Abstract: A sewing machine is provided with a carrying handle movably received at the housing and connected with at least one thread guiding element. The thread guiding element is arranged so that the work to be performed on the sewing machine is favored by its position and access to the carrying handle is not hindered even in the threaded state. The thread guiding element is moved with the carrying handle by a drive mechanism associated with the carrying handle when the handle is moved from an inactive position in the housing to its carrying position the thread guiding element executes a relative movement thereto from its sewing position to its threading position.

Abstract: A sewing machine has a trimmer and a waste container for trimmed waste fed to it through a guide groove. The waste container that needs little space and also enlarges the workpiece support surface for the sewing material is designed and arranged so that the trimmed waste reaches it over short transport paths. For this purpose, a portion of the sewing machine includes the waste container located beside the trimmer and reaching directly to it, whose top is aligned with a base top plate covering the rest of the base of the sewing machine and together with it forms a support surface for the sewing material.

Abstract: A sewing machine housing includes a base to hold the machine's drive mechanism and a covering mounted on the base. To effect an easy alteration of the outer shape, the covering comprises a plurality of individual covering pieces with edge contours aligned with one another, the individual covering pieces being detachably connected to the base or to one another. In order to adapt to differently designed operating means in a given area of the base to be covered, a plurality of individual covering pieces are provided for that area with a plurality of different shapes with essentially the same edge contours and edge design.

Abstract: A feed mechanism for a sewing machine with a material feed dog includes a support for a feed dog which is attached thereto and which is slidably mounted on a feed link and is connected with a drive for its transverse motion that is controlled independently of the main shaft. To effect a low inertia drive, the drive includes a link mounted on a pin firmly fixed to the housing. The link has a bearing drive piece eccentrically positioned with respect to the pin and in drive-contact with the feed dog support. The drive piece comprises an eccentric that surrounds the pin and abuts against a side surface of the support, thus providing a simple drive mechanism. In order to ensure low-friction transmission, the side surface of the support which is in contact with the eccentric is constituted by an abutment piece and in addition, transmission is accomplished via a roller bearing surrounding the eccentric.

Abstract: A top transport device on sewing machines includes a spring-loaded presser bar mounted for vertical movement, which is firmly connected with a presser foot, and with a two-armed top transport rocker in operative connection at its upper end via a connecting linkage with a feed drive and carrying a top transport foot, the rocker being mounted on a seating disposed on the presser bar. To improve the kinematic connection between top transport foot and presser foot, the seating is mounted freely displaceable on the presser bar and connected with a bearing piece fastened on the presser bar via an articulated link mechanism, at the articulated joint of which a lifting drive engages. A transitional phase of the pressure shift between presser foot and top transport foot when the latter sets down on the work and when it lifts off results by a connection of the top transport rocker with the seating via a limitedly swingable link.

Abstract: To produce novel pattern designs differing from patterns which are available, a sewing machine comprising control segments stored in a pattern carrier and corresponding each to one sewing pattern formed by a group of stitches, a device for sensing the program carrier, and a device for controlling the needle and feed movements determining the pattern, is provided with a second program carrier including control segments for at least a single stitch, with the second program carrier being activatable through a selector switch between two consecutive steps of sensing one or more of the control segments of the first program carrier.

Abstract: A sewn pattern arrangement is produced by a zig zag sewing machine in a workpiece, within the range of a modular pattern length and width. Individual elementary patterns are sewn which are formed by several stitches and are preferably of the cross-stitch type and extend each only over a fraction of the modular pattern width. This makes it possible to sew elementary patterns at various locations within the provided range of widths, so that a variety of optically impressive designs may be produced by sewing pattern rows in a desired configuration. The respective final stitch of a pattern element forms the first stitch of the subsequent one, so that jump stitches between elementary patterns are avoided. Large-area patterns may be obtained by grouping rows of pattern elements side by side.

Abstract: A drive for the work feed mechanism of a sewing machine comprises a stepping motor which is secured to a support connected to the housing of the sewing machine in a manner permitting rotary displacement and whose output shaft is connected to the setting shaft of a control mechanism by which the feed amount and direction of a feed dog is determined. To facilitate the adjustment of the angular step position of the stepping motor, the setting shaft of the control mechanism is mounted coaxially of the axis of displacement of the support of the stepping motor. To obtain a compact construction, the setting shaft of the control mechanism is supported in a bushing which is firmly connected to the support and fitted, but angularly displaceable and secured by clamp, in an open bearing of the sewing machine housing.

Abstract: In an electrically controlled sewing machine equipped with means for varying the feed and the needle position for individual stitches and with a program storage for storing consecutive sewing programs, the display is made easily understandable and the display unit remains a compact structure by providing alphanumeric display elements in a sequence and means for switching the display unit into a first state, in which a basic setting of the pattern is indicated in symbols, and into a second state in which the patterns can be indicated in the sequential order of their storage.

Abstract: A device for holding a sewing needle which has a cylindrical shank, an arcuate portion, and a flat wall portion, in a needle bar which has a longitudinally extending receiving groove with a flat interior receiving wall comprising a locking member. The locking member has a longitudinally extending bridge part with outwardly extending arms engageable around at least a portion of the circumference of the needle bar. The arms include an upper abutment arm extending outwardly of said bridge portion into the needle bar groove and defining a stop against which the top of the needle bar is engageable. The construction includes a lower abutment arm extending outwardly from the bridge engageable with an arcuate end over the arcuate portion of the shank so as to hold the flat portion of the shank of the needle on the flat interior receiving wall of the groove.

Abstract: A control assembly for varying the transmission ratio between a sewing machine driving shaft eccentric for feed dog transverse movement, and thus the feed and stitch widths, of a sewing machine which includes an oscillating lever mounted for oscillation adjacent to the feed dog and connected to it to move it backwardly and forwardly and an eccentric drive acting on the feed dog to move it upwardly and downwardly. The control assembly includes a push rod having one end connected to the oscillating lever to oscillate it and an opposite end having a pin thereon which is confined for movement in an oblong slot of a link which is articulated at its opposite end to one arm of a double armed lever, the other arm of which is engaged by the driving shaft eccentric to oscillate it. The pin carries a sliding block which is engaged in a sliding block guide and they are both made of a plastic having a sliding surface at their engagement surfaces.

Abstract: A method and a device for the formation of an overcast seam using a zigzag sewing machine are disclosed. After the formation of a first loop in an overstitch position of the needle bar, the needle bar, while the needle thread is slackened and the fabric is moved by one stitch length, changes to a second overstitch position in which another thread loop is made. Thereupon, the needle thread, leading from the first to the second thread loop, is pulled out to form a loop in the first overstitch position while the fabric is fed by another stitch length, the loop being offered to the needle for the stitching and released after stitching. The oversew mandrel of the device for implementing the method includes a double lever loop stripper. One arm of the double lever supplements the oversew mandrel and serves as the thread loop stripper. The other arm has a slide surface which projects into the path of motion of the needle fastening screw in the first overstitch position of the needle bar.

Abstract: A combined sewing machine housing and a clamping jig therefor to position the housing for machining purposes comprises a housing bed arm having a column connected to one end and extending upwardly therefrom and supporting one end of an upper arm. The clamping jig includes a post having stop guards thereon for aligning the upper arm and bed arms and column so that they may be positioned on the top of the jig. The sewing machine housing also has a plurality of bearing surfaces defined thereon which may be aligned with or engaged over a corresponding number of clamping elements in the form of rotatable dogs. When the housing is in position on the clamping jig it will be aligned so that one clamping dog enters through an opening of the sewing machine housing and may be rotated into a position to clamp against a bearing surface and the other clamping dogs may be rotated to engage over a bearing surface which is positioned alongside of it.

Abstract: A sewing machine includes a housing with an upper arm portion, a standard and a cloth holder arm and a sound player such as a transcriber recorder associated with the sewing machine with a sound producing device for explaining the operation thereof. The device may be associated with the machine itself, for example by being incorporated in the upper arm or it may be included as a portion of a cabinet for the sewing machine.

Abstract: A zigzag sewing machine for sewing fabric, comprises, a sewing machine housing which has a base portion which underlies an upper arm portion which is supported on a column extending upwardly from the base portion. A needle bar pendulum is mounted in the upper arm for swinging back and forth motion and a needle bar is mounted therein for upward and downward motion. A feed mechanism is located in the base portion below the upper arm and it includes a movable fabric support which is engageable with the workpiece to move it selectively in either a forward or backward direction. The drive mechanism for driving the feed mechanism and for controlling the swinging movement of the needle bar is contained in the base portion and it is operated under the control of a plurality of control cams by an operating element which is moved by depressing a key in a wall of the base portion so as to vary the type of stitch pattern which is effected.

Abstract: An electric sewing machine comprises a casing with an electric drive motor mounted in the casing. The casing includes a recess defined in the base portion which opens on one end and receives a control member which fits in the recess. The control member carries a control for regulating the speed of the motor which includes a foot-pedal switch for operating a variable resistance to change the motor speed. The control member includes a reel over which a connecting cable is wound and which extends between the control in the housing of the control member through the casing to the motor. A winding mechanism permits the control member to be removed from the recess of the casing by permitting the unwinding of the cable without disconnecting it from the control. The winding mechanism includes a reel which is unwound with the cable and a spring for returning the reel when the cable is to be rewound for replacement of the control into the housing.

Abstract: A needle bar pendulum for a sewing machine comprises a carrier bar which has a bearing engagement end at each end which are terminated by a shoulder in a central portion of the carrier bar and separate bearing members are engaged over each end of the carrier bar. For this purpose the bearing members have bores therethrough for accommodating the respective ends of the carrier bar and they also have a bore therethrough for the needle bar. The bearings are advantageously joined to the carrier bar in a permanent manner such as by a cementing or welding of the bearings in position after they are engaged thereon.

Abstract: A method for the formation of an overcast seam by means of a zig-zag sewing machine. After the formation of the first looping of needle and looper thread in a first overstitch position of a needle bar the needle thread is loosened and the needle bar moves into a second overstitch position, in which a further thread looping takes place. After the formation of at least one straight stitch in the second overstitch position, the joining thread between the first two thread looping is drawn out, forming a loop in the first overstitch position, the needle pierces into the loop, after which it is released. The seam thus formed is a firm joining seam by which the sewing material is not gathered between the thread loopings.