摘要:
A fabric containing organic yarns and glass yarns so woven that the composite reinforcement is extensible, due to the inherent stretchability of the organic and due to the particular configuration in placement and orientation of the glass component, until the glass component is in line with the direction of tensile force, whereupon the glass yarns assume the load; the organic yarns having, in the meantime, become stretched to some point short of the elastic limit or to its ultimate elastic limit.
摘要:
A reinforced plastic bearing comprising a generally cylindrical structure of plastic reinforced with glass fiber, provided with a tubular layer of polytetrafluoroethylene fibers embedded and secured in the plastic. In the fabrication of this bearing, the polytetrafluoroethylene fibers are intertwined and formed into a cord having an irregular outer surface. The intertwining binds the fibers into position to inhibit relative motion thereof such that the cord is characterized by multiple length portions of the fibers in the outer cord surface, having opposite end portions anchored in position. This cord is formed into a woven fabric which becomes said tubular layer and which is impregnated with the aforesaid plastic in liquid form, the plastic flowing into the irregularities and interstices in the fabric and cord so as intimately to enrobe substantial portions of the cords and fibers, thereby securing them in position relative to each other. One surface of the fabric tubular layer has exposed the lubricous fibers which provide the bearing surface. Retention of the polytetrafluoroethylene fibers against delamination is, in one preferred method, maximized by use of a mandrel having a highly polished layer of polytetrafluoroethylene thereon. In removing the hardened bearing composite from the mandrel, the integrity of the plastic matrix which secures the polytetrafluoroethylene fibers in place is maintained.
摘要:
Fabrics in accordance with the invention are characterized by densely woven bodies of substantial thickness, in which individual warp yarns define angled paths traversing a principal portion of the wall thickness. The warp yarns and lateral fill yarns completely interlock the structure in non-laminar fashion. Seamless thick walled bodies having selectable shapes are woven by methods in which fill yarns are circumferentially fed under tension between spaced and independently controlled warp yarns that are directed radially into a central weaving region, with new warp yarn ends being selectively added. Frustums and other hollow bodies may be woven with progressively increasing diameter, with fill yarns circumferentially disposed about the central axis and warp yarns traversing paths within planes substantially parallel to the central axis, new warp yarn planes being added as the diameter of the body increases. Solid cylindrical shapes may employ a unitary structure defined by a plurality of substantially like segments of a cylinder, each segment having a number of warp planes extending radially and terminating at the outer surface of the cylinder, but having a different selected radial length, with the fill yarn being disposed in substantially concentric or spiral fashion within the cylinder.
摘要:
A fabric for reinforcing rubber or rubber-like belts, the fabric comprising weft cords interlaced with and extending transversely of warp cords to retain the latter in parallel relation, the warp cords being constituted of synthetic spun yarn having no greater than two single ends plied together. The foregoing abstract is neither intended to define the invention disclosed in the specification, nor is it intended to limit the scope of the invention in any way.
摘要:
A fabric for reinforcing pneumatic tires conventionally woven from metal warp cords composed of individual wires or filaments having a diameter greater than 0.003 inches, and weft cords composed of non-metallic material. A tabby, preferably composed of square woven textile cord fabric, is cemented along the leading and trailing edges of the wire cord fabric for maintaining the width of the wire cord fabric uniform throughout its length.
摘要:
A REINFORCED PLASTIC BEARING COMPRISING A GENERALLY CYLINDRICAL STRUCTURE OF PLASTIC REINFORCED WITH GLASS FIBER, PROVIDED WITH A TUBULAR LAYER OF POLYTETRAFLUOROETHYLENE FIBERS EMBEDDED AND SECURED IN THE PLASTIC. IN THE FABRICATION OF THIS BEARING, THE POLYTETRAFLUOROETHYLENE FIBERS ARE INTERWINED AND FORMED INTO A CORD HAVING AN IRREGULAR OUTER SURFACE. THE INTERWINING BINDS THE FIBERS INTO POSITION TO INHIBIT RELATIVE MOTION THEREOF SUCH THAT THE CORD IS CHARACTERIZED BY MULTIPLE LENGTH PORTIONS OF THE FIBERS IN THE OUTER CORD SURFACE, HAVING OPPOSITE END PORTIONS ANCHORED IN POSITION. THIS CORD IS FORMED INTO A WOVEN FABRIC WHICH BECOMES SAID TUBULAR LAYER AND WHICH IS IMPREGNATED WITH THE AFORESAID PLASTIC IN LIQUID FORM, THE PLASTIC FLOWING INTO THE IRREGULARITIES AND INTERSTICES IN THE FABRIC AND CORD SO AS INTIMATELY TO ENROBE SUBSTANTIAL PORTIONS OF THE CORDS AND FIBERS, THEREBY SECURING THEM IN POSITION RELATIVE TO EACH OTHER. RETENTION OF THE POLYTETRAFLUOROETHYLENE FIBERS AGAINST DELAMINATION IS, IN ONE PREFERRED METHOD, MAXIMIZED BY USE OF A MANDREL HAVING A HIGHLY POLISHED LAYER OF POLYTETRAFLUOROETHYLENE THEREON. IN REMOVING THE HARDENED BARING COMPOSITE FROM THE MANDREL, THE INTEGRITY OF THE PLASTIC MATRIX WHICH SECURES THE POLYETRAFLUOROETHYLENE FIBERS IN PLACE IS MAINTAINED.
摘要:
A novel method and apparatus for producing plain or leno woven wire tire cord fabric, in which fabric the metal wire cord warps are interwoven with relatively widely spaced continuous textile filament picks and which is characterized by high dimensional stability and maintenance of uniformity of cord distribution during take-up as well as during calendering and subsequent tire building operations, are disclosed. The fabric can be woven on a textile loom of generally conventional construction but provided with special auxiliary equipment designed to maintain a required tension control on the tire cords both when they enter the loom and when they leave the loom as components of the woven fabric. This abstract is not to be taken either as a complete exposition or as a limitation of the present invention, however, the full nature and extent of the invention being discernible only by reference to and from the entire disclosure.