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Class 139/370.2 - Stationary supply; e.g., shuttleless type


Subclass of Class 139 - Textiles: weaving
Definition: Stopping wherein the weft thread is drawn from a thread
No. of patents: 130
Last issue date: 11/27/2007


1        
NumberTitleIssue Date
7299827Loom restarting method
A loom restarting method restarts a loom stopped due to a loom stopping cause without entailing a “wavy set mark”. When a loom is stopped due to a loom stopping cause entailing faulty picking, the loom restarting method provides a loom stopping command, withhold...
11/27/2007
7195039Jet weaving machine
A jet weaving machine is proposed in which a weft thread (S) can be inserted by means of a fluid from a weft insertion side (2) to a receiving side (3), including a weaving sley (9), along which a weft insertion path (4) extends, which de...
03/27/2007
7124783High speed yarn transfer system incorporating reversing linkage and electro-optical synchronization
A rapier for a rapier loom comprises:—a low mass self-tightening rotary clamp with its axis of rotation aligned to the direction of maximum acceleration;—a collapsing pivot linkage that converts the force used to close the self-tightening clamp into the force us...
10/24/2006
7066213Catching and holding apparatus for the catching-side weft thread end in a weaving machine
A catching and holding apparatus for catching-side weft thread ends in a weaving machine comprises a main nozzle and a catching passage for holding and stretching a weft thread end and a carrier on which the main nozzle and the catching passage are arranged. Further...
06/27/2006
6948532Method and apparatus for the weft insertion in a jet weaving machine
A method for the weft insertion in a jet weaving machine is proposed, in which in each work cycle a weft thread (S1) of predeterminable length which is to be inserted is drawn off from a winding drum (3) of a thread supply apparatus (2), the wef...
09/27/2005
6834683Method and apparatus for monitoring a leading end of a weft thread in a stretching channel in an air jet loom
The leading end of a weft thread exiting from a weft insertion channel in an air jet weaving loom is monitored by a weft stop motion positioned in a weft stretching channel directly downstream, as viewed in the weft motion direction, of an exit of the weft insertion...
12/28/2004
6708731Method for monitoring weft yarn run/stop conditions
A method of monitoring the weft yarn run/stop conditions during each insertion cycle in a shuttle-less weaving machine like a rapier or projectile weaving machine by means of an electronic weft yarn feeler generating run output signals representing said weft yarn ru...
03/23/2004
6532996Method and apparatus for driving a loom
A method of driving a loom is characterized by driving devices of a loom according to instructions for works and stopping a drive actuator on the basis of stop position information. The stop information used to stop the drive actuator is set relative to t...
03/18/2003
6470713Method and apparatus for monitoring run/stop conditions of a yarn
A method and apparatus for monitoring run/stop conditions of a yarn, particularly in a knitting or warping machine utilizing a yarn feeler. The yarn feeler includes an electronic, yarn actuated transducer operating with variable gain amplification of run ...
10/29/2002
6286562Electro-magnetic lamina type weft brake
A weft brake for weaving looms, comprising a rigid, fixed and flat plate made of non-magnetic material and a flexible lamina made of magnetic material, between which a weft thread slides; the flexible lamina is actuated magnetically against the rigid and ...
09/11/2001
6244305Reflected light type weft monitoring device
A device for monitoring a thread, for example the weft thread in a loom of the type in which the weft is driven through the shed of the loom with the aid of a jet, such as a gas jet, for example an air jet, and which has a reed with a longitudinal channel...
06/12/2001
6209588Weaving machine with pneumatic weft insertion and catch selvedge forming device
A weaving machine with pneumatic weft insertion is provided which includes a fixed reed filler at an output end of a reed when it is in a weft insertion position. A catch salvage forming device is disposed at an output end of the fixed reed filler when th...
04/03/2001
6206051Non reed interfering suction weft removal
A weft yarn end removing mechanism is incorporated into a shuttleless loom that holds leading end part of a picked weft yarn under tension by a weft yarn tightening device and beats up the weft yarn into the cloth fell of a fabric on the shuttleless loom ...
03/27/2001
6170536Method and apparatus for optically monitoring filing yarns
Method and apparatus for optically monitoring filling yarns inserted into a guide duct (10). Substantially collimated light rays are generated and directed transversely to the guide duct (10) onto photo-detectors (23), with the detection of interruption o...
01/09/2001
6148872Method and apparatus for determining the starting time of the weft insertion following a speed change of the main drive of a jet loom
The starting time of a weft thread insertion in a jet loom is automatically adapted to a change in the speed of the main loom drive shaft, in order to assure that the leading end of the weft thread always arrives at the same time at a weft stop motion dev...
11/21/2000
6112776Weft monitoring insertion system for a plurality of different weft threads
The weaving machine with a weft monitoring insertion system (1) for a large number of different weft threads (11, 11', 11") comprises a weft insertion member (6, 60), thread brakes (3), a weft thread selector (4) for the serving of a thread (11, 11', 11")...
09/05/2000
6082413Weft stretching and detecting apparatus for a jet weaving loom
A weft stretching and detecting device for a pneumatic weaving loom has a housing or mounting (6) with a weft guide channel section (8) in axial alignment with the weft insertion channel (2A) in the reed (2) of the loom and a weft stretching channel secti...
07/04/2000
6076563Weft stretching and detecting apparatus for a jet weaving loom
A weft stretching and detecting device has a first section (1A) for stretching a weft thread and a second section (1B) for monitoring the arrival of a leading weft end (11A) either through a weft guide path (4, 7, 7B) which is aligned with a weft insertio...
06/20/2000
6014991Method of monitoring the function of a stop motion arrangement in an air jet loom
In an air jet loom including a stop motion arrangement with first and second light beam sensor devices for detecting the presence of an inserted weft thread, the functionality of the sensor devices is continuously monitored. An inserted weft thread is exp...
01/18/2000
5940945Shed insertible sensor for dividing-shed formation on a sectional warping machine
On a sectional warping machine, the dividing-shed formation for introducing a dividing element is controlled in such a way that at least one yarn sensor (18, 18') is introduced transversely to the running direction of the shed warp (11, 12) into the opene...
08/24/1999
5735316Air weaving loom including a leading end weft stretcher and method for inserting a weft thread into a weft insertion channel of the loom
An air nozzle weaving loom is equipped on its weft exit sides (E2) with a cutter (11), a suction opening (8A), a first weft stop motion sensor (4), a weft stretcher (6), and a second weft stop motion sensor (7) arranged in that order in the weft insertion...
04/07/1998
5694979Method and apparatus for inspecting woven cloth using a plurality of photoelectric sensors
A woven cloth inspecting apparatus eliminates the influences of disturbances such as illuminating light and fly. At least two photoreceptor elements are arranged in the direction of the weft yarn of woven cloth. The photoreceptor elements detect different...
12/09/1997
5606998Weft detecting and stretching apparatus in a jet weaving loom
A weft guide channel (6) in a reed of an air jet loom can be lengthened or shortened by telescoping sections forming one or two channel extension members (10, 18) and/or by intermediate inserts (21, 22, 23) that also have a weft guide channel portion (21A...
03/04/1997
5479965Reed associated light sensitive apparatus for monitoring weft thread in a loom
An apparatus for the arrival monitoring of a weft in a jet loom with a reed pivotal between a first position and a second position. The reed has a longitudinal channel for the weft. An arm is mounted on the reed with the free end of the arm in the proximi...
01/02/1996
5477892Device for regulating feeler sensitivity in control of loom weft insertion
A device for continuously regulating the feeler sensitivity in the control of weft insertion in a loom. The device includes a selector having a memory into which the sensitivity value corresponding to the count of the weft passing through the eye of each ...
12/26/1995
5446951Device for measuring and controlling running distance of a yarn
A device for measuring running distance of a yarn, which detects an abnormality in yarn moving along a path of travel past a means for detecting the abnormality. The measuring device is capable of generating a stop signal in response to detecting the abno...
09/05/1995
5392819Planetary gear type selvage forming and cord catching device for loom
A selvage forming and cord catching device for use in a loom includes a base adapted to be secured to the loom and has two planetary gear systems mounted on it. Each of the planetary gear systems has two planetary gears orbiting about a central axis. A cy...
02/28/1995
5388618Weaving-machine control with display of the site and nature of thread breaks
A control system for adjusting and/or checking the operational parameters of a weaving machine includes a control unit with a monitor, the control unit including an image memory for storing images of the site and/or type of thread breaks. The images are d...
02/14/1995
5333651Pneumatic weft guide in an auxiliary reed
The binding of free weft thread ends at the exit of the weft thread insertion channel in an air weaving loom, into the fabric edge, is to be avoided. For this purpose it is necessary to straighten out the turbulent weft thread ends. The straightening is a...
08/02/1994
5332007Faulty weft control on air nozzle looms
The inclusion of faulty weft threads into a fabric being woven on an air nozzle loom is prevented with a minimal effort and expense for equipment and control components. For this purpose a sensor upstream of the weft thread insertion components provides t...
07/26/1994
5329961Reed with optical weft detector
A loom having an optical weft detector which includes a light emitter and a light detector for picking up light reflected by a weft thread in a guide duct formed by blades of the reed, is mounted on the side of the reed which faces away from the guide duc...
07/19/1994
5322090Method and apparatus for readying a defined weft thread reserve when there is a loom stoppage
Tearing of a weft thread between the main nozzle and the insert side of the selvage or insert end of the loom shed is to be avoided when the weft thread has not been properly woven into the fabric. The detection of a faulty weft thread stops the loom and ...
06/21/1994
5251674Weft feeler device of loom
This invention relates to a weft feeler device for detecting a success or a failure of weft insertion in case that two wefts are to be inserted per one picking, wherein a plurality of photo-electrical sensors and the discriminating circuits corresponding ...
10/12/1993
5205327Electrostatic weft detector
The weft break stop motion (1) detects without contact a potential displacement in the feeler (5a) effected by a weft thread moving past by means of a plate-like layered sensor element (2). With the feeler (5a) turned towards the weft thread insertion, th...
04/27/1993
5201346Thread feeding guide arrangement to a weft accumulator tube
Between the supply bobbin and a thread tensioner supplied therefrom, which comprises a thread guide (12) which can rotate around an axis of rotation (11), are disposed a fixed thread guiding component (3) and an optical sensor (20) for monitoring the weft...
04/13/1993
5136499Monitoring for distinguishing normal from abnormal deviations in a knitting machine
A method and an apparatus for monitoring a plurality of successive signals to detect a loss of the successive signals and to detect whether the signals are substantially alike and do not deviate from each other by more than a recognized, acceptable extent...
08/04/1992
5129430Weft removal device with measurement of broken yarn piece
A weft processing apparatus for a jet loom comprises a first weft length measuring device installed at the far or downstream side of the warp shed through which the weft is inserted for measuring the length of a broken weft yarn piece. A weft withdrawal d...
07/14/1992
5083584Weft yarn detector for a shuttleless weaving loom
In order to monitor the correct receiving of an inserted weft yarn by a gripper in a receiving unit of a shuttleless weaving loom a detector is provided which is stationary mounted on the receiving side in an interspace between said gripper and a slay bar...
01/28/1992
5067527Adjustment of weft yarn stretch in a shed of an air jet loom
A method for adjusting weft yarn stretching in an ordinary or traversing shed and for adjusting the air consumption of relay nozzles forming a travelling zone in the shed of an air jet loom having one or more yarn feed systems. The weft yarns are picked f...
11/26/1991
5063973Reed dent with optical weft detecting device
In a weft detecting device, optical fiber bundles, lenses, a light emitting module, a light receiving module, and an amplifier are integrated in a thin detecting sensor body having substantially the same shape of that of reed dent so that the device can b...
11/12/1991
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