Abstract: An apparatus for controlling twist in a tubular knitted fabric being withdrawn from a circular knitting machine includes an annular twist control member rotatably mounted to the circular knitting machine for disposition within the tube of the fabric. The twist control member is independently rotatable from the other rotational aspects of the circular knitting machine and frictionally imparts counter rotation to the fabric to prevent twist. Optionally, various rotations of the twist control member may be achieved to reduce or impart twist as desired.
Abstract: An apparatus for treating traveling textile material in a pressurized fluid includes a housing divided into a plurality of expansion chambers and a centrally located treatment chamber through which the material is caused to travel and in which pressurized treatment fluid is applied to the material, the pressurized treatment fluid expanding progressively outwardly through the expansion chambers by way of the material passageways. The material passageways are formed with their smallest dimension at least eight times smaller than the smallest dimension of the expansion chambers to achieve the necessary pressure drop without sealing.
Abstract: A marking yarn for selective use in formation of a textile fabric, such as a tubular pantyhose blank, comprises an elongate strand-like yarn base formed of a water-soluble material and at least partially coated with a material which is detectible by an ultraviolet sensor. When the marking yarn is included in the textile fabric, e.g., by knitting one or more courses of the marking yarn in plated relation with the body yarn of the hosiery blank, the yarn effectively designates a predetermined location in the fabric of the hosiery blank which can be subsequently detected by an ultraviolet sensor in the sewing of the hosiery blank into a pantyhose garment. In subsequent wet processing of the garment, e.g., dyeing, the marking yarn dissolves, thereby removing it from the fabric and liberating the coating material.
May 16, 1994
Date of Patent:
November 12, 1996
U.S. Textile Corporation
Hans L. Lengers, Gerhard Storandt, James McCormick, William M. Secrest, Michael D. Horney
Abstract: A patient transport and care apparatus includes a skeletal frame structure having a superstructure defining a patient support area which is configured to fit over a conventional patient support platform. One end of the skeletal frame structure is open so that the device may be rolled into and out of surrounding relation with the patient support structure. The device also includes a patient lifting system, a weighing system and an electrical distribution system. Various patient care accessories, equipment and medication may be carried conveniently on the apparatus.
Abstract: A device for an open-end spinning machine is disclosed having a drive and a bearing for a shaft-less spinning rotor that forms the rotor of an axial field motor. The device has a stator with a hollow, cylindrical core, a multiphase winding, and a combined magnetic/gas bearing. The bearing has gas outlet bores in an axial, plane-parallel bearing face providing for gas distribution symmetrically about the axis, and there are holding and centering magnets centered in the bearing face. The housings of the stator and the bearing are combined into a one-piece stator housing in which are formed the device for cooling, the gas distribution device, holders for spring and clamping elements of the stator housing suspension, and a support for a sensor plate. The housing also integrates a yoke plate of the bearing and connections for supply lines. A gas chamber therein is closed off on the open side by a gas bearing cover.
Abstract: An improved rotary seal assembly for kiln drums and the like utilizes a series of overlapping metal leaves mounted to a hood surrounding the drum and a wear ring resiliently supported to surround the drum at an annular spacing from its outer surface. Wear liners on the metal leaves are resiliently held by the leaves in surface contact with the outer surface of the wear ring to maintain a seal therebetween. Respective annular plates project radially outwardly from the drum and inwardly from the wear ring into overlapping abutment to seal the annular space between the wear ring and the drum.
Abstract: A reinforced boring rod assembly and a method for producing the same includes a boring rod including an arrangement for mounting a rod end thereto, a rod end for mounting to the boring rod, a generally annular collar telescopically mounted around the boring rod adjacent the mounting arrangement with the collar including a plurality of crimps formed circumferentially thereabout and extending into the rod a sufficient distance to initiate gripping action on the rod end. Stainless steel welds cover the crimps as well as the junctions of the rod end and the collar, as well as the collar and the boring rod. A method for constructing the same is also disclosed.
Abstract: An electromechanical positioning device to be used for positioning, for example, a probe-tip (12) in a scanning tunneling microscope, an electron emitter in a field electron gun, a mirror in an interferometer etc. comprises a low-mass support (10) as a moving drive means. The support, which is mounted to be frictionally movable in an electromechanical movement activating means, can be moved comparatively fast owing to its low mass and very precisely because its response to the movement force is controlled by sawtooth control pulses, preferably via a piezo-mechanical structure.
Abstract: A textile winding machine having a plurality of work stations each of which has a number of pneumatically actuable operating components. The operating components are connected to separate compressed air lines each having at least two compressed air supply locations each associated with a respective pressure controller. The compressed air lines are dividable in turn into machine segments operating at different pressure levels by means of selectively actuable valve elements disposed in the compressed air line between the pressure controllers.
Abstract: Material and fabrication costs associated with disposable surgical gowns and like medical garments are significantly reduced by utilizing a circularly-knitted tubular fabric cuff formed predominantly of a single-ply knitted construction with a small annular turned welt presenting a finished outer cuff edge. The circularly-knitted fabric of each cuff comprises a main body having plural body yarns and an elastic yarn formed in needle loops in circumferential courses and axial wales, the turned welt of each cuff comprising a welt beginning course connected to a welt ending course with a plurality of intervening courses therebetween. Preferably, each cuff's main body has an annular region adjacent the welt having courses of alternating needle loops and yarn floats and courses entirely of successive needle loops and an adjacent annular region having courses of alternating needle loops and tuck stitches and courses entirely of successive needle loops.
August 3, 1993
Date of Patent:
October 8, 1996
Johnson & Johnson Medical, Inc.
Francisco G. Lopez, Roscoe M. Farrell, Melvin Euliss
Abstract: An adjustable clamping frame used in a vacuum forming machine comprising two longitudinal frame members disposed in spaced parallel relation to one another and two transverse frame members disposed in spaced parallel relation to one another. The two longitudinal frame members are perpendicular to the two transverse frame members. The longitudinal frame members have elongated slots for receiving the opposite ends of the two transverse frame members. The elongated slots permit selective sliding movement of the transverse frame members within the longitudinal frame members for varying the spacing between the transverse frame members in order to accommodate varying sizes of plastic sheets to be molded. The elongated slots also permit removal of each transverse frame member by rotation of each transverse frame member out of the elongated slots of the longitudinal frame members.
Abstract: A self-cleaning filter apparatus for use in removing particulate matter from a transport fluid, such as air, which includes a housing having a pair of spaced pulleys over which an endless filter belt is positioned to present two generally straight filter reaches and two generally curved filter reaches. The endless filter belt includes a permeable substrate formed as an endless belt and a plurality of pleats of filter media extending outwardly from the surface of the substrate so that the transport fluid can pass inwardly therethrough an deposit the particulate material on the exterior surface of the pleats. A suction nozzle is positioned adjacent the outer surface of the endless filter at one of the curved reaches thereof for removing particulate matter deposited on the pleats as they pass along such curved reach.
Abstract: A warp-knitted shoe liner fabric of a three-bar construction having a three-dimensional compressible character in the fabric's thickness dimension with a pattern of elongated coursewise underlaps at the fabric's technical back which, in use, is to be oriented to face inwardly of the interior foot-receiving area of the shoe. The fabric is preferably finished with dye bath-carrying anti-microbial/anti-fungal and wicking enhancement agents, and also has silicone and acrylic polymers applied to resist fraying and abrasion and improve the fabric softness.
Abstract: A velvet fabric is produced by warp knitting on a three-bar warp knitting machine by knitting ground yarns on the machine's middle bar to provide structural and dimensional integrity to the fabric and pile yarns on the machine's top bar in extended underlaps which are shearable, nappable, brushable, or otherwise raisable to produce an upstanding raised pile. In order to resist any tendency of the pile yarn to be pulled from the fabric, the present invention contemplates that the pile yarns should be microdenier multifilament synthetic yarns while the ground yarns should also be multifilament synthetic yarns of a relatively low denier per filament not exceeding approximately 1.5 denier per filament and of a total collective denier approaching but not exceeding that of the pile yarns, preferably in excess of about 75 percent of the total denier of the pile yarns.
June 2, 1995
Date of Patent:
September 24, 1996
Guilford Mills, Inc.
David T. Richards, Phillip D. McCartney, Billy J. Casper
Abstract: An apparatus for prepositioning a yarn end on a spinning cop for subsequent unwinding in a bobbin winding machine accomplishes improved functional capabilities by providing a positionally changeable yarn guiding device as well as a yarn retaining device. A part of the yarn guiding device which comes into contact with the yarn can be moved from an active position below the upper edge of the cop into an inactive position above the cop nose. The yarn retaining device has an opening for yarn entry. By way of a control device, the yarn guiding device is controlled to take up the inactive position following the placement of nose windings about the cop nose, and a device for inserting the remaining yarn end portion into the tubular interior of the cop is then activated and the yarn retaining device is taken out of contact with the upper edge of the cop. Preferably, the yarn inserting device comprises a tubular arbor which can be positioned centrally above the cop to function as a yarn end blower nozzle.
Abstract: A single strap-support neck harness for suspending a scanner or other electronic device from a user's neck includes a housing for receiving a scanner to be suspended, a rigid brace arrangement, and an elongated flaccid neck strap. The rigid brace arrangement comprises two rigid V-shaped angular support members, with each support member attaching to opposite sides of the housing and having converging portions projecting upwardly from the housing. Ends of the strap attach to the separate ends of the projecting converging portions of the support members and, when worn about the neck, the strap suspends the brace arrangement and housing oriented with one end of the housing engaging the user's torso to extend the scanner to face the user at an upward incline from the user's torso for easy viewability of the scanner.
Abstract: Multiple saw blades in a gang rip saw apparatus and like multi-blade cutting apparatus may be selectively adjusted to differing spacings from one another by mounting a threaded sleeve on the rotary arbor of the apparatus and mounting a plurality of electric drive motors on the sleeve with the rotor of each drive motor threadedly engaged with the sleeve and the stator held fixed against rotation relative to the sleeve by longitudinal guide rods, which carry electrical supply wiring to the stators from a slip ring assembly. Each saw blade is affixed annularly to a respective one of the stators. Individual energization of each stator causes the respective rotor to drive the motor/blade assembly along the sleeve to a desired position relative to the other saw blade/motor assemblies. With the saw blade/motor assemblies selectively positioned at desired relative spacings, the arbor is driven to rotate the saw blade/drive motor assemblies integrally with the arbor for "gang" cutting operation in conventional manner.
Abstract: A shaftless spinning rotor for an open-end spinning machine advantageously protects the rotational bearing components in a combined magnetic-gas bearing management by utilizing a concentric magnet arrangement for the generation of a magnetic field for guiding the rotor relative to the stator, wherein a first dynamically balanced magnet unit projects from one of two opposed bearing faces on the rotor and the stator and a corresponding dynamically balanced magnet unit is recessed in the opposite bearing surface, the magnet units being dimensioned to produce an axial as well as a radial air gap therebetween. Air nozzles for producing the gas bearing open into the recessed area. The air gap in the area of the central axis can be embodied to be wider than the air gap between the opposed bearing faces.