Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 7124697 | Apparatus for monitoring and controlling thread tensioning force in a sewing machine A thread tensioning device or apparatus for a sewing machine enables accurate, repeatable measurement and monitoring of the compression forces applied to the thread tensioning discs thereof. The apparatus further includes a visual display or output corresponding to ... | 10/24/2006 |
| 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 for displacing a home position returning lever in response to motion... | 07/04/2006 |
| 7066543 | Powered fold-flat seat hinge assembly A fold-flat hinge assembly for use with a seat assembly includes an arm pivotably supported by a support member and adapted to support the seat back, as well as a gear fixedly attached to a shaft that is rotatably supported within a first slot of the support member.... | 06/27/2006 |
| 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; multiple thread tension adjustment units mounted on the frame bodies, ea... | 08/23/2005 |
| 6904853 | Take-up cam phase adjustment structure of looper thread take-up apparatus of a sewing machine A take-up cam phase adjustment structure of looper thread take-up apparatus of a sewing machine includes a rotary shaft rotatablly mounted in the sewing machine. A thread-guiding plate mounted on the housing for correspondingly pressing a stitching thread against th... | 06/14/2005 |
| 6101961 | Thread feeding apparatus for sewing machine 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 re... | 08/15/2000 |
| 5983818 | Sewing machine with thread tensioning and take up levers A sewing machine that has at least one needle which moves with alternating motion, taking the upper thread through the piece to the sewn, a shuttle to hook an upper thread to form a loop below the piece to be sewn, a bobbin housing in a bobbin-case locate... | 11/16/1999 |
| 5934211 | Thread feeding apparatus for sewing machine 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 re... | 08/10/1999 |
| 5860376 | Thread tension device for sewing machine A thread tension device for a sewing machine includes two or more pairs of discs for engaging with two or more threads. Two or more tension applying members are engaged with the pairs of discs for applying a biasing force against the pairs of discs. Two o... | 01/19/1999 |
| 5799599 | Chain-stitch sewing machine with yarn feed adjusting A apparatus for forming a knot where a knot is formed in chain-stitching. In the method, a first loop is formed by a stitch to an article to be sewn, two stitches ahead of a final stitch, is drawn through a second loop which is formed by a stitch one stit... | 09/01/1998 |
| 5752642 | Thread clamping apparatus An apparatus for clamping an individual thread out of a plurality of threads, which are guided in side-by-side relationship, includes a transport unit with a drivable transport shaft and a rotatable contact pressure shaft. A thread is guided between the s... | 05/19/1998 |
| 5711238 | Overlock sewing machine An overlock sewing machine which can switch its operation from an ordinary over-edge chain stitch to a rolled seam or vice versa with no requirement for a complicated operation of adjusting thread tension is obtained. This overlock sewing machine is provi... | 01/27/1998 |
| 5680827 | Sewing machine having lower-thread tension changing device A sewing machine includes a stitch forming device which forms stitches on a work sheet by locking an upper and a lower thread with each other, and a tension changing device which changes a tension of the lower thread to stop supplying of the lower thread ... | 10/28/1997 |
| 5471941 | Incrementally rotatable thread feeding device for sewing machines A thread feeding device for a sewing machine, is simply constructed but can feed a plurality of looper threads individually in amounts necessary for each seam with adjustment of the tensions of the looper threads by one adjustment knob. The thread feeding... | 12/05/1995 |
| 5381745 | Method of sewing a seam and a sewing unit therefor A multi-needle chain-stitch seam is secured against unravelling and loosening by the following steps: A beginning region (A) of the seam is formed with short needle thread loops (6,7) an intermediate region (B) of the seam is formed with long needle threa... | 01/17/1995 |
| 5363786 | Thread tensioning device having an electromagnet for applying a variable force opposing rotation of a tensioning element A thread tensioning device comprising a stationary electromagnet mounted on a sewing machine arm and a tensioning wheel having a relatively low mass. The tensioning wheel is rotatable concentric to a longitudinal axis of the electromagnet and is mounted o... | 11/15/1994 |
| 5345887 | Thread manipulations at the beginning and end of a seam A thread-pulling device is fastened on the arm of a sewing machine. The thread-pulling device has a thread clamp that can be opened and closed on the thread, and can be moved toward and away from the sewing machine arm. In operation, the needle thread, wh... | 09/13/1994 |
| 5315945 | Apparatus and method for thread supplying in a chain stitch sewing machine An apparatus and a method for supplying thread in a chain stitch sewing machine are disclosed, the apparatus comprising a needle vertically reciprocating between a top end point and a bottom end point in one sewing cycle; a looper horizontally reciprocati... | 05/31/1994 |
| 5307750 | Method and apparatus for chaining in sewing machine An apparatus and method for maintaining the continuity of a free thread chain between successively sewn fabric parts by tensioning the free thread chain with a puller roller activated by drive means responsive to the sensing of the edges of the fabric par... | 05/03/1994 |
| 5249538 | Sewing apparatus equipped with an automatic thread supply device A sewing apparatus displays a stitch pattern and forcibly supplies a thread based on the displayed stitch pattern. The apparatus comprises a sewing mechanism, an automatic thread supply device, a key input unit, a memory, a selector and a display. The sew... | 10/05/1993 |
| 5179980 | Weft yarn brake with logic circuit control A yarn brake which can be used in projectile looms and rapier looms is actuated by a stepping motor with the rotational movement of a drive shaft of the stepping motor being converted to a linear movement of the braking member of the yarn brake.... | 01/19/1993 |
| 5138961 | Thread supply device used in a sewing apparatus with a plurality of needles In a thread supply device used in a sewing apparatus having a plurality of needles and a looper mechanism, needle threads guided to the needles and a looper thread guided to the looper are cut by a thread cutting unit at a cutting position, which is off a... | 08/18/1992 |
| 5056446 | Automatic thread supply device An automatic thread supply device for a conventional overlocking sewing machine is disclosed. Each of a needle thread, an upper looper thread and a lower looper thread is supplied to a thread supply roller but the supply is stopped for an optimum period b... | 10/15/1991 |
| 5048438 | Sewing machine bobbin thread tension control device The feed dog (17) for the fabric in a sewing machine is provided with a spring-wire (21) bent and passing through a hole of a support (23). When the feed dog (17) is in its upper position, the support (23) abuts the plate (18), which lowers the end (24) o... | 09/17/1991 |
| 5042407 | Device having adjacent plates with thread gripping surfaces for controlling thread tension therebetween A device is provided for controlling the tension of a longitudinally moving thread. The device includes at least two adjacent plates which are applied one against the other and between which the thread passes. The plates, and thus the thread, can be tight... | 08/27/1991 |
| 5022335 | Upper thread supplying device in sewing machine An upper thread carried by a vertically reciprocating needle is drawn from a bobbin through a tensioning device, a supply device and a take-up lever. A predetermined amount of the upper thread is first supplied by actuating the supply device, while applyi... | 06/11/1991 |
| 5003900 | Thread securing device in a sewing machine A thread securing device in a sewing machine wherein an upper thread located along a thread guiding path is caught during the travel of a thread take-up member to effect automatic hooking of the thread thereto. The thread securing device includes a thread... | 04/02/1991 |
| 5001997 | Sewing mechanism for quilting machine A sewing apparatus for use on a quilting machine having an intermittent tension mechanism and a hopping presser foot mechanism cooperating with eccentric cams located on the main drive shaft of the sewing apparatus. The intermittent tension mechanism includes ... | 03/26/1991 |
| 5002098 | Device for braking a weft thread in a weaving machine A thread brake for braking a weft thread in a weaving machine includes a rigid stop and an elastically deformable blade which has a free end supported to press resiliently against the rigid stop. Thread guides are provided to guide weft threads between th... | 03/26/1991 |
| 4998491 | Method of automatically controlling upper thread tension in a sewing machine A method of automatically controlling thread tension in a sewing machine according to which a first thread tension device is provided between an upper thread source and a thread take-up lever, and a second thread tension device is provided between the fir... | 03/12/1991 |
| 4967679 | Automatic thread tension control sewing machine An automatic thread tension control sewing machine comprising thread tension controller for clamping an upper thread with a predetermined pressure to control an amount of the upper thread supplied to a needle and a loop taker, thread tension setting means... | 11/06/1990 |
| 4960062 | Sewing machine automatic thread tension device with thread elongation detector A sewing machine includes an automatic thread tension adjusting device comprising an upper thread tension member arranged in an a thread running path between an upper thread source and a main thread take-up lever. An auxiliary thread take-up lever is arra... | 10/02/1990 |
| 4938158 | Lower thread supplying mechanism for a sewing machine A sewing machine having a vertically reciprocating needle carrying an upper thread, a needle plate secured to a sewing machine housing and provided with a needle penetrating hole, a loop-taker arranged below the needle plate and operated in synchronism wi... | 07/03/1990 |
| 4920903 | Device for adjusting a lower thread in a sewing machine A lower thread tension adjusting device for a sewing machine comprising first and second tension arrangements mounted on a bobbin carrier of the sewing machine for tensioning a lower thread with a predetermined tension and a predetermined additional tensi... | 05/01/1990 |
| 4886004 | Needle thread tension control including separate stopping and adjustable pre-tension devices In a sewing machine provided with a thread supply stopping device for selectively controlling supply of a needle thread between a needle thread supply source and a take-up lever, an adjustable pre-tension exerting device exerts a tension equal to or lower... | 12/12/1989 |
| 4886005 | Thread undercut attachment for a multi-needle sewing machine A thread undercut attachment for use on multi-needle sewing machines uses a single piston actuated cutting blade which passes through the sewing area beneath the workpiece and above the loopers. To prevent the needles and loopers from becoming unthreaded ... | 12/12/1989 |
| 4873931 | Programmed thread regulating apparatus for a sewing machine A thread regulating apparatus for a sewing machine having a plurality of thread regulators. Each regulator nips a thread between a pair of tension discs to apply tension to the thread. The tension applied to the thread is determined according to combinati... | 10/17/1989 |
| 4869186 | Needle thread tension control system with differential clamping A needle thread tension control system includes a pair of thread clamping members and a driving mechanism for driving the thread clamping members in timed relation with the rotating speed of a arm shaft. A controlling mechanism controls the driving mechan... | 09/26/1989 |
| 4867083 | Modular sewing machine arranged to control auxiliary devices A sewing machine comprises a bed 3 on which a work-supporting table 3a is defined and from which a post 4 carrying a cantilevered support arm 5 provided with a needle-holding head 6 at its free end, rises up. An upper shaft 9 performing a rotating motion ... | 09/19/1989 |
| 4825785 | Latch tacker An apparatus for stitching material in a sewing machine having a throat plate having a stitch tongue, a stitch forming instrumentality for forming an overedge stitch having a needle, an upper looper, and a lower looper. The apparatus has first plates for ... | 05/02/1989 |
