Abstract: A roll for an agricultural baler includes an interior tube and an exterior tube surrounding and connected to the interior tube. The exterior tube has an exterior surface and a plurality of loops extending from the exterior surface of the exterior tube.

Abstract: Reduction of time and labor required for manually disentangling the bundle of cloths to some extent beforehand. A cloths separating device for disentangling a bundle of cloths consisting of a plurality of cloths tangled with one another includes: a cloths pick-up mechanism which holds a part of cloths on a cloths transport conveyor and picks the part of cloths, in a hanging state, obliquely upward; a pair of upper and lower compression conveyors, whose entrance is located so as to face a middle part of the cloths picked up in a hanging state, the clearance between the compression conveyors becoming narrower from the entrance toward an exit; and a cloths push-in mechanism which pushes the middle part of the cloths into the entrance of the compression conveyors.

Abstract: An apparatus for processing a fabric has a drum with an elliptically-shaped cross-section having a pair of narrow sides and a pair of broad sides. Each of the narrow sides have an impact edge. Each of the pair of broad sides has a sliding surface. The drum has a differential helical expander formed on an outer surface thereof. A bearing and drive shaft set are affixed to the drum so as to impact rotational motion to the drum.

Abstract: An apparatus for treatment of fabric, and including a fabric supply for supplying a length of dry fabric. A plurality of rolls having fabric-altering surface elements thereon is positioned in an upstream-to-downstream flow path for receiving the length of fabric across the surface elements thereof from an upstream fabric supply assembly to a downstream fabric take-up assembly. At least some of the plurality of rolls have drive means for positively rotating the rolls. The take-up assembly pulls the length of dry fabric off of the fabric supply assembly and through the flow path against the surface elements of the plurality of rolls in only a single pass and onto the take-up assembly.

Abstract: A stretcher roller for spreading out moving flexible strip material such as for example plastics film, paper or textiles, has a cylindrical outer surface of elastomeric material, with inclined incisions which are separated from one another by webs. The transition from the surface into an incision which makes an included angle of less than 90.degree. is of rounded or chamfered form. In this way a sharp-edged transition from the surface into the incision in question is avoided. Such sharp edges can damage the strip material if it enters the incision, which is particularly likely at the ends of the roller. The rounded transition avoids this damage.

Abstract: A relatively inexpensive web widening apparatus which is suitable for the manufacture of a widened web having a large width and a lightweight web while maintaining a high widening ratio and the uniformity of the web and can be operated with ease at a high efficiency comprises a widening tool in contact with the web, having first and second groups of widening plates arranged in a width direction of the web to face each other, at least one pair of cross guiders which can nip both side end portions of the web, and guide means for moving the widening plates of the first and second groups in such a manner that the interval between the widening plates expands gradually as they rotate and then narrows gradually.

Abstract: A spreader for spreading a fabric having upper and lower sides, transversely spaced edges and longitudinally extending tire reenforcing cords spaced laterally across the fabric between the edges preparatory to rubberizing the fabric in a calender, where the fabric moves in a given path to the calender, the spreader comprising a cantilever mounted mandrel having an outer generally cylindrical surface concentric with a rotational axis, with the cylindrical surface having a helical groove having convolutions with a pitch equal to a desired cord distribution laterally of the fabric; a mandrel support structure adjacent one edge of the fabric and having means for rotatably mounting the mandrel in a position transverse of the fabric with the cylindrical surface 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 on the support structure for rotating the mandrel about the axis at a given rotational speed; a second motor for moving the s

Abstract: A web spreading apparatus for transversely spreading a web, such as a split web formed of a longitudinally uniaxially stretched film, includes a spreading means arranged in a travelling path of the web for transversely spreading the web. The spreading means comprises a curved rod-like member and projections arranged generally circumferentially about an axis of the curved rod-like member. The curved rod-like member is arranged so that the concave side is directed forward and the convex side is directed rearward, in the web travelling direction, and the projections are rotatable about the axis of the curved rod-like member at a speed higher than the travelling speed of the web. In one aspect, the curved rod-like member comprises a curved shaft and an outer tube arranged about the curved shaft and rotatable relative to the curved shaft, the projections being formed between the grooves cut on the outer tube. In another aspect, the projections are formed of a spring arranged about the curved rod-like member.

Abstract: An expander roller for running webs of paper, textile material or the like has a straight metallic or plastic core and an outer layer consisting of two helically convoluted strips of rubber or other elastomeric material. The two convoluted webs are mirror images of each other with reference to a plane which extends between them and is normal to the axis of the core. The external surface of the outer layer is profiled in that it is provided with grooves cut into or otherwise formed in the strips and forming helices as a result of convolution of the respective strips onto the core. Each helical groove is adjacent a deformable lip which defines a portion of the external surface of the outer layer and can yield in response to engagement with a running web. The strips are permanently or detachably bonded to the peripheral surface of the core.

Abstract: A weaving machine including a device for stretching a fabric in the weaving machine includes a guide bar over which the fabric is bent to thereby bring a surface of the fabric into contact with the guide bar. An array of notches on each end of the guide bar is provided to exert an outward traction on the fabric edges to maintain the fabric in stretched condition. To enable a fabric whose width is narrower than a full weaving width to be located along the guide bar in a non-symmetrical manner while effecting a lateral traction force on the edges of the fabric; the guide bar is provided with at least one array of notches located at one end of the bar arranged so that each notch in the array is broken so as to extend circumferentially less than the full circumference of the guide bar, with the array including a plurality of notches longitudinally and circumferentially spaced along the guide bar.

Abstract: A process in which a stitchbonded fabric is stretched and then allowed to recover from the stretch decreases the stiffness of the fabric while greatly increasing its thickness and bulk.

Abstract: A combined fabric stretching and straightening apparatus is comprised of a pair of cylinders having helical configurations on their periphery the cylinders being mounted for rotation on a shaft adapted to be driven in a direction opposite the direction of feed of a fabric web. The cylinders may rotate relative to each other and the shaft or may be coupled to rotate with the shaft by clutches interposed between the cylinders and shaft. Sensors are optionally provided for energizing one or the other clutch so as to center the fabric as it is fed.

Abstract: There is disclosed a device for guiding and spreading out a moving material web, which includes a spreading station, a guide station and at least one edge-sensing system downstream from the guide station. The spreading station is arranged downstream from the guide station, so that very high web speeds can be realized because the web corrections are executed very gently and without whipping up the correcting pulses.

Abstract: An improved stretcher/expander roller is disclosed. The roller includes a rigid core which is rotatably mounted downstream from where a traveling web is slit. An elastomeric covering around the core has at least one pair of helical lands formed in it which each spiral outwardly away from the center of the roller. The lands are inclined outwardly away from the center of the roller and progressively increase in flexibility from the center to the ends of the roller. The roller imparts axial forces on the web strips to simultaneously separate the web strips from one another and cross-stretch each web strip. The lands are made progressively more flexible by either progressively increasing the depth of the helical grooves between the lands, by progressively decreasing the helix angle of the lands, or by progressively decreasing the angle subtended by each land and the axis of the roller, from the center to the ends of the roller.

Abstract: A moving web expanding and guiding apparatus comprises, in combination, an expander device having three screw rolls arranged side by side, and a guide device having a required number of centering rolls, wherein the intermediate screw roll is movable in a direction at right angles to the web surface and the centering rolls are tiltable in the direction which corrects the deviation of the web.The apparatus is provided with a screw roll emergency stop mechanism for quickly stopping the rotation of the screw rolls when the moving web excessively zigzag deviates, and a centering roll time delay stop mechanism for stopping the operation of a centering roll tilting mechanism when the centering rolls have returned to their neutral position.

Abstract: Apparatus for orienting a mailable film comprising means for pulling the film through at least one pair of multi-directional orientation rollers having helical grooves thereby imparting a random multi-directional orientation to the film.

Abstract: An elongated knit web is flattened and guided by an apparatus having a support frame which extends longitudinally in a plane and which has an upstream and a downstream end. A pivot supports this frame for pivoting about a pivot axis transverse to the plane at the upstream end. A pair of transversely extending and longitudinally spaced spreader rollers are provided on the frame adjacent the upstream end and each has a pair of screwthread formations of opposite hand, these spreader rollers being driven to spread out the web transversely. A pair of transversely extending and longitudinally spaced guide rollers are provided on the frame between the spreader rollers and the downstream end, these guide rollers being freely rotating and having surfaces which are made to adhere to the web to prevent its edges from curling up. A control system pivots the frame about its pivot axis to position the edges of the exiting web.

Abstract: A cylindrical guide for varying the width of a bundle of continuous filaments has a surface in contact with the bundle that has an array of nonparallel grooves. The grooves converge until a minimum distance is reached on the guide surface and from thereon diverge to a maximum distance. With this arrangement of grooves it is possible to control the width of the bundle of filaments in a widening or narrowing manner by simply rotating the cylindrical guide one direction or the other until the desired width is reached.

Abstract: Apparatus for opening a textile gathered in rope form includes a spreading device and a centering device, downstream of the spreading device, including two cylinders, maintained with their axes parallel but pivotable in a common plane parallel to the general, desired direction of advance of the textile, between two extreme positions inclined on opposite sides of the said direction. The pivoting of the cylinders is controlled through a sensor which senses a displacement of the textile from the desired direction and acts to return the textile to this direction. If the recall action of the cylinders in either extreme position is insufficient, a respective control device is activated which pivots a spreading cylinder of the spreading device out of its normal working position, in which it is parallel to the other spreading cylinder, into one of two extreme positions to exert a further recall action on the textile.

Abstract: At a fabric take-off apparatus the deflection rod arranged forwardly of the cloth take-off roll, is provided at both halves thereof with opposite pitch threaded grooves and, if desired, at the ends thereof with spreader-needle rolls. The fabric, directly after travelling on to the take-off roll, is stretched in its width. Upon departing from the take-off roll the fabric or cloth, at the region where it leaves the take-off roll and arrives at a deflection roll, therefore does not tend to become wider due to the appreciably lower tension of the cloth beam. In this way the formation of creases or folds in the fabric cloth is avoided, which otherwise could be permanently formed at the contact location or nip between the cloth take-off roll and the subsequently arranged deflection beam or roll.

Abstract: A system for opening fabrics in rope-form comprises a combination of a spreader device, and a centering device downstream of the spreader device a distance of 250 to 750 mm. The spreader device comprises two double spirally scored spreader rolls rotatably driven in the opposite direction to the fabric feed direction. The centering device comprises a pair of parallel centering rolls with means to vary their inclination to the direction of movement of the fabric, as needed.

Abstract: A device for sculpturing pile fabrics which have been treated by stiffening the fibers thereof in selected regions. The device includes means for advancing the fabric, a support and a blade which severs the stiffened fibers as they pass over the support but allows the unstiffened fibers to deflect away from the blade.

Abstract: Apparatus is disclosed for controlling the position of a moving web. The web passes between a driven roll and a pair of pressure applicators that are positioned on either side of center of the web path. Edge sensors are located adjacent the driven roll and are operatively connected with the pressure applicators. Once the web misalignment is sensed, the opposite pressure applicator is actuated to apply pressure against the web. The driven roll, preferably a scroll roll, then drives the web in the direction of the pressure applicator until the web returns to proper alignment and the pressure applicator is deactuated. The pressure applicator is preferably a device that is brought into contact with the web and applies frictional forces thereon to cause movement of the web along the roll, while avoiding any substantial frictional forces axially with respect to the normal web path. Structure is also disclosed to uncurl rolled selvages of a moving web.

Abstract: A spreader roller for textiles which is fabricated by positioning a smooth cylindrical supporting member coaxially within a corrugated tube having inner and outer helical ridges, the outer ridges on one longitudinal half of the tube being of opposite hand to the outer ridges on the other half of the tube. The corrugated tube is fastened to the supporting member along the inner helical ridges, preferably by plug welding at spaced points along the inner ridges.

Abstract: A continuous padding type dyeing machine particularly suitable for handling elastic fabrics, the machine including a padding bath with at least a pair of main and auxiliary padding rollers and a dryer having a pair of spaced endless conveyors means provided on opposite sides of a path of travel of the fabrics for transferring them through the dryer without causing excessive tensioning thereto. The endless conveyors are movable in and along a number of adjustable guide members and provided with a number of pin members for holding longitudinal side edge portions of the fabrics. A pair of detectors are provided at a lower end of a vertical section of the path of travel of the fabric through the dryer in association with opposite longitudinal side edges of the fabric for adapting the guide members to the particular width of the fabric under treatment.

Abstract: Motorized expander comprising on a single driven shaft at least two cylinders rigid with the shaft at its ends, a central cylinder idly mounted between the cylinders and separated from them by free spaces, and at least one clutch member for transmitting rotary motion to the central cylinder situated in one of the free spaces. The central cylinder is provided on its surface with a pair of opposite handed spirals, and each of the two cylinders comprises a spiral opposite handed to that of the adjacent spiral of the central cylinder. The spirals are arranged together to define a stretching device for one or more fabrics of normal width when the central cylinder rotates rigidly with the shaft, or a stretching device for a fabric of double or multiple width when the central cylinder is provided with motion relative to the shaft.