Abstract: An apparatus includes a processor and a memory. The memory is configured to store computer-readable instructions that, when executed, cause the processor to perform processes including acquiring a plurality of first needle drop points, acquiring a plurality of blade directions of a plurality of cutting needles, specifying a plurality of second needle drop points, calculating a first angular difference between a cutting line segment and a specific blade direction among the plurality of blade directions, specifying a specific rotation angle of the pattern, wherein the specific rotation angle is either a rotation angle of the pattern corresponding to the first angular difference which is smallest of the calculated first angular difference or a rotation angle of the pattern corresponding to the first angular difference which is equal to or smaller than a predetermined first threshold value, and generating cutting data.

Abstract: A buttonhole presser device includes a fabric presser unit; a fabric feed frame unit including a start position detecting member and an immovable receiving portion, the fabric feed frame unit being slidable relative to the fabric presser unit between a start position and an end position of the buttonhole; a button-diameter measuring unit including an end position detecting member and a movable receiving portion, the button-diameter measuring unit being configured to grip a button by being slid relative to the fabric feed frame unit; and a fixing unit that fixes the button-diameter measuring unit to the fabric feed frame unit when the button-diameter measuring unit is gripping the button between the immovable receiving portion and the movable receiving portion and that allows the button to be removed after the button-diameter measuring unit has been fixed to the fabric feed frame unit.

Abstract: A paint brush holder comprising a handle having an attachment portion. The attachment portion has a brush attachment end. The brush attachment end has a plurality of pins. The handle has an associated a slide lock track and slide lock.

Abstract: An eye-type buttonhole sewing machine comprises an x-y table with an x carriage which is guided on the sewing machine and on which a y carriage is displaceably guided, having a bearing plate. Actuation of the x carriage is effected by an x motor which is mounted on the sewing machine and directly coupled with the x carriage via a cam drive. Actuation of the y carriage is equally effected via an electric motor which is directly connected to the y carriage via a threaded spindle with a spindle nut and a sliding coupling.

Abstract: A buttonhole sewing machine for producing buttonhole seams with seam end sections of various shapes in a work piece comprises an input equipment for feeding buttonhole parameters; and a computer for calculating, from the buttonhole parameters, sewing data that determine the respective buttonhole geometry. It further comprises a memory for storing the computed sewing data and a key to be shifted into two key statuses, by means of which to trigger conversion of a buttonhole seam from a position to the left to a position to the right or vice versa, and storage thereof.

Abstract: A buttonhole sewing machine comprises work piece clamps with a pneumatically actuated displacement drive for displacement relative to each other of the work piece clamps from an initial position of spread by a length of spread into a final position of spread. Only the first work piece clamp is displaceable relative to the x-y table. The displacement of the first work piece clamp is defined between two stop positions. A control unit stores data for triggering an x drive for reversed displacement of the x-y table by half the given length of spread.

Abstract: An eye-type buttonhole sewing machine comprises an x-y table with an x carriage which is guided on the sewing machine and on which a y carriage is displaceably guided, having a bearing plate. Actuation of the x carriage is effected by an x motor which is mounted on the sewing machine and directly coupled with the x carriage via a cam drive. Actuation of the y carriage is equally effected via an electric motor which is directly connected to the y carriage via a threaded spindle with a spindle nut and a sliding coupling.

Abstract: A buttonhole sewing machine comprises work piece clamps with displacement drives for displacement from an initial position of spread by a length of spread into a final position of spread. The work piece clamp comprises a supporting plate for accommodation of a work piece and a clamping plate mounted on the supporting plate. A clamping drive for actuation of the clamping plate supports itself on the supporting plate.

Abstract: An eyelet buttonhole sewing machine has a housing with a stand and an arm. A table for carrying an article being sewn is driven in two mutually perpendicular directions (x, y) on the housing. A clamp for the article being sewn is fastened on the table. A needle bar which is mounted in the arm, is driven so as to move up and down and has a needle at its lower end. The clamp for the article being sewn has two arms fastened on a pedestal connected to the table, each arm having a clamping plate provided to bear on the article being sewn. The fastening points of the two arms on the pedestal are substantially adjacent to one another, and both arms are angled in such a manner that their fastening points are offset to the same side of the longitudinal axis of the arm.

Abstract: A sewing machine having a table, driven in two directions by two motors and accommodating material to be sewn, sewing tools, and a cutting device for producing a buttonhole in the material to be sewn. The buttonhole is provided with an incision and is bounded by zigzag stitches of a buttonhole bead, running around the incision. The incision is produced either before or after the sewing of the buttonhole bead. The sewing tools include a needle bar, which is driven up and down and also oscillates in the horizontal direction, and a needle, which is provided at the bottom end of the needle bar and interacts with a looper mounted in the base plate. The sewing tools are drivable in a rotatable manner by a third motor. The sewing machine has a control device, from which various buttonhole shapes stored therein can be retrieved, a device for switching from the pre-cutting mode to the post-cutting mode, and a needle-oscillating device driven by a fourth motor and producing the zigzag stitches.

Abstract: A sewing machine has a table, driven in one plane and carrying the material to be sewn, a stitch-forming device and a cutting device for producing a buttonhole in the material to be sewn. The buttonhole is provided with an incision, is produced in the pre-cutting or post-cutting mode and is bounded by zigzag stitches, running around the incision, of a buttonhole bead. The sewing machine has sewing tools comprising a needle bar, which is driven up and down and oscillates in the horizontal direction, and a needle, which is provided at the bottom end of the needle bar and interacts with a looper mounted in a base plate. An adjusting device sets the position of the zigzag stitches being provided in order to provide intermediate material (b) within the buttonhole bead in the post-cutting mode for allowing the material to be cut, without cutting the already-formed buttonhole bead.

Abstract: A fabric feeding device for a sewing machine, including a horizontally and vertically reciprocable feed dog, a feed control cam member with a forward and a reverse feed cam for controlling forward and reverse feed distances of the feed dog, a manually operated feed adjusting member for operating the cam member, a control plate operated by the cam member for changing the angle of a feed regulator for adjusting the fabric feed distances, an auxiliary feed cam member operated by a manually operated buttonhole stitching pattern selector member, an auxiliary feed plate positioned by the auxiliary feed cam member and cooperating with the feed control cam member to move the control plate, a buttonhole reverse feed auxiliary cam member operated by the feed adjusting member, and a buttonhole fine feed adjusting lever rotatably supported by a manually operated buttonhole fine feed adjusting masher and positioned by the buttonhole reverse feed auxiliary cam member for positioning the auxiliary feed plate, wherein a smal

Abstract: A sewing machine is provided with an X-correction value input unit that corrects, in an X-direction, seam position with respect to a position of an opening, e.g., a circular hole, formed in a workpiece cloth by an opening forming mechanism, and an X-direction seam data correction unit that corrects seam data based on an X correction value inputted from the X-correction value input unit. The sewing machine can also be provided with an Y-correction input unit and a Y-direction seam data correction unit for correcting Y-direction information in the seam data. With the seam data corrected by the seam data correction units, a seam position can be corrected with respect to the position of the opening formed by the opening forming mechanism.

Abstract: A feeding mechanism of an eyelet-end buttonhole sewing machine comprising a bed shaft rotatably supported by a bed, a rapid feed shaft rotatably supported by the bed, a pattern wheel shaft being rotatably supported by the bed and driven by the rapid feed shaft, and a feed wheel being rotatably supported by the bed and driven by the pattern wheel shaft for giving rapid feed to a cloth to be sewn in a forward and backward direction, and also being rotatably driven by the bed shaft for giving rapid feed to the cloth to be sewn in a forward and backward direction involved in a sewing step, the feeding mechanism further comprising a rotary driving source being rotatably driven normally and reversely, a bed shaft rotary member being rotatably driven normally and reversely by the rotary driving source, a rapid feed rotary member being fixed to the rapid feed shaft and retained by the bed shaft rotary member so as to be reversely rotated therewith, a one way sewing clutch for transmitting only a normal rotation of th

Abstract: A thread-cutting mechanism for a sewing machine (2), especially an eyelet-buttonhole sewing machine with a moving blade (12 or 12") and a stationary blade (16). The moving blade travels back and forth in a groove (19) in a plate (1) with an aperture for the needle to pass through while it is producing a stitch. The needle-aperture plate comprises at least a top (11 or 11") and a bottom (10 or 10"). The moving blade is entirely accommodated between the top and the bottom of the plate. The stationary blade is part of the top.

Abstract: The invention relates to thread trimming devices for eyelet buttonhole machines. The invention comprises a thread trimming device having a snap action spring arm knife. As the thread hook positions the thread and gimp, a cam lifts up the end of the spring arm. The cam then releases the knife whose torque snaps down and cuts the thread and gimp against a second knife edge. The thread and gimp are also held together at this point for the next buttonhole by a thread retainer which is built into the knife.

Abstract: An eyelet buttonhole sewing machine has a suction device between the throat plate and the wedge-shaped knife of the buttonhole cutting device. The suction device includes a suction tube and is connected to a vacuum generator, for instance an ejector nozzle or a transvector nozzle. The looper thread is brought near the suction device by a thread puller. When the looper thread is cut by the thread cutting device at the end of the sewing process, suction is applied to the suction tube, pulling the end of the looper thread into the opening of the suction tube. In this way, the looper-thread end assumes a well defined position in which it is disposed for being completely covered by the corresponding welt of the following buttonhole to be sewn. With the suction device and thread puller operating as described, it is no longer necessary to clean the buttonhole by cutting off the end of the looper thread.

Abstract: In a sewing machine for creating buttonholes, a selection switch is used to designate whether the hole will be cut first or the buttonhole will be defined by stitching first. In both cases, stitch width remains constant. Where the buttonhole is outlined by stitches first, a needle bar bight line is offset by a distance .DELTA.X from the bight line followed when the buttonhole is cut first. The result of the .DELTA.X offset is a spacing equal to 2.DELTA.X between the inner edges of the stitched buttonhole providing space in which to cut the buttonhole.

Abstract: A quick feeding shaft is rotatably supported at a bed of a perforating sewing machine. A quick feeding shaft rotatable in one direction and has one end coaxially connected to a magnetic clutch shaft and the other end coaxially connected to one end of a quick feeding shaft body provided with a worm. A magnetic clutch is secured coaxially to the magnetic clutch shaft and operatively connects the magnetic clutch shaft to the quick feeding shaft. A pattern wheel shaft is disposed at right angles to the quick feeding shaft and has a pattern wheel for feeding a sewn cloth quickly. A worm wheel coaxially secured thereto at an intermediate portion thereof to mesh with the worm. The worm wheel and the worm form a gear mechanism for transmitting the rotational driving force of the quick feeding shaft to the pattern wheel shaft.

Abstract: In a hole sewing machine of the type adapted to stitch a buttonhole or the like, an X-Y table member is operatively connected to a work support member upon which the material to be stitched is placed, motors are provided for driving the table along orthogonal X-Y axes and a further motor is provided for synchronously rotating the needle bar and looper stand of the sewing machine about the axis of the needle bar. A control device is provided for supply drive signals to the various motors in accordance with the predetermined buttonhole sewing program so that the buttonhole is stitched in accordance with the desired pattern by merely selecting a specific buttonhole sewing program.

Abstract: A laterally elongated plate is provided with anchors in a transversely elongated tape support area of the plate by which to secure the opposite ends of a length of pressure sensitive adhesive tape extended across the tape support area, with the adhesive side of the tape facing upward. A stitch indicator line is provided on the plate inwardly of and parallel to the tape support area to indicate an ultimate stitching line, and loop size guide lines also are provided on the plate spaced inwardly from and parallel to the stitch indicator line to orient cloth loop material according to the size of loops desired to be formed. Laterally spaced markings are provided on the plate adjacent the tape support area to aid in spacing loop units desired distances apart.