacent its opposite end, shaft 14 conven iently mounts a crank 17 which by means of a pitman 3,053,207 3 dial. There may also be included in these symbols an indication of a position assumed by the parts in which no mechanism will automatically function to produce fancy or embroidery stitches. A registering mark or equivalent, as indicated, may serve as a guide with which the various subdivisions of the dial may be aligned. Se~ cured to shaft 52 are a plurality of elements 53 having cam or actuating portions 54. As hereinafter brought A. rides within a notch 74 formed in a bell crank member 75. The latter is pivotally supported with respect to the hous ing of the machine by a shaft indicated at 76. The sec ond arm of bell crank lever 75 also conveniently ter mintes in a notch portion 77. Riding within the latter is a pin 78 af?xed to the inner end of link 43. It is thus apparent that as follower 68 is shifted by a given cam 60 of the ‘group or series carried by arms 56, shaft 67 out, these may serve as selectors under the control of will be rocked to correspondingly move arm 72. This the operator to permit control of the machine so that a 10 in turn will transmit rocking motion to bell crank lever desired stitch will be produced. 75 and thus the pin 78 af?xed to link 43. This will cause To achieve this, a supporting shaft 55 is provided ad the inner end of the link to be moved towards and away jacent and parallel to shaft 52. This shaft mounts a from the pivot 49. As illustrated, shaft 67 may have af plurality of arms 56 each in permanent alignment with ?xed to it a knob 79 positioned beyond the exterior face of one of the elements 53. The inner ends of arms 56 ter ' the housing. A detent structure (not shown) may serve minate in follower portions 57 engageable with the cam or to retain shaft 67 in a position where follower 68 is projecting parts 54. The opposite ends of arms 56 serve by knob 79 above the cams so that the follower is not to support operating cams. The design providing for this structure is best illustrated in FIG. 3. . In that view, the numeral 58 designates an aperture within an arm 56 and through which shaft 55 extends so as to rockingly support the arm. Opposite the follower portion 57 the arm provides in its end zone an opening 59. A cam 69 embodies a suitable con?guration and has ex tending from it a disk-shaped portion 61 of a diameter related to the diameter of opening 59. This disk portion may be either integral with the cam or else suitably af ?xed to the same. Its thickness should preferably be equal to that of arm 56. As will be apparent, with disk portion 61 within the aperture 59, the cam will be sup ported for rotation by the arm 56. Also, the weight of the assembly thus furnished will assure that the arm 56 under the action of gravity will tend to maintain its fol lower portion 57 in an elevated position. Cam 60 is rotated with respect to the arm preferably by forming in the inner edge of the disk 61 an annular series of gear teeth 62, thus furnishing a ring gear. In common with elements 53, the cam and arm assem effected by them. Considering the operation of the mechanism so far described, it is apparent that with the machine properly threaded and material disposed below the presser foot 39, a rotation of shaft 14 ‘will cause needle bar 19 to bc reciprocated and the feed dog 26 to shift the material in the intervals between stitches. Simultaneously with the formation of these stitches, link 43 may be reciprocated due to the oscillation of member 48 around its pivot 49 as caused by the eccentric 47. If desired, a structure may be furnished for preventing this reciprocation by simply attaching to the shaft 80, mounting knob 41, an eccentric 81 which will bear against the edge of link 43; a spring 82, conveniently associated with the outer arm of bell crank 75, assuring this contact. Obviously, if eccentric 81 is shifted to a position such that link 43 has its inner end lowered to a point where pin 32 is substan ' tially in line with pivot 49, no movement of link 43 will occur, and straight stitching will result. Under these or other circumstances, control 40 may be actuated to govern the operation of rock shaft 22 to vary the length of the blies 56-60 are disposed adjacent each other. A shaft stitches or to cause a reverse feeding of the material 63 is supported for rotation by the arm portion 12 of the 40 being operated on. housing and extends through the openings de?ned by the Assuming that eccentric 81 does not occupy a position ring gears 62 of the several cams. Within that area, this such that link 43 is maintained in stationary condition, shaft is formed with teeth 64- to provide a pinion portion and that dial 42 has been shifted to a position at which common to and meshing with all of the ring gears of the the portion 54 of a desired selector element 53 is in en several cams. A worm 65 is mounted by drive shaft 14 gagement with the follower 57 of an arm 56, then the and engages with a worm wheel 66 ?xed against move opposite end of that arm will be elevated. With such ment with respect to shaft 63. Accordingly, as shaft '14 elevation, the corresponding cam will be raised to the rotates, shaft 63 will be turned, and due to the fact that zone of follower 68. Such raising will not result in a its pinion portion drivingly engages the teeth of the cam disengagement of teeth 64 from the teeth 62 of the selected elements, the latter will be constantly rotated. cam or any other cam of the group. Consequently, the Considering FIG. 2 in conjunction with FIG. 1, it will relationship of the several cams will be maintained. With be observed that a ?nel transverse shaft 67 is rotatably the establishment of the described condition of the parts, supported by the housing and that a follower 68, prefera then selected cams 60 will individually rock follower 68. bly in the form of a rod, is provided which overlies the This movement will be transmitted by shaft 67 to crank entire bank of cam assemblies driven by rotation of shaft 72 and thus to the inner end of link 43, which will be 63. This rod is mounted by arms 69 carried by shaft shifted toward and away from pivot 49. 67. The follower thus provided is urged in the direction Accordingly, instead of that link being simply recip of the cam peripheries by securing an arm 70 against rocated merely in a manner corresponding to the contours movement with respect to shaft 67 and connecting to of eccentric 47, a modulation and variation of such shift that arm one end of a spring 71, the opposite end of ing will occur ‘as determined, by the cam and rest portions which is secured to a part ?xed with respect to the hous of operating unit 60 as superimposed upon the actions ing. By this structure it is obvious that the follower and movements created by eccentric 47. Thus, a desired shifts toward and away from the axis of shaft 63 and is stitch pattern is produced. As will be appreciated, by not capable of moving axially of that shaft or shaft 67. manual adjustment of knob 41, the characteristics of The cams 60 being ‘maintained against sidewise move 65 this pattern may be altered. In other words, by shift ments with respect to arms 56 and the latter being main ing the inner end of link 43 upwardly, away from the piv tained by their coupling with shaft 55 against axial move ot 49, that link will still receive the combined impulses ments with respect to that shaft, it is apparent that these and movements transmitted to it by eccentric 47 and the cams will maintain ?xed stations as they are rotated by cam 60 which has been selected, but the pattern will have the turning of shatf 63. 70 a broader scope. Conversely, by moving the link to With a view to having the movements of link 43 re wards pivot 49, the scope of the pattern will be diminished spond to the driving forces exerted not alone by eccentric as that link moves downwardly under the in?uence of 47 but also by the operating earns, a coupling structure is spring 82 or otherwise. employed. That structure conveniently includes an arm 72 affixed to shaft 67 and carrying a pin 73. This pin 75 The arrangement of apparatus may be modi?ed so 3,053,207 5 6 ercised by actuation of knob 41 or its equivalent. These tionally, in lieu of spring 82, a spring 1419 may be em ployed which has its free end connected to link 43. This assures that follower 88 will constantly be urged toward three controls will involve the cam or eccentric 47 and a grouping of mechanism such as is shown in FIG. 1 control cam 87. that the lateral movements of the needle bar are gov erned by three controls, in addition to any control ex to modify and amplify the resultant movements of link 43 as afore described. In addition, a substantial dupli cation of the mechanism as generally shown in FIG. 1 a position at which it engages the periphery of a selected As will be understood, in connection with a mechanism of the type shown in FIG. ‘5, a turning of shaft 83 will serve to lift a selected cam 87 to a position where it co operates with the follower 88. Therefore, as the mecha will be present. This ‘duplication will control the posi tion of the needle, in other Words, the de?nite shifting 10 nism operates, that follower will be rocked to correspond ingly move the inner end of link 43 in the manner here and maintaining of the needle bar for desired time in tofore ‘described, and thus control the lateral movements tervals in positions at which the needle will stitch along a given line or else to the left or right of that line. Such an arrangement of mechanism has been shown in FIG. 5. of the needle bar so that a pattern will be produced by the combined action of the selected pattern cam and eccen In that view, the numeral 42 again indicates a pattern 15 tric 47. ‘Simultaneously with this operation of the mech anism, follower 93 will be rocked to transmit move dial. This dial is secured against movement with respect ments to shaft 67. That shaft, through arm 105, will to a shaft 83 corresponding to shaft 53 as previously de control the position of the needle by transmitting move scribed. =In common with the previous illustration, this ments to link 43 through pivot 106 and member 48. shaft mounts a group of lifter selector cams in the form of elements 84, each formed with projections 85. These 20 Therefore, the resultant pattern will also include factors as controlled by one of the cams 94. The other parts will cooperate with pattern cam lifters embracing arms 86 mounted solely for rotation with respect to a shaft 87 '. The latter corresponds to shaft 55 as previously described. These arms will also have follower portions to cooperate with the projections 85 of elements 84 and will mount earns 87 ‘corresponding to the cam-s 60; one of those cams 87 being shiftable to an elevated position to co operate with a follower bar 88 mounted to oscillate shaft 89. That shaft will also carry a crank 98 operatively coupled to a bell crank 91 in turn connected to link 43 in the same manner as described in connection with FIG. 1. It will be observed that shaft 89 does not extend across the entire housing. Rather, in FIG. 5, this shaft of the machine as heretofore described may all be pres ent, so that a competent operator will be able to produce simple or involved stitch patterns precisely as desired. Attention is now again invited to FIG. 4 and especially to the ‘detailed operating mechanism controlling the func tioning of the stitch-forming apparatus. ‘It will be pri marily seen that the mechanism as illustrated in FIG. 5, involving the needle or bight control and the position con trolS, ‘has been illustrated. For this purpose, the same reference numerals as designated the parts in FIG. 5 have been employed in connection with corresponding parts terminates substantially midway of that housing. In line in FIG. 4. In addition, there is shown in FIG. 5 in the assembly a further group of control cams. These serve with that shaft is a second shaft 91" which by means of to govern the operation of the feed dog 26. ‘According. crank 92 mounts a follower 93 common to a group of cams 94. rllhose cams correspond to and are preferably of the same general type as cams 87 and the cams 60 as stitches or short stitches, together with stitches of inter mediate lengths. Also, it may serve to feed the material illustrated in FIG. 3. Also, they are mounted on arms 95 corresponding to the cam lifter arms 86 and 56. Arms 95 are mounted on shaft 87' and have follower portions 96 engageable with projections 97 forming parts of each of a group of selector elements 98. Those elements ly, the latter may, under this control, produce long being worked on in either a forward or reverse direction. Thus, in FIG. 4 a third group of lifting selector cams 107 is carried by shaft 83. These cams or elements cooperate with arms corresponding to arms 56, 86 and 95 in order to selectively raise one of those arms and the cam 110 carried thereby. A follower 111, preferably elements 84 and 53. At this time it is to be noted that 45 in the form of a bar, overlies the cams 110‘ of the third group. As in the prior structure, the follower and cams in FIG. 5 merely four elements, arms and control cams are secured against axial movements with respect to each have been shown in each of the two groups illustrated. other, and the cams are driven by a pinion shaft 63 or This has been done with a View to avoiding confusing its equivalent, that shaft being common to all three complications of the drawings. As will be understood, a greater or lesser number of control cams, together with 50 groups of cams and maintaining the timed relationship of all groups as well as the cams individual to each the necessary associated mechanism, might be included group. Follower 111 is supported by arms, one of in each group; the same being true of the structure here which, as at 112, is in the form of a bell crank. These inafter described in connection with FIG. 4. function as lifter selector cams in the same manner as In any event, shaft 91’ has connected to it an arm 99. arms are rockable around the axis of a supporting shaft This arm, by means of a pin and slot connection 100, 55 113. The second arm of bell crank 112 is pivotally con nected to one end of a link 114. The opposite end of serves to rock a bell crank lever 101 around its point of that link is also pivotally connected to an arm 115 pivotal mounting 102 as shaft 91 oscillates. The second carried by a shaft 116 rotatably mounted with respect arm of the bell crank lever is connected conveniently by The to and preferably extending transversely of the machine latter is secured to a shaft corresponding precisely to housing, as shown. Shaft 116 also carries an arm 117, which by means of a rod or link 118 is connected to the a pin and slot connection 103 with an arm 104. shaft 67. This shaft carries an arm or crank 105 to stitch length and reverse control lever 40. The parts are normally maintained in a predetermined position This connection is provided in lieu of the pivot 49 in where a forward feed of the material being worked upon FIG. 1. Also, in common with the previously described structure, the main drive shaft 14, by means of suitable 65 results in a predetermined stitch length being achieved. which a member 48 is pivotally connected as at 106. gearing 45 and 46, serves to rotate the eccentric or cam 47 controlling the movements of member 48; a block 51 As will be understood, with a cam 11% of the third group having been selected and [raised to elevated posi tion by the proper element 107, shaft ‘63 will cause the being slidably con?ned for movement longitudinally of periphery of that cam to traverse follower 111, thereby member 48 and serving by means of a pin 32 to connect the inner end of link 43 with the assembly. The outer 70 swinging the latter and rocking bell crank 112, link 114, end of arm 104 has connected to it the free end of a shaft 116 and arm 117. Follower 111 will ‘be main tained in operative association with the selected control cam by the tension exerted through spring 119 acting movement with respect to the casing. This spring assures back through the linkage through bell crank 112. ‘In that follower 93 will constantly be urged into engagement with the periphery of the selected control cam 94. Addi 75 any event, as rod or link 118 is reciprocated through spring 108, the opposite end of which is secured against 3,053,207 this cooperation of parts, control 40 will be shifted. Initial shifting will result in the length of the stitches produced being diminished, in that feed dog 26 will feed '8 necting structure between the follower of the latter as sembly and said needle bar for displacing the latter to either side of such point. the material at a lesser rate of speed. By moving the 3. In a sewing machine as de?ned in claim 2, a mecha parts to a further position, feed dog 26 may become Cl nism for feeding material to be stitched past said needle inoperative to shift the material, incident to the move— bar, means forming a part of said mechanism for vary ment occurring on the part of pitman 33. If control ing the amount of such feed and the direction thereof, portion 40 is moved beyond this position, then a reverse a third assembly also forming a part of said machine feed of the material will occur. and corresponding to the assembly as de?ned in claim ‘It is preferred that the ratio of drive between gears 10 1 and a connecting structure between the follower of 45 and 46 be such that for each two revolutions of shaft that third assembly and the feeding mechanism for op 14, eccentric 47 will make one revolution. The ratio erating the latter. of drive ‘between worm 63 and worm gear 66 will depend upon the contouring of the several cams which are driven 4. In a sewing machine as de?ned in claim 2, a shaft common to both assemblies and said shaft mounting the by the pinion shaft. On the pattern dial 42 shown in 15 selector cams of both such assemblies. FIG. 4, various stitches have been illustrated. By way 5. In a sewing machine as de?ned in claim 3, a pinion of example, the one shown at A is achieved solely by shaft common to all said assemblies and engaging the the cams of group 96. The pattern at B follows as a con ring gears forming a part of the pattern cams thereof. sequence of the response of the mechanism to selected 6. A sewing machine to produce ornamental stitches cams of groups 87 and 94. The pattern under C re including in combination a needle bar, means for support sults from the control exercised by individual cams of ing the same for reciprocating and lateral movements, groups 87. Again, the pattern under D is caused by drive means operatively connected to such bar for caus the action of the individual cams in groups 87 and $4, ing reciprocation of the latter, a rotatable cam shaft, similarly to the pattern under B. The stitch pattern indi means operatively connecting said shaft to be rotated by cated at E results from the combined response of se said drive means, a plurality of cams supported to rotate lected cams of groups 94 ‘and 110. A stitch of the type with said shaft, a single follower common to said cams indicated at F is ‘achieved by control of the mechanism and extending parallel to said cam shaft, means securing by individual cams of groups 87, 94 and 110. The G said cams and follower against axial movement one with type stitch results solely from the operation of a cam respect to the other, means connecting said follower with of the 87 group, and ‘a stitch as at H is produced by said needle bar to cause lateral movements of the latter the operation of a cam of the same group. The dial in response to movements of said follower, and manually will also preferably as shown include a suitable symbol controlled means for selectively disposing said cams and or legend, which, if adjusted to proper position by ro follower in positions at which an elected one of said tation of the dial, will result in no cam of any of the cams causes movements of said follower, said manually three groups being lifted to a position at which it co 35 controlled means including a further rotatable shaft, rock operates with its follower. of course, under all fore going conditions the eccentric 47 will produce the basic ingly mounted arms to cause movements of a cam and bar with said drive shaft to reciprocate as said shaft ro tates, movable means connected to said supporting means for effecting lateral movements of the latter and bar, an in combination, a movably mounted needle bar, means for reciprocating said bar, a link connected to said bar for follower such that they shift relative to each other to reciprocation of link 43. Also under all these condi cause the surface of the cam to operatively engage the tions, knob 4-1 may be adjusted to further modify the follower, means carried by said further shaft and con characteristics of the resultant stitch. nected with said arms for causing such shifting, said Thus, among others, the several objects of the inven arms being connected one to each of said cams, the latter tion as speci?cally aforenoted are achieved. Obviously, being each formed with an opening of a diameter greater numerous changes in construction and rearrangements than that of said cam shaft and said cam shaft extending of the parts may be resorted to without departing from through and drivingly contacting the edges of said open the spirit of the invention as de?ned by the claims. ings to cause rotation‘ of said cams. I claim: 7. In a sewing machine as de?ned in claim 6, said cam 45 1. A sewing machine to produce ornamental stitches shaft being formed with axially extending teeth and each including in combination a frame, a rotatable drive shaft opening of said cams being formed with a series of in mounted thereby, a needle bar, means for supporting wardly extending interengaging teeth de?ning the edges the bar for both lateral and reciprocating movements of the openings. with respect to said frame, means for connecting said 50 8. In a sewing machine to produce ornamental stitches, operating ‘assembly comprising a plurality of selector moving the same laterally, a plurality of cams, axially disposed with respect to each other, means for rotating earns, a manually rotatable shaft mounting the same and 55 said cams, supporting means to prevent axial movements supported by said frame, arms mounted by said frame of said cams, means operatively connected to said cams to be engaged by said cams and rocked thereby, aper and bar reciprocating means for rotating said cams in tured pattern cams rotatably supported one by each of timed relationship to the reciprocations of said bar, a said arms, ring gears de?ning the edges of such aper single follower extending across said cams, means sup tures, a pinion shaft connected to be rotated by said 60 porting said follower solely for movements toward and drive shaft and extending through the ‘apertures of said away from the cams, selective engaging means connect pattern cams in engagement with the gears to thereby ing said follower solely with one of said cams, said se rotate such pattern cams, a single elongated and movable lective engaging means comprising a manually rotatable follower disposed adjacent said pattern cams and moved shaft, selector cams secured to said shaft, rockingly by the latter as ‘an arm mounting a pattern cam is rocked 65 mounted arms each rotatably supporting one of said ?rst to shift that cam into operating engagement with said named cams, and follower portions forming parts of said follower and a connecting structure between and trans arms to be engaged by said selector cams and thus rock mitting movements of the follower to the supporting means of the needle bar to impart to the latter ‘lateral an arm to move its supported cam into cooperating en gagement with said follower. 70 9. In a sewing machine to produce ornamental stitches, 2. In a sewing machine as de?ned in claim 1, a mecha in combination, a movably mounted needle bar, means nism forming a part thereof ‘for displacing the stitching for reciprocating said bar, a link connected to said bar zone of the bar to one and the other side of a given for moving the same laterally, a plurality of cams, axially point, a second operating assembly as de?ned in claim disposed with respect to each other, means for rotating 1 forming a Part of said machine and a second con 75 said cams, supporting means to prevent axial movements movements. 3,053,207 of said cams, means operatively connected to said cams and bar reciprocating means for rotating said cams in References Cited in the ?le of this patent UNITED STATES PATENTS timed relationship to the reciplrocations of said bar, a , . single follower extending across said cams, means sup- 2109201 H111, ------------- ‘~'*“" July 23’ 192w porting away from said the follower cams,solely meansforconnecting movementssaid toward follower and 5 z’gds’ng ia‘e?llllnk Bo Sonet"""""""""" a1 ------------"S "gatetc'zz’ ;’ 1959 solely with one of said cams, the means for rotating said 2’938’970 Como “T """""""" " 6p ' . . . . . cams comprising a rotatable pinion shaft operatlvely con , , nected for movement with said bar as it reciprocates, said ’ onstantme ___________ __ May 31, 1960 FOREIGN PATENTS cams being formed with openings of a diameter larger 10 than that of said pinion shaft and gear teeth extending 515,090 1,139,759 Italy ________________ __ Feb. 12, 1955 France _______________ __ Feb. 18, 1957 inwardly from said openings and engaged by the teeth 1,153,315‘ France ______________ __ Sept. 30, 1957 792,784 Great Britain __________ __ Apr. 2, 1958 of said pinion shaft.