Abstract: A polymer composite includes a thermoplastic plastic polymer having a fine grain metal or metal oxide dispersed therein. Preferably, the fine grains has a size of about 1,000 nm or less. A method of making the polymer composite by adhering a metal layer to a thermoplastic polymer layer in a thermodynamically nonequilibrated condition followed by relaxation of the polymer layer to obtain thermodynamic equilibrium which causes the metal layer to be absorbed by the polymer layer as fine grains is also disclosed.

Abstract: A polymer composite contains colorant molecules dispersed therein. The colorant molecules can be dispersed in the polymer or bound to the polymer molecules. When the polymer is a polyamide, the polyamide is in a noncrystalline state due to the inhibition of crystallization imparted by the size and shape of the colorant molecules because the colorant is separated on a molecular level. A high colorant availability is obtained. A method of producing the polymer composite includes the steps of forming a metastable polymer resin layer, applying a film of colorant to the layer, stabilizing the layer, dissolving the stable layer in a solvent, aspirating the solution to remove impurities and aggregates and then removing the solvent. A polymer composition can be produced by mixing the polymer composite with a polymer.

Abstract: A tensile cord manufacture wherein polyester multifilament cords are heat treated and drawn to provide tensile cords for use in power transmission belts. Preselected characteristics of the original cord, parameters of heat treating and drawing, and characteristics of the formed tensile cords required to provide the improved features of the invention are set forth.

Abstract: An elastomeric electrode having an electrically conductive base, a protective layer enclosing the base formed of an elastomeric material having electrically conductive material selected from the group consisting of highly conductive carbon black, graphite, and glassy carbon distributed therein and present in the amount of 10 to 30 parts by weight to 100 parts by weight of the elastomeric material. A terminal extends from the base to exteriorly of the protective layer.

Abstract: A thermally self-regulating elastomeric composition and heating element made therefrom. The composition includes a body of elastomeric material in which is distributed electrically conductive particulate material, such as carbon black. Short fibers are also distributed in the elastomeric matrix. In the disclosed invention, the short fibers are present in the amount of approximately 0.5 to 20 volume percent. In one alternate form, the matrix is foamed. Different arrangements of the electrodes in electrical conductive association with the thermally self-regulating elastomeric body are disclosed. Preferred proportions and characteristics of the particulate conductive material and short fibers providing optimum thermally self-regulating characteristics of the composition are disclosed.

Abstract: A pressure-responsive variable electrical resistive rubber material including at least one inorganic filler selected from a group consisting of conductive carbon black, short fibers of nonmetallic inorganic material, powder, and whiskers. The filler is dispersed in a matrix formed of an electrically insulative rubber. The rubber material exhibits a gradually reducing resistance value as a gradually increased pressing force is applied thereto. The rubber material provides a wide range of relationship between the applied force and the electrical resistance thereof. The rubber material is adapted for use as a pressure sensor having excellent fatigue creep resistance.

Abstract: In a transmissivity inspection apparatus, laser beam is radiated onto an object to be inspected. Irregularly reflected laser light components produced from the object are detected by a photoelectric converter element. The transmissivity of the object with respect to the laser beam is inspected by a discriminator, based on a specific pattern of the irregularly reflected laser light components detected by the photoelectric converter element. The specific pattern of a transparent substance differs from that of a nontransparent substance, thereby to discriminate the nontransparent substance from the transparent substance.

Abstract: A manufacture of an impact-resistant power transmission belt tensile cord and belt using the same. The tensile cords of the invention are caused to have coordinated characteristics of toughness, elongation under load, shrinkage, and shrinkage stress so as to provide absorption of longitudinal and transverse impact shock forces to the belt during high power transmission therethrough, with minimized dimensional changes of the belt over the useful life thereof, permitting the belt to be utilized in multiple parallel drive applications in extremely rigorous environments with minimized maintenance. The tensile cords are adhesively coated, thermally drawn and set multifilament polyester cords.

Abstract: Desired letters or other patterns to be drawn are traced with a finger on a pattern input part provided in a sewing machine frame, and patterns are selected by recognizing said letters or other patterns. The machine operator only inputs by sensitively tracing the said letter or other pattern without requiring observations to the input part.

Abstract: A printing color indicating member is furnished to a non-printing portion of an ink impregnated porous substance body, so that a desired printing color can be exactly designated, and the porous substance body of the desired color may be easily chosen, irrespectively of the colored outer appearance of the ink impregnated porous substance body. The color indicating member being higher in density than the ink impregnated porous substance.

Abstract: A toothed belt having a fabric adhered to the toothed portion of the belt formed of synthetic resin yarns having an ultimate viscosity of greater than approximately 1.30. In the illustrated embodiment, the yarns extending in the longitudinal direction of the belt are fully processed yarns. The cloth is preferably a woven cloth wherein one or the other of the weft and warp are wooly processed. The use of the disclosed cloth provides a substantial improvement in resistance of the belt to cracking and shearing of the teeth in use.

Abstract: A sewing machine is provided with an upper thread dyeing mechanism for dyeing an upper thread a given color while driving the sewing machine. An upper thread feeding mechanism is also provided for the sewing machine and operative in combination with the dyeing mechanism when a stitching operation is initiated or a change in color of the upper thread is required. A predetermined amount of the upper thread, which remains to be located on the sewing machine, is drawn out by the feeding mechanism, while being colored by the dyeing mechanism.

Abstract: A drive belt (10) having an elongated body (11) provided with tensile cords (12). The belt is provided with teeth, or cogs, (13) and a two-ply reinforcement is provided on the surface of the teeth, or cogs, including an inner layer (15) and an outer layer (17). The inner layer is formed of parallel yarn, or twine, elements (16), which may be spirally wrapped to extend in the longitudinal direction of the belt. The outer layer is formed of a woven or knit cloth, and in the illustrated embodiment, is formed of a sailcloth having a highly elastic warp extending in the longitudinal direction of the belt and an inelastic weft for providing improved transverse rigidity and strength. The first layer yarn (16) and second layer warp (19) preferably have a ductility of greater than 50%. A number of candidate materials for the high ductility yarns is disclosed.

Abstract: The invention provides a method for instantly dyeing a sewing machine thread without interrupting the stitching operation with a sewing machine. The method comprises the steps of adding a dyestuff and/or pigment to a photo-setting resin solution to prepare a dyeing liquid, applying the dyeing liquid to the thread to be colored and subjecting the thread to irradation of ultraviolet rays for setting the dyeing liquid, thereby forming a colored film on the thread. The photo-setting solution is set or hardened by ultraviolet rays, by radical polymerization, cationic polymerization and cross-linking reaction.

Abstract: The invention provides a method for instantly dyeing a sewing machine thread without necessity of interrupting the stitching operation with a sewing machine. The method is implemented with a dyeing liquid consisting of 2-15 wt. % of a water color paste, 15-30 wt. % of an acrylic ester emulsion and the reminder water, the dyeing liquid being uniformly applied to the thread by way of sponge or felt. The thread is then brought into contact with a plate heated to a temperature of 180.degree.-240.degree. C. for 1-3 seconds for permanent set of the dyeing liquid on the thread.