Abstract: A seating unit having a movable seat is disclosed. The seat is movable between a closed position, in which the seating surface of the seat is generally horizontally disposed, and an open position in which the seating surface is generally vertically disposed and forwardly facing, the lower surface of the movable seat confronts the front wall of the seating unit, and the front edge portion of the seat is adjacent the underlying surface. Mechanisms suitable for effecting such movement are also disclosed.

Abstract: The present invention provides an apparatus and method for perforating and creasing a paperboard sheet utilizing a rotary die process. The method and apparatus employ a die rule that comprises a base adapted to be attached to a die roll of a rotary die machine, a plurality of tooth elements, and open spaces between at least some of the plurality of tooth elements. Each of the plurality of tooth elements comprises a body portion that is fixed to and extends radially outwardly from the die roll and a laterally-tapered tooth portion. Each open space is defined by lateral portions of adjacent teeth element body portions and by the base outer edge. The body portion preferably extends radially outwardly from the base so that substantially all of the tooth portion penetrates the outer surface of the paperboard, and the base outer edge extends outwardly so that it engages and creases the inner surface of the paperboard.

Abstract: An apparatus and related method for forming a double hem in a textile web includes a first scroll which folds the margin inwardly and then outwardly positioning the margin between the first hem and the web. The apparatus relaxes the first hem and a second scroll and a guide wire cooperate to form a second hem which is in alignment with the first hem.

Abstract: A display device which is capable of producing a plurality of different views of an image simultaneously is provided. The display includes an array of semiconductor devices with an electro-optical material disposed over the array of semiconductor devices. The semiconductor devices include electrodes which are selectively activated to form refraction gratings in the electro-optical material. Each of the semiconductor devices also includes a processor layer which can determine a refraction grating which is necessary for generating a predetermined number of discrete images which are visible from a predetermined number of different vantage points or viewer positions. Since a different image is provided to each eye, the viewer is provided with a perception of depth such that a three-dimensional image is provided. In addition, since different images or at least different image perspectives are provided to different points, horizontal and/or vertical parallax of the display is attained.

Abstract: An apparatus for stuffer box crimping synthetic filament yarns is disclosed, which includes an air nozzle for pulling in and advancing multi-filament yarns at a high speed, and a downstream stuffer box in which the gaseous transport fluid is separated and the yarn is compressed to a compact yarn plug. To increase the production speed and production reliability, the speed at which the yarn is advanced through the air nozzle, and the yarn tension which is produced by the air nozzle is increased. This occurs in accordance with the invention in that the duct for the common advance of the yarn and the transport fluid is configured such that the flow duct narrows in the shape of a nozzle in a first segment down to a restriction at which the outflowing transport fluid reaches the speed of sound, and the duct then widens in a second segment at a small angle of opening.

Abstract: A method and apparatus for controlling the traversing frequency during the winding of a cross-wound package. In so doing, a signal is detected which is generated by the motion of the yarn while being wound onto a yarn package. Thereafter, the signal is analyzed by frequency, and/or amplitude, or other characteristics. Finally, the traversing frequency of the yarn takeup system is adjusted or varied as a function of the analysis result. In the preferred embodiment, the signal is proportional to a development of airborne sound or a development of solid-borne sound, each of which is generated in response to the motion of the advancing yarn on the package being formed. The method of the present invention allows disturbances in the winding operation to be avoided, such as the formation of so-called ribbons and similar phenomena.

Abstract: A durable cylinder assembly for a circular knitting machine is described. The cylinder assembly includes a cylinder body having an outer cylindrical face and an upper face including a plurality of spaced-apart substantially radial channels. A shaped circumferential indentation circumscribes an upper end of the outer cylindrical face, and a hardened circular band is matingly engaged with the indentation to define a durable bearing surface for reciprocating elements the knitting machine, e.g. the sinkers and/or needles. The hardened band is preferably formed of heat treated metal and has a discontinuous circumference defined by a single cut, which is preferably single or double biased. The indentation provided in the cylinder body is desirably in the form a right angle, and the band preferably has a rectangular cross-sectional configuration so as to mate securely with the indentation.

Abstract: A cam mechanism and method in a circular knitting machine having at least two types of knitting needles each having a master butt and at least two selector butts and including a stitch cam for engaging the master butts and retracting the needles from the knitting and tucking positions to the stitch-forming level, and knitting, tucking and welt-guarding cams movable between extended operative positions and retracted inoperative positions, and a selection device for individually selecting and moving the knitting, tucking and welt-guarding cams between the operative and inoperative positions.

Abstract: A tissue web (W), which has improved formation and improved tensile properties but no appreciable deterioration of retention and layer purity, if applicable, in comparison with tissue webs produced in conventional twin wire tissue formers, may be formed in a roll type twin wire former by draining 90-99%, preferably 98-99%, of all drainable water from the slurry while on the forming roll (1), preferably a suction forming roll, the remaining 1-10%, preferably 1-2%, of the drainable water being sufficient to have a substantial amount of the papermaking fibers free in the slurry during an initial phase of a subsequent step, and, downstream of said forming roll (1), draining said remaining 1-10%, preferably 1-2%, from the slurry while vibrating the slurry sufficiently to create a micro-turbulence causing a small scale agitation of the fibers to prevent them from forming any appreciable fibrous web (W) on the two forming fabrics (3; 4) until the water remaining in the slurry is insufficient for allowing the fibers

Abstract: A first and second indexing gauge for use in positioning air blowing units relative to the needles of a circular sliver knitting machine. An air blowing unit is attached to the machine so as to be both vertically and rotationally adjusted relative to the knitting cylinder. Once the machine has been initially calibrated, the first and second indexing gauges can be used to quickly and easily reposition the air blowing units relative to the needles so as to allow the machine to knit a different fabric and/or pattern with minimal down time and wasted raw materials.

Abstract: A heater (1) for an advancing thermoplastic yarn which is guided along a heated surface over ring segments (2). The flow of heat to the yarn is adjustable by changing the geometric parameters of the heat transfer.

Abstract: In a quality monitoring method it is proposed that in continuous operation a test signal be generated, digitized, logarithmized, followed by the calculation of a frequency distribution of the test signal amplitude. The frequency distribution can then be integrated in individual areas, the result for each area forming a feature of the test signal. The features of a test signal are combined into vectors, which can be used for a better evaluation of the quality of the production plant.

Abstract: A sealing and severing apparatus is disclosed for sealing plastic bags formed in succession from stock plastic film material and then severing the sealed bags from one another. The bags are filled with a foamable composition while they are being formed so that when the formed and filled bags are placed in a container, the foamable composition fills the bag with foam to thereby produce a customized foam cushion for any objects in the container.

Abstract: A method of servicing the individual winding stations of a multi-station winding machine, and wherein a plurality of identically equipped service carts is provided in a parking track, and such that upon receiving a call signal, each service cart may be moved from the parking track and along a service track and to the winding station which issued the call. The cart is then adapted to service the winding station, such as by doffing full yarn packages. The cart then may be moved to a transfer position where the full packages are received from the service cart for packing, or transport to a further processing machine.

Abstract: An insulator element (10), especially destined for noise insulation in vehicles, comprises an adhesive layer which is covered by a removable protective element (12). To facilitate removal of the protective element by peeling, the outer contour of the protective element (12) projects beyond the outer contour (11) of the insulator element (10). In forming a peeling tongue (13), first a protective element layer is removed from an adhesive layer of the starting material and swung into an upright position or bent back. During the subsequent cutting or punching process to produce the insulator element (10), the area of the protective element layer which was folded back is affected in part only, thus providing the peeling tongue (13). Thereafter the hinged peeling tongue (13) is bent so as to project beyond the outer contour (11) of the insulator element (10) thus offering a big enough gripping area to peel off the protective element (12).

Abstract: A dispensing apparatus for serially dispensing plastic bags from a wound roll of continuous flexible plastic bags joined along perforated severance lines. A box like container is provided which is adapted to receive the wound roll of plastic bags. The container has a bottom panel, a top panel, a rear panel, a front panel, and a pair of opposed side panels. The front panel defines a guide slot for guiding the plastic bags from the wound roll along a predetermined path and further defining a threading slide for threading the plastic bags from the wound roll into the guide slot. A separation tongue is located on the front panel for separating the plastic bags from the wound roll as the plastic bags engage the separation tongue along a predetermined path of travel.

Abstract: A proximity switch for determining the approach of a metal object includes an oscillating circuit which has a coil and a capacitor, and which produces a high-frequency field at the poles of the coil. A sensing resistor is connected to the oscillating circuit and serves to determine and evaluate the damping of the oscillating circuit by the object. Also, the sensing resistor is controlled as a function of the current measured in the sensing resistor such that the total resistance of the evaluation circuit remains constant. The voltage drop across the sensing resistor is measured and the measured voltage drop may be used to signal the approach of the metal object.