Abstract: An inking roller is provided which has both inking and non-inking portions and which has substantially uniform deflection characteristics across its entire axial length; and, an improved apparatus and method for printing using such roller is also provided.

Abstract: A compressible printing blanket and method of manufacture, in which the blanket has at least one base fabric layer, an elastomeric face, and an intermediate compressible layer. The compressible layer is formed of a microporous material having cavities with interconnected passages. The material is made by admixing particles of hydrated magnesium sulfate in an elastomeric matrix, creating a blowing effect, and leaching the particles from the matrix.

Abstract: A substantially trapezoidal endless belt structure is provided which has reduced coefficient of friction raw-edged non-parallel sides, a plurality of layers of frictioned fabric of different thicknesses, and a load-carrying cord which may be made of a thermally stable material.

Abstract: An endless power transmission belt body and a banded belt employing a plurality of such bodies are provided wherein each belt body comprises a tension section, a compression section, a continuous longitudinally extending load-carrying cord disposed between the sections and defined by a plurality of helically wound turns, and a platform on at least one side of the load-carrying cord with the platform having a fabric base layer and an elastomeric cord-engaging layer. The fabric base layer supports the plurality of turns in precise rectilinear alignment at any cross section along the belt body providing substantially equal load distribution in the turns promoting longer belt life and enabling winding of the cord at a comparatively large helix angle.

Abstract: A hand portable device for fastening a holding bar on a printing blanket and method of fastening such holding bar is provided and the device employs cooperating rollers to urge portions of such holding bar in clamping engagement against opposed surfaces of the blanket.

Abstract: A toothed endless power transmission belt made primarily of elastomeric material is provided and the belt has an arched cross-sectional configuration throughout its entire endless path.

Abstract: Apparatus for producing a continuous flexible reinforced tubular conduit is provided and utilizes a plurality of elongated rigid mandrels each having a non-yielding outside surface and such mandrels are moved continuously through a fabrication area while operatively associated in aligned end-to-end relation where at least one wire is formed around the mandrels in a continuous non-rotating helical coil. An extruder head is provided and extrudes a plastic tube around the coil which is urged and bonded thereagainst to define a conduit whereupon the conduit is subsequently separated from its associated mandrel.

Abstract: A printing blanket and method of making same is provided wherein such blanket comprises a base structure, a surface layer made of a fluorocarbon elastomer, and a binder layer comprised of a polychloroprene elastomer which provides optimum adhesion between the base structure and the surface layer.

Abstract: An endless power transmission belt structure is provided and made of a thermoplastic elastomer having an oriented crystalline structure about substantially its entire endless path, and oriented only along this path.

Abstract: A hose construction including a corrugated and a curved construction and method of making same are provided and the hose construction comprises at least one layer portion made primarily of an elastomeric material having randomly distributed elongated fibers embedded therein in substantially parallel relation with the fibers extending in a helical pattern about a reference axis of the hose construction and at an angle relative thereto.

Abstract: An endless power transmission belt made primarily of elastomeric materials is provided and comprises a plurality of laterally spaced belt elements which are interconnected by a tie band with the belt elements each having a tension section, a load-carrying section, and a compression section and each of the elements has a plurality of teeth defined in its compression section with the teeth in each belt element being staggered relative to teeth in an immediately adjacent belt element.

Abstract: An endless power transmission belt made primarily of elastomeric material is provided and has a compression section comprising a plurality of teeth defining the inside portion of the belt and each of the teeth has at least one groove extending therethrough substantially transverse thereto.

Abstract: An improved hickey roller and method of making same is provided wherein such roller has a longitudinal axis and comprises an outer portion made of an elastomeric matrix having a substantially cylindrical outside surface and a plurality of elongated fibers having inner portions embedded in the matrix and outer portions extending outwardly from the cylindrical surface to define a brushlike construction. The elongated fibers are arranged approximately parallel to the longitudinal axis and the fibers have a denier ranging between 4 and 8 and each fiber has a cohesive strength which is greater than the cohesive strength of the matrix and greater than the adhesive force holding each fiber in the matrix.

Abstract: An endless power transmission belt for operation in an endless path is provided and comprises a plurality of laterally spaced belt elements and a tie band interconnecting the belt elements. The tie band comprises a plurality of cooperating layers with one of the layers comprising a plurality of tensile members arranged in spaced substantially parallel relation along the endless path and with each of the tensile members extending across the entire transverse dimension of the tie band; and, the tensile members provide the strength for holding the belt elements in spaced relation. Another of the layers of the plurality of layers of the tie band is in the form of at least one fabric layer which improves the overall structural integrity of the tie band.

Abstract: An endless power transmission belt and method of making same is provided wherein such belt is made primarily of an elastomeric material and the belt is a flexible, cool running, stress-relieved belt, wherein these characteristics are imparted to the belt by cooperating components thereof including a continuous fabric layer which defines the inside surface of the belt and the fabric layer has a plurality of folded portions extending into the compression section of such belt at spaced positions along the endless path of the belt. Each of the folded portions has associated portions of fabric in contact at an associated interface and the interfaces serve as stress-relief slits for the belt with the associated portions of fabric serving as fabric cushions on opposite sides of an associated stress-relief slit.

Abstract: An endless power transmission belt structure and method of making same comprised of a plurality of thermoplastic elastomeric layers with each layer having properties which are different from properties of an adjoining layer and each layer being particularly suited for the location and arrangement thereof in the belt structure.

Abstract: Method of severing a flexible reinforced elastomeric conduit supported on a plurality of elongated rigid mandrels is provided so that each mandrel has a length of conduit therearound which is approximately equal to the length of the mandrel.

Abstract: A trapezoidal endless power transmission belt structure is provided which is made primarily of elastomeric material and has a pair of oppositely arranged surfaces disposed in spaced relation to define an outside and inside surface of the belt structure and has a load-carrying section arranged midway between the inside and outside surfaces. The belt structure has a tension section and a compression section which are of similar construction and each is comprised of a plurality of layers including a fiber-loaded layer disposed adjacent the load-carrying section and a fabric layer disposed remote from the load-carrying section; and, the fabric layers and fiber-loaded layers cooperate to assure that the belt structure has longitudinal flexibility yet has transverse rigidity or stiffness sufficient to enable the belt structure to be operated in associated sheaves free of shear planes parallel to the load-carrying section.

Abstract: An endless power transmission belt made primarily of an elastomeric material is provided and has a load-carrying section, a ribbed section adjacent the load-carrying section with the ribbed section having a plurality of ribs and the ribs being defined by a plurality of alternating projections and recesses, and a knit cover fabric bonded against the ribs and defining the inside surface of the belt with the knit fabric affording extensibility in a plurality of directions to assure the belt is particularly adapted to be operated in associated sheaves with minimum stresses being imposed thereon due to the cover fabric.

Abstract: A textile cot and method of making same is provided wherein such cot has an elastomeric outer portion and a core supporting the outer portion with the core being at least one helically wound elongated strip capable of being expanded radially a sufficient amount to provide a press fit against an associated cylindrical supporting roller.