Abstract: An endless power transmission belt and method of making same is provided wherein such belt is defined by a helically wound elongated strip of polymeric material having load-carrying means extending throughout its length with the strip having adjoining turns thereof bonded together so that the polymeric material thereof is a homogeneous mass and the belt is a unitary structure.

Abstract: An irradiated polyethylene tube is supported on a mandrel with adhesive material applied against its outside surface whereupon a first tubular layer is braided against the adhesive means followed by a tubular layer of neoprene rubber followed by braiding a second tubular layer against the neoprene rubber to define an assembly which is subjected to a controlled temperature environment to simultaneously vulcanize the rubber and bond the tube and tubular layers together defining the hose construction as a unitary structure.

Abstract: A method of making endless power transmission belts each having at least a toothed outside surface is provided by building a belt sleeve on a drum and providing a reusable tubular polymeric curing jacket having a toothed inside surface around the sleeve with the teeth thereof adjacent the sleeve and curing the sleeve with the jacket therearound while subjecting the jacket to pressure such that the toothed inside surface of the jacket defines corresponding outside teeth on the sleeve; and, upon cooling the jacket and sleeve such jacket is readily removed for reuse thereby substantially reducing the cost of providing a toothed outside surface on a belt sleeve and belts defined therefrom.

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 irradiated polyethylene tube is supported on a mandrel with adhesive material applied against its outside surface whereupon a first tubular layer is braided against the adhesive means followed by a tubular layer of neoprene rubber followed by braiding a second tubular layer against the neoprene rubber to define an assembly which is subjected to a controlled temperature environment to simultaneously vulcanize the rubber and bond the tube and tubular layers together defining the hose construction as a unitary structure.

Abstract: A bicycle belt drive system is provided which employs a toothed endless power transmission belt made primarily of polymeric material wherein the teeth of such belt are employed during starting of the bicycle to provide a more positive interconnection between driving and driven pulleys of the drive system and at least one of the pulleys has means for changing the mechanical advantage between the driving pulley and the driven pulley in response to rotational speed changes in the one pulley and thus in the bicycle speed.

Abstract: A power transmission belt structure and method of making same are provided wherein such belt structure has substantially its entire periphery covered by an outer fabric layer adjoined by an elastomeric layer with at least a portion of the elastomeric layer and the fabric layer being the only structure defining a tension section of the belt structure.

Abstract: In a loom picker construction having a picker stick, shuttle-engaging block, and apparatus for holding the block on the stick, an improvement in the holding apparatus is provided and includes a pair of projections extending from opposite sides of the block, and a spring clamp engaging the projections and stick and yieldingly urging the block against the stick.

Abstract: Apparatus for holding an end portion of a printing blanket on an associated printing cylinder is provided and employs an elongate holding bar and bar support which cooperate to hold such end portion in position in a highly efficient manner and the apparatus has double eccentric means for quickly attaching and detaching the holding bar relative to the bar support.

Abstract: A method of permanently marking a rubber product is provided wherein the rubber product has a debossed marking of a particular color in a portion thereof and a layer of rubber is defined as an integral part of the rubber product and surrounds the marking with such layer of rubber having a color which is different than and contrasts the particular color.

Abstract: A compressible printing blanket is provided which has a compressible body comprised of an elastomeric matrix having randomly disposed voids therein and a plurality of layers of discrete fibers bonded together by said matrix as a single mass with each of the layers having its fibers randomly disposed in substantially parallel relation and substantially uniformly throughout the layers with the fibers in each layer being disposed transverse the fibers of an adjoining layer.

Abstract: A method of continuously making a printing blanket construction is provided and comprises the steps of supporting a substrate web in coil form for unwinding rotation, unwinding and moving the forward portion of the substrate web through a laminating station, and laminating a polymeric layer adjacent the substrate web at the station wherein the polymeric layer may serve as a printing face or the method may comprise the process of forming a printing face adjacent the polymeric layer.

Abstract: A carpeting strip, method of making such strip, and carpet employing same are provided wherein such carpeting strip has integral joining means enabling the forming of a substantially invisible seam between an adjoining pair of carpeting strips upon providing a carpet employing such strips.

Abstract: A printing blanket holding bar and printing blanket assembly using same are provided wherein said holding bar comprises a substantially U-shaped member having a bight and a pair of legs extending from opposite ends of the bight and a blanket clamping arm carried by the bight with the arm being adapted to cooperate with the bight to fix an associated end portion of a printing blanket therebetween with the legs being adapted to quickly attach and detach the holding bar relative to a bar support.

Abstract: A molded hose construction and method of making same is provided wherein such hose construction has axially spaced convolutions and a controlled flexibility defined by alternating crests and troughs, and the hose construction has an elastomeric inner layer, an elastomeric outer layer, and an intermediate reinforcing layer made of a fabric material having a substantial open space between cooperating threads defining the fabric material; and the layers are bonded as a unitary structure by strike-through columns of elastomeric material extending through said substantial space with the alternating crests and troughs having a controlled wall thickness throughout which assures the controlled flexibility, and the crests and troughs having been formed with the elastomeric layers in a semi-cured condition to assure said controlled wall thickness thereof.

Abstract: A printing blanket holding bar gage is provided and made of a flat strip having a stepped slot therein which extends inwardly from an edge thereof for receipt of a holding bar and the slot is comprised of a plurality of aligned slot portions each defined by an associated spaced pair of parallel edges having a particular perpendicular distance therebetween with the perpendicular distance between each associated spaced pair of parallel edges being less in each consecutive slot portion disposed inwardly from the edge enabling the gage to be moved into gaging relation with a holding bar and serve as a go no-go gage therefor; and, such gage also has comparators thereon for approximately the thickness of a leg of an associated holding bar brought into gaging association therewith.

Abstract: A smash-recoverable printing blanket having a substantially uniform thickness and method of making same are provided wherein the blanket comprises a plurality of layers including at least one layer adapted to swell upon being contacted by a liquid and a plurality of microcapsules disposed within the blanket with the microcapsules containing the liquid; and, the microcapsules are adapted to be ruptured upon smashing the blanket to thereby release the liquid contained therewithin against the one layer causing swelling thereof and restoring of the adjacent layers substantially to their original position prior to the smashing to define the uniform thickness.

Abstract: An endless power transmission belt is provided which has a twisted helically wound load-carrying cord provided in its load-carrying section with the twisting of such cord being according to an empirical equation and being substantially greater than in previously proposed belts whereby such belt has improved performance characteristics.

Abstract: An endless power transmission belt is provided and comprises a tension section, a compression section, and a load-carrying means bonded between the sections with at least one of the sections having at least one laminated layer and with the laminated layer having a greige fabric and a polymeric material laminated thereagainst with the greige fabric and laminated layer having a thickness ratio therebetween defined by an empirical equation whereby precise control of the polymeric material enables such polymeric material to serve as an anti-shear cushion which protects the greige fabric.

Abstract: A butterfly valve construction is provided and has a valve body comprised of two roughly semicylindrical portions having open ends and such portions have their open ends detachably connected together to define a valve body as a pair of back-to-back roughly D-shaped portions and the D-shaped portions have a pair of valve members each rotatably mounted within an associated D-shaped portion with a device being provided for rotating the valve members to open and close same.