Patents Assigned to Elitex
-
Patent number: 5167134Abstract: A mechanical take down device in a circular, particularly double cylinder knitting machine. The device includes two circular parts, one being full and solid and fitting into the other part, while the fabric passes between them. One of the parts has a screw-threaded surface and the neighboring surface of the other part is circular in shape and its slant equals that of the screw-threaded surface. One of the parts does not rotate, while the other rotates and is coupled with the needle cylinder.Type: GrantFiled: August 5, 1991Date of Patent: December 1, 1992Assignee: Elitex LiberecInventors: Milan Fucik, Miroslav Chromy, Jiri Pohorilsky
-
Patent number: 5152039Abstract: A device for aligning wefts of textile belts comprises four arched cylinders which are positioned so that they define a regular or irregular quadrilateral. The orientations of the axes and angular positions of the cylinders are adjustable. In other words, the cylinders are tiltably and rotatably mounted. The cylinder positions are adjusted so as to ensure that the textile belt to be aligned is able to contact only that part of the circumferential surface of the cylinders which has a predominantly widening effect on the textile belt. The mechanism of orienting the four arched cylinders includes two servomotors for driving gears and transmission chains in a manner which is effective for selectively tilting and/or rotating the cylinders so as to correct textile belts having arch-like and/or skewed wefts.Type: GrantFiled: September 7, 1990Date of Patent: October 6, 1992Assignee: Elitex LiberecInventor: Josef Spurny
-
Patent number: 5060699Abstract: A device for automatically removing a mispicked weft on a weaving machine. A hook fixed to a rotary shaft is rotated to raise the weft off the woven fabric and between two rotatable discs. A holding nozzle supported on the hook blows air against the hook to hold the lifted web in the hook. The rotatable discs include a relatively stationary and relatively axially moveable disc. After the hook draws the web between them, the discs are moved together and when they rotate they pull on the weft. A servomotor controls the hook moving shaft.Type: GrantFiled: June 25, 1990Date of Patent: October 29, 1991Assignee: Elitex LiberecInventor: Petr Velechovsky
-
Patent number: 5035369Abstract: A system for winding filamentary material around a cone. The system includes: a drive ring for rotating the cone and a lateral ring for supporting the cone. The lateral ring is rotatable with respect to the drive ring. The angular velocity of the cone is controlled by controlling the rotation of the lateral ring responsive to the tension of the filimentary material and/or responsive to the diameter of the cone.Type: GrantFiled: May 24, 1989Date of Patent: July 30, 1991Assignee: Elitex koncern textilniho strojirenstviInventors: Jaroslav Beran, Milos Pavlu, Vladimir Prasil, Zdenek Holy, Frantisek Pesek, Zdenek Vitamvas, Josef Vitak
-
Patent number: 5024068Abstract: A needle picker releasing device in a circular knitting machine for the production of hosiery goods performs releasing of pickers from a non-operative into an operative position by kinematic action of an electromagnet moving a blocking device. The electromagnet may be operated by a microswitch contacting a cam. The blocking device may be a double armed lever arranged between the electromagnet and the picker, one arm of the lever being engagable with the picker so as to block the motion of the picker and another arm of the lever being engageable by the electromagnet, movement of the other arm being obtained in one direction by the electromagnetic when energized and in another direction by spring means.Type: GrantFiled: October 5, 1988Date of Patent: June 18, 1991Assignee: Elitex Koncern TextilnInventors: Borivoj Fucik, Milan Petranek, Frantisek Smital
-
Patent number: 5022440Abstract: A device for removing an inserted-and-beat-up weft on weaving machines employs a rotary stripping brush with agitation hairs and also tangentially-oriented feed jets situated on an exterior periphery of the brush.Type: GrantFiled: August 31, 1989Date of Patent: June 11, 1991Assignee: Elitex Koncern Textilniho StrojirenstviInventor: Petr Velechovsky
-
Patent number: 4989402Abstract: The invention relates to textile machine control. The run of spinning units is controlled by two busses, a two-way bus, and a reserve one-way bus, the latter being activated, as a rule, by a central electronic system, and possibly, though less often, by the operator. A suitable arrangement of the circuits on the criterion of whether they belong to the two-way bus or to the one-way one, facilitates troubleshooting and permits shorter repair time on vast systems comprising a plurality of work stations of the textile machine.The invention can be used on various types of spinning machines where a predetermined length of wound yarn is required.Type: GrantFiled: October 5, 1988Date of Patent: February 5, 1991Assignee: Elitex koncern texilniho strojirenstviInventors: Jiri Sloupensky, Pavel Seidl, Lubomir Fait, Miroslav Boucek
-
Patent number: 4989645Abstract: A device for removing an incorrectly inserted weft on a jet loom includes nozzles, a scissor locking device, and a suction device operated in response to signals from sensors sensing the position of the weft. The incorrectly inserted weft picking length is removed in the shape of an evolving loop in the direction towards the shed end side by a pull exerted on the whole subsequent picking length of the weft.Type: GrantFiled: December 2, 1988Date of Patent: February 5, 1991Assignee: Elitex koncern textilniho strojirenstviInventor: Petr Velechovsky
-
Patent number: 4969550Abstract: A device for supplying textile tubes to the supply cells of a horizontal, trough supply tank situated over the winding units of a textile machine, especially, an open-end spinning machine. The device is mounted on a movable, endless traction carriage and includes front carriers having a backwardly oriented suspension section for temporary support of the front edges of the textile tubes, and rear pushing-type carriers equipped with double-arm, tilting holders with lower ends bent for carrying the rear edges of the textile tubes. A respective sloping control segment is situated over each supply cell for controlling a roller of the double-arm, tilting holder so as to either grip the textile tube between the front and rear carriers or release the rear carrier from the tube which enables insertion of the tube into the supply cell.Type: GrantFiled: September 13, 1989Date of Patent: November 13, 1990Assignee: Elitex LiberecInventors: Ales Manek, Zbynek Venci
-
Patent number: 4967575Abstract: A thread cutting and holding device in double-cylinder circular knitting machine has a movable cutting plate, stationary cutting blade and pressing finger. Stationary and movable plates are arranged between the cutting plate and the pressing finger. Both movable plates are controlled by one lever. The stationary holding plate is arranged between the movable plates and is provided at its operative end with a V-shaped cutout, in which the threads are collected and held be the movable holding plate. The movable holding plate is for this reason provided with a side cutout with transverse holding edge.Type: GrantFiled: October 5, 1988Date of Patent: November 6, 1990Assignee: Elitex koncern textilniho strojirenstviInventors: Borivoj Fucik, Pavel Zahradka
-
Patent number: 4927029Abstract: A device for checking cylindrical bodies, especially the tubes of open-end spinning machines transported along a feed path from a tube container to the distribution mechanism of the tubes on the machine, for example, by means of a chain conveyor with feed blades and with a cyclical intermittent motion. The above includes an auxiliary container for discarded tubes situated over the tube container near the feed path of the feed blades and oriented with its inlet aperture towards the feed path. The arrangement includes a centering device mounted transversely with respect to the feed path of the tubes at the location where the blades of the chain conveyor are cyclically stopped. The centering device is disposed along the axis of the tube which is transported to it. The centering device is provided with a drive for imparting rotary motion to the centered tube.Type: GrantFiled: August 30, 1988Date of Patent: May 22, 1990Assignee: Elitex koncern textilniho strojirenstviInventor: Jiri Thrlik
-
Patent number: 4925000Abstract: An object, such as a bobbin, is gripped at a location other than its center of gravity and lifted so as to rotate by gravity to a desired orientation. A carriage moves the bobbin toward a conveyor path and tilts the conveyor path into position to receive the bobbin. The bobbin is positioned on the conveyor path in the desired orientation while the conveyor path is in the receiving position.Type: GrantFiled: June 30, 1989Date of Patent: May 15, 1990Assignee: Elitex, Koncern textilniho strojirenstviInventors: Zdenka Pacakova, Pavel Brokl, Josef Kulhavy
-
Patent number: 4887440Abstract: A thread cutting device in a circular knitting machine for the production of hosiery goods. The device is arranged on the dial and it consists of a circular cutting saw and a stationary cutting blade cooperating with it. Above the circular cutting saw there is arranged a shaped element so that on a part of the arc in front of the stationary cutting blade with respect to the rotary direction of the circular knitting machine it covers its teeth. Above said part of the arc of the shaped element in the path of the threads drawn by the needles there is arranged a projection for the purpose of lengthening the thread ends between the needle and the circular cutting saw.Type: GrantFiled: September 28, 1988Date of Patent: December 19, 1989Assignee: ELITEX koncern textilniho strojirenstviInventor: Jan Jelinek
-
Patent number: 4866926Abstract: Fibre loosening device for a spinning unit of a spinning machine. The invention relates to a fibre loosening device for a spinning unit of a spinning machine. Before entering the fibre separating area, the sliver is longitudinally separated into fibre sections fed to a separating region, i.e., to helix-like arranged functional lines on the fibre separating roller, such feeding being non-simultaneous but sequential. The division into the fibre sections is initially carried out by means of protrusions defining grooves therebetween on a condenser, the axial distance between these grooves not being an integer multiple of the helix lead width of the functional lines on the fiber separating roller. The arrangement provides for reducing periodical irregularities of the fibres for the subsequent spinning process.Type: GrantFiled: June 15, 1988Date of Patent: September 19, 1989Assignee: ElitexInventors: Vaclav Safar, Petr Ursiny
-
Patent number: 4793160Abstract: Device for controlling the thread guides in a circular knitting machine, particularly for manufacturing hosiery and similar goods. The machine has a grooved needle cylinder, the grooves containing needles and needle jacks. The machine also has a control drum which controls the needle jacks by selectively tipping them by control elements mounted upon the cylindrical surface of a control drum. The thread guides of the knitting machine are controlled by programming elements mounted on an outer end surface of the control drum, the thread guides being selectively driven by programming elements mounted upon the outer end surface of the control drum.Type: GrantFiled: September 7, 1982Date of Patent: December 27, 1988Assignee: ELITEX koncern textilniho strojirenstviInventors: Pavel Uhlir, Jaroslav Maxa
-
Patent number: 4787423Abstract: The present invention relates to a method of and apparatus for inserting weft yarn in jet looms, in which the weft yarn is inserted by the action of an inserting fluid jet and entraining fluid jets. The weft yarn is projected by the inserting fluid jet into the carrying jet field made up of at least two opposite systems of entraining fluid jets disposed close to and in front of the reed of the loom; the weft yarn is discontinually supported inside the carrying jet field, and the carrying jet field is simultaneously stabilized by withdrawing a part of the fluid from the boundary layer of the jet field.Type: GrantFiled: July 7, 1986Date of Patent: November 29, 1988Assignee: ELITEX Koncern Textilniho StrojirenstviInventors: Miroslav Hrus, Ladislav Sevcik
-
Patent number: 4781332Abstract: Method of and apparatus for winding conical or tapered bobbins with the use of a rotating transfer element rolling under the surface of the bobbin on a rotating support element which compensate for the differences in the winding and supply speeds of the thread. The part of the thread leading from the distributor of the thread to the supply point of the thread onto the bobbin is lead onto the surface of a rotating transfer element which is in engagement with the surface of the winding on the bobbin and is angularly positioned on the support element in accordance with the direction of said part of the thread.Type: GrantFiled: December 19, 1985Date of Patent: November 1, 1988Assignee: Elitex, Koncern Textilniho StrojirenstviInventors: Petr Jirasco, Zdenek Koloc, Vaclay Moc, Miroslav Vaclavik
-
Patent number: 4753274Abstract: Method of and apparatus for weft thread insertion in a jet loom. Fluid weft thread insertion medium under pressure is fed to the weft thread along the axis of a spiral weft thread reserve, said axis coinciding with the weft thread insertion channel of the loom. The weft thread reserve is constantly rotated at a fixed speed with respect to the main shaft of the loom. The weft thread is discharged from the weft thread reserve in the form of a rotating balloon of an up twister, the weft thread being discharge through a tube disposed along the said axis which loosely confines the weft thread traveling from the apex of the balloon toward the shed of the loom. A nozzle for discharging fluid weft thread inserting medium is disposed within the balloon close to but spaced from the apex end thereof so as to discharge said fluid into the inner end of the weft thread guide where it impinges upon the rotating weft thread in loose spiral formation traveling through said guiding tube.Type: GrantFiled: August 23, 1985Date of Patent: June 28, 1988Assignee: Elitex Koncern textilniho strojirenstviInventor: Vladimir Svaty
-
Patent number: 4710646Abstract: The invention relates to a thread movement sensor comprising an arm with at least one thread guide. The invention solves the problem of sensitivity of the sensor to the vibrations of the machine by making a part of the arm an element of a magnetic circuit of coil, the latter being connected to the control circuit of a knitting machine.Type: GrantFiled: April 3, 1986Date of Patent: December 1, 1987Assignee: Elitex koncern textilniho strojirenstviInventors: Otakar Curda, Jaroslav Maxa, Pavel Uhlir
-
Patent number: 4674696Abstract: The present invention relates to a grooved rotary yarn distributor for winding bobbins of cylindrical shape, the distributor having a reversible, crossing helical groove and a variable radius of the groove bottom. The distributor is intended for winding of cylindrical bobbins with a constant crossing angle of the wound yarn, the bobbin being employed in textile machines.Type: GrantFiled: March 17, 1986Date of Patent: June 23, 1987Assignee: Elitex koncern textilniho strojirenstviInventors: Jilji Halelka, Petr Jirasko, Zdenek Koloc, Miroslav Vaclavik