US2854935A - Automatic shifting mechanism for sewing machines adapted for embroidery work - Google Patents

Automatic shifting mechanism for sewing machines adapted for embroidery work Download PDF

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Publication number
US2854935A
US2854935A US545482A US54548255A US2854935A US 2854935 A US2854935 A US 2854935A US 545482 A US545482 A US 545482A US 54548255 A US54548255 A US 54548255A US 2854935 A US2854935 A US 2854935A
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cam
stitch
lever
shaft
shifting
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US545482A
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English (en)
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Benink Christian Josef Marines
Bungert Heinrich
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GM Pfaff AG
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GM Pfaff AG
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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B19/00—Programme-controlled sewing machines

Definitions

  • This invention relates to a shifting and guiding mechanism for zig zag sewing machines having a control'device which permits the adjustment of the stitch location and of the stitch width separately as well as simultaneously for the purpose of producing a plurality of diierent stitch designs from a design disk.
  • the design dial is driven by the motor by way of a step cone and a worm drive mounted in the standard of the machine.
  • the guiding impulses derived from the dial disk are transferred to a suspended arm rotatably mounted in the machine arm by means of an oscillating lever and an adjustable transmission bar, and from there the impulses may be applied to the adjustment levers for the stitch location and the width by means of a manually operated lever connection which is likewise provided externally of the machine arm.
  • step switching mechanisms have been proposed in connection with fancy stitch sewing machines for producing star patterns where the length of the steps is made adjustable by following certain procedure.
  • the problem underlying the invention is to eliminate the shortcomings of the known arrangements and it is one object of the invention to provide a shifting and guiding mechanism which makes it possible with simple structural means to provide for continuous or stepless adjustment even during the running of the machine.
  • the invention solves this problem by means of engageable and disengageable connections between the transfer lever for the guiding impulses and the adjusting levers for the stitch location and the stitch width and furthermore by means of a selector switch for engaging and disengaging the connections and by a means for the continuously ad- 2,854,935 Patented Oct. 7, 1958 2 justable variation of the advancing length of the drive for the control mechanism.
  • the engaging and disengaging of the shifting bars can be effected by a cam shaft operated by the selector switch, which carries additional cams besides the cams associated with the shifting bars, in particular one cam which, for a specific position of the selector switch, keeps the transmission system for the control impulses out of engagement with the control mechanism, and one cam which, in response to predetermined positions of the selector switch, operates the stitch location control.
  • the particular shifting positions of the selector switch can be secured by a toothed rack.
  • a still further object of the invention provides for a possibility of inlluencing the stitch location adjustment by means of the selector switch by way of a double armed lever mounted rotatably under control of a spring on the outside of the machine arm, one arm of which lever extends into the interior of the machine arm and rests with its angular end against the cam of the cam shaft while the other arm extends downwardly on the outside of the machine arm and is provided with teeth forming a rack which, when the stitch location control is in operative position, are in engagement with the point of the adjusting lever for the stitch location.
  • a further object of the invention is to provide a cone shaped cam on the drive shaft which is operatively connected to a step by step advancing mechanism for operating the control mechanism by way of an adjustably mounted double armed lever and a push rod.
  • the pivot of the double armed lever may be mounted on a slide member which is slidably mounted on a supporting plate secured to the machine arm and adjustable by means of a switch provided in the cover of the machine.
  • Fig. l is a perspective front view of a sewing machine equipped with the mechanism in accordance with the invention
  • Fig. 2 is a further perspective view looking down on the machine with the cover removed;
  • Fig. 3 is a perspective view of a portion of the machine with the cover removed and of the raised mechanism from the bottom;
  • Fig. 4 is a partial perspective and exploded view of the machine with the cover removed and the mechanism raised with the dismounted coupling bars without the springs at the top;
  • Fig. 5 is a partial view of the machine arm from the front with the cover removed, with the shifting bars and springs, the transfer lever, the earn shaft without bearing means and selector switch, the stitch adjuster without adjusting knob -or indicating dial;
  • Fig. 8 is the cam shaft with the bearing member and the selector switch
  • Fig. 9 is a side view, partly in section, showing the switching device installed in a zig zag type sewing machine for cooperation with the conventional type of needle bar oscillator mechanism;
  • the shifting or switching mechanism is mounted on the arm 1 of the machine beneath the cover 2 which is provided with a ilap 3 and bores for the shifting shafts of the mechanism.
  • a supporting plate 4 is provided with bores 5 for screws 6 by means of which it is secured in the threaded bores 7 of the machine arm 1.
  • a cam disk assembly 8 rotatably mounted on the supporting plate 4 is moved by a continuously (stepless) adjustable advancing device 9 which is connected for operation by way of variable cam drive means including a pusher bar 10 and adouble armed lever 11 to a conical cam 13 secured to the drive shaft 12 in the machine arm.
  • the device 9 is preferably of a conventional ratchet and pawl, or wedge, or one way clutch type which, when rotate-d in one direction rotates the shaft of the cam assembly, while on the return movement it slides over its engagement with the cam assembly so that the cam assembly is only moved in one direction.
  • the double armed lever 11 is spring biased by means of a tension spring 14 which is hooked at one end to said lever and at the other end to the supporting plate 4 by means of a screw 15, which holds it with its free arm 17 which is provided with a roller 16 in uninterrupted operative engagement with the cam 13.
  • the lever 11 is rotatably mounted by means of its hub 18 of tubular shape (Fig. 7) upon a shaft 19 and is retained by a fastening ring 20.
  • the shaft 19 is mounted upon a slide 21 which is movable parallel to the drive shaft 12 and which is held and guided on the supporting plate 4 by means of collar screws 22, 23 which extend through longitudinal slots 24, 25.
  • the movement of the slide 21 is limited in the direction toward the head of the machine by means of a guide member 28 mounted on the supporting plate 4 by means of screws 27 in a recess l26 of the slide 21.
  • a pin 29 projects through longitudinal slot 25 in the slide 21 and serves as an abutment for a lug 30 on the pusher bar 10 in the inoperative position of the slide 21.
  • a pin 33 secured to an angular lever 32 engages a recess 31 in the slide 21.
  • the angular lever 32 is rotatable around a pivot shaft 34 and is provided with a slot 35 which is engaged by a pin 36 on a collar 39 mounted upon a shifting shaft 37 to which it is secured by means of a set screw 38.
  • the shifting shaft 37 projects through the cover 2 and carries a manipulating knob 40 at its upper free end which has curved recesses 41 for seating a spring biased ball (not shown) which is embedded ⁇ in the top surface of cover 2 under knob 40.
  • the supporting plate 4 is provided with a correspondingly large longitudinal aperture 42 so that the pin 33 can readily reach through for operating the slide 21.
  • An angular lever 44 pivoted on a bolt 43 (Figs. 2, 4) carries at its vertex a rotatably mounted shifting start 46 provided with a locking means 45 and having feeler ngers 47 for selecting a cam disk from the nest of cam disks.
  • a lever 49 is linked to the free end of the angular lever 44 by means of a collar screw 48, which lever is provided with slots 50 longitudinally thereof for the adjustable connection with a lever 51 by means of screws 52.
  • Lever 51 is pivotally connected at its other end by means of a collar screw 53 to a transfer lever 55 pivotally supported on a threaded bolt 54.
  • the coupling bars 77, 78, 79 are movably connected to the shifting levers of the machine by means of eccentric collar bolts 83, 84, 85.
  • the collar bolt 83 carrying the coupling bar 77 is secured in a bore 86 in an extension lever 87 by means of a set screw 88.
  • the extension lever 87 is secured by means of a screw 89 to the stitch location adjusting lever 90 which at its lower end rotatably receives the shaft 92 of the stitch adjuster or locater in a bearing 91.
  • a bearing member 1'01 (Figs. 3 and 8) is mounted upon the supporting plate 4 by means of screws 102 and accommodates between its upwardly extending cheeks 103, 104 a cam shaft 105, which is disposed transversely of and beneath the coupling bars 77, 78, 79.
  • a toothed gear 106 is disposed upon the end of the cam shaft 105 which extends through the cheek 104 which meshes with another toothed gear 107 mounted by means of a bolt 108 upon cheek 104.
  • the hub 109 of gear 107 supports a selector switch 110 which is provided on its front face with markings 111 and on the rear surface with corresponding indentations or cavities 112 for seating a spring biased ball 112a mounted in the hub 113 of the gear 106.
  • Cams 114, 115, 116 associated with coupling bars 77, 78, 79 are mounted von the cam shaft 105 which, in corresponding positions of the selector switch 110, disengage the coupling bars 77, 78, 79 from the yokes 74, 75, 76 of the supports 65, 66, 67.
  • cam shaft 105 which is furthermore provided upon the cam shaft a cam 117 which in the position of disengagement of the selector switch engages a lug 118 of the transfer lever 55 and removes the transfer system for the control or shifting movements from engagement with the nest of cam disks 8, and also a cam 119 which in predetermined positions of the selector switch 110 operates a double armed lever 120 (Fig. 5) and thus shifts the stitch location adjustment.
  • One arm 121 of the double armed lever 120 is provided with recesses 122 while the other arm 123 bulges out and extends at an angle at the end in the direction of the balance wheel.
  • On the outside of the arm 1 lever 120 is rotatably mounted by means of a collar screw 124 and extends with its curved arm 123 through an aperture 125 to the inside of housing arm 1 to cam 119 on the cam shaft 105 where it is held in continuous engagement by a tension spring 126.
  • Spring 126 is hooked onto arm 123 at one end and at the other end onto a pin 127 on the machine housing arm.
  • the other arm 121 of the double armed lever which extends downwardly is adapted to receive in one of its recesses 122 the edge 128 of the stitch location adjusting lever 129 which, in a known manner, is rotatably and resiliently disposed in the bearing 91 of the stitch location adjusting lever 90 as shown in Fig. 5.
  • the stitch location adjusting lever 90 and the angular lever 95 are pivotally supported in the machine arm 1 upon a stud 141.
  • an operating knob 143 is secured by means of screw 142 (Fig. 3), which serves for manually setting the width of the stitch.
  • an indicator dial 144 is provided for indicating the adjusted stitch width. This dial moves together with knob 143 and the stitch location lever 129 as they are turned to change the position of shaft 92, but retains its adjusted position relative to the machine. Furthermore, pointer 145 is formed on the dial 144 which cooperates with the markings 146 provided upon machine arm 1 to indicate the stitch location.
  • the stitch adjuster guide member 147 (Fig. 9) is mounted in which is guided the sliding member 149 which is rotatably mounted upon the cam fork rod 148.
  • the fork 150 of the cam fork rod 148 receives the stitch locating cam 151 which is driven by way of the bevel gears 152 and 153 from the drive shaft 12.
  • the cam 151 and the bevel gear wheel 153 are rotatably disposed on a stud (not shown) which is secured in the machine arm 1 at the rear of the machine housing.
  • the cam fork rod 148 is connected by means of a movable joint 154 to the needle bar oscillator 156 which is pivotally supported at bearing stud 155.
  • the needle bar oscillator 156 receives the needle bar 157 for reciprocating movement, which in turn is in operative engagement with the bell crank lever 159 secured to the housing arm 12.
  • Cam 151 effects one half revolution in response to one up and down movement of needle bar 157, and the strokes of the cam 151 cause cam fork rod 148 to oscillate about the bolt of the joint 154.
  • Adjusting the stitch location setting lever 129 to the center stitch position for which the edge 128 of the stitch location lever 129 is 'seated in the center tooth of the three teeth formed at the end of lever 120 (Fig. 5) and setting the switch knob 143 to zero causes the cam fork rod 14S in response to the rotary movement of the cam 151 to move pivotally about the pivot bolt 154 of the vertically disposed needle bar oscillator 156, because the guide member 147 is disposed in the direction of the rotary movement of the sliding member 149, The needle bar oscillator 156 thus edects no oscillatory movement with this adjustment so that the machine is set to effect straight forward stitching.
  • Rotating the switch knob 143 from zero position to the left causes the stitch locator guide member 147 to turn in the counterclockwise direction so that the eccentric fork rod 148 is imparted a forward movement in addition to the oscillatory movement around bolt 154 which causes the needle bar oscillator 156 to pendulate about its center position.
  • the triangular shape of the cam 151 causes the fork rod 148 to swing laterally only at predetermined partial sections of its course of rotation while the cam 151 is positioned in such a manner that the lateral swinging movement of the fork rod 143 takes place only when the needle bar 157 is in the area of its highest position.
  • the stitch location setting or adjusting is eected by means of the stitch locating lever 129.
  • the stitch location lever 129 is brought to be seated in the upper groove or tooth of lever 120.
  • the guide member 147 is moved about bolt 141 which, in turn, causes the fork rod 148 and thus the needle bar 157 to be displaced to the extreme left position.
  • the sliding member 149 on fork rod 148 arrives in the lower part of the guide member 147 so that rotation of the knob 143 from the zero position causes the zig zag movements of the needle bar 157 to start always from the extreme left location.
  • the selector switch 118 is turned until the digit 0 is at the top as shown in Figs. 1 and 4.
  • the cam 117 on cam shaft engages the lug 11S of the transfer lever 55 and restrains the shifting star 46 of the transfer system which is mounted on the shifting lever 44 of the transfer system from engaging the cam disk assembly or nest 8.
  • the cam 119 on cam shaft 165 depresses arm 123 of the double armed lever 128* against the pressure of spring 126 so that the teeth 122 on its arm 121 are moved into engagement with the edge 128 of the stitch location adjustment lever 129.
  • the stitch location adjustment is set.
  • the coupling bars 77, '78, 79 are raised by their respective cams 114, 115, 116 on cam shaft 105 and are, therefore, disengaged from the yokes 74, 75, 76 or the supports 65, 66, 67.
  • the two coupling bars 77 and 79 are raised by the cams 114 and 116 on cam shaft 105, respectively, associated therewith, while the coupling bar 78 is released from its associated cam 115, so that it is enabled under the pressure of the overlying spring 131 to seat in the yoke 75 of the support 66 by means of its notch or recess 81.
  • the connection of the transfer lever 55 with the adjusting levers for the stitch width is established.
  • the distance of the support 66 mounted upon the transfer lever 55 from its axis of rotation is so chosen that only half of the stitch width is controlled.
  • the stitch location adjustment remains in operative position as in the setting of the selector switch 110 due to the conformation of the cam 119, so that it is possible, in addition, to adjust also the stitch location by means of the stitch location adjustment lever 129.
  • the coupling bar 77 engages the yoke 74 of the support 65 upon release by the cam 114 and establishes the connection with the stitch location adjusting lever 90. Accordingly the stitch location is controlled in addition to one half of the stitch width. For that reason the cam 119 in this position releases the double armed lever 120 again which under the influence of spring 126 disconnects the stitch location adjustment while the notches 122 are withdrawn from the reach of the edge 128 of the stitch location adjustment lever 129.
  • the coupling bar 77 is again raised by cam 114 while the cam 116 now frees the coupling bar 79 which in a similar manner engages the yoke 76 of support 67.
  • the coupling bar 79 is also connected with the adjusting levers for the stitch width so that only the stitch width is controlled.
  • the arrangement of the support 67 upon the transfer lever 55 is made in such a manner that now the stitch width is fully guided.
  • the stitch location adpjustment means is reconnected so that it is possible to effect the control of the stitch width from the stitch location left, right or center.
  • the adjustable lever connection 49, 51 affords the possibility of determining the swinging range of the transfer lever 55. It is furthermore possible-upon releasing screws S8, 96, 97 by correspondingly rotating the eccentric bolts 83, 84, 85 to effect an accurate adjustment of the coupling bars 77, 78, 79.
  • Shifting and guiding mechanism for a sewing machine of the zig-zag type having a drive shaft and a needle bar oscillator operatively connected to said drive shaft;
  • Said mechanism including a conically shaped cam mounted on said drive shaft a guiding device having a motion input portion, and a variable cam and follower means, variable cam drive means in operative engagement with said conically shaped cam, and impulse transfer means connected to said follower means, a stitch width adjusting means and a stitch location adjusting means operatively connected to said impulse transfer means, said cam follower means being movable in steps to transmit control impulses by way of said impulse transfer means and said stitch location adjusting means to the needle bar oscillator for producing embroidered designs, and said mechanism including selectively operable coupling bars disposed between said impulse transfer means and said stitch width and stitch location adjusting means, a selector switch having actuating members operative to shift selected ones of said coupling bars into and out of engagement with said impulse transfer means, and variable means operatively associated with said guiding device including a manipul
  • Shifting and guiding mechanism for a sewing machine of the zig-zag type having a drive shaft and a needle bar oscillator operatively connected to said drive shaft; said mechanism including a conically shaped cam mounted on said drive shaft a guiding device having a motion input portion, and a variable cam and follower means, variable cam drive means in operative engagement with said conically shaped cam, and impulse transfer means connected to said follower means, a stitch width adjusting means and a stitch location adjusting means operatively connected to said impulse transfer means, said cam and follower means being movable in steps to transmit control impulses by w-ay of said impulse transfer means and said stitch location adjusting means to the needle bar oscillator for producing embroidered designs, and said mechanism including selectively operable coupling bars disposed between said impulse transfer means and said stitch width and stitch location adjusting means, a selector switch having actuating members operative to shift selected ones of said coupling bars into and out of engagement with said impulse transfer means, and variable means operatively associated with said guiding device including
  • Shifting and guiding mechanism for a sewing machine of the zig-zag type having a drive shaft and a needle bar oscillator operatively connected to said drive shaft; said mechanism including a conically shaped cam mounted on said drive shaft a guiding device having a motion input portion, and a variable cam and follower means, variable cam drive means in operative engagement with said conically shaped cam, and impulse transfer means connected to said follower means, va stitch Width adjusting means and a stitch location adjusting means operatively connected to said impulse transfer means, said cam and follower means being movable in steps to transmit control impulses by way of said impulse transfer means and said stitch location adjusting means to the needle bar oscillator for producing embroidered designs, and said mechanism including selectively operable coupling bars disposed between said impulse transfer means and said stitch width and stitch location adjusting means, a selector switch having actuating members operative to shift selected ones of said coupling bars into and out of engagement with said impulse transfer means, and variable means operatively associated with said guiding device includinU a
  • Shifting and guiding mechanism for a sewing machine of the zig-zag type having a drive shaft and a needle bar oscillator operatively connected to said drive shaft; said mechanism including la conically shaped cam mounted on said drive shaft a guiding device having a motion input portion, and a variable cam and follower means, variable cam drive means in operative engagement with said conically shaped cam, and impulse transfer means connected to said follower means, a stitch width adjusting means and a ystitch location adjusting means operatively connected to said impulse transfer means, said cam and follower means being movable in steps to transmit control impulses by way of said impulse transfer means and said stitch location adjusting means to the needle bar oscillator for producing embroidered designs, and said mechanism including selectively operable coupling bars disposed between said irnpulse transfer means and said stitch width and stitch location adjusting means, a selector switch having actuatling members operative to shift selected ones of said coupling bars into and out of engagement with said impulse transfer means, and variable means operatively associated with
  • Shifting and guiding mechanism for a sewing machine of the zig-zag type having a drive shaft and a needle bar oscillator operatively connected to said drive shaft; said mechanism including a conically shaped cam mounted on said drive shaft a guiding device having a motion input portion, and a variable cam and follower means, variable cam drive means in operative engage ment with said conically shaped cam, and impulse transfer means connected to said follower means, a stitch width adjusting means and a stitch location adjusting means operatively connected to said impulse transfer means, said cam and follower means being movable in steps to transmit control impulses by way of said impulse transfer means and said stitch location adjusting means to the needle bar oscillator for producing embroidered designs, and said mechanism including selectively operable coupling bars disposed between said impulse transfier means and said stitch width and stitch location adjusting means, a selector switch having actuating members operative to shift selected ones of said coupling bars into and out of engagement with said impulse transfer means, and variable means operatively associated with said guiding device including
  • Shifting and guiding mechanism for a sewing machine of the zig-zag type having a drive shaft and a needle bar oscillator operatively connected to saiddrive shaft, said mechanism including a conically shaped cam mounted on said drive shaft a guiding device having a motion input portion, and a variable cam and follower means, variable cam drive means in operative engagement with said conically shaped cam, and impulse transfer means connected to said follower means, a stitch width adjusting means and a stitch location adjusting means operatively connected to said impulse transfer means, said cam and follower means being movable in steps to transmit control impulses by way of said impulse transfer means and said stitch location adjusting means to the needle bar oscillator for producing embroidered designs, and said mechanism including selectively operable coupling bars disposed between said impulse transfer means and said stitch width and stitch location adjusting means, a selector switch having actuating members operative to shift selected ones of said coupling bars into and out of engagement with said impulse transfer means, and variable means operatively associated with said guiding device including a manipulating member
  • Shifting mechanism in accordance with claim 8 wherein a slide is mounted upon a supporting plate secured to the machine housing arm and supporting said stud and a switch is mounted upon the cover of the machine including a manipulating device for moving said slide.
  • said manipulating device comprises a shaft and a bell crank lever having a member in operative engagement with said slide.
  • Shifting mechanism in accordance with claim 8 including a pin on said ysupporting bar and a lug on said pusher bar for engagement by said pin in the position of said slide where said roller is disengaged from said conically shaped cam.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Rotary Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US545482A 1953-11-19 1955-11-07 Automatic shifting mechanism for sewing machines adapted for embroidery work Expired - Lifetime US2854935A (en)

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US762328XA 1953-11-19 1953-11-19
DE336252X 1954-11-09

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US2854935A true US2854935A (en) 1958-10-07

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BE (1) BE542467A (cs)
CH (1) CH336252A (cs)
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GB (2) GB762328A (cs)

Cited By (26)

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US2966868A (en) * 1954-06-18 1961-01-03 Anker Werke Ag Zigzag sewing machine
US3012442A (en) * 1958-07-15 1961-12-12 Grunke Erich Manually operable pattern selector device for an ornamental stitch sewing machine
US3025809A (en) * 1959-01-02 1962-03-20 Singer Mfg Co Automatic ornamental stitch sewing mechanisms
US3053207A (en) * 1959-10-01 1962-09-11 Nippon Sewing Machine Mfg Co L Sewing machine
US3053206A (en) * 1959-01-09 1962-09-11 Emil Forster Sewing machines having ornamental stitch devices
US3055324A (en) * 1956-06-18 1962-09-25 Anker Phoenix Nahmaschinen A G Zigzag sewing machine with automatic motif-frequency control
US3055325A (en) * 1957-02-26 1962-09-25 Nippon Sewing Machine Mfg Co L Sewing machine
US3064603A (en) * 1959-10-21 1962-11-20 Fuji Seimitsu Kogyo Kabushiki Speed-changing cam device for zigzag sewing machines
US3065716A (en) * 1958-10-21 1962-11-27 Vigorelli Luigi Design stitching sewing machine
US3067702A (en) * 1959-01-27 1962-12-11 Riccar Sewing Machine Co Ltd Automatic and hand-operated apparatus for use in rotary type zigzag sewing machines
US3073266A (en) * 1959-11-23 1963-01-15 Guide Anthony Spiral stitching attachment for sewing machines
US3081724A (en) * 1959-12-31 1963-03-19 Necchi Spa Zig-zag sewing machine
US3089444A (en) * 1954-11-30 1963-05-14 Forster Jakob Zig-zag sewing machines
US3108556A (en) * 1960-09-07 1963-10-29 Mefina Sa Zig-zag sewing machines
US3143985A (en) * 1958-03-19 1964-08-11 Pfaff Ag G M Ornamental seam devices for sewing machines
US3217677A (en) * 1958-10-20 1965-11-16 Janome Sewing Machine Co Ltd Ornamental stitch sewing machine
US3254618A (en) * 1959-02-02 1966-06-07 Janome Sewing Machine Co Ltd Buttonhole stitching control device
US3257980A (en) * 1955-10-29 1966-06-28 Brother Ind Ltd Cam selecting mechanism for sewing machines
US3807329A (en) * 1972-11-29 1974-04-30 Singer Co Integrated sewing machine controls
US3834332A (en) * 1971-06-28 1974-09-10 Meister Werke Gmbh Arrangement on a zig-zag or automatic sewing machine for the adjustment of the stitch position and width of the stitch
EP0009107A2 (de) * 1978-09-14 1980-04-02 Dorina Nähmaschinen GmbH Zickzacknähmaschine mit einer Einrichtung zum Herstellen von Ziernähten
US4385572A (en) * 1981-02-02 1983-05-31 Martin Redovian Drop-in pattern stitch assembly for a straight stitch sewing machine
CN105041605A (zh) * 2015-08-03 2015-11-11 中国石油大学(北京) 一种高粘油多泵站密闭管道输送系统
US20160273144A1 (en) * 2015-03-20 2016-09-22 Janome Sewing Machine Co., Ltd. Sewing Machine
USD836681S1 (en) * 2017-09-18 2018-12-25 Brother Industries, Ltd. Sewing machine
USD836680S1 (en) * 2017-09-18 2018-12-25 Brother Industries, Ltd. Sewing machine

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DE1219799B (de) * 1956-12-11 1966-06-23 Georg Wiggermann Aggregat von zwei zweiraedrigen Zahnradpumpen, deren spezifische Foerdermenge stufenlos regelbar ist
GB2282186B (en) * 1993-09-08 1997-09-24 Rolls Royce Plc Engine fuel metering system
DE4418680C2 (de) * 1994-05-28 1998-04-09 Mtu Muenchen Gmbh Brennstoffversorgungseinrichtung für ein Turbo-Strahltriebwerk mit Nachbrenner
FR3022951B1 (fr) * 2014-06-26 2020-01-24 Safran Aircraft Engines Pompe a deux etages, prevue notamment comme pompe principale d'alimentation d'un moteur d'avion en carburant

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US1338074A (en) * 1916-05-24 1920-04-27 Singer Mfg Co Embroidery-sewing machine
US2297197A (en) * 1938-05-31 1942-09-29 Bolter Wilhelm Zigzag sewing machine
US2713838A (en) * 1953-05-25 1955-07-26 Singer Mfg Co Needle-vibration controlling mechanisms for zigzag stitch sewing machines
US2755754A (en) * 1952-05-12 1956-07-24 Turissa Nachmaschinenfabrik A Sewing machine with zigzag arrangement

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Publication number Priority date Publication date Assignee Title
US1338074A (en) * 1916-05-24 1920-04-27 Singer Mfg Co Embroidery-sewing machine
US2297197A (en) * 1938-05-31 1942-09-29 Bolter Wilhelm Zigzag sewing machine
US2755754A (en) * 1952-05-12 1956-07-24 Turissa Nachmaschinenfabrik A Sewing machine with zigzag arrangement
US2713838A (en) * 1953-05-25 1955-07-26 Singer Mfg Co Needle-vibration controlling mechanisms for zigzag stitch sewing machines

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2966868A (en) * 1954-06-18 1961-01-03 Anker Werke Ag Zigzag sewing machine
US3089444A (en) * 1954-11-30 1963-05-14 Forster Jakob Zig-zag sewing machines
US3257980A (en) * 1955-10-29 1966-06-28 Brother Ind Ltd Cam selecting mechanism for sewing machines
US3055324A (en) * 1956-06-18 1962-09-25 Anker Phoenix Nahmaschinen A G Zigzag sewing machine with automatic motif-frequency control
US3055325A (en) * 1957-02-26 1962-09-25 Nippon Sewing Machine Mfg Co L Sewing machine
US3143985A (en) * 1958-03-19 1964-08-11 Pfaff Ag G M Ornamental seam devices for sewing machines
US3012442A (en) * 1958-07-15 1961-12-12 Grunke Erich Manually operable pattern selector device for an ornamental stitch sewing machine
US3217677A (en) * 1958-10-20 1965-11-16 Janome Sewing Machine Co Ltd Ornamental stitch sewing machine
US3065716A (en) * 1958-10-21 1962-11-27 Vigorelli Luigi Design stitching sewing machine
US3025809A (en) * 1959-01-02 1962-03-20 Singer Mfg Co Automatic ornamental stitch sewing mechanisms
US3053206A (en) * 1959-01-09 1962-09-11 Emil Forster Sewing machines having ornamental stitch devices
US3067702A (en) * 1959-01-27 1962-12-11 Riccar Sewing Machine Co Ltd Automatic and hand-operated apparatus for use in rotary type zigzag sewing machines
US3254618A (en) * 1959-02-02 1966-06-07 Janome Sewing Machine Co Ltd Buttonhole stitching control device
US3053207A (en) * 1959-10-01 1962-09-11 Nippon Sewing Machine Mfg Co L Sewing machine
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EP0009107A2 (de) * 1978-09-14 1980-04-02 Dorina Nähmaschinen GmbH Zickzacknähmaschine mit einer Einrichtung zum Herstellen von Ziernähten
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US10174449B2 (en) * 2015-03-20 2019-01-08 Janome Sewing Machine Co., Ltd. Sewing machine
CN105041605A (zh) * 2015-08-03 2015-11-11 中国石油大学(北京) 一种高粘油多泵站密闭管道输送系统
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Also Published As

Publication number Publication date
BE542467A (cs)
CH336252A (de) 1959-02-15
FR1137737A (fr) 1957-06-03
GB792328A (en) 1958-03-26
GB762328A (en) 1956-11-28

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