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7536963 |
Device for monitoring the needle thread
A monitoring device ( 15 ) for monitoring the needle thread ( 9 ) on a sewing machine ( 1 ) is provided which includes a regulator spring ( 25 ) with at least one cam switch ( 39 ) being connected...
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7493866 |
Thread tension device for sewing machine
A thread tension device includes paired thread tension discs holding a needle thread, a thread tension spring biasing one of the discs toward the other, a thread tension dial adjusting a tension...
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7475647 |
Sewing machine for stitching with a composite thread
The present invention provides a sewing mechanism which is useful for joining fabrics with a brittle thread. The invention provides a sewing mechanism having a needle for stitching a brittle fiber...
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7461605 |
Thread control device employing a thread brush, for a sewing machine
A sewing machine having a reciprocatory needle and a reciprocatory thread-take-up device to deliver thread to the needle employs a thread control device located between the thread take-up device...
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7430973 |
Thread tension mechanism and sewing machine
A thread tension mechanism and a sewing machine includes a thread tension dial, a pair of thread tension discs and a dial shaft secured unrotatably to an element constituting a body of the thread...
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7370592 |
Sewing machine
Sewing machine includes a tension detection section ( 26 ) for detecting tension acting on a sewn material (A) paid out from a rotary holder member, and a drive section for driving the rotary...
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7308333 |
Computerized stitching including embroidering
A stitching apparatus with thread tension control is provided. Tension in a thread is monitored during stitching apparatus operations, and remedial action is taken in response to the detection of...
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7225747 |
Control of thread feed for a sewing machine
A sewing machine including an upper thread supply to a needle, a loop taker accommodating a bobbin for a bottom thread, a drive unit which through coupling elements affects a number of mechanical...
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7111568 |
Cover stitch sewing machine
In a cover stitch sewing machine which forms double chain stitch seams, needle threads are pulled out from the needle thread tensioning devices, passing over a thread hanging point on a needle...
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7069869 |
Thread tension regulating apparatus for an over-lock sewing machine
A thread tension regulating apparatus for an over-lock sewing machine is disclosed, wherein there are provided between an adjusting knob and a home position returning lever a first interlock device...
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7007777 |
Thread brake and textile machines and thread feed devices equipped therewith
The invention relates to a thread brake with a holding means ( 17 ), a bearing pin ( 25 ), which has an assembly section ( 24 ) disposed in the holding means ( 17 ) and a bearing section ( 26 )...
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7000868 |
Thread storage and dispensing apparatus
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...
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6957616 |
Restoring device of tension adjusting device for sewing machines
A restoring device of a tension adjusting device in a transverse arm for a sewing machine includes a main part which has an active member and a passive member on two sides thereof so as to drive...
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6932009 |
Thread tension adjustment device of multi-needle sewing machine
A thread tension adjustment device of multi-needle sewing machine including: a fixing rack fixed on a housing of the sewing machine; multiple frame bodies side by side fixed on the fixing rack;...
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6901871 |
Bobbin case assembly with thread tensioning element and method of drawing thread from a thread supply
A bobbin case assembly having a wall structure mountable upon a support, a bobbin for a supply of thread, and a tensioning element for engaging thread projecting from a supply of thread on the...
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6883448 |
Sewing apparatus and informing control program therefor
A sewing apparatus such as a sewing machine includes a cassette mount to which a thread cassette having a thread accommodating section for accommodating a thread supply is detachably attached, at...
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6843189 |
Sewing machine having a thread tension adjusting device
A sewing machine includes a thread tension adjusting device, and a thread tension releasing device. The thread tension adjusting device includes a thread press member formed with a release...
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6776113 |
Sewing machine with thread tension control function and thread tension control program therefor
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...
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6595150 |
Thread tension control device for a sewing machine
A pair of tension discs is disposed on a tension stud fixed in part of a sewing machine main body. A pneumatic cylinder has a drive rod. The drive rod moves at least one of the tension discs to...
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6237515 |
Buttonhole sewing machine
A buttonhole sewing machine for the production of buttonholes on a work-piece comprises a thread feeding mechanism on the path of a needle thread which is fed in a direction of delivery. The thread...
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6198983 |
Table-driven software architecture for a stitching system
Native code for a CNC stitching machine is generated by generating a geometry model of a preform; generating tool paths from the geometry model, the tool paths including stitching instructions for...
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6152057 |
Bobbin assembly incorporating a thread tensioning assembly and method of controlling the payout of thread from a bobbin assembly
The combination of a bobbin case assembly and a supply of thread. The bobbin case assembly has a wall structure defining a receptacle for the supply of thread and a thread tensioning assembly on...
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6095069 |
Double-thread chain-stitch sewing machine
A double thread chain-stitch sewing machine with a platform containing a needle, a needle plate with a slot, a pressing leg, a looper and a toothed rack for transporting a material, characterized...
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6089172 |
Lock stitch sewing machine with automatic thread tension adjusting device
A lock stitch sewing machine with an automatic thread tension adjusting device is disclosed, wherein the sewing machine has a plurality of thread tension adjusting mechanisms 7, each of which...
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6055920 |
Sewing machine with both needle bar rocking and thread tension releasing mechanisms actuated by single actuator
A sewing machine includes a needle bar rocking mechanism for rocking a needle bar in a direction crossing a direction in which a workpiece cloth to be sewn is fed, a thread tension applying...
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6053216 |
Weaving machine pile warp thread tensioning and drawing-back device
A thread tensioning and drawing-back device for pile warp threads of a weaving machine, which device comprises provisions (2) for braking, by spring elements, pile warp threads (4) taken up by a...
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6050205 |
Sewing machine with thread tension releasing mechanism
A sewing machine includes a thread tension applying mechanism for applying tension to a needle thread supplied from a needle thread supply source to a sewing needle, a thread tension releasing...
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6012405 |
Method and apparatus for automatic adjustment of thread tension
A computerized stitching apparatus that automatically controls thread tension is disclosed. In one embodiment, at least two factors are used to determine the desired thread consumption for the next...
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5934212 |
Two part sewing system for large work pieces
This invention relates to an improved automatic sewing machine apparatus for sewing large articles, in lock-stitch or chain-stitch, employing two completely different upper and lower sewing...
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5931107 |
Advanced stitching head for making stitches in a textile article having variable thickness
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...
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5868089 |
Needle thread restraining device in a thread cutting sewing machine
A needle thread restraining device in a thread cutting sewing machine comprising a needle thread restraining device 18 which is disposed on a needle thread path between a needle take-up mechanism...
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5816175 |
Thread control apparatus for a double chain stitch sewing machine
A thread control apparatus for a double chain stitch sewing machine of the present invention is applied to the case of sewing a cloth with a double chain stitch sewing machine having multiple...
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5806448 |
Overlock sewing machine
An overlock sewing machine which can readily form a rolled seam with no requirement for a complicated tension adjusting operation is disclosed. In this overlock sewing machine, an auxiliary thread...
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5603462 |
Changing threads in a sewing machine
A sewing machine is provided for splicing together two different threads. The machine includes a thread tree with a number of thread spools with each thread thereof being inserted through flexible...
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5573192 |
Thread tensioning device for a sewing machine
A thread tensioning device for a sewing machine includes two plates engaged on a shaft and a spring for biasing the plates toward each other in order to clamp a thread. The plates each includes a...
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5533460 |
Thread tension device with latch for a sewing machine
A thread tension device includes a pair of discs engaged on a shaft and a spring for biasing the discs to clamp a thread. A follower is threadedly engaged on the shaft for adjusting the spring. A...
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5513587 |
Thread tensioning for chain stitch sewing machine
In a multi-needle double chain stitch sewing machine, when forming a thread chain after forming a seam without using upper cover thread, formation of loop or excess looseness of the right needle...
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5495816 |
Multi-needle sewing machine with thread tension control
In a two-needle sewing machine for making an ornamental stitch without a cover stitch, at least one intermediate lug (17) is provided which is disposed in side by side relation with respect to an...
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5487347 |
Looper thread paying-out apparatus for sewing machine
The present invention provides a looper thread paying-out apparatus of sewing machine in which apparatus a variation of paying-out tension of the thread from a bobbin does not affect a seam. Just...
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5404824 |
Needle thread feed control apparatus for sewing machine
A thread control apparatus having first and second thread retainer or holder mechanisms on a thread path, a feed passage control mechanism adapted to obtain the thread in a zig zag form between the...
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5381744 |
Stitch balancing thread tension device for sewing machine
A stitch balancing thread tension device for a sewing machine, the body of which is inserted into the opening portion of the sewing machine body, wherein the thread tension device body for...
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5377606 |
Thread tensioning device for sewing machine
A thread tension device for overlock sewing machines, which provides a thread tensioner and a regulator. The thread tensioner includes a pair of thread tensioning discs supported on a rotatable...
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5299517 |
Thread tension adjusting apparatus for a sewing machine
A thread tension adjusting apparatus, used in a sewing machine, adjusts tension of a supplied thread by adjusting a thread holding force. The apparatus is provided on a thread supply path running...
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5265548 |
Thread tension apparatus
The thread tension regulating apparatus comprises; thread tension setting means for selecting and setting thread clamping pressure to the right pressure coping with plural kinds of the stitches;...
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5216970 |
Mode changer with stitch length, width, and thread tension adjustments
A stitching mode changer for an overlock machine which enables stitching modes, i.e., ordinary overlock stitching, standard roll hemming, and special roll hemming, to be changed by a one-touch...
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5211122 |
Thread tension device for a sewing machine
A thread tension device including a plate fixed on a sewing machine, a bolt rotatably engaged in the plate, a pin engaged on the plate, a dial rotatably engaged on the bolt and having a number of...
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5191847 |
Tension regulating device
A tension regulating device can set an indicating value of a thread tension. The tension regulating device comprises a regulating nut which is screwed into the male portion of a tension regulating...
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5156105 |
Thread tension adjusting device for a sewing machine
A device including an axle rotatably supported in a sewing machine, a shaft fixed in parallel to the axle, one or more cams fixed on the axle, a lever having one end pivotally fixed and having the...
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5113774 |
Thread cutting device on a sewing machine
A thread cutting arrangement for sewing machines including an arrangement in which the tension of the thread is released in both directions of movement of an axially moveable drive mechanism such...
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5042408 |
Sewing machine having thread cutting mechanism and method for minimizing length of leading end portion of needle thread
A sewing machine provided with a thread cutting mechanism and a needle thread tension release mechanism. Normally, the needle thread is subjected to a proper tension by a thread tension regulating...
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