Abstract: A sewing apparatus is disclosed in which a thread cassette holding a needle thread wound is used. The sewing apparatus includes a cassette mount to which the thread cassette is detachably attached, a carrier carrying the thread cassette between an attachment start position and an attachment finish position in the cassette mount and a control device for electrically controlling rotation of a motor that moves the carrier.

Abstract: A needle bar thread guide for a sewing machine includes a thread guide body mounted on a needle bar and having a threading portion for threading the sewing machine, an introducing portion formed on the thread guide body for introducing a needle thread to the threading portion, and a fall-off preventing member disposed at a position near to spaces over and below the thread guide body. The fall-off preventing member allows the needle thread to be introduced via the introducing portion to the threading portion and prevents the needle thread introduced to the threading portion from falling off from the introducing portion.

Abstract: In an upright (3) of a sewing machine (1), a thread spool holder (24) is mounted in a recess (13) so that it can pivot out of the recess (13). On this holder, thread spool pins (23) are placed, as well as an arm (35), on whose upper end thread guidance elements (33) are fixed. For use, the cover (15) which covers the thread spool holder (24) in the stowed state is opened, and the thread spool holder (24) is pivoted out from the recess (13).

Abstract: A sewing machine includes a sewing machine body formed with a cassette mount, a thread cassette having a supply of thread and detachably attached to the cassette mount, and a moving speed limiting unit limiting a moving speed of the thread cassette when the thread cassette is attached to the cassette mount. The moving speed limiting unit includes a moving member capable of moving substantially together with the thread cassette in the course of movement of the thread cassette to a predetermined position in the cassette mount, a rotating member rotated by movement of the moving member, and a rotational resistance applying unit applying rotational resistance to the rotating member.

Abstract: A sewing machine includes a needle plate with a cutout part, and a guide plate connected to a bottom side of the needle plate and extending substantially across the cutout part. The guide plate includes a pair of slide rails, an opening substantially corresponding in position to a bobbin case, and a curved thread guide slot having one end communicated with the opening and another end extending to one of the slide rails. A slide cover covers the cutout part and is slidable along the slide rails. A cutter is disposed at the lateral edge proximate to one of the slide rails. A lower thread guide extends along one of the slide rails from another end of the thread guide slot toward the cutter for guiding a lower thread from the bobbin case to extend to the cutter.

Abstract: A multiple thread dispenser which serves as both a portable container for many spools of thread and a dispenser of multiple strands of thread. The container dispenses thread for use with a sewing machine. The spools of thread are stored in an array of pockets which are relieved for easy access to the spools. Multiple strands of thread dispense from a top row of pockets. A base plate stabilizes the container while dispensing thread to a sewing machine. The base plate can be stored within the container during transport. The base plate has a pocket on the bottom of the base plate for printed material that can be viewed through a semi-transparent lid when the base plate is in its stored position.

Abstract: The present invention provides a device for generating a loop or a file used in an embroidery frame and the device comprises a fore-back driving part including a fore-back driving motor, a first gear driven with said motor, a second gear driven by a means coupling with said first gear, a third gear driven by a co-axis of rotation with said second gear, a first stop bar to switch said motor positioned at the lower part of said co-axis and cam-shaped stoppers placed within the area covered by the rotation of said first stop bar; a left-right driving part including a left-right rotating motor, a fourth gear driven with said motor, and a shaft having a fifth gear associated with said forth gear at the one end and a worm gear at the other; and a lead arm part connect to said shaft and including a lead arm to generate a loop, a lead arm body to joint said lead arm, lever stoppers to suppress the rotation of the motor and a second stop bars placed with the area covered by the rotation of the lead arm wherein said ea

Abstract: A sewing machine includes a thread take-up lever and a thread tension regulator each disposed along a predetermined needle thread passage from a thread bobbin to a needle, an arm having a front face, and a movable controller disposed in the front of the arm so as to be movable at least within a predetermined range. The movable controller does not protrude out of the front face of the arm when moved in the predetermined range. The needle thread is engaged with at least one of the thread take-up lever and the thread tension regulator when the movable controller is moved within the predetermined range while the needle thread has been drawn from the thread bobbin near to the needle substantially along the predetermined needle thread passage.

Abstract: A threading apparatus for threading a thread guide of a sewing machine includes a moving member, a pivot arm, and a hook member pivotally mounted on the moving member and coupled to the pivot arm so as to be operated in synchronization with the pivot arm. The hook member has a threading hook and performs a first rocking switching the hook member from a standby position where the threading hook is not threaded to an operating position, based on action of an operating force upon rotation of the pivot arm. The hook member further performs a sliding movement in which the hook member is slid from the operating position together with the pivot arm and the moving member to thread the thread guide and a second rocking in which the hook member is rocked to be returned to the standby position after having threaded the thread guide.

Abstract: A spool holder for a sewing machine, which holder finds particular use in a serger-style sewing machine, nests in the core of a thread spool and is matable with a spindle to generally maintain the thread spool in a stationary position for unwinding of the thread wound on the spool during a sewing operation, which spool holder may rotate on the spindle from the application of undue forces but is stable and strong enough to provide stability to the thread spool and its core.

Abstract: A tufting machine utilizing a plurality of yarn ends proceeding through a single needle cooperates with a yarn tension device which selectively applies a different tension to at least one of the plurality of yarn ends proceeding through the needle. Accordingly, a pattern or design can be provided in tufted fabric as the lower tension (higher speed) yarn ends will extend a higher distance from a fabric than lower tension yarn ends.

Abstract: A sewing machine with a needle thread cassette, wherein a cassette mount (3) is reduced in size. The cassette mount (3) including a thread take-up lever travel region is formed in the form of a vertical groove in the arm head of the sewing machine. A needle thread cassette (2) having a thread bobbin (62) vertically received therein is removably mounted on the cassette mount (3) vertically from above. With a thread take-up lever (25) stopped in a position corresponding to a needle top stop position, the needle thread cassette (2) is mounted on the cassette mount (3), whereby the thread is engaged with the thread guard of the thread take-up lever (25) and a thread tension regulator (9).

Abstract: A stitching apparatus is disclosed which has at least one active thread feeder and is operable to adjust stitching operation based on the condition of a thread being stitched. The active thread feeder is operable to feed thread from a spool to a needle assembly, where the thread is stitched into fabric. The stitching apparatus includes at least one thread sensor. The thread sensor outputs information related to thread tension, which is received at a control which includes a first controller, and the first controller is used for controlling the thread. The control can calculate a thread feed length, and activate the active thread feeder to feed the appropriate amount of thread to the needle assembly. The control can use information from the thread sensor to adjust thread tension by adjusting the active thread feeder. The control can also detect a break in the thread, or a break in an underthread which is located in a lower arm assembly and is used to lock stitches.

Abstract: A stitching apparatus is disclosed which has at least one active thread feeder and is operable to adjust stitching operation based on the condition of a thread being stitched. The active thread feeder is operable to feed thread from a spool to a needle assembly, where the thread is stitched into fabric. The stitching apparatus includes at least one thread sensor. The thread sensor outputs information related to thread tension, which is received at a control which includes a first controller, and the first controller is used for controlling the thread. The control can calculate a thread feed length, and activate the active thread feeder to feed the appropriate amount of thread to the needle assembly. The control can use information from the thread sensor to adjust thread tension by adjusting the active thread feeder. The control can also detect a break in the thread, or a break in an underthread which is located in a lower arm assembly and is used to lock stitches.

Abstract: A sewing apparatus includes a hollow needle that can pass through a work cloth, and a needle cover that has a passing hole through which the needle passes and holds the work cloth. The needle cover functions as a presser foot and holds at least a part of a thread between a previous stitch point where a stitch has been previously made and a succeeding stitch point where a stitch is to be currently made. Accordingly, sewing can be performed on the workpiece without use of a lower thread.

Abstract: A sewing machine includes a thread cassette having a thread accommodating cavity in which a supply of thread is accommodated, a cassette mount to which the thread cassette is detachably attached, a thread tensioner adjusting a tension of the thread drawn from the thread cassette, a detachment operating member operated so that the thread cassette is detached from the cassette mount, and a thread tension control controlling the thread tensioner so that the thread is set at a predetermined tension when the detachment operating member has been operated.

Abstract: A thread holding mechanism for sewing machines is disclosed holding a thread when the thread is passed through an eye of a sewing needle. The mechanism includes a thread holding member including a thread holding portion capable of holding the thread, an operating force transmitting member to which an external force is applied, a moving member to which the operating force transmitting member transmits the force, moving the thread holding member near the eye of the needle, and a thread nipping member provided in the thread holding member for releasably nipping the thread, a switching member provided near a movement path of the thread holding member for switching the thread nipping member to an interposition releasing side temporarily prior to thread holding in synchronization with a predetermined stage of a step of moving the thread holding member.

Abstract: A threading apparatus for threading a thread guide of a sewing machine includes a moving member, a pivot arm, and a hook member pivotally mounted on the moving member and coupled to the pivot arm so as to be operated in synchronization with the pivot arm. The hook member has a threading hook and performs a first rocking switching the hook member from a standby position where the threading hook is not threaded to an operating position, based on action of an operating force upon rotation of the pivot arm. The hook member further performs a sliding movement in which the hook member is slid from the operating position together with the pivot arm and the moving member to thread the thread guide and a second rocking in which the hook member is rocked to be returned to the standby position after having threaded the thread guide.

Abstract: A thread winder unit, which is capable of winding thread of spools set on spool bars, is removably attached to a machine body. The sewing machine includes a feed motor for feeding the thread during sewing, an upper thread state detecting sensor disposed between the feed motor and the thread winder unit for detecting tensed thread, and a CPU for controlling thread winding operations based on a signal from the upper thread state detecting sensor. The sewing machine intermittently drives the feed motor in a reverse direction to that in the sewing to feed the thread toward the thread winder unit, every time the upper thread state detecting sensor detects the tensed thread, and the thread winder unit winds the fed thread around the spool. The CPU, recognizing the thread wound by a given amount, stops winding.

Abstract: A thread guide device for a sewing machine comprises thread transfer means 10 and threading means. The thread transfer means 10 includes a thread holding portion 30 capable of holding an upper thread, and the upper thread is held in an upper thread holding position by the thread holding portion 30 and is thus transferred to the vicinity of a lower needle eye. The threading means inserts, into the needle eye, the upper thread transferred to the vicinity of the needle eye by the thread transfer means 10.

Abstract: An oblique thread-guiding link of a sewing machine, including a swing arm having a front swing arm and a rear swing arm and formed with a central shaft hole. A pivot shaft is fixedly fitted in the shaft hole of the swing arm. Two ends of the pivot shaft are obliquely pivotally mounted in two opposite sidewalls of the housing of the sewing machine. One end of the pivot shaft protrudes from the housing of the sewing machine. The front end of the front swing arm is positioned above a needle holder mechanism and aligned and coupled therewith. The rear end of the rear swing arm is positioned above a driving mechanism and aligned and coupled therewith. One end of a thread-guiding fixing seat is fixedly connected with the protruding end of the pivot shaft and can be swung along with the swing arm.

Abstract: A sewing machine includes a supporting plate portion and a needle. The supporting plate portion contacts sewing fabric that is moved in a predetermined direction during a sewing operation. The needle is vertically moved between a top dead center above the supporting plate portion and a bottom dead center below the supporting plate portion. The supporting plate portion has a needle hole through which the needle passes. The lower end opening of the needle hole is larger than the upper end opening.

Abstract: A sewing apparatus such as a household sewing machine includes a needle bar on which a sewing needle is mounted, a needle bar vertically moving mechanism vertically moving 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 threading mechanism operated in synchronization with attachment of the thread cassette to the cassette mount when the needle bar is stopped at a predetermined position, the threading mechanism passing the thread drawn from the thread cassette through an eye of the needle mounted on the needle bar, and a threading limiting unit limiting the threading mechanism so that the threading mechanism is inoperative in a case where the thread cassette is attached to the cassette mount when the apparatus is disconnected from a power supply.

Abstract: An engaging pin, protruding in a front and rear direction of a sewing apparatus from an end portion of a swing arm, includes a shaft portion and a head portion provided at a free end of the shaft portion. A U-shaped engagement groove is formed at one end portion of a periphery of a housing case of a sewing cartridge, and is attached to and detached from the engaging pin provided in the sewing apparatus. The engagement groove includes a narrow groove portion, which engages the shaft portion, and a wide recessed portion, which engages the head portion. The narrow groove portion and the wide recessed portion are connectedly provided each other. The narrow groove portion includes connecting portions. The connecting portions are inclined so that an opening of the engagement groove becomes wider toward a periphery of the housing case.

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 apparatus is disclosed in which a thread cassette holding a needle thread wound is used. The sewing apparatus includes a cassette mount to which the thread cassette is detachably attached, a carrier carrying the thread cassette between an attachment start position and an attachment finish position in the cassette mount and a control device for controlling the carrier.

Abstract: A sewing machine includes a thread cassette having a thread accommodating cavity in which a supply of thread is accommodated, a cassette mount to which the thread cassette is detachably attached, a thread tensioner adjusting a tension of the thread drawn from the thread cassette, a detachment operating member operated so that the thread cassette is detached from the cassette mount, and a thread tension control controlling the thread tensioner so that the thread is set at a predetermined tension when the detachment operating member has been operated.

Abstract: A sewing apparatus such as a sewing machine includes a sewing mechanism in which a thread is used, a cassette mount to which a thread cassette holding the thread used in the sewing mechanism is detachably attached, a determining unit determining a type of the thread cassette attached to the cassette mount, and a control device controlling the sewing mechanism according to the type of the thread cassette determined by the determining unit.

Abstract: A thread winder unit, which is capable of winding thread of spools set on spool bars, is removably attached to a machine body. The sewing machine includes a feed motor for feeding the thread during sewing, an upper thread state detecting sensor disposed between the feed motor and the thread winder unit for detecting tensed thread, and a CPU for controlling thread winding operations based on a signal from the upper thread state detecting sensor. The sewing machine intermittently drives the feed motor in a reverse direction to that in the sewing to feed the thread toward the thread winder unit, every time the upper thread state detecting sensor detects the tensed thread, and the thread winder unit winds the fed thread around the spool. The CPU, recognizing the thread wound by a given amount, stops winding.

Abstract: A thread cassette in the form of a cassette-like plastic box adapted for holding two bobbins of thread. Once assembled with the bobbins disposed therein, the cassette cannot be reopened. The cassette casing enables thread therein to be easily and readily dispensed on demand. The plastic box features an integral cylindrical element which fits a standard sewing machine spool spindle. A single-bobbin casing is another embodiment of the invention. The two-bobbin embodiment may be used for supplying thread to a two-needle sewing machine.

Abstract: A thread guide device for a sewing machine comprises thread transfer means 10 and threading means. The thread transfer means 10 includes a thread holding portion 30 capable of holding an upper thread, and the upper thread is held in an upper thread holding position by the thread holding portion 30 and is thus transferred to the vicinity of a lower needle eye. The threading means inserts, into the needle eye, the upper thread transferred to the vicinity of the needle eye by the thread transfer means 10.

Abstract: An upper thread cassette includes a cassette member having a cassette body formed of synthetic resin material and a cassette cover that opens or closes the cassette body, a thread wound member mounting part that mounts thereon a thread wound member winding an upper thread therearound and is provided inside the cassette member, a cutting mechanism that cuts the upper thread supplied from the thread wound member mounted on the thread wound member mounting part, and a thread end holding member that holds an end of the upper thread cut by the cutting mechanism.

Abstract: An automatic non-bobbin lower thread-supplying apparatus for industrial sewing machine is introduced to resolve a limited lower thread-supply problem on a conventional bobbin of hook, which the problem will lead to frequent work on replacing the bobbin during a sewing operation and obviously is both time-consuming and quality-reducing. In the present invention, the conventional bobbin is abandoned by providing a throughout center aperture to a lower shaft that drives the hook. The center aperture forms a passage for the lower thread from a center hole of a transmission gear at one end of the lower shaft to the center of hook at another end thereof. By providing the center aperture of the lower shaft, the lower thread can be introduced from outsides of the sewing machine and directly supplied to the hook without frequently replacing the bobbin during the sewing operation.

Abstract: A feeding device for a hemstitching machine includes a base having a feeding end with a protrusion extending from the feeding end and being inclined relative to the plane of the base. A slot is longitudinally defined in the base opposite to the feeding end. A sliding shuttle is slidably mounted on the base and has a groove defined to correspond to the protrusion of the base. The sliding shuttle includes two opposite sides each having a positioning plate attached to the sliding shuttle. A rotating shuttle rotatably attached to the base includes a U-shaped pivot seat pivotally attached to the base. A torsion spring is mounted in the pivot seat and secured between the pivot seat and the base. A drive arm extends from the pivot seat and a handle extends from the bottom of the pivot seat.

Abstract: An adapter for mounting a cone spool on the spool pin of a regular home type sewing machine. The adapter has a truncated conical upper end portion that inserts into the lower open end of a cone type spool. There is an aperture in the body that slip fits onto the vertical pin on the sewing machine and a second aperture offset from the axis of the adapter to slip fit onto a horizontal spool pin of sewing machines so equipped. A slender rod like member is mounted on and projects upwardly from the adapter and terminates in an eyelet to guide the thread as it leaves the spool.

Abstract: A sewing machine having a threading device is disclosed, the sewing machine comprising a needle bar having a needle attached to the lower end thereof, the needle having a needle eye, a threading shaft having a threading member mounted to the lower end thereof, the threading member having a threading hook, a drive motor for vertically moving the threading shaft along the needle bar, guide means for guiding and rotating the threading shaft at a threading position as the same is vertically moved, a regulating member for deciding the threading position of the threading shaft, wherein the threading shaft is moved down and stopped at the threading position and is axially rotated to pass the treading hook through the needle eye and is maintained in this state until a return signal is given such that the drive motor is driven again to pull the threading hook out of the needle eye and move up the threading shaft.

Abstract: A sewing cartridge includes a housing case and an openable cover. The housing case has a housing area for accommodating a thread therein, and the openable cover has a thread holding mechanism for holding the thread supplied from the housing area. In the sewing cartridge, the housing case is movable with respect to the openable cover. While the thread supplied from the housing area is hold, the sewing cartridge is attached to a sewing apparatus. In this state, when the housing case is moved up and down with respect to the openable cover, a predetermined length of the thread can be drawn from the housing area while the thread holding mechanism holds the thread with an adequate holding strength.

Abstract: A multineedle embroidering sewing machine comprising at least one sewing machine head provided with a plurality of needle bars and a plurality of thread take-up levers corresponding to the needle bars, needle thread deflecting sections, respectively, arranged upstream of the respective thread take-up levers existing in needle thread paths, and thread take-up members provided correspondingly on the respective needle thread deflecting sections.

Abstract: A honeycomb shaped spool holder for use with sewing machines having at least one upstanding spool support spindle, comprising an inner cylindrical hub which has a central bore extending therethrough for vertically receiving the spindle of a sewing machine in such a manner as to permit the holder to freely rotate thereabout as the thread is dispensed. The spool holder further comprises an outer member having an overall truncated conical configuration sized and shaped to frictionally engage the interior surfaces of a cone shaped spool core, and has a plurality of partition walls extending in an axial direction between the inner hub and the outer member such that a spoke or honeycomb pattern is formed. The partition walls help to sufficiently strengthen the structure of the spool holder, so that the spool holder can withstand a wide range of dynamic forces that may be applied thereto while it rotates at a high angular velocity about the spindle as the thread is drawn from the thread spool.

Abstract: A single-piece, integral article having spaced parallel, open end prongs frictionally fitted on the prongs of a conventional presser foot on a sewing machine. The article has a pin which, when the article is applied in place, is spaced horizontally from the needle in the sewing machine, and the sewing thread is wrapped around the pin and held from becoming entangled.

Abstract: Disclosed is a thread feeding apparatus for an automatic embroidering machine. The apparatus is comprised of a head stem having a needle-working unit; a thread supplying unit supplying a colored thread selected among a plurality of threads; a guide pipe assembly provided at said head stem, having a first guide pipe receiving the thread from said thread supplying unit, and a second guide pipe having an upper end spaced axially from said first guide pipe and a lower end adjacent to said needle-working unit; and a thread taking-up unit having a take-up lever moving up and down across a thread transferring path, and a take-up bar coupled with the take-up lever in a transverse direction relative to movement of the take-up bar, moving reciprocally through a space between said first and second guide pipes according to the movement of said take-up lever, to allow said thread to be strained or loosened.

Abstract: An apparatus for removing a thread tail from a hole in a presser foot on a quilting machine. The apparatus has an orifice providing a stream of pressurized air that applies a force against a section of the thread tail extending between the needle and the hole in the presser foot. The pressurized air stream pulls the thread tail through the hole in the presser foot and gathers the thread tail on an upper side of the presser foot. In another embodiment, the present invention includes a method of automatically applying a generally transverse force to a portion of the thread tail extending between the needle and the hole in the presser foot for a duration sufficient to remove the thread tail from the hole in the presser foot.

Abstract: A tufting machine for inserting yarns into stitching in a base fabric, the machine having at least one needle bar, a reciprocating carrier for the needle bar, a support for a base fabric in a plane substantially transverse to the reciprocation direction of said carrier, needles carried by the needle bar(s) for penetrating a base fabric, and a device for delivering a stream or sheet of air adjacent the base fabric plane toward the needles and substantially parallel to that plane, the air stream or sheet moving faster than and in substantially the direction of movement as a base fabric being tufted by the machine, for aligning substantially parallel to the direction of base fabric movement fiber or yarn tails extending from the needles.

Abstract: A buttonhole sewing machine comprises a needle thread feeding mechanism, in which the needle thread is guided over a cam disk, which performs a rotation during two stitches of the needle. Along its periphery, the cam disk has such a curvature that tensioning and releasing the needle thread complies with the requirements of alternately sewing a single thread chain stitch and a double thread chain stitch during the sewing of a zigzag buttonhole seam.

Abstract: The invention is a removable attachment to the bobbin winder of a conventional sewing machine. It installs on a bobbin winder in lieu of a bobbin at one end and connects to a conventional spool at the opposite end. It provides for continuous winding of thread or yarn onto the spool by preventing disengagement of the bobbin winder. The invention consists of a flanged post which installs onto the bobbin winder's spindle. The post is long and narrow enough to avoid the bobbin winder's disengagement mechanism. This function eliminates the need for hand winding of spools. Once full, said spool may be used normally with any conventional sewing machine, serger, or knitting machine.

Abstract: An upper thread supply device includes a drive roller 50 and two slave rollers 52, 54. The slave roller 52 has a thread contacting portion 52a formed from a soft metal. The slave roller 54 has a thread contacting portion 54a formed from a resilient material. The drive roller 50 is formed from a hard metal. A thread is supplied by the upper thread supply device following a thread feed pathway. The drive roller 50 and the soft metal thread contacting portion 52a sandwich the thread at one position along the thread feed pathway and the drive roller 50 and the resilient thread portion 54a sandwich the thread at a separated position along the thread feed pathway. The resilient thread contacting portion 54a is positioned downstream from the position where the thread is sandwiched by the hard metal thread contacting portion 54a and the soft metal thread contacting portion 52a.

Abstract: A holder for sewing machine bobbins containing thread which will be used with a serger. The holder has an aperture with a grommet therein that will fit the spindle on any brand of serger and will secure the holder on the serger. The holder also includes a plurality of spindles which will hold the sewing machine bobbins, and a cover with apertures through which the threads can be extended to connect to the serger.

Abstract: A thread feeding apparatus for a sewing machine which has a simplified mechanism for accuracy of manufacturing and improved durability so as to accommodate high speed sewing. The thread feeding apparatus for the sewing machine has upstream grippers for respectively gripping an upper looper thread and a lower looper thread, closed by a stitch forming device at the time of the stitch forming and opened at the time of the cloth feeding, downstream grippers for gripping the respective threads introduced from the respective upstream grippers, opened at the time of the stitch forming so that the respective threads are pulled by the stitch forming device and closed at the time of cloth feeding, and reciprocators which are respectively driven in a synchronous manner with a left needle, a right needle, an upper looper and a lower looper, at the time of cloth feeding.

Abstract: A stitching head for a computer numerically controlled stitching machine includes a thread tensioning mechanism for automatically adjusting thread tension according to the thickness of the material being stitched. The stitching head also includes a mechanism for automatically adjusting thread path geometry according to the thickness of the material being stitched.

Abstract: A spool holder and threading device for holding one or more spools of thread thereon and feeding thread to an adjacent sewing machine. The device provides for convenient storage of a plurality of spools of thread and bobbins next to the sewing machine. The holder and threading device allows for a quick change of different colors of thread. The device includes a horizontal platform adapted for receipt on a sewing table or the like. An upright "Y" shaped spindle support is mounted vertically on the platform. A front profile of the spindle support is similar to a profile of a standard sewing machine. The "Y" shaped spindle support includes base with an elongated first support arm and a shorter second support arm. The support arms extend outwardly and horizontally from the base with the ends of the support arms extending upwardly and vertically. The elongated first support arm allows for sewn material to pass thereunder without restriction during the sewing operation.