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6082279 |
Sewing machine with mechanism for retracting feed dog away from upper surface of needle plate
An electrically controlled sewing machine includes a needle bar, a needle plate, a feed dog, a feed dog vertical drive mechanism, a feed dog front/rear drive mechanism, an embroidery drive...
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5664510 |
Blindstitch machine
A blindstitch machine provided with a mechanism for feeding an end of the fabric to a position where a needle of the machine main body passes thereby to form the seam from the start end of the...
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5564356 |
Selvedging system
A piece of textile goods is selvedged along an edge extending between ends of the piece by gripping a strip of the piece offset from the edge and displacing it parallel to the edge at a constant...
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5544599 |
Program controlled quilter and panel cutter system with automatic shrinkage compensation
A quilting machine includes a multiple needle quilter with a panel cutter located in-line therewith and downstream thereof and having an accumulator therebetween. A programmable controller operates...
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5526761 |
Method and apparatus for closing mattresses
A method for forming a partial mattress sack which prevents radial bunching includes feeding first and second panels having different edge lengths at different rates through a sewing machine to...
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5313901 |
Feed device for sewing machine
A feed device for a sewing machine incorporates an upper feed dog above a throat plate and a lower feed dog below the throat plate and conveys material fabrics to a needle drop point by way of...
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5309854 |
High lift sewing machine
The invention comprises improvements to sewing machines for increasing the throat clearance of the machine. The improvements relate to 1) modifications to mechanical components of the machine to...
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5307749 |
Process for determining the coordinate values for sewing patterns
A process for determining coordinate values of touchdown sites of a needle for forming sewing patterns with an electronically controlled sewing machine, which is equipped with a feed dog performing...
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5189969 |
Device for processing sheet material with colored pattern
A processing device for processing a sheet material with a pattern of the present invention is such as a sewing machine with pattern matching operation. The processing device has a detecting unit...
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5174229 |
Loading device for a sewing machine
A device for loading a garment for a sewing machine having a first device for moving the garment toward the sewing machine, a second device downstream of the first moving device for moving the...
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5161476 |
Pattern matching system
A sewing machine has a pattern matching system for matching patterns on two fabric pieces to be sewn to each other, based on detected hues of the patterns. Any mismatch between the patterns is...
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5107780 |
Pattern match sewing machine
A device for sewing together two fabric parts includes two pattern sensors and correcting means for determining and correcting misalignment of patterns on the fabric parts. Also, an additional...
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5103751 |
Differential feeding apparatus for a sewing machine
A feeding apparatus includes a spindle and a shaft disposed in a base of a sewing machine. A lever is fixed on the shaft and can be caused to swing by the spindle. Two followers are engaged on the...
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5103749 |
Process and sewing machine for sewing together layers of fabric according to a pattern
Patterns of two fabric layers are each recognized by a camera and the fabric layers are aligned to make these patterns agree in the transverse and longitudinal directions. According to the...
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5101748 |
Feed dog drive for sewing machines
A feed dog drive having an adjustable feed direction for a sewing machine having, a needle plate, a presser foot, and a feed dog element. The drive has a device for carrying out a feeding and...
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5097777 |
Method and apparatus for preloading material to be sewn into a sewing machine and for compensating for uneven lengths of such materials
An improved method and apparatus is provided for use in a sewing machine. The improvements include preloading two pieces of material which are to be sewn together. The preloading is accomplished by...
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5001998 |
Pattern matching sewing machine
A pattern matching sewing machine comprises a sewing means for sewing two superposed sheets of cloth having substantially identical patterns thereon, a feeding means for feeding the two cloth...
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4987843 |
Upper feed adjusting mechanism for seing machine
An upper feed mechanism of a sewing machine, in which a horizontal motion mechanism for moving the upper feed dog back and forth is provided with a double lever mechanism composed of a single arm...
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4982677 |
Pattern-matching sheet-joining machine
A pattern-matching joining machine for joining two sheets (e.g., sewing two cloths) having the same patterns with the patterns matching. The pattern-sensing photo-sensor generates intensity data...
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4958580 |
Sewing machine lateral feed apparatus
A sewing machine including a laterally extending shaft with a cam contactor thereon being rocked by an eccentric cam assembly secured at a hook drive shaft provides an end face cam at its end such...
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4917031 |
Cloth-pattern sensing device for a sewing machine
A device for performing an initial setting of a photosensor of a sewing machine including a light-emitting element and a light-receiving element. The device adjusts the strength of light emitted by...
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4901660 |
Pattern-matching sewing machine
A pattern-matching sewing machine having a feed-correcting means for accurately adjusting feed amount using a correction factor with three values which are set according to various sewing...
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4901659 |
Pattern-matching sewing machine
A pattern-matching sewing machine for sewing two sheets, (e.g. two cloths) having the same patterns with their patterns matching. The sewing machine has a plurality of mismatch calculation modes....
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4867087 |
Sewing machine for performing pattern-match sewing
A sewing machine for sewing two overlapped cloth pieces including sensor means for detecting the intensity of light transmitted through each respective cloth piece, intensity curve generating means...
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4823715 |
Feed control apparatus for a sewing machine
In order to correct the asynchronous state of a feed pulse motor of a sewing machine used to reciprocate a feed for feeding a fabric to a sewing needle, a feed control apparatus is provided which...
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4777896 |
Sewing machine for performing pattern-correct sewing
Before sewing, a cloth pattern sensing means generates waveform signal corresponding to the overall width of two overlapping patterns corresponding to each other in two cloth pieces. The position...
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4766828 |
Pattern sensor for sewing machine feed adusting system
A pattern sensor installed in a sewing machine for sensing patterns on two opposing sheets of cloth so that the patterns on the separate cloths are correctly aligned while sewing. The sensor is...
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4674426 |
Feed mechanism for sewing machine
A lifting rocker which is pivotally supported by a link is engaged with an eccentric ring which is fixed to a main shaft of a sewing machine. By the rotation of the eccentric ring, the lifting...
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4665847 |
Automatic sewing machine
There is provided an automatic sewing machine which comprises, a main shaft, a bed, a needle bar having a needle secured to the lower end thereof, a thread straining control device, an operation...
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4658741 |
Method and apparatus for determining the amount of advance of a plurality of material plies
Method and apparatus for determining and regulating the amount of advance of a plurality of workpiece plies at a sewing machine which is affected by scanning the individual plies while recording...
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4633796 |
Sewing machine material feeder
A feed device on a sewing machine having a feeder which is firmly connected with a horizontal shaft which is displaceably mounted in a feed rocker mounted fixed in a housing, and having a drive for...
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4616583 |
Thread tightening control apparatus of automatic sewing machine
A thread tightening control apparatus according to the present invention is capable of tightening upper and under threads accurately and in good order, irrespective of fabric thickness, by the...
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4612867 |
Method and apparatus for the pattern-correct sewing together of cloth parts
A method and apparatus for the pattern-correct sewing together of two pieces of cloth having the same pattern by a sewing machine with one cloth feed mechanism arranged over and one arranged under...
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4594957 |
Sewing machine belt feed with variable pitch drive pulley
A work advancing mechanism for a sewing machine which includes a driven circulatory belt for positively advancing the work beneath the presser foot of the machine. The belt is entrained about and...
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4577573 |
Precision-stitch sewing machine
The invention is concerned with the technical field of machines for attaching knit or woven fabric hems to generally knit wearing apparel, and in particular, relates to a machine designed to...
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4567838 |
Apparatus and process for dropping feed dog and lifting presser foot simultaneously
The lifting device (19) of the presser foot (21) of a sewing machine is operable through the use of an operating axle (18) and a toggle lever (20). The operating axle (18) is connected to a slide...
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4548144 |
Sewing machine with cam type stitch pattern control
A sewing machine is equipped with an automatic control assembly for the needle bight and/or the feed dog. The control assembly comprises a control cam block having a plurality of juxtaposed cam...
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4541354 |
Feed reference point balancing device of sewing machine
In a fabric feeding mechanism of a sewing machine there are provided a pair of elastic members each connected between two pivot axes at both ends of each of a pair of link elements. The elastic...
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4539925 |
Bi-directional feed dog mechanism for sewing machine
An adaptor for sewing machines permits a fabric to be fed past the stitch forming area in a choice of two perpendicular directions. The adaptor includes feed dog means and a support plate for said...
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4466368 |
Lock stitching sewing machine with a thread tightening device
A thread tightening device for a sewing machine of the type having a main shaft, a vertically reciprocable needle bar with a needle carrying an upper thread, a loop taker and a drive shaft for...
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4368683 |
Sewing machine with feed dog dropping system
A sewing machine with a feed dog vertically displaceable between an upper operative position and a lower inoperative position has a control element connected with a control shaft of a control motor...
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4343249 |
Stitch-length correcting sewing machine and stitch-length measuring presser foot assembly used therein
A stitch-length correcting sewing machine and a stitch-length measuring presser foot assembly used therein are disclosed. The sewing machine and presser foot assembly enables stitches of a...
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4286532 |
Sewing machine with a device for directly driving the feeding shaft
The invention relates to a sewing machine and more particularly relates to a device for directly driving the fabric feeding shaft of the sewing machine independently of the upper main shaft and the...
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4285294 |
Upper layer feed mechanism in a sewing machine
An upper layer feed mechanism in a sewing machine is disclosed herein. The upper layer feed mechanism comprises a first interlocking arm secured at one end to a horizontal feed shaft, an upper...
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4270472 |
Indication arrangement for use in a sewing machine
A zigzag sewing machine of a sewing pattern selectable type is disclosed having a cloth advancing mechanism for advancing a cloth at a predetermined pitch after every one stitch and a pitch control...
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4196682 |
Feed adjusting device for sewing machines
A sewing machine provided with a set of pattern generating cams is also provided with a user-operated multi-setting pattern selector dial. When the selector dial is turned to a particular setting,...
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4193365 |
Toggle controlled servo system
Digital control signals can be accepted and translated directly into low inertia, high torque intermittent rotary motion by this fast time response apparatus which comprises a low mass, rotatably...
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4188893 |
Device of detecting cloth feeding amount in sewing machines
In preparing for the sewing of fancy or complicated stitch patterns, on a sewing machine provided with a feed dog able to feed sewn material both forwards and backwards and also provided with a...
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4167912 |
Sewing machine stitch length override and feed balance for digital feed actuators
A sewing machine is disclosed wherein positioning of the work feeding regulator is controlled by a digital actuator responsive to digital signals applied thereto. The positioning of the work...
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4159004 |
Work feeding mechanism for sewing machines
A sewing machine work feeding mechanism of the drop feed variety having a feed dog adjustably supported at one end of an elongated feed bar. The pivot end of the feed bar is supported between a...
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