Abstract: A device for finishing woven denim textiles is described which, proceeding from unfinished goods, is supposed to be brought to predetermined reference values for finished width, skew and woof thread density. The device is supposed to be designed for continuous operation for regulating all three reference values. According to the invention, a stretching device, such as a rack or a loop dryer, and a shrinkage system for continuous throughput of the woven denim textile, are arranged one after the other. Directly behind the stretching device, particularly, at the same time, behind the shrinkage system, a single measuring device, preferably as an optical detector having a digital camera, is provided. The measuring device is designed, at the same time, for detecting the actual values of finished width, skew and woof thread density, and is supposed to be connected, in control circuits, with devices for achieving the reference values.

Abstract: A system for controlling the width and stitch density of a moving fabric web compacted by a fabric compaction system. The width control subsystem comprises a first camera which captures an image of a moving fabric web, and a first controller, wherein the first controller receives the captured image, calculates the width of the fabric web, and compares the calculated width to a first width set point. The stitch count control subsystem comprises a second camera that captures an image of a moving fabric web, and a second controller, wherein the second controller receives the captured image, calculates the stitch count of the fabric web, and compares the calculated stitch count to a first stitch count set point.

Abstract: A right rail and a left rail are constituted of an entrance rail portion, an exit rail portion, and a rail connecting portion. The respective portions of the rails are moved in a film-width direction via a rail attachment and a positioning section. The positioning section is constituted of a lead screw rod and a positioning motor. The respective positioning motors are controlled by a controller. Upon inputting an entrance width and an exit width through a data input section, the controller moves positions of the respective rail attachments and performs orientation so as to decline an orientation axis.

Abstract: The invention concerns an improved method of heating or tempering foils and an associated device including an arrangement for measuring the temperature, based on the following features: a separate arrangement is provided for heating the foil edges; the foil edge heating arrangement comprises an infrared radiator device (21) and a hot air heating device (29); and the infrared radiator device (21) and the hot air heating device (29) can be controlled or set at different heating output values.

Abstract: A spreader for spreading a fabric having upper and lower sides, transversely spaced edges and longitudinally extending reenforcing cords spaced laterally across said fabric between said edges preparatory to treating the fabric in a calender, as the fabric moves in a given path to the calender. The spreader includes a mandrel having an outer generally cylindrical surface concentric with a rotational axis. The cylindrical surface has a helical groove having convolutions with a pitch generally equal to a desired cord distribution laterally of the fabric. The mandrel is rotatably mounted to a support structure such that the mandrel is positioned transverse to the fabric with the cylindrical surface of the mandrel aligned with the fabric path to be generally tangential to a side of the fabric as the fabric moves in the given path. A first motor positioned on the support structure rotates the mandrel about the axis at a given rotational speed.

Abstract: A spreader for spreading a fabric having upper and lower sides, transversely spaced edges and longitudinally extending reenforcing cords spaced laterally across said fabric between said edges preparatory to treating the fabric in a calender, as the fabric moves in a given path to the calender. The spreader includes a mandrel having an outer generally cylindrical surface concentric with a rotational axis. The cylindrical surface has a helical groove having convolutions with a pitch generally equal to a desired cord distribution laterally of the fabric. The mandrel is rotatably mounted to a support structure such that the mandrel is positioned transverse to the fabric with the cylindrical surface of the mandrel aligned with the fabric path to be generally tangential to a side of the fabric as the fabric moves in the given path. A first motor positioned on the support structure rotates the mandrel about the axis at a given rotational speed.

Abstract: A fabric width control system for a fabric compactor for compacting a moving fabric web. The system includes a vision assembly for measuring the width of the moving fabric web downstream of the fabric compactor. A mechanical spreader is located upstream of the fabric compactor for adjusting the width of the web in response to a control signal from an open loop controller. The controller is connected to the vision assembly and the mechanical spreader for controlling the position of the mechanical spreader in response to a change in the width of the moving fabric web from a pre-set value. In the preferred embodiment, a cloth stabilizer is located downstream of the fabric compactor for maintaining the moving fabric web at a pre-determined position with respect to the vision assembly, thereby further increasing the accuracy of the system.

Abstract: A improved upper level de-twisting mechanism is provided to facilitate the handling of rope form fabric as it is drawn from a bulk container, typically in wet condition, and conveyed to a processing operation, such as spreading. The mechanism includes a rigid support positioned under a lifting roller and mounting a poteye through which the fabric is drawn. Three or more grooved guide rollers engage the lower flange of the poteye, supporting it for rotation about its axis. A reversible drive motor is mounted along side the poteye and drive belts are trained about the drive motor output and the grooved external contours of the poteye for controllably rotating the poteye.

Abstract: A device to correct the longitudinal torsion in a tubular fabric includes a plurality of conveyor belts placed on two opposite sides of a balloon shaped by air pressure in a vertical segment of a fabric tube, each one composed of several rotatable rules which press the balloon up with its movement to pull it in the direction of a plurality of squeezer rubber cylinders which are in a transversal sliding direction in friction contact with the fabric to eliminate the longitudinal torsion from it.

Abstract: Tenter for an endless fabric, especially for use by heat treatment as a part process in connection with manufacturing of fabric for a paper machine comprising several carriages (1) for guiding the rims of the fabric material by means of a carrier (2) for each carriage (1) which is connected with a drive chain. Each carriage (1) comprises at least one spring (4) arranged between the carrier (2) and an abutment in the carriage (1) such that the velocity of each carriage (1) substantially corresponds with the speed of the fabric rim. It also includes a mechanism for registering and monitoring the tension force in the material based on which the velocity of the drive chain and the carrier (2) is adjusted to maintain a desired velocity for the fabric through the heat treatment zone.

Abstract: A device for continuously imparting a predetermined twist to an elongated tubular shaped flaccid work piece composed of first and second sets of arcuate shaped spaced apart ribs delimiting a space having a funnel shaped portion, a moving device affixed to the first and second set capable of moving the first and second set of ribs in misalignment with one another, and a device for supplying gas under pressure to the space delimited by the first and second sets of ribs.

Abstract: A tentering system having a pair of spaced tenter rails defining a first end, a second end and a tentering path, and moveable material securement members carried by the tenter rails is disclosed. The tentering system may include first material guides at the first end of the tenter rails and second material guides at the second end of the tenter rails, and at least one drive motor for alternately and selectively driving the securement members in the first and second directions. In addition or in the alternative, a pair of direct drive motors is provided at the first end of the tenter rails, each of the direct drive motors including a clutch moveable between a drive position and a neutral position, and clutch actuating means to selectively and positively move the clutch from the neutral position to the drive position. In addition or in the alternative, first and second pairs of direct drive motors are provided at the first and second ends of the tenter rails, respectively.

Abstract: Lengthwise stretching machines for thermoplastic synthetic films are equipped with mechanical or opto-electrical devices for detecting a tearing of the film or an accumulation of film on the stretching rollers and for stopping the machine when tearing or accumulation occurs, to protect the stretching rollers. Unallowable loads and possible damage to the roller bearings are avoided by mounting the bearing housings (1, 2) of each roller (3, 4, 5) of a lower roller (7) in the machine frame for cooperation with a force generating device (8) which presses the respective bearing housing (1, 2) toward oppositely located rollers (9, 10, 11) of an upper roller group (12) to an extent permitted by stops (14, 15) rigidly arranged on the machine frame (13). The rollers (3, 4, 5) of the lower group received in the bearing housing (1, 2) can overcome the pressing force of the device (8) to slide in a yielding direction away from the upper rollers, when a roller accumulates film thereon.

Abstract: A dyeing machine is provided along the drive withdrawn from a storage zone for the web with a monitor of the continuous displacement of the web and, therebelow, a mechanism for applying traction controlled by the web-advance monitor. The tractive mechanism can be a ring normally traversed without contact by web and rotated about a diametral axis to apply traction or a pincer which is clamped on the web and then raised to apply traction.

Abstract: The invention relates to the wet processing in particular of knitted tubular material in the broad tubular state which in a first processing section is led through a fluid bath then inflated to form a balloon section and afterwards led in the broad tubular state through the gap between a pair of squeezer rollers. Within the fluid bath the incoming material in hank form is subjected to twist sensing and if any twist is detected the incoming tubular material is rotated in the region before the first processing section to undo the twist. The completely and stably relaxed and untwisted tubular material leaves this first processing section in a stable broad tubular state and can then be passed in an optimum manner through the succeeding principal processing sections.

Abstract: The invention relates to a method and to apparatus for stretching tubular material by blowing in compressed air, in which the delivery speed and/or the removal speed of the tubular material are regulated. In this way, a very uniform stretching of the tubular material is achieved without impairing the surface.

Abstract: The invention relates to apparatus for inflating a continuously moving length of tubular material, in which the nozzle tube is rotatable and an arrangement is provided which locks the nozzle tube in an angular position in which the nozzle is in contact with the length of material during the discharge of gas from the nozzle. Such apparatus is distinguished during the greater part of the production time by a considerable reduction in the friction between the length of material and the nozzle tube.

Abstract: Apparatus and method for removing real or false twist from a moving fabric in rope form. Freely rotatable, diagonally opposite elements are located on opposite sides of an fabric path of travel. Each element has a helically wound fabric contact member therearound with the helix direction of the diagonally opposite elements being the same. Fabric passing between the elements and engaging the contact members of the elements imparts rotation to the elements while the contact members impart rotation to the fabric for twist removal. A twist direction detector is located downstream of the elements to detect any remaining twist in the fabric, and a twist measurement sensor is located downstream of the twist detector to determine the amount of any remaining twist.

Abstract: The disclosure relates to the finish processing of tubular knitted fabric in the manner to effect accurate, uniform alignment of the sewn seam at the edge extremity of the fabric tube, as it is being finished and gathered in flat form. Stripe-matched tubular knitted fabric has been slit longitudinally, adjusted to convert stripes from spiral to circular form, and resewn along its entire length. An equipment and method is provided for finish processing of such fabric, wherein a novel arrangement is provided for rotationally manipulating a laterally distended fabric to maintain accurate, uniform edge alignment of the sewn seam.

Abstract: A tensioning machine for use in the heat treatment of textile fabric for controlling the widthwise dimension of the fabric comprises a pair of continuously movable tenter chains for moving the fabric along a path and supported by guides which are coupled to one or more rotatable spindles operable to adjust the guides transversely of such path. One end of each spindle is both rotatable and axially movable and cooperates with a force sensitive device that is operable in response to an alteration in the force applied thereon to generate a signal. Each spindle is coupled to a rotary drive, the operation of which is controlled by the signal generated by the associated force sensitive device.

Abstract: Differentially stretched plastic with a dyed border along one side suitable for shaded interlayers of laminated windshields moves in an arcuate path away from a frustoconical roll of a continuously operating differential web stretcher toward an intermittently operated web cutting machine, which tends to veer the web transversely every time it starts to pull a length of web into the cutting machine. The present invention realigns the arcuately shaped web between cutting operations when necessary to compensate for lateral veering of the arcuate plastic web from the arcuate path it takes so as to cause the web to enter the web cutting machine at a proper angle and orientation for cutting.

Abstract: The disclosure relates to the finish processing of stripe-matched tubular knitted fabric in the manner to effect accurate, uniform alignment of the sewn seam at the edge extremity of the fabric tube, as it is being finished and gathered in flat form. Stripe-matched tubular knitted fabric has been slit longitudinally, adjusted to convert stripes from spiral to circular form, and resewn its entire length. An equipment and method is provided for finish processing of such fabric, wherein a novel arrangement is provided for rotationally manipulating a laterally distended fabric to maintain accurate, uniform edge alignment of the sewn seam.

Abstract: A tenter frame drive is illustrated wherein auxiliary power operated means are provided to drive the sprockets at the entrance end of the chain runs, opposite the main drive at the exit end. The auxiliary drives remove the slack in the chains which normally occurs at the exit end opposite the point of driving engagement of the sprockets in such a fashion as to avoid chattering of the chain and tenter clips while providing for a division of the forces so as to some extent reduce the maximum tension in the chain, and at the same time insure sufficient tension for proper gripping of the web at the entrance end of the tenter.

Abstract: The disclosure relates to techniques for high efficiency drying of wet-processed tubular knitted fabric. The wet tubular fabric is initially spread to flat form and then guided in a controlled manner over a so-called Mach nozzle, at which high velocity gaseous medium, usually steam, at speeds approaching the speed of sound and above, is discharged directly through the fabric, which is maintained in tension as it passes over the nozzle outlet. The thus treated tubular knitted fabric, now with a greatly reduced liquid content, is then immediately directed over a second spreader device, which distends the fabric widthwise to a predetermined, uniform width, to restore the fabric width lost during wet processing and during the relatively high tension nozzle treating operation. In this damp, geometrically stabilized condition, the fabric may be directed immediately into an otherwise conventional tensionless dryer for tubular knitted fabric, where the necessary final drying operations are completed.

Abstract: A control system is provided for maintaining a constant predetermined transverse width in a continuous elastic or extensible web while the web is traveling longitudinally and while simultaneously transversely aligning the longitudinally moving web in register with a transversely extending work station which transversely extends across the web path at a preset location. The invention further provides contoured electrifier apparatus which is adapted for use in the polishing of three dimensional deep pile surface contoured fabrics and the like. In addition, the invention provides ways of adapting the control system for use with a plurality of transversely extending processing units, each one of which can have transversely varying process conditions such as required in a contour shearing device or contoured electrifier.

Abstract: At least one nozzle is provided for supplying a stream of air to tubular knitted textile material. A retaining device, including at least one guide roller, is provided for retaining an air bubble formed in the textile material by the air supplied thereto. Means for controlling the air supply comprises a probing device for measuring said air bubble which is separate from and is located ahead of said retaining device, and includes a feeler element in contact with the side of the air bubble which is remote from said nozzle.

Abstract: Control of skew, bow and yield in circularly knit pile fabric is accomplished by providing the fabric tube as knit and before longitudinal slitting with identification mark means so aligned with respect to selected longitudinally spaced courses that after the fabric tube has been slit and spread out flat for tentering, skew, bow and yield can be readily controlled in response to detecting means for viewing the identification mark means.

Abstract: The disclosure is directed to an improved stop mechanism for controlling edge drives of fabric spreaders, in the processing of tubular knitted fabrics. A combination spreader and propeller mechanism, consisting of a frame and fabric engaging belts, is received internally of a section of tubular knitted fabric, in order to distend the fabric laterally during or prior to certain processing operations. The fabric engaging belts are driven by means of edge drive rolls, which externally engage the fabric at its opposite edges and drive the belts through the intervening fabric layer. Occasionally, the fabric may jam on the spreader frame such that, with continued fabric movement, the spreader frame tends to become dislodged from the edge drive rolls. Various photoelectric and mechanical arrangements have been proposed for stopping the equipment at such times, in order to prevent damage to the spreader frame and/or other parts of the equipment.

Abstract: An apparatus for expanding a laminating interlayer is disclosed. The apparatus includes structure for feeding a heated web of laminating interlayer material to a conical member. A stretching of the web occurs between the feeding structure and the conical member. The web is cooled on the conical member. The apparatus also includes structure which maximizes the yield from the web being stretched.