Abstract: A terminal has: a sewing information file preparation unit for preparing a sewing information file which includes a sewing information related to a particular sewing data selected from a plurality of sewing data stored in a predetermined folder of a storage unit; and a storage processing unit for storing the prepared sewing information file in another folder of the storage unit. A sewing machine includes: a reading folder determination unit for determining a folder to which the sewing information file to be sewn is read from the storage unit based on the current operation mode; and a sewing data acquisition unit for referring to the sewing information included in the sewing information file from the determined folder and acquiring the particular sewing data.

Abstract: A foot-operated controller of a sewing machine including a first pedal that input a number of revolution of a sewing machine motor by stepping of a user, a second pedal pressed by the user, a main body that supports the first pedal, and a support unit that supports the second pedal, in which the support unit is selectively attachable in disposition where the second pedal is on the left side of the first pedal and disposition where the second pedal is on the right side of the first pedal. In both cases where the second pedal is on the left side of the first pedal and the right side of the first pedal, across an interval between the main body and the support unit, it is possible to detect the pressing to the second pedal with respect to the second element.

Abstract: Presented are a method, apparatus, and computer-readable medium for stitching. The method includes sensing, by a first sensor, a movement of a work piece relative to a sewing head. The method further includes sensing, by a second sensor, a movement of the work piece relative to the sewing head. The method includes determining, by a processor, a translational and rotational movement of the work piece relative to the sewing head based on the sensed movement of the first sensor and the second sensor. The method also includes altering, by the processor, a speed of a reciprocating needle in response to the determined translational and rotational movement.

Abstract: Presented are a method, apparatus, and computer-readable medium for stitching. The method includes sensing, by a first sensor, a movement of a work piece relative to a sewing head. The method further includes sensing, by a second sensor, a movement of the work piece relative to the sewing head. The method includes determining, by a processor, a translational and rotational movement of the work piece relative to the sewing head based on the sensed movement of the first sensor and the second sensor. The method also includes altering, by the processor, a speed of a reciprocating needle in response to the determined translational and rotational movement.

Abstract: Presented is a method, apparatus, and computer-readable medium for moving. A method includes sensing a change in a torque on a motor operably connected to a sewing head for at least partially assisting movement of the sewing head relative to a workpiece. The method further includes adjusting an output of the motor to change at least one of a direction and a speed of movement of the sewing head in response to the sensed change in the torque.

Abstract: The present invention relates to sensing engaged/disengaged modes of an electromagnetic actuator assembly, such as can be used in a locking differential or other locking gearset. Described herein is a sensor for sensing such engagement/disengagement and methods of using such a sensor. The sensor has a magnet having a north and south pole, a Hall element, and a ferrous target, wherein the ferrous target moves relative to the Hall element and magnet as a result of a position of the locking gearset.

Abstract: Presented are a method, apparatus, and computer-readable medium for stitching. The method includes sensing, by a first sensor, a movement of a work piece relative to a sewing head. The method further includes sensing, by a second sensor, a movement of the work piece relative to the sewing head. The method includes determining, by a processor, a translational and rotational movement of the work piece relative to the sewing head based on the sensed movement of the first sensor and the second sensor. The method also includes altering, by the processor, a speed of a reciprocating needle in response to the determined translational and rotational movement.

Abstract: Techniques and mechanisms to perform photodetection with an eye-mountable device. In an embodiment, the eye-mountable device includes an enclosure material and light sensor circuitry formed therein, the enclosure material to be disposed in or on an eye of a user. The light sensor circuitry comprises a transimpedance amplifier circuit including a differential amplifier, one or more feedback paths coupled across the differential amplifier, a photodiode and a capacitor coupled between the photodiode and an input terminal of the differential amplifier. Incidence of light upon the photodiode results in some charging of the capacitor, where an amplified signal is provided at an output terminal of differential amplifier based on such charging. The capacitor mitigates static power consumption by the photodiode. In another embodiment, the amplified signal is evaluated based on at least two threshold values to detect a direction of gaze by the user.

Abstract: A sewing machine that operates with power supplied from a main power supply includes a needle plate having a needle hole through which a sewing needle can pass, an illuminating device that illuminates the needle hole and a vicinity of the needle hole, a power supply device that stores power, a detection device that detects whether a predetermined operation is performed in the sewing machine, a power distribution device that supplies the power from the power supply device to the detection device and the illuminating device, if supply of the power from the main power supply is turned off, and a turning-on device that turns on the illuminating device, if the detection device detects that the predetermined operation is performed in a condition where the supply of the power from the main power supply is cut off.

Abstract: A sewing machine operating device includes a connection unit which is connectable to a sewing machine body, an output unit which generates and delivers an operation signal according to an action of user's foot, a placement pedestal on which user's foot is placed, a support unit which supports the placement pedestal so that the placement pedestal is movable in any direction, and a detection unit which detects that the placement pedestal or user's foot occupies any one of different predetermined positions when the user has moved the placement pedestal with user's foot being placed on the placement pedestal.

Abstract: A sewing machine operating device includes a base, a connecting mechanism which electrically connects the sewing machine operating device to a sewing machine body, a plurality of operating members which is mounted on the base and operated by a user with his/her foot, a signal output unit which generates an operation signal and delivers the operation signal via the connecting mechanism to the sewing machine body, the operation signal being according to operation of each operating member, and a position adjusting mechanism which changes a position of at least one of the operating members mounted on the base.

Abstract: A sewing machine is provided. The sewing machine includes a top covering shaft mechanism, a spreader mechanism detachably attached to the top covering shaft mechanism from below and operable to catch a covering thread and to interlace the covering thread with a needle thread inserted into a needle to form covering stitches, and an operating member having a hook portion and rotatably attached to either one of the top covering shaft mechanism and the spreader mechanism. The other of the top covering shaft mechanism and the spreader mechanism has a protrusion with which the hook portion is engageable. The operating member is rotatable between a position at which the hook portion engages with the protrusion to lock the spreader mechanism with respect to the top covering shaft mechanism and another position at which the spreader mechanism is detachable from the top covering shaft mechanism.

Abstract: A sewing apparatus that includes a sewing device that performs sewing on a sewn object, a first operating device that is operative to input a command to execute an operation of the sewing device, a first detecting device that detects a preliminary operation state that is an operation state with respect to the first operating device that precedes an executing operation state, the executing operation state being an operation state for inputting the command to execute the operation of the sewing device, a notifying device that represents any one of at least two states that include a first state that corresponds to the preliminary operation state, and a control device that puts the notifying device into the first state in a case where the preliminary operation state is detected by the first detecting device.

Abstract: An embroidery stitcher including an embroidery frame that holds a workpiece cloth and that is provided with a sewable area for sewing the held workpiece cloth; a transparent display device that has a display area that provides visibility behind thereof and that is capable of displaying embroidery pattern information of at least an embroidery pattern to be sewn; and an attachment mechanism that allows detachable attachment of the display device at a position that renders the display area and the sewable area to at least partially overlap.

Abstract: A sewing machine that operates with power supplied from a main power supply includes a needle plate having a needle hole through which a sewing needle can pass, an illuminating device that illuminates the needle hole and a vicinity of the needle hole, a power supply device that stores power, a detection device that detects whether a predetermined operation is performed in the sewing machine, a power distribution device that supplies the power from the power supply device to the detection device and the illuminating device, if supply of the power from the main power supply is turned off, and a turning-on device that turns on the illuminating device, if the detection device detects that the predetermined operation is performed in a condition where the supply of the power from the main power supply is cut off.

Abstract: A sewing machine is provided. The sewing machine includes a top covering shaft mechanism, a spreader mechanism detachably attached to the top covering shaft mechanism from below and operable to catch a covering thread and to interlace the covering thread with a needle thread inserted into a needle to form covering stitches, and an operating member having a hook portion and rotatably attached to either one of the top covering shaft mechanism and the spreader mechanism. The other of the top covering shaft mechanism and the spreader mechanism has a protrusion with which the hook portion is engageable. The operating member is rotatable between a position at which the hook portion engages with the protrusion to lock the spreader mechanism with respect to the top covering shaft mechanism and another position at which the spreader mechanism is detachable from the top covering shaft mechanism.

Abstract: A feed dog drive motor and an X-direction motor are connected to common input/output ports of a CPU via first and second driver IC circuits, respectively. In response to a drive switching signal generated from the CPU, selected one of the first and second driver IC circuits is enabled, causing the feed dog drive motor and the X-directional motor to selectively energize. A common driver IC circuit can be used in place of the first and second driver IC circuits. With such a configuration, the number of input/output ports of the CPU as well as the number of driver IC circuits can be reduced.

Abstract: A pluggable external wireless receiver module includes a housing, a power terminal unit, a receiver device, and a control terminal unit. The power terminal unit is mounted on the housing and is adapted for connection to a power source. The receiver device is mounted in the housing, and includes a receiver unit for receiving a wireless control signal, a processing unit for processing the control signal received by the receiver unit, and a driving unit controlled by the processing unit for generating a motor control output corresponding to the processed control signal. The control terminal unit is mounted on the housing, is connected to the driving unit of the receiver device, and is adapted for connection to a connector of a sewing machine, thereby transmitting the motor control output from the driving unit to the sewing machine for controlling operation of a motor of the sewing machine accordingly.

Abstract: Disclosed is the invention in connection with an electric sewing machine comprising a machine body 1 and a controller 2, wherein the controller 2 is responsive to a first press to produce a signal for starting the machine body 1 and is responsive to further press to produce a signal for driving the machine body 1 at a stitching speed (drive speed) in accordance with the pressing amount. The machine body 1 is provided with a control device 11 which is connected to a changing device 30 which is operated to change the control content of the control device 11. The changing device 30 may be operated to switch the control device 11 between being operative and being inoperative. In case the control device 11 is switched to being inoperative, the control device 11 neglects the instruction signal from the controller 2, for example, produces a stop signal to a motor drive device 12 in response to a machine drive signal from the controller 2, thereby to maintain the machine motor as stopped.

Abstract: A motor system for a sewing machine includes a motor unit rotatable at a first rotation speed; a clutch unit with an output shaft capable of being coupled to or separated from the motor unit; a speed changing unit for switching the first rotation speed to a second rotation speed; a position control unit with a sliding disk being movable to a first position, a second position or a third position, making the sliding disk rotate at the second or first rotation speed or stopped; an auxiliary driving shaft for transmitting the rotation of the sliding disk to the output shaft; a first sensor for detecting the position of the clutch unit; and a second sensor for detecting the position of a sewing mechanism of the sewing machine. Thereby, a first speed control, a second speed control and a stopping position control can be achieved for the sewing mechanism.

Abstract: The invention concerns a tufting machine having at least one needlebar, loopers, hooks to pick up yarn delivered through the needles of the needlebar, knives to cut yarn loops and driving means, with the needle action and/or the looper action and/or the hook action, and/or the knife action being a non-simple harmonic motion. In said machine the needles, the hooks, the knives and the loopers have separate drive systems. So the motion of the needles, the hooks, the knives and the loopers can be such that first of all the pickup of the yarn or the cutting of the yarn loop can be improved. When the drive system is computer controlled more accurate machine set up can be achieved. Moreover different set ups can be achieved automatically for different products. Patterning effects are also possible.

Abstract: A sewing apparatus such as sewing machine includes a needle bar, a needle bar rocking mechanism for rocking the needle bar, a thread cassette having a thread accommodating section for accommodating a thread, a cassette mount to which the thread cassette is detachably attached, a threading mechanism for passing the thread drawn from the thread cassette through a hole of a sewing needle mounted on the needle bard, a detector for detecting the thread cassette ejected from the cassette mount, and a needle bar position control unit controlling the needle bar rocking mechanism so that the needle bar is rocked so as to occupy a predetermined zigzag position, when the detector has detected the thread cassette ejected from the cassette mount.

Abstract: A sewing machine has a device for steering towards a predetermined end (E) of a seam (B1). An alternating movement of the feed elements of the sewing machine, which occurs when the stitch adjusting device is set, is taken into consideration in the calculation of the target stitch length (Sb) of the final optionally shortened end stitch (Nre) of the seam, in such a way that the setting value that deviates from the target stitch length is produced.

Abstract: A sewing apparatus such as a household sewing machine includes a needle bar, a needle bar vertically moving mechanism, a needle bar position changing operation unit operated via the needle bar vertically moving mechanism to change a vertical position of the needle bar, a thread cassette having a thread accommodating section accommodating a supply of thread, a cassette mount to which the thread cassette is detachably attached, a cassette detector detecting the thread cassette attached to the cassette mount, and a needle bar position changing control unit controlling the needle bar vertically moving mechanism so that in a case where the needle bar position changing unit has been operated, the needle bar is changed from an upper stop position to a lower stop position or vice versa according to a position of the needle bar at the time of operation of the needle bar position changing unit when the thread cassette is attached to the cassette mount according to a result of detection by the cassette detector, the nee

Abstract: A sewing machine has a device for steering towards a predetermined end (E) of a seam (B1). An alternating movement of the feed elements of the sewing machine, which occurs when the stitch adjusting device is set, is taken into consideration in the calculation of the target stitch length (Sb) of the final optionally shortened end stitch (Nre) of the seam, in such a way that the setting value that deviates from the target stitch length is produced.

Abstract: A process and apparatus are provided for controlling components of individual work stations of a textile machine wherein the textile machine includes a plurality of adjacent such work stations. The work station components are run at a first speed during normal operation. A time period is established at the start of a voltage loss to the components. At the conclusion of this time period, the components are shut down. The components assume a second set speed as they run down during the time period beginning at the start of the voltage loss. Upon the voltage loss, an auxiliary current source is activated and the speed of the components which are supplied with auxiliary voltage from the current source is reduced in a controlled manner with the aid of a control program.

Abstract: A sewing machine capable of preventing formation of no first stitch (skipping stitch), which is readily caused immediately after the sewing machine starts to operate, is obtained. This sewing machine comprises a first detector detecting that a thread engaging part of a balance is located in the vicinity of a forward movement starting point leftward beyond a thread receiving opening of a thread guide plate and an indicator operating on the basis of a detection signal received from the first detector. Thus, the operator can recognize that the thread engaging part of the balance is located in the vicinity of the forward movement starting point leftward beyond the thread receiving opening of the thread guide plate through the indicator.

Abstract: In a sewing machine, the speed-dependent change in the stitch length is compensated by a speed-dependent correction of the setting of the stitch regulating device. A linear stitch length desired value curve Ss is obtained.

Abstract: The invention has been made to provide an embroidery sewing machine which may be automatically operated to withdraw the embroidering frame to a predetermined inoperative position. More particularly, in case the power source switch is turned off, the power happens to be in failure, the power cord happens to be disconnected, the sewing operation is interrupted for a predetermined period of time, or the instruction is given to withdraw the embroidering frame to a predetermined inoperative position, the CPU 50 is responsive to these situations to control the X-Y moving mechanism 67 to withdraw the embroidering frame to the predetermined inoperative position.

Abstract: In connection with an electric motor (12) used for operating a sewing machine, which has a fan wheel (17) and a speed sensor (25), the fan wheel (17) and the screen disk (18) of the speed sensor (25), as well as a belt pulley (19) of the belt drive (10), are combined into a multi-function wheel (15).

Abstract: When a trace mode is started, a needle and a presser foot are moved relative to an embroidery frame. When a STOP key is pressed, moving is temporarily stopped, and the operator can visually check a positional relationship between the needle and the embroidery frame. When it is necessary to check the positional relationship in detail, a DOWN key is pressed and the presser foot is lowered independently of the needle, so that the operator can visually check the positional relationship between the presser foot and the embroidery frame.

Abstract: A sewing machine capable of tracing an embroidery area by relatively moving a needle bar as a sewing device and an embroidery frame which holds a work cloth on which an embroidery pattern is embroidered based on embroidery data, comprises a calculating device that calculates a convex polygon in multiples of eight covering the pattern inside from the embroidery data, and positions of a plurality of vertexes comprised of the convex polygon, and a trace device that traces the embroidery area based on the vertexes found by the calculating device.

Abstract: A system and method for controlling the stopping point of a tufting machine in relation to a preset stitch pattern. The system includes a controller and an encoder to detect the current location of a tufting machine needle bar in the stitch pattern. Upon receipt of a stop signal, the controller insures that the needle bar is stopped at a preset stop step in the stitch pattern. In a preferred embodiment of the invention, the controller first slows the main drive shaft of the tufting machine to a jogging speed prior to stopping the tufting machine, and stops the machine at the home position of the carpet pattern. Introducing a delay between receipt of the stop signal and deceleration of the main drive shaft minimizes the jogging time of the machine. The method is directed to stopping the tufting machine at a predetermined stop step and at a position relative to degrees of mainshaft rotation.

Abstract: A controller for a sewing machine includes a driving motor 7 for driving a main shaft of a sewing machine head; a detecting unit 9 having a rotation-angle detecting means for detecting a rotational angle of the motor 7; a control section 40 for controlling the motor 7 and receiving a detection signal of the detecting unit 9; an operating section 30 for instructing the operation of the sewing machine; a designating means 34 provided in the control section 40 or the operating section 30 for designating a predetermined position in a vertically moving process of a needle 5 of the sewing machine; and a first memory portion 55 and a second memory portion 131 capable of storing and reading a value designated by the designating means, wherein the first memory portion 55 is provided in the control section 40, and the second memory portion 131 is provided in the detecting unit 9 or the operating section 30.

Abstract: The fabric-side hook thread end (GN), which was previously longer than the fabric-side needle thread end (NN) by the amount corresponding to a stitch length, is to be shortened in sewing machines with a thread-cutting device. This object is accomplished by the feed device of the sewing machine, of which there is at least one, performing a partial feed step in the reverse feed direction during the performance of the thread-cutting process.

Abstract: A method and apparatus for stitching a label to material in which the material and label are joined face side down rather than face side up. The label is held face side down with a clamp and a panel is held over the label by a clamp. The label and panel are joined by a sewing machine. Further, a mechanism is provided for activating a thread knife of the sewing machine at such a time that the bobbin thread only is cut. A masking mechanism is provided for masking electronic signals of the sewing machine that would otherwise cause the machine to reset at a normal needle height, so that a sewing operation can be stopped with a needle at a maximum clearance position. Pneumatic cylinders and linkage are provided for raising the needle and presser foot at the end of a stitching operation.

Abstract: A multihead sewing machine includes a sewing machine motor, a main shaft rotated by the sewing machine motor, a plurality of sewing needles driven by the main shaft, a plurality of shuttles for capturing thread loops in cooperation with the sewing needles respectively, each shuttle having a hook shaft, and a plurality of shuttle driving motors for rotating the hook shafts of the shuttles independent of the sewing machine motor respectively. The sewing machine motor and the shuttle driving motors are controlled so that the sewing machine motor and each shuttle driving motor are rotated in synchronism with each other. Loss of synchronism of each shuttle relative to the corresponding sewing needle is detected. Rotation of the main shaft is stopped in an abnormal condition in which the loss of synchronism has been detected with respect to at least one of the shuttles.

Abstract: In a presser foot device of a sewing machine, a presser foot is vertically movably supported to a sewing machine body frame by a presser bar. A drive device moves the presser bar up and down in accordance with a drive signal. A sensor detects when the presser foot is raised close to a top dead center position, that is, a predetermined position. Based on the detection by the sensor, a control device controls the drive signal for the presser foot drive device.

Abstract: A sewing machine having an embroidery frame and a drive unit for driving that frame with respect to the sewing needle, wherein the area occupied by the frame and drive unit can be reduced for storage. To do this, the user presses a storage button on an LCD touch panel screen. The CPU determines that a command has been given to reduce the area of the frame and drive unit for storage; calculates the amount of drive necessary to move the embroidery frame from its current position stored in nonvolatile memory to the position used for storing the drive unit; and controls drive motors to move the embroidery frame the distance calculated, reducing the overall area occupied by the frame and drive unit.

Abstract: A sewing machine, with independently driven main shaft and loop taker, stores a table containing preset speed correction values for negating rotational speed variations in the loop taker drive shaft caused by torque variations on the same; sets speed correction amounts based on speed correction values read from the speed correction value table; and outputs correction drive signals indicative of those speed correction values to the loop taker drive motor.

Abstract: A sewing machine including a needle bar having a sewing needle, a spindle for driving the needle bar, a bed portion movable selectively to a using position or a retracted position, and a rotary hook housed in the bed portion. A stitch is formed by the cooperation of the sewing needle and the rotary hook. A rotary hook drive motor is provided in the bed portion for driving the rotary hook. A sensor is provided for detecting a position of the bed portion. The needle bar and the spindle is selectively disconnected from each other. If the bed portion is out of the using position, and this out position is detected by the sensor, the needle bar is released from the spindle for stopping the sewing needle. Further, in this case, the rotation of the rotary hook drive motor is also stopped.

Abstract: A sewing machine including a head portion including a needle bar, the needle bar being for mounting a needle threaded with a needle thread; a principal shaft; a sewing machine motor for driving the needle bar via the principal shaft; a bed portion including a loop taker for taking a thread loop of the needle thread in cooperative operation with the needle; a loop taker drive shaft connected to move in association with the loop taker; a drive motor for driving the loop taker drive shaft independently of the principal shaft; a first detection unit for detecting a rotation condition of the principal shaft and outputting a first detection signal accordingly; a second detection unit for detecting a rotation condition of the loop taker drive shaft and outputting a second detection signal accordingly; and a synchronization control unit for controlling at least one of the drive motor and the sewing machine motor based on the first detection signal from the first detection unit and the second detection signal from the

Abstract: A fabric feed direction reversing device for a sewing machine having a reversing mechanism that switches a sewing object feed direction includes a control means that stops a needle at an upper position or a lower position by controlling a sewing machine drive motor based on a sewing object feed direction reversing command generated from a feed reverse command section, and that operates the reversing mechanism after the needle has stopped, and that operates the sewing machine drive motor after the reversing mechanism operation has been completed.

Abstract: A sewing machine including a needle bar to which a sewing needle conveying a sewing thread is secured, a main shaft to which the needle bar is connected, a loop catcher which cooperates with the sewing needle to catch a loop of the sewing thread conveyed by the needle, a catcher shaft to which the loop catcher is connected, a drive motor which drives at least one of the needle bar and the loop catcher by rotating a corresponding one of the main shaft and the catcher shaft, a first sensor which detects a first reference rotation position of at least one of the main shaft and the catcher shaft and generates a first detection signal indicating that the one shaft is taking the first reference rotation position, a second sensor which detects a second reference rotation position of the drive motor and generates a second detection signal indicating that the drive motor is taking the second reference rotation position, and an indicating device which indicates, based on the first detection signal, that the one of the

Abstract: A sewing machine including a needle bar for holding a sewing needle which conveys a sewing thread; a shaft member to which the needle bar is connected; a needle-bar drive motor which reciprocates the needle bar via the shaft member; a loop catcher which cooperates with the sewing needle to catch a loop of the sewing thread conveyed by the sewing needle; a catcher drive motor which rotates the loop catcher; an asynchronism detector which detects a first asynchronous state in which an amount of asynchronism between the needle bar and the loop catcher is greater than a first reference value and/or a second asynchronous state in which it is expected that the amount of asynchronism will be greater than a second reference value; and a holding device which holds, when the asynchronism detector detects the first and/or second asynchronous state, the needle bar and/or the loop catcher, at a holding position where the sewing needle and the loop catcher do not collide with each other.

Abstract: A sewing machine having a motor drive operating in response to a controller to rotate in forward and reverse rotation directions. A jogging angle may be set and the drive operated automatically for rotation in forward and/or reverse directions as a function of various operating conditions so that the needle is stopped in an optimum position for piercing a material.

Abstract: A sewing machine having a motor drive operating in response to a controller to rotate in forward and reverse rotation directions. A jogging angle may be set and the drive operated automatically for rotation in forward and/or reverse directions as a function of various operating conditions so that the needle is stopped in an optimum position for piercing a material.

Abstract: A sewing machine having a motor drive operating in response to a controller to rotate in forward and reverse rotation directions. A jogging angle may be set and the drive operated automatically for rotation in forward and/or reverse directions as a function of various operating conditions so that the needle is stopped in an optimum position for piercing a material.

Abstract: A sandwich synchronizer for a sewing apparatus. The synchronizer is formed to be interposed between the rotatable drive shaft of a sewing machine and the rotary encoder for the sewing machine. The sandwich synchronizer includes a rotatable synchronizer shaft, an encoder for detecting rotation of the synchronizer shaft, and means at either end of the synchronizer shaft for attaching to the rotary encoder and the rotatable drive shaft. The sandwich synchronizer is a universal synchronizer which can be used in any sewing apparatus, no matter what the manufacturer and no matter what the output of the rotary encoder for that sewing apparatus.

Abstract: A sewing machine includes a sewing needle, a lower looper, a motor for driving the sewing machine, and a controller for controlling the driving and stopping of the motor. When, in the sewing machine, the controller operates to stop the motor, stop control means operates to stop the motor such that said sewing needle is stopped at a time corresponding to the time just before the sewing needle reaches the bottom dead point and to the time that a needle thread disengages from the sharp tip of the lower looper.